/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-17 23:21:39,304 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-17 23:21:39,306 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-17 23:21:39,366 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-17 23:21:39,401 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-17 23:21:39,401 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-17 23:21:39,402 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-17 23:21:39,404 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-01-17 23:21:39,426 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-17 23:21:39,426 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-17 23:21:39,427 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-17 23:21:39,427 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-17 23:21:39,427 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-17 23:21:39,427 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-17 23:21:39,428 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-17 23:21:39,428 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-17 23:21:39,428 INFO L138 SettingsManager]: * Use SBE=true [2022-01-17 23:21:39,428 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-17 23:21:39,428 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-17 23:21:39,429 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-17 23:21:39,429 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-17 23:21:39,429 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-17 23:21:39,429 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-17 23:21:39,429 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-17 23:21:39,429 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-17 23:21:39,429 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-17 23:21:39,429 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-17 23:21:39,429 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-17 23:21:39,429 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-17 23:21:39,429 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-17 23:21:39,430 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-17 23:21:39,430 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-17 23:21:39,430 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-17 23:21:39,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-17 23:21:39,431 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-17 23:21:39,431 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-17 23:21:39,431 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-17 23:21:39,431 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-17 23:21:39,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-17 23:21:39,431 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-17 23:21:39,431 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-17 23:21:39,431 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-17 23:21:39,587 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-17 23:21:39,601 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-17 23:21:39,602 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-17 23:21:39,603 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-17 23:21:39,603 INFO L275 PluginConnector]: CDTParser initialized [2022-01-17 23:21:39,604 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i [2022-01-17 23:21:39,656 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cc8e2a87/2a227ac3345046bea6e4efdc8c288e13/FLAGe095e9aab [2022-01-17 23:21:40,161 INFO L306 CDTParser]: Found 1 translation units. [2022-01-17 23:21:40,162 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i [2022-01-17 23:21:40,185 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cc8e2a87/2a227ac3345046bea6e4efdc8c288e13/FLAGe095e9aab [2022-01-17 23:21:40,688 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cc8e2a87/2a227ac3345046bea6e4efdc8c288e13 [2022-01-17 23:21:40,691 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-17 23:21:40,692 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-17 23:21:40,694 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-17 23:21:40,694 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-17 23:21:40,711 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-17 23:21:40,711 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.01 11:21:40" (1/1) ... [2022-01-17 23:21:40,712 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6de26530 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:21:40, skipping insertion in model container [2022-01-17 23:21:40,712 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.01 11:21:40" (1/1) ... [2022-01-17 23:21:40,717 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-17 23:21:40,748 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-17 23:21:41,227 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i[76084,76097] [2022-01-17 23:21:41,254 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-17 23:21:41,259 INFO L203 MainTranslator]: Completed pre-run [2022-01-17 23:21:41,285 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i[76084,76097] [2022-01-17 23:21:41,298 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-17 23:21:41,368 INFO L208 MainTranslator]: Completed translation [2022-01-17 23:21:41,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:21:41 WrapperNode [2022-01-17 23:21:41,368 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-17 23:21:41,369 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-17 23:21:41,369 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-17 23:21:41,369 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-17 23:21:41,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:21:41" (1/1) ... [2022-01-17 23:21:41,394 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:21:41" (1/1) ... [2022-01-17 23:21:41,426 INFO L137 Inliner]: procedures = 482, calls = 46, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 134 [2022-01-17 23:21:41,426 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-17 23:21:41,427 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-17 23:21:41,427 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-17 23:21:41,427 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-17 23:21:41,432 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:21:41" (1/1) ... [2022-01-17 23:21:41,432 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:21:41" (1/1) ... [2022-01-17 23:21:41,435 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:21:41" (1/1) ... [2022-01-17 23:21:41,436 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:21:41" (1/1) ... [2022-01-17 23:21:41,443 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:21:41" (1/1) ... [2022-01-17 23:21:41,459 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:21:41" (1/1) ... [2022-01-17 23:21:41,462 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:21:41" (1/1) ... [2022-01-17 23:21:41,465 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-17 23:21:41,466 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-17 23:21:41,466 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-17 23:21:41,466 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-17 23:21:41,467 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:21:41" (1/1) ... [2022-01-17 23:21:41,471 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-17 23:21:41,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-17 23:21:41,498 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-17 23:21:41,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-17 23:21:41,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-17 23:21:41,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-17 23:21:41,522 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-01-17 23:21:41,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-17 23:21:41,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-01-17 23:21:41,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-17 23:21:41,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-17 23:21:41,522 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-01-17 23:21:41,522 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-01-17 23:21:41,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-17 23:21:41,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-17 23:21:41,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-17 23:21:41,523 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-17 23:21:41,676 INFO L234 CfgBuilder]: Building ICFG [2022-01-17 23:21:41,677 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-17 23:21:41,837 INFO L275 CfgBuilder]: Performing block encoding [2022-01-17 23:21:41,842 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-17 23:21:41,843 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-17 23:21:41,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.01 11:21:41 BoogieIcfgContainer [2022-01-17 23:21:41,844 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-17 23:21:41,845 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-17 23:21:41,845 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-17 23:21:41,847 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-17 23:21:41,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.01 11:21:40" (1/3) ... [2022-01-17 23:21:41,847 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c0ba638 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.01 11:21:41, skipping insertion in model container [2022-01-17 23:21:41,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:21:41" (2/3) ... [2022-01-17 23:21:41,848 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c0ba638 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.01 11:21:41, skipping insertion in model container [2022-01-17 23:21:41,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.01 11:21:41" (3/3) ... [2022-01-17 23:21:41,848 INFO L111 eAbstractionObserver]: Analyzing ICFG race-3_1-container_of-global.i [2022-01-17 23:21:41,851 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-17 23:21:41,851 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-17 23:21:41,851 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-01-17 23:21:41,852 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-17 23:21:41,875 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,875 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,875 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,876 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,876 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,876 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,876 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,876 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,876 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,876 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,876 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,876 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,876 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,877 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,877 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,877 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,877 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,877 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,877 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,877 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,877 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,878 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,878 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,878 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,878 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,878 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,878 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,878 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,878 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,878 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,879 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,879 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,879 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,879 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,879 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,879 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,879 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,880 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,880 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,880 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,880 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,880 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,880 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,880 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,880 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,881 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,881 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,881 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,881 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,881 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,881 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,881 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,881 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,882 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,882 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,882 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,882 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,882 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,882 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,882 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,882 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,882 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,883 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,883 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,883 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,883 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,883 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,883 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,883 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,883 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,883 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,883 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,884 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,884 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,884 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,884 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,884 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,884 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,884 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,884 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,884 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,884 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,885 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,885 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,885 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,885 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,885 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,885 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,885 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,885 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,885 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,886 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,886 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,886 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,886 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,886 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,886 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,887 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,887 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,887 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,887 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,887 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,887 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,887 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,887 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,887 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,888 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,888 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,888 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,888 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,888 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,888 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,888 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,889 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,889 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,889 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,890 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,890 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,891 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,891 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,891 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,891 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,891 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,891 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,891 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,891 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,892 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,893 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,893 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,893 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,893 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,893 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,893 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,893 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,893 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,893 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:21:41,896 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-01-17 23:21:41,919 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-17 23:21:41,923 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-17 23:21:41,923 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-01-17 23:21:41,931 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 192 places, 194 transitions, 404 flow [2022-01-17 23:21:42,203 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9892 states, 9882 states have (on average 2.8408216960129526) internal successors, (28073), 9891 states have internal predecessors, (28073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:42,239 INFO L276 IsEmpty]: Start isEmpty. Operand has 9892 states, 9882 states have (on average 2.8408216960129526) internal successors, (28073), 9891 states have internal predecessors, (28073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:42,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-01-17 23:21:42,245 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:42,245 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:21:42,246 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:21:42,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:42,252 INFO L85 PathProgramCache]: Analyzing trace with hash -974822883, now seen corresponding path program 1 times [2022-01-17 23:21:42,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:42,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219409926] [2022-01-17 23:21:42,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:42,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:42,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:42,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:42,684 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:42,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219409926] [2022-01-17 23:21:42,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219409926] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:42,685 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:42,685 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-17 23:21:42,686 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637795756] [2022-01-17 23:21:42,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:42,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-17 23:21:42,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:42,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-17 23:21:42,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-17 23:21:42,741 INFO L87 Difference]: Start difference. First operand has 9892 states, 9882 states have (on average 2.8408216960129526) internal successors, (28073), 9891 states have internal predecessors, (28073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:43,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:43,085 INFO L93 Difference]: Finished difference Result 9496 states and 26552 transitions. [2022-01-17 23:21:43,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-17 23:21:43,088 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2022-01-17 23:21:43,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:43,132 INFO L225 Difference]: With dead ends: 9496 [2022-01-17 23:21:43,132 INFO L226 Difference]: Without dead ends: 7725 [2022-01-17 23:21:43,133 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-01-17 23:21:43,137 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 176 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:43,138 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 658 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-17 23:21:43,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7725 states. [2022-01-17 23:21:43,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7725 to 7722. [2022-01-17 23:21:43,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7722 states, 7715 states have (on average 2.7870382372002593) internal successors, (21502), 7721 states have internal predecessors, (21502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:43,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7722 states to 7722 states and 21502 transitions. [2022-01-17 23:21:43,412 INFO L78 Accepts]: Start accepts. Automaton has 7722 states and 21502 transitions. Word has length 45 [2022-01-17 23:21:43,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:43,413 INFO L470 AbstractCegarLoop]: Abstraction has 7722 states and 21502 transitions. [2022-01-17 23:21:43,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:43,413 INFO L276 IsEmpty]: Start isEmpty. Operand 7722 states and 21502 transitions. [2022-01-17 23:21:43,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-01-17 23:21:43,414 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:43,414 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:21:43,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-17 23:21:43,415 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:21:43,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:43,416 INFO L85 PathProgramCache]: Analyzing trace with hash 2102646053, now seen corresponding path program 1 times [2022-01-17 23:21:43,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:43,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922989332] [2022-01-17 23:21:43,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:43,417 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:43,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:43,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:43,529 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:43,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922989332] [2022-01-17 23:21:43,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922989332] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:43,529 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:43,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-17 23:21:43,530 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342073469] [2022-01-17 23:21:43,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:43,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-17 23:21:43,532 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:43,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-17 23:21:43,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-17 23:21:43,533 INFO L87 Difference]: Start difference. First operand 7722 states and 21502 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:43,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:43,691 INFO L93 Difference]: Finished difference Result 7727 states and 21507 transitions. [2022-01-17 23:21:43,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-17 23:21:43,692 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2022-01-17 23:21:43,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:43,719 INFO L225 Difference]: With dead ends: 7727 [2022-01-17 23:21:43,719 INFO L226 Difference]: Without dead ends: 7727 [2022-01-17 23:21:43,723 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-01-17 23:21:43,724 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 261 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:43,726 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [261 Valid, 584 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-17 23:21:43,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7727 states. [2022-01-17 23:21:43,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7727 to 7720. [2022-01-17 23:21:43,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7720 states, 7714 states have (on average 2.787140264454239) internal successors, (21500), 7719 states have internal predecessors, (21500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:43,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7720 states to 7720 states and 21500 transitions. [2022-01-17 23:21:43,956 INFO L78 Accepts]: Start accepts. Automaton has 7720 states and 21500 transitions. Word has length 53 [2022-01-17 23:21:43,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:43,958 INFO L470 AbstractCegarLoop]: Abstraction has 7720 states and 21500 transitions. [2022-01-17 23:21:43,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:43,958 INFO L276 IsEmpty]: Start isEmpty. Operand 7720 states and 21500 transitions. [2022-01-17 23:21:43,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-01-17 23:21:43,964 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:43,964 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:21:43,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-17 23:21:43,965 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:21:43,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:43,965 INFO L85 PathProgramCache]: Analyzing trace with hash 2061215173, now seen corresponding path program 1 times [2022-01-17 23:21:43,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:43,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714869341] [2022-01-17 23:21:43,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:43,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:44,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:44,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:44,070 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:44,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714869341] [2022-01-17 23:21:44,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714869341] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:44,071 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:44,071 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-17 23:21:44,071 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435853486] [2022-01-17 23:21:44,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:44,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-17 23:21:44,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:44,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-17 23:21:44,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-17 23:21:44,072 INFO L87 Difference]: Start difference. First operand 7720 states and 21500 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:44,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:44,289 INFO L93 Difference]: Finished difference Result 11589 states and 32208 transitions. [2022-01-17 23:21:44,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-17 23:21:44,289 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-01-17 23:21:44,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:44,320 INFO L225 Difference]: With dead ends: 11589 [2022-01-17 23:21:44,320 INFO L226 Difference]: Without dead ends: 11589 [2022-01-17 23:21:44,321 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2022-01-17 23:21:44,321 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 435 mSDsluCounter, 648 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 435 SdHoareTripleChecker+Valid, 864 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:44,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [435 Valid, 864 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-17 23:21:44,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11589 states. [2022-01-17 23:21:44,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11589 to 8649. [2022-01-17 23:21:44,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8649 states, 8644 states have (on average 2.787482646922721) internal successors, (24095), 8648 states have internal predecessors, (24095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:44,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8649 states to 8649 states and 24095 transitions. [2022-01-17 23:21:44,609 INFO L78 Accepts]: Start accepts. Automaton has 8649 states and 24095 transitions. Word has length 76 [2022-01-17 23:21:44,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:44,610 INFO L470 AbstractCegarLoop]: Abstraction has 8649 states and 24095 transitions. [2022-01-17 23:21:44,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:44,610 INFO L276 IsEmpty]: Start isEmpty. Operand 8649 states and 24095 transitions. [2022-01-17 23:21:44,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-01-17 23:21:44,612 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:44,612 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:21:44,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-17 23:21:44,612 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:21:44,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:44,613 INFO L85 PathProgramCache]: Analyzing trace with hash 856568329, now seen corresponding path program 1 times [2022-01-17 23:21:44,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:44,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193475956] [2022-01-17 23:21:44,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:44,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:44,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:44,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:44,678 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:44,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193475956] [2022-01-17 23:21:44,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193475956] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:44,678 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:44,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-17 23:21:44,678 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248081157] [2022-01-17 23:21:44,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:44,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-17 23:21:44,679 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:44,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-17 23:21:44,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-17 23:21:44,679 INFO L87 Difference]: Start difference. First operand 8649 states and 24095 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:44,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:44,913 INFO L93 Difference]: Finished difference Result 12371 states and 34243 transitions. [2022-01-17 23:21:44,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-17 23:21:44,914 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2022-01-17 23:21:44,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:44,932 INFO L225 Difference]: With dead ends: 12371 [2022-01-17 23:21:44,932 INFO L226 Difference]: Without dead ends: 10304 [2022-01-17 23:21:44,932 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-01-17 23:21:44,933 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 341 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 876 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:44,933 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [341 Valid, 876 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-17 23:21:44,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10304 states. [2022-01-17 23:21:45,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10304 to 10010. [2022-01-17 23:21:45,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10010 states, 10006 states have (on average 2.790125924445333) internal successors, (27918), 10009 states have internal predecessors, (27918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:45,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10010 states to 10010 states and 27918 transitions. [2022-01-17 23:21:45,165 INFO L78 Accepts]: Start accepts. Automaton has 10010 states and 27918 transitions. Word has length 84 [2022-01-17 23:21:45,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:45,165 INFO L470 AbstractCegarLoop]: Abstraction has 10010 states and 27918 transitions. [2022-01-17 23:21:45,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:45,165 INFO L276 IsEmpty]: Start isEmpty. Operand 10010 states and 27918 transitions. [2022-01-17 23:21:45,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-01-17 23:21:45,173 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:45,173 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:21:45,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-17 23:21:45,174 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:21:45,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:45,174 INFO L85 PathProgramCache]: Analyzing trace with hash -488309147, now seen corresponding path program 1 times [2022-01-17 23:21:45,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:45,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578714074] [2022-01-17 23:21:45,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:45,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:45,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:45,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:45,264 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:45,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578714074] [2022-01-17 23:21:45,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578714074] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:45,264 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:45,264 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-17 23:21:45,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188768604] [2022-01-17 23:21:45,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:45,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-17 23:21:45,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:45,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-17 23:21:45,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-17 23:21:45,266 INFO L87 Difference]: Start difference. First operand 10010 states and 27918 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:45,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:45,300 INFO L93 Difference]: Finished difference Result 3377 states and 9148 transitions. [2022-01-17 23:21:45,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-17 23:21:45,301 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-01-17 23:21:45,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:45,309 INFO L225 Difference]: With dead ends: 3377 [2022-01-17 23:21:45,310 INFO L226 Difference]: Without dead ends: 3377 [2022-01-17 23:21:45,310 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-17 23:21:45,311 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 181 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 630 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:45,312 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [181 Valid, 630 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-17 23:21:45,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3377 states. [2022-01-17 23:21:45,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3377 to 3377. [2022-01-17 23:21:45,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3377 states, 3375 states have (on average 2.7105185185185183) internal successors, (9148), 3376 states have internal predecessors, (9148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:45,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3377 states to 3377 states and 9148 transitions. [2022-01-17 23:21:45,361 INFO L78 Accepts]: Start accepts. Automaton has 3377 states and 9148 transitions. Word has length 96 [2022-01-17 23:21:45,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:45,362 INFO L470 AbstractCegarLoop]: Abstraction has 3377 states and 9148 transitions. [2022-01-17 23:21:45,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:45,362 INFO L276 IsEmpty]: Start isEmpty. Operand 3377 states and 9148 transitions. [2022-01-17 23:21:45,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-17 23:21:45,373 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:45,373 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:21:45,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-17 23:21:45,373 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:21:45,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:45,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1501505866, now seen corresponding path program 1 times [2022-01-17 23:21:45,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:45,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997537121] [2022-01-17 23:21:45,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:45,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:45,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:45,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:45,892 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:45,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997537121] [2022-01-17 23:21:45,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997537121] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:45,892 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:45,892 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-17 23:21:45,892 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755977567] [2022-01-17 23:21:45,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:45,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-17 23:21:45,893 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:45,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-17 23:21:45,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2022-01-17 23:21:45,893 INFO L87 Difference]: Start difference. First operand 3377 states and 9148 transitions. Second operand has 15 states, 15 states have (on average 8.6) internal successors, (129), 15 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:46,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:46,435 INFO L93 Difference]: Finished difference Result 3872 states and 10217 transitions. [2022-01-17 23:21:46,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-17 23:21:46,435 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 8.6) internal successors, (129), 15 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-17 23:21:46,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:46,442 INFO L225 Difference]: With dead ends: 3872 [2022-01-17 23:21:46,442 INFO L226 Difference]: Without dead ends: 3872 [2022-01-17 23:21:46,443 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=210, Invalid=602, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:21:46,444 INFO L933 BasicCegarLoop]: 176 mSDtfsCounter, 597 mSDsluCounter, 1011 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 597 SdHoareTripleChecker+Valid, 1158 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:46,446 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [597 Valid, 1158 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-17 23:21:46,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3872 states. [2022-01-17 23:21:46,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3872 to 3626. [2022-01-17 23:21:46,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3626 states, 3624 states have (on average 2.6735651214128033) internal successors, (9689), 3625 states have internal predecessors, (9689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:46,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3626 states to 3626 states and 9689 transitions. [2022-01-17 23:21:46,490 INFO L78 Accepts]: Start accepts. Automaton has 3626 states and 9689 transitions. Word has length 129 [2022-01-17 23:21:46,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:46,490 INFO L470 AbstractCegarLoop]: Abstraction has 3626 states and 9689 transitions. [2022-01-17 23:21:46,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 8.6) internal successors, (129), 15 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:46,490 INFO L276 IsEmpty]: Start isEmpty. Operand 3626 states and 9689 transitions. [2022-01-17 23:21:46,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-17 23:21:46,496 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:46,496 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:21:46,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-17 23:21:46,496 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:21:46,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:46,498 INFO L85 PathProgramCache]: Analyzing trace with hash -2130164636, now seen corresponding path program 2 times [2022-01-17 23:21:46,498 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:46,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641197146] [2022-01-17 23:21:46,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:46,498 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:46,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:47,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:47,107 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:47,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641197146] [2022-01-17 23:21:47,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641197146] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:47,108 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:47,108 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:21:47,108 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877134960] [2022-01-17 23:21:47,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:47,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:21:47,108 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:47,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:21:47,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:21:47,109 INFO L87 Difference]: Start difference. First operand 3626 states and 9689 transitions. Second operand has 18 states, 18 states have (on average 7.166666666666667) internal successors, (129), 18 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:47,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:47,983 INFO L93 Difference]: Finished difference Result 4414 states and 11364 transitions. [2022-01-17 23:21:47,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-17 23:21:47,984 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.166666666666667) internal successors, (129), 18 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-17 23:21:47,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:47,991 INFO L225 Difference]: With dead ends: 4414 [2022-01-17 23:21:47,991 INFO L226 Difference]: Without dead ends: 4414 [2022-01-17 23:21:47,992 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=286, Invalid=836, Unknown=0, NotChecked=0, Total=1122 [2022-01-17 23:21:47,992 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 712 mSDsluCounter, 1668 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 712 SdHoareTripleChecker+Valid, 1825 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:47,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [712 Valid, 1825 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 719 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:21:47,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4414 states. [2022-01-17 23:21:48,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4414 to 3766. [2022-01-17 23:21:48,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3766 states, 3764 states have (on average 2.6644527098831032) internal successors, (10029), 3765 states have internal predecessors, (10029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:48,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3766 states to 3766 states and 10029 transitions. [2022-01-17 23:21:48,089 INFO L78 Accepts]: Start accepts. Automaton has 3766 states and 10029 transitions. Word has length 129 [2022-01-17 23:21:48,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:48,090 INFO L470 AbstractCegarLoop]: Abstraction has 3766 states and 10029 transitions. [2022-01-17 23:21:48,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.166666666666667) internal successors, (129), 18 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:48,090 INFO L276 IsEmpty]: Start isEmpty. Operand 3766 states and 10029 transitions. [2022-01-17 23:21:48,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-17 23:21:48,114 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:48,114 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:21:48,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-17 23:21:48,115 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:21:48,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:48,115 INFO L85 PathProgramCache]: Analyzing trace with hash -2066657718, now seen corresponding path program 3 times [2022-01-17 23:21:48,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:48,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651606046] [2022-01-17 23:21:48,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:48,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:48,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:48,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:48,469 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:48,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651606046] [2022-01-17 23:21:48,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651606046] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:48,469 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:48,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-17 23:21:48,469 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51172204] [2022-01-17 23:21:48,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:48,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-17 23:21:48,470 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:48,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-17 23:21:48,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2022-01-17 23:21:48,470 INFO L87 Difference]: Start difference. First operand 3766 states and 10029 transitions. Second operand has 15 states, 15 states have (on average 8.6) internal successors, (129), 15 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:49,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:49,028 INFO L93 Difference]: Finished difference Result 4483 states and 11557 transitions. [2022-01-17 23:21:49,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-17 23:21:49,029 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 8.6) internal successors, (129), 15 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-17 23:21:49,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:49,036 INFO L225 Difference]: With dead ends: 4483 [2022-01-17 23:21:49,037 INFO L226 Difference]: Without dead ends: 4483 [2022-01-17 23:21:49,037 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=221, Invalid=591, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:21:49,037 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 595 mSDsluCounter, 1390 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 595 SdHoareTripleChecker+Valid, 1555 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:49,037 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [595 Valid, 1555 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-17 23:21:49,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4483 states. [2022-01-17 23:21:49,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4483 to 3733. [2022-01-17 23:21:49,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3733 states, 3731 states have (on average 2.6671133744304476) internal successors, (9951), 3732 states have internal predecessors, (9951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:49,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3733 states to 3733 states and 9951 transitions. [2022-01-17 23:21:49,085 INFO L78 Accepts]: Start accepts. Automaton has 3733 states and 9951 transitions. Word has length 129 [2022-01-17 23:21:49,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:49,085 INFO L470 AbstractCegarLoop]: Abstraction has 3733 states and 9951 transitions. [2022-01-17 23:21:49,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 8.6) internal successors, (129), 15 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:49,085 INFO L276 IsEmpty]: Start isEmpty. Operand 3733 states and 9951 transitions. [2022-01-17 23:21:49,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-17 23:21:49,090 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:49,091 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:21:49,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-17 23:21:49,091 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:21:49,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:49,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1403360924, now seen corresponding path program 4 times [2022-01-17 23:21:49,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:49,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256463965] [2022-01-17 23:21:49,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:49,092 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:49,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:49,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:49,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:49,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256463965] [2022-01-17 23:21:49,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256463965] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:49,610 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:49,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:21:49,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691012804] [2022-01-17 23:21:49,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:49,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:21:49,611 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:49,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:21:49,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:21:49,611 INFO L87 Difference]: Start difference. First operand 3733 states and 9951 transitions. Second operand has 18 states, 18 states have (on average 7.166666666666667) internal successors, (129), 18 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:50,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:50,625 INFO L93 Difference]: Finished difference Result 6349 states and 16559 transitions. [2022-01-17 23:21:50,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-17 23:21:50,625 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.166666666666667) internal successors, (129), 18 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-17 23:21:50,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:50,641 INFO L225 Difference]: With dead ends: 6349 [2022-01-17 23:21:50,641 INFO L226 Difference]: Without dead ends: 6349 [2022-01-17 23:21:50,642 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-01-17 23:21:50,652 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 779 mSDsluCounter, 1955 mSDsCounter, 0 mSdLazyCounter, 852 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 779 SdHoareTripleChecker+Valid, 2129 SdHoareTripleChecker+Invalid, 895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:50,652 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [779 Valid, 2129 Invalid, 895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 852 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:21:50,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6349 states. [2022-01-17 23:21:50,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6349 to 3803. [2022-01-17 23:21:50,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3803 states, 3801 states have (on average 2.6732438831886345) internal successors, (10161), 3802 states have internal predecessors, (10161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:50,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3803 states to 3803 states and 10161 transitions. [2022-01-17 23:21:50,763 INFO L78 Accepts]: Start accepts. Automaton has 3803 states and 10161 transitions. Word has length 129 [2022-01-17 23:21:50,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:50,764 INFO L470 AbstractCegarLoop]: Abstraction has 3803 states and 10161 transitions. [2022-01-17 23:21:50,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.166666666666667) internal successors, (129), 18 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:50,764 INFO L276 IsEmpty]: Start isEmpty. Operand 3803 states and 10161 transitions. [2022-01-17 23:21:50,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-17 23:21:50,770 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:50,771 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:21:50,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-17 23:21:50,771 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:21:50,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:50,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1236110944, now seen corresponding path program 5 times [2022-01-17 23:21:50,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:50,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694480787] [2022-01-17 23:21:50,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:50,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:50,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:51,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:51,132 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:51,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694480787] [2022-01-17 23:21:51,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694480787] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:51,133 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:51,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-17 23:21:51,133 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33944341] [2022-01-17 23:21:51,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:51,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-17 23:21:51,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:51,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-17 23:21:51,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2022-01-17 23:21:51,134 INFO L87 Difference]: Start difference. First operand 3803 states and 10161 transitions. Second operand has 15 states, 15 states have (on average 8.6) internal successors, (129), 15 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:51,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:51,553 INFO L93 Difference]: Finished difference Result 4758 states and 12434 transitions. [2022-01-17 23:21:51,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:21:51,553 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 8.6) internal successors, (129), 15 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-17 23:21:51,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:51,561 INFO L225 Difference]: With dead ends: 4758 [2022-01-17 23:21:51,562 INFO L226 Difference]: Without dead ends: 4758 [2022-01-17 23:21:51,562 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=206, Invalid=496, Unknown=0, NotChecked=0, Total=702 [2022-01-17 23:21:51,562 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 548 mSDsluCounter, 1297 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 548 SdHoareTripleChecker+Valid, 1482 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:51,562 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [548 Valid, 1482 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-17 23:21:51,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4758 states. [2022-01-17 23:21:51,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4758 to 4293. [2022-01-17 23:21:51,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4293 states, 4291 states have (on average 2.671405266837567) internal successors, (11463), 4292 states have internal predecessors, (11463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:51,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4293 states to 4293 states and 11463 transitions. [2022-01-17 23:21:51,622 INFO L78 Accepts]: Start accepts. Automaton has 4293 states and 11463 transitions. Word has length 129 [2022-01-17 23:21:51,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:51,622 INFO L470 AbstractCegarLoop]: Abstraction has 4293 states and 11463 transitions. [2022-01-17 23:21:51,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 8.6) internal successors, (129), 15 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:51,623 INFO L276 IsEmpty]: Start isEmpty. Operand 4293 states and 11463 transitions. [2022-01-17 23:21:51,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-17 23:21:51,629 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:51,629 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:21:51,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-17 23:21:51,630 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:21:51,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:51,630 INFO L85 PathProgramCache]: Analyzing trace with hash 97790622, now seen corresponding path program 6 times [2022-01-17 23:21:51,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:51,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936706705] [2022-01-17 23:21:51,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:51,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:51,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:51,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:51,995 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:51,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936706705] [2022-01-17 23:21:51,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936706705] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:51,995 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:51,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-17 23:21:51,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014278747] [2022-01-17 23:21:51,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:51,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-17 23:21:51,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:51,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-17 23:21:51,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2022-01-17 23:21:51,997 INFO L87 Difference]: Start difference. First operand 4293 states and 11463 transitions. Second operand has 15 states, 15 states have (on average 8.6) internal successors, (129), 15 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:52,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:52,508 INFO L93 Difference]: Finished difference Result 4898 states and 12685 transitions. [2022-01-17 23:21:52,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-17 23:21:52,509 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 8.6) internal successors, (129), 15 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-17 23:21:52,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:52,517 INFO L225 Difference]: With dead ends: 4898 [2022-01-17 23:21:52,517 INFO L226 Difference]: Without dead ends: 4898 [2022-01-17 23:21:52,517 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=228, Invalid=584, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:21:52,517 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 673 mSDsluCounter, 1727 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 673 SdHoareTripleChecker+Valid, 1912 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:52,518 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [673 Valid, 1912 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:21:52,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4898 states. [2022-01-17 23:21:52,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4898 to 4194. [2022-01-17 23:21:52,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4194 states, 4192 states have (on average 2.6786736641221376) internal successors, (11229), 4193 states have internal predecessors, (11229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:52,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4194 states to 4194 states and 11229 transitions. [2022-01-17 23:21:52,620 INFO L78 Accepts]: Start accepts. Automaton has 4194 states and 11229 transitions. Word has length 129 [2022-01-17 23:21:52,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:52,620 INFO L470 AbstractCegarLoop]: Abstraction has 4194 states and 11229 transitions. [2022-01-17 23:21:52,620 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 8.6) internal successors, (129), 15 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:52,620 INFO L276 IsEmpty]: Start isEmpty. Operand 4194 states and 11229 transitions. [2022-01-17 23:21:52,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-17 23:21:52,628 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:52,628 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:21:52,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-17 23:21:52,628 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:21:52,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:52,629 INFO L85 PathProgramCache]: Analyzing trace with hash -422935260, now seen corresponding path program 7 times [2022-01-17 23:21:52,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:52,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920532038] [2022-01-17 23:21:52,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:52,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:52,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:53,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:53,089 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:53,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920532038] [2022-01-17 23:21:53,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920532038] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:53,089 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:53,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:21:53,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234941230] [2022-01-17 23:21:53,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:53,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:21:53,090 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:53,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:21:53,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:21:53,091 INFO L87 Difference]: Start difference. First operand 4194 states and 11229 transitions. Second operand has 18 states, 18 states have (on average 7.166666666666667) internal successors, (129), 18 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:54,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:54,111 INFO L93 Difference]: Finished difference Result 6885 states and 18165 transitions. [2022-01-17 23:21:54,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-17 23:21:54,112 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.166666666666667) internal successors, (129), 18 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-17 23:21:54,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:54,130 INFO L225 Difference]: With dead ends: 6885 [2022-01-17 23:21:54,130 INFO L226 Difference]: Without dead ends: 6885 [2022-01-17 23:21:54,131 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=276, Invalid=716, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:21:54,131 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 721 mSDsluCounter, 1469 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 721 SdHoareTripleChecker+Valid, 1681 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:54,132 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [721 Valid, 1681 Invalid, 654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:21:54,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6885 states. [2022-01-17 23:21:54,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6885 to 4894. [2022-01-17 23:21:54,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4894 states, 4892 states have (on average 2.7103434178250203) internal successors, (13259), 4893 states have internal predecessors, (13259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:54,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4894 states to 4894 states and 13259 transitions. [2022-01-17 23:21:54,226 INFO L78 Accepts]: Start accepts. Automaton has 4894 states and 13259 transitions. Word has length 129 [2022-01-17 23:21:54,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:54,226 INFO L470 AbstractCegarLoop]: Abstraction has 4894 states and 13259 transitions. [2022-01-17 23:21:54,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.166666666666667) internal successors, (129), 18 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:54,226 INFO L276 IsEmpty]: Start isEmpty. Operand 4894 states and 13259 transitions. [2022-01-17 23:21:54,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-17 23:21:54,234 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:54,234 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:21:54,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-17 23:21:54,235 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:21:54,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:54,235 INFO L85 PathProgramCache]: Analyzing trace with hash -420432188, now seen corresponding path program 8 times [2022-01-17 23:21:54,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:54,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262613304] [2022-01-17 23:21:54,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:54,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:54,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:54,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:54,799 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:54,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262613304] [2022-01-17 23:21:54,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262613304] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:54,800 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:54,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:21:54,800 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972656944] [2022-01-17 23:21:54,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:54,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:21:54,800 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:54,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:21:54,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:21:54,801 INFO L87 Difference]: Start difference. First operand 4894 states and 13259 transitions. Second operand has 18 states, 18 states have (on average 7.166666666666667) internal successors, (129), 18 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:56,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:56,525 INFO L93 Difference]: Finished difference Result 8309 states and 21767 transitions. [2022-01-17 23:21:56,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-17 23:21:56,526 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.166666666666667) internal successors, (129), 18 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-17 23:21:56,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:56,537 INFO L225 Difference]: With dead ends: 8309 [2022-01-17 23:21:56,537 INFO L226 Difference]: Without dead ends: 8309 [2022-01-17 23:21:56,538 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=464, Invalid=1258, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:21:56,538 INFO L933 BasicCegarLoop]: 291 mSDtfsCounter, 850 mSDsluCounter, 2226 mSDsCounter, 0 mSdLazyCounter, 1071 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 850 SdHoareTripleChecker+Valid, 2446 SdHoareTripleChecker+Invalid, 1144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1071 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:56,538 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [850 Valid, 2446 Invalid, 1144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 1071 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:21:56,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8309 states. [2022-01-17 23:21:56,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8309 to 4894. [2022-01-17 23:21:56,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4894 states, 4892 states have (on average 2.7103434178250203) internal successors, (13259), 4893 states have internal predecessors, (13259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:56,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4894 states to 4894 states and 13259 transitions. [2022-01-17 23:21:56,614 INFO L78 Accepts]: Start accepts. Automaton has 4894 states and 13259 transitions. Word has length 129 [2022-01-17 23:21:56,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:56,614 INFO L470 AbstractCegarLoop]: Abstraction has 4894 states and 13259 transitions. [2022-01-17 23:21:56,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.166666666666667) internal successors, (129), 18 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:56,614 INFO L276 IsEmpty]: Start isEmpty. Operand 4894 states and 13259 transitions. [2022-01-17 23:21:56,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-17 23:21:56,620 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:56,621 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:21:56,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-17 23:21:56,621 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:21:56,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:56,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1617045072, now seen corresponding path program 9 times [2022-01-17 23:21:56,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:56,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616651775] [2022-01-17 23:21:56,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:56,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:56,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:57,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:57,065 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:57,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616651775] [2022-01-17 23:21:57,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616651775] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:57,065 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:57,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:21:57,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921411] [2022-01-17 23:21:57,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:57,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:21:57,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:57,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:21:57,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:21:57,067 INFO L87 Difference]: Start difference. First operand 4894 states and 13259 transitions. Second operand has 18 states, 18 states have (on average 7.166666666666667) internal successors, (129), 18 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:58,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:58,129 INFO L93 Difference]: Finished difference Result 6262 states and 16171 transitions. [2022-01-17 23:21:58,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-17 23:21:58,129 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.166666666666667) internal successors, (129), 18 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-17 23:21:58,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:58,138 INFO L225 Difference]: With dead ends: 6262 [2022-01-17 23:21:58,138 INFO L226 Difference]: Without dead ends: 6262 [2022-01-17 23:21:58,138 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=271, Invalid=851, Unknown=0, NotChecked=0, Total=1122 [2022-01-17 23:21:58,138 INFO L933 BasicCegarLoop]: 218 mSDtfsCounter, 643 mSDsluCounter, 1558 mSDsCounter, 0 mSdLazyCounter, 644 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 643 SdHoareTripleChecker+Valid, 1729 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:58,139 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [643 Valid, 1729 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 644 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:21:58,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6262 states. [2022-01-17 23:21:58,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6262 to 4900. [2022-01-17 23:21:58,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4900 states, 4898 states have (on average 2.7100857492854225) internal successors, (13274), 4899 states have internal predecessors, (13274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:58,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4900 states to 4900 states and 13274 transitions. [2022-01-17 23:21:58,278 INFO L78 Accepts]: Start accepts. Automaton has 4900 states and 13274 transitions. Word has length 129 [2022-01-17 23:21:58,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:58,278 INFO L470 AbstractCegarLoop]: Abstraction has 4900 states and 13274 transitions. [2022-01-17 23:21:58,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.166666666666667) internal successors, (129), 18 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:58,278 INFO L276 IsEmpty]: Start isEmpty. Operand 4900 states and 13274 transitions. [2022-01-17 23:21:58,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-17 23:21:58,284 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:58,284 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:21:58,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-17 23:21:58,285 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:21:58,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:58,285 INFO L85 PathProgramCache]: Analyzing trace with hash -333164114, now seen corresponding path program 10 times [2022-01-17 23:21:58,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:58,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65325126] [2022-01-17 23:21:58,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:58,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:58,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:58,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:58,564 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:58,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65325126] [2022-01-17 23:21:58,564 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65325126] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:58,564 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:58,564 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-17 23:21:58,564 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937638559] [2022-01-17 23:21:58,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:58,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-17 23:21:58,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:58,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-17 23:21:58,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-01-17 23:21:58,565 INFO L87 Difference]: Start difference. First operand 4900 states and 13274 transitions. Second operand has 12 states, 12 states have (on average 10.75) internal successors, (129), 12 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:58,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:58,921 INFO L93 Difference]: Finished difference Result 9436 states and 25085 transitions. [2022-01-17 23:21:58,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-17 23:21:58,922 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.75) internal successors, (129), 12 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-17 23:21:58,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:58,933 INFO L225 Difference]: With dead ends: 9436 [2022-01-17 23:21:58,934 INFO L226 Difference]: Without dead ends: 9436 [2022-01-17 23:21:58,935 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=170, Invalid=382, Unknown=0, NotChecked=0, Total=552 [2022-01-17 23:21:58,936 INFO L933 BasicCegarLoop]: 256 mSDtfsCounter, 809 mSDsluCounter, 790 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 809 SdHoareTripleChecker+Valid, 1033 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:58,936 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [809 Valid, 1033 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-17 23:21:58,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9436 states. [2022-01-17 23:21:59,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9436 to 5124. [2022-01-17 23:21:59,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5124 states, 5122 states have (on average 2.7012885591565796) internal successors, (13836), 5123 states have internal predecessors, (13836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:59,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5124 states to 5124 states and 13836 transitions. [2022-01-17 23:21:59,014 INFO L78 Accepts]: Start accepts. Automaton has 5124 states and 13836 transitions. Word has length 129 [2022-01-17 23:21:59,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:59,014 INFO L470 AbstractCegarLoop]: Abstraction has 5124 states and 13836 transitions. [2022-01-17 23:21:59,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.75) internal successors, (129), 12 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:59,014 INFO L276 IsEmpty]: Start isEmpty. Operand 5124 states and 13836 transitions. [2022-01-17 23:21:59,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-17 23:21:59,020 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:59,020 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:21:59,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-17 23:21:59,021 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:21:59,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:59,021 INFO L85 PathProgramCache]: Analyzing trace with hash 754411924, now seen corresponding path program 11 times [2022-01-17 23:21:59,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:59,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196987837] [2022-01-17 23:21:59,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:59,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:59,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:59,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:59,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:59,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196987837] [2022-01-17 23:21:59,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196987837] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:59,308 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:59,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-17 23:21:59,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150323102] [2022-01-17 23:21:59,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:59,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-17 23:21:59,308 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:59,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-17 23:21:59,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2022-01-17 23:21:59,309 INFO L87 Difference]: Start difference. First operand 5124 states and 13836 transitions. Second operand has 15 states, 15 states have (on average 8.6) internal successors, (129), 15 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:59,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:59,862 INFO L93 Difference]: Finished difference Result 6460 states and 16672 transitions. [2022-01-17 23:21:59,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-17 23:21:59,863 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 8.6) internal successors, (129), 15 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-17 23:21:59,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:59,871 INFO L225 Difference]: With dead ends: 6460 [2022-01-17 23:21:59,871 INFO L226 Difference]: Without dead ends: 6460 [2022-01-17 23:21:59,872 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=221, Invalid=591, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:21:59,872 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 661 mSDsluCounter, 1248 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 661 SdHoareTripleChecker+Valid, 1423 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:59,872 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [661 Valid, 1423 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-17 23:21:59,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6460 states. [2022-01-17 23:21:59,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6460 to 5186. [2022-01-17 23:21:59,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5186 states, 5184 states have (on average 2.6984953703703702) internal successors, (13989), 5185 states have internal predecessors, (13989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:59,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5186 states to 5186 states and 13989 transitions. [2022-01-17 23:21:59,936 INFO L78 Accepts]: Start accepts. Automaton has 5186 states and 13989 transitions. Word has length 129 [2022-01-17 23:21:59,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:59,937 INFO L470 AbstractCegarLoop]: Abstraction has 5186 states and 13989 transitions. [2022-01-17 23:21:59,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 8.6) internal successors, (129), 15 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:59,937 INFO L276 IsEmpty]: Start isEmpty. Operand 5186 states and 13989 transitions. [2022-01-17 23:21:59,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-17 23:21:59,954 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:59,954 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:21:59,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-17 23:21:59,954 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:21:59,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:59,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1478433000, now seen corresponding path program 12 times [2022-01-17 23:21:59,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:59,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977733185] [2022-01-17 23:21:59,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:59,955 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:59,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:00,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:00,224 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:00,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977733185] [2022-01-17 23:22:00,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977733185] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:00,224 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:00,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-17 23:22:00,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730870074] [2022-01-17 23:22:00,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:00,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-17 23:22:00,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:00,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-17 23:22:00,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-01-17 23:22:00,225 INFO L87 Difference]: Start difference. First operand 5186 states and 13989 transitions. Second operand has 12 states, 12 states have (on average 10.75) internal successors, (129), 12 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:00,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:00,566 INFO L93 Difference]: Finished difference Result 10499 states and 27503 transitions. [2022-01-17 23:22:00,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-17 23:22:00,567 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.75) internal successors, (129), 12 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-17 23:22:00,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:00,579 INFO L225 Difference]: With dead ends: 10499 [2022-01-17 23:22:00,579 INFO L226 Difference]: Without dead ends: 10499 [2022-01-17 23:22:00,579 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=185, Invalid=415, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:22:00,580 INFO L933 BasicCegarLoop]: 262 mSDtfsCounter, 879 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 879 SdHoareTripleChecker+Valid, 1019 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:00,580 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [879 Valid, 1019 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-17 23:22:00,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10499 states. [2022-01-17 23:22:00,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10499 to 5312. [2022-01-17 23:22:00,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5312 states, 5310 states have (on average 2.682674199623352) internal successors, (14245), 5311 states have internal predecessors, (14245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:00,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5312 states to 5312 states and 14245 transitions. [2022-01-17 23:22:00,664 INFO L78 Accepts]: Start accepts. Automaton has 5312 states and 14245 transitions. Word has length 129 [2022-01-17 23:22:00,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:00,665 INFO L470 AbstractCegarLoop]: Abstraction has 5312 states and 14245 transitions. [2022-01-17 23:22:00,665 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.75) internal successors, (129), 12 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:00,665 INFO L276 IsEmpty]: Start isEmpty. Operand 5312 states and 14245 transitions. [2022-01-17 23:22:00,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-17 23:22:00,671 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:00,671 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:00,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-17 23:22:00,672 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:00,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:00,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1723672590, now seen corresponding path program 13 times [2022-01-17 23:22:00,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:00,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050550733] [2022-01-17 23:22:00,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:00,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:00,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:01,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:01,165 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:01,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050550733] [2022-01-17 23:22:01,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050550733] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:01,165 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:01,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:22:01,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428090385] [2022-01-17 23:22:01,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:01,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:22:01,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:01,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:22:01,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:22:01,166 INFO L87 Difference]: Start difference. First operand 5312 states and 14245 transitions. Second operand has 19 states, 19 states have (on average 6.7894736842105265) internal successors, (129), 19 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:02,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:02,160 INFO L93 Difference]: Finished difference Result 6564 states and 16886 transitions. [2022-01-17 23:22:02,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-17 23:22:02,160 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.7894736842105265) internal successors, (129), 19 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-17 23:22:02,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:02,168 INFO L225 Difference]: With dead ends: 6564 [2022-01-17 23:22:02,169 INFO L226 Difference]: Without dead ends: 6564 [2022-01-17 23:22:02,169 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=280, Invalid=910, Unknown=0, NotChecked=0, Total=1190 [2022-01-17 23:22:02,169 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 703 mSDsluCounter, 1506 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 703 SdHoareTripleChecker+Valid, 1684 SdHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:02,169 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [703 Valid, 1684 Invalid, 652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:22:02,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6564 states. [2022-01-17 23:22:02,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6564 to 5324. [2022-01-17 23:22:02,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5324 states, 5322 states have (on average 2.682262307403232) internal successors, (14275), 5323 states have internal predecessors, (14275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:02,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5324 states to 5324 states and 14275 transitions. [2022-01-17 23:22:02,243 INFO L78 Accepts]: Start accepts. Automaton has 5324 states and 14275 transitions. Word has length 129 [2022-01-17 23:22:02,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:02,244 INFO L470 AbstractCegarLoop]: Abstraction has 5324 states and 14275 transitions. [2022-01-17 23:22:02,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.7894736842105265) internal successors, (129), 19 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:02,244 INFO L276 IsEmpty]: Start isEmpty. Operand 5324 states and 14275 transitions. [2022-01-17 23:22:02,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-17 23:22:02,250 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:02,250 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:02,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-17 23:22:02,250 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:02,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:02,250 INFO L85 PathProgramCache]: Analyzing trace with hash -444427534, now seen corresponding path program 14 times [2022-01-17 23:22:02,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:02,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454377110] [2022-01-17 23:22:02,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:02,251 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:02,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:02,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:02,708 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:02,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454377110] [2022-01-17 23:22:02,708 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454377110] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:02,708 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:02,708 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-17 23:22:02,709 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419813422] [2022-01-17 23:22:02,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:02,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-17 23:22:02,709 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:02,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-17 23:22:02,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2022-01-17 23:22:02,709 INFO L87 Difference]: Start difference. First operand 5324 states and 14275 transitions. Second operand has 20 states, 20 states have (on average 6.45) internal successors, (129), 20 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:03,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:03,884 INFO L93 Difference]: Finished difference Result 9567 states and 24765 transitions. [2022-01-17 23:22:03,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-17 23:22:03,884 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 6.45) internal successors, (129), 20 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-17 23:22:03,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:03,899 INFO L225 Difference]: With dead ends: 9567 [2022-01-17 23:22:03,899 INFO L226 Difference]: Without dead ends: 9567 [2022-01-17 23:22:03,900 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=306, Invalid=954, Unknown=0, NotChecked=0, Total=1260 [2022-01-17 23:22:03,900 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 744 mSDsluCounter, 1946 mSDsCounter, 0 mSdLazyCounter, 844 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 744 SdHoareTripleChecker+Valid, 2119 SdHoareTripleChecker+Invalid, 900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:03,900 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [744 Valid, 2119 Invalid, 900 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 844 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:22:03,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9567 states. [2022-01-17 23:22:03,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9567 to 5330. [2022-01-17 23:22:03,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5330 states, 5328 states have (on average 2.682057057057057) internal successors, (14290), 5329 states have internal predecessors, (14290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:03,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5330 states to 5330 states and 14290 transitions. [2022-01-17 23:22:03,987 INFO L78 Accepts]: Start accepts. Automaton has 5330 states and 14290 transitions. Word has length 129 [2022-01-17 23:22:03,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:03,988 INFO L470 AbstractCegarLoop]: Abstraction has 5330 states and 14290 transitions. [2022-01-17 23:22:03,988 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.45) internal successors, (129), 20 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:03,988 INFO L276 IsEmpty]: Start isEmpty. Operand 5330 states and 14290 transitions. [2022-01-17 23:22:03,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-17 23:22:03,994 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:03,994 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:03,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-17 23:22:03,994 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:03,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:03,994 INFO L85 PathProgramCache]: Analyzing trace with hash -486268464, now seen corresponding path program 15 times [2022-01-17 23:22:03,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:03,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784257805] [2022-01-17 23:22:03,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:03,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:04,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:04,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:04,268 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:04,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784257805] [2022-01-17 23:22:04,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784257805] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:04,268 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:04,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-17 23:22:04,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748277484] [2022-01-17 23:22:04,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:04,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-17 23:22:04,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:04,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-17 23:22:04,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-01-17 23:22:04,269 INFO L87 Difference]: Start difference. First operand 5330 states and 14290 transitions. Second operand has 12 states, 12 states have (on average 10.75) internal successors, (129), 12 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:04,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:04,631 INFO L93 Difference]: Finished difference Result 8540 states and 22684 transitions. [2022-01-17 23:22:04,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-17 23:22:04,632 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.75) internal successors, (129), 12 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-17 23:22:04,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:04,643 INFO L225 Difference]: With dead ends: 8540 [2022-01-17 23:22:04,644 INFO L226 Difference]: Without dead ends: 8540 [2022-01-17 23:22:04,644 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=156, Invalid=350, Unknown=0, NotChecked=0, Total=506 [2022-01-17 23:22:04,644 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 802 mSDsluCounter, 892 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 802 SdHoareTripleChecker+Valid, 1110 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:04,644 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [802 Valid, 1110 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-17 23:22:04,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8540 states. [2022-01-17 23:22:04,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8540 to 5442. [2022-01-17 23:22:04,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5442 states, 5440 states have (on average 2.6873161764705884) internal successors, (14619), 5441 states have internal predecessors, (14619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:04,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5442 states to 5442 states and 14619 transitions. [2022-01-17 23:22:04,731 INFO L78 Accepts]: Start accepts. Automaton has 5442 states and 14619 transitions. Word has length 129 [2022-01-17 23:22:04,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:04,731 INFO L470 AbstractCegarLoop]: Abstraction has 5442 states and 14619 transitions. [2022-01-17 23:22:04,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.75) internal successors, (129), 12 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:04,731 INFO L276 IsEmpty]: Start isEmpty. Operand 5442 states and 14619 transitions. [2022-01-17 23:22:04,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-17 23:22:04,740 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:04,740 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:04,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-17 23:22:04,740 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:04,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:04,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1619278254, now seen corresponding path program 16 times [2022-01-17 23:22:04,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:04,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111518067] [2022-01-17 23:22:04,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:04,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:04,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:04,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:04,975 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:04,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111518067] [2022-01-17 23:22:04,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111518067] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:04,975 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:04,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-17 23:22:04,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226194212] [2022-01-17 23:22:04,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:04,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-17 23:22:04,975 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:04,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-17 23:22:04,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-17 23:22:04,976 INFO L87 Difference]: Start difference. First operand 5442 states and 14619 transitions. Second operand has 11 states, 11 states have (on average 11.727272727272727) internal successors, (129), 11 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:05,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:05,221 INFO L93 Difference]: Finished difference Result 8327 states and 21591 transitions. [2022-01-17 23:22:05,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-17 23:22:05,222 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.727272727272727) internal successors, (129), 11 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-17 23:22:05,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:05,233 INFO L225 Difference]: With dead ends: 8327 [2022-01-17 23:22:05,233 INFO L226 Difference]: Without dead ends: 8327 [2022-01-17 23:22:05,234 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:22:05,234 INFO L933 BasicCegarLoop]: 271 mSDtfsCounter, 767 mSDsluCounter, 725 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 767 SdHoareTripleChecker+Valid, 984 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:05,234 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [767 Valid, 984 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-17 23:22:05,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8327 states. [2022-01-17 23:22:05,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8327 to 5438. [2022-01-17 23:22:05,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5438 states, 5436 states have (on average 2.6874540103016926) internal successors, (14609), 5437 states have internal predecessors, (14609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:05,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5438 states to 5438 states and 14609 transitions. [2022-01-17 23:22:05,313 INFO L78 Accepts]: Start accepts. Automaton has 5438 states and 14609 transitions. Word has length 129 [2022-01-17 23:22:05,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:05,313 INFO L470 AbstractCegarLoop]: Abstraction has 5438 states and 14609 transitions. [2022-01-17 23:22:05,313 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.727272727272727) internal successors, (129), 11 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:05,313 INFO L276 IsEmpty]: Start isEmpty. Operand 5438 states and 14609 transitions. [2022-01-17 23:22:05,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-17 23:22:05,320 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:05,320 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:05,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-17 23:22:05,320 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:05,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:05,320 INFO L85 PathProgramCache]: Analyzing trace with hash -884417004, now seen corresponding path program 17 times [2022-01-17 23:22:05,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:05,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932506998] [2022-01-17 23:22:05,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:05,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:05,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:05,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:05,696 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:05,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932506998] [2022-01-17 23:22:05,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932506998] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:05,696 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:05,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-17 23:22:05,696 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343382945] [2022-01-17 23:22:05,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:05,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-17 23:22:05,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:05,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-17 23:22:05,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-01-17 23:22:05,697 INFO L87 Difference]: Start difference. First operand 5438 states and 14609 transitions. Second operand has 15 states, 15 states have (on average 8.6) internal successors, (129), 15 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:06,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:06,284 INFO L93 Difference]: Finished difference Result 8003 states and 20969 transitions. [2022-01-17 23:22:06,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-17 23:22:06,285 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 8.6) internal successors, (129), 15 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-17 23:22:06,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:06,351 INFO L225 Difference]: With dead ends: 8003 [2022-01-17 23:22:06,352 INFO L226 Difference]: Without dead ends: 8003 [2022-01-17 23:22:06,352 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=232, Invalid=580, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:22:06,352 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 710 mSDsluCounter, 1417 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 710 SdHoareTripleChecker+Valid, 1615 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:06,352 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [710 Valid, 1615 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:22:06,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8003 states. [2022-01-17 23:22:06,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8003 to 5228. [2022-01-17 23:22:06,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5228 states, 5226 states have (on average 2.6829314963643323) internal successors, (14021), 5227 states have internal predecessors, (14021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:06,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5228 states to 5228 states and 14021 transitions. [2022-01-17 23:22:06,432 INFO L78 Accepts]: Start accepts. Automaton has 5228 states and 14021 transitions. Word has length 129 [2022-01-17 23:22:06,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:06,432 INFO L470 AbstractCegarLoop]: Abstraction has 5228 states and 14021 transitions. [2022-01-17 23:22:06,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 8.6) internal successors, (129), 15 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:06,433 INFO L276 IsEmpty]: Start isEmpty. Operand 5228 states and 14021 transitions. [2022-01-17 23:22:06,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-17 23:22:06,438 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:06,438 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:06,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-17 23:22:06,438 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:06,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:06,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1502832822, now seen corresponding path program 18 times [2022-01-17 23:22:06,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:06,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084796241] [2022-01-17 23:22:06,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:06,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:06,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:06,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:06,683 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:06,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084796241] [2022-01-17 23:22:06,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084796241] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:06,683 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:06,683 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-17 23:22:06,683 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706839464] [2022-01-17 23:22:06,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:06,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-17 23:22:06,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:06,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-17 23:22:06,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-17 23:22:06,685 INFO L87 Difference]: Start difference. First operand 5228 states and 14021 transitions. Second operand has 11 states, 11 states have (on average 11.727272727272727) internal successors, (129), 11 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:06,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:06,948 INFO L93 Difference]: Finished difference Result 5760 states and 15349 transitions. [2022-01-17 23:22:06,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-17 23:22:06,948 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.727272727272727) internal successors, (129), 11 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-17 23:22:06,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:06,956 INFO L225 Difference]: With dead ends: 5760 [2022-01-17 23:22:06,957 INFO L226 Difference]: Without dead ends: 5760 [2022-01-17 23:22:06,957 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=231, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:22:06,961 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 596 mSDsluCounter, 703 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 596 SdHoareTripleChecker+Valid, 931 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:06,961 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [596 Valid, 931 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-17 23:22:06,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5760 states. [2022-01-17 23:22:07,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5760 to 5204. [2022-01-17 23:22:07,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5204 states, 5202 states have (on average 2.683775470972703) internal successors, (13961), 5203 states have internal predecessors, (13961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:07,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5204 states to 5204 states and 13961 transitions. [2022-01-17 23:22:07,025 INFO L78 Accepts]: Start accepts. Automaton has 5204 states and 13961 transitions. Word has length 129 [2022-01-17 23:22:07,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:07,026 INFO L470 AbstractCegarLoop]: Abstraction has 5204 states and 13961 transitions. [2022-01-17 23:22:07,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.727272727272727) internal successors, (129), 11 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:07,026 INFO L276 IsEmpty]: Start isEmpty. Operand 5204 states and 13961 transitions. [2022-01-17 23:22:07,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-17 23:22:07,031 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:07,031 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:07,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-17 23:22:07,032 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:07,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:07,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1806665560, now seen corresponding path program 19 times [2022-01-17 23:22:07,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:07,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98558711] [2022-01-17 23:22:07,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:07,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:07,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:07,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:07,283 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:07,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98558711] [2022-01-17 23:22:07,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98558711] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:07,284 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:07,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-17 23:22:07,284 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549585682] [2022-01-17 23:22:07,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:07,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-17 23:22:07,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:07,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-17 23:22:07,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-01-17 23:22:07,286 INFO L87 Difference]: Start difference. First operand 5204 states and 13961 transitions. Second operand has 12 states, 12 states have (on average 10.75) internal successors, (129), 12 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:07,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:07,618 INFO L93 Difference]: Finished difference Result 7410 states and 19502 transitions. [2022-01-17 23:22:07,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-17 23:22:07,619 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.75) internal successors, (129), 12 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-17 23:22:07,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:07,628 INFO L225 Difference]: With dead ends: 7410 [2022-01-17 23:22:07,629 INFO L226 Difference]: Without dead ends: 7410 [2022-01-17 23:22:07,629 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2022-01-17 23:22:07,630 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 823 mSDsluCounter, 680 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 823 SdHoareTripleChecker+Valid, 900 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:07,630 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [823 Valid, 900 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-17 23:22:07,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7410 states. [2022-01-17 23:22:07,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7410 to 5142. [2022-01-17 23:22:07,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5142 states, 5140 states have (on average 2.680544747081712) internal successors, (13778), 5141 states have internal predecessors, (13778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:07,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5142 states to 5142 states and 13778 transitions. [2022-01-17 23:22:07,697 INFO L78 Accepts]: Start accepts. Automaton has 5142 states and 13778 transitions. Word has length 129 [2022-01-17 23:22:07,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:07,698 INFO L470 AbstractCegarLoop]: Abstraction has 5142 states and 13778 transitions. [2022-01-17 23:22:07,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.75) internal successors, (129), 12 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:07,698 INFO L276 IsEmpty]: Start isEmpty. Operand 5142 states and 13778 transitions. [2022-01-17 23:22:07,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-17 23:22:07,703 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:07,703 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:07,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-17 23:22:07,704 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:07,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:07,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1400725698, now seen corresponding path program 20 times [2022-01-17 23:22:07,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:07,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101643962] [2022-01-17 23:22:07,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:07,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:07,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:08,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:08,002 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:08,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101643962] [2022-01-17 23:22:08,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101643962] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:08,002 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:08,002 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-17 23:22:08,002 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431932634] [2022-01-17 23:22:08,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:08,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-17 23:22:08,003 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:08,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-17 23:22:08,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-01-17 23:22:08,003 INFO L87 Difference]: Start difference. First operand 5142 states and 13778 transitions. Second operand has 16 states, 16 states have (on average 8.0625) internal successors, (129), 16 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:08,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:08,744 INFO L93 Difference]: Finished difference Result 5676 states and 14885 transitions. [2022-01-17 23:22:08,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:22:08,744 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 8.0625) internal successors, (129), 16 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-17 23:22:08,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:08,751 INFO L225 Difference]: With dead ends: 5676 [2022-01-17 23:22:08,751 INFO L226 Difference]: Without dead ends: 5676 [2022-01-17 23:22:08,752 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=294, Invalid=966, Unknown=0, NotChecked=0, Total=1260 [2022-01-17 23:22:08,752 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 634 mSDsluCounter, 1120 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 634 SdHoareTripleChecker+Valid, 1291 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:08,752 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [634 Valid, 1291 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-17 23:22:08,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5676 states. [2022-01-17 23:22:08,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5676 to 5022. [2022-01-17 23:22:08,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5022 states, 5020 states have (on average 2.6888446215139443) internal successors, (13498), 5021 states have internal predecessors, (13498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:08,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5022 states to 5022 states and 13498 transitions. [2022-01-17 23:22:08,810 INFO L78 Accepts]: Start accepts. Automaton has 5022 states and 13498 transitions. Word has length 129 [2022-01-17 23:22:08,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:08,810 INFO L470 AbstractCegarLoop]: Abstraction has 5022 states and 13498 transitions. [2022-01-17 23:22:08,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 8.0625) internal successors, (129), 16 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:08,811 INFO L276 IsEmpty]: Start isEmpty. Operand 5022 states and 13498 transitions. [2022-01-17 23:22:08,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-17 23:22:08,816 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:08,816 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:08,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-17 23:22:08,816 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:08,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:08,816 INFO L85 PathProgramCache]: Analyzing trace with hash -676704622, now seen corresponding path program 21 times [2022-01-17 23:22:08,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:08,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249724714] [2022-01-17 23:22:08,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:08,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:08,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:09,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:09,052 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:09,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249724714] [2022-01-17 23:22:09,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249724714] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:09,052 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:09,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-17 23:22:09,052 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506283311] [2022-01-17 23:22:09,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:09,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-17 23:22:09,052 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:09,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-17 23:22:09,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-01-17 23:22:09,053 INFO L87 Difference]: Start difference. First operand 5022 states and 13498 transitions. Second operand has 12 states, 12 states have (on average 10.75) internal successors, (129), 12 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:09,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:09,396 INFO L93 Difference]: Finished difference Result 5981 states and 15568 transitions. [2022-01-17 23:22:09,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-17 23:22:09,397 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.75) internal successors, (129), 12 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-17 23:22:09,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:09,406 INFO L225 Difference]: With dead ends: 5981 [2022-01-17 23:22:09,406 INFO L226 Difference]: Without dead ends: 5981 [2022-01-17 23:22:09,407 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2022-01-17 23:22:09,407 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 793 mSDsluCounter, 703 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 793 SdHoareTripleChecker+Valid, 925 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:09,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [793 Valid, 925 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-17 23:22:09,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5981 states. [2022-01-17 23:22:09,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5981 to 4592. [2022-01-17 23:22:09,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4592 states, 4590 states have (on average 2.666884531590414) internal successors, (12241), 4591 states have internal predecessors, (12241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:09,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4592 states to 4592 states and 12241 transitions. [2022-01-17 23:22:09,467 INFO L78 Accepts]: Start accepts. Automaton has 4592 states and 12241 transitions. Word has length 129 [2022-01-17 23:22:09,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:09,467 INFO L470 AbstractCegarLoop]: Abstraction has 4592 states and 12241 transitions. [2022-01-17 23:22:09,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.75) internal successors, (129), 12 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:09,468 INFO L276 IsEmpty]: Start isEmpty. Operand 4592 states and 12241 transitions. [2022-01-17 23:22:09,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-17 23:22:09,472 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:09,472 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:09,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-17 23:22:09,472 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:09,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:09,473 INFO L85 PathProgramCache]: Analyzing trace with hash -293802758, now seen corresponding path program 22 times [2022-01-17 23:22:09,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:09,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516623652] [2022-01-17 23:22:09,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:09,473 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:09,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:09,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:09,978 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:09,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516623652] [2022-01-17 23:22:09,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516623652] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:09,978 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:09,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-17 23:22:09,979 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592475969] [2022-01-17 23:22:09,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:09,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-17 23:22:09,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:09,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-17 23:22:09,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2022-01-17 23:22:09,979 INFO L87 Difference]: Start difference. First operand 4592 states and 12241 transitions. Second operand has 20 states, 20 states have (on average 6.45) internal successors, (129), 20 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:10,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:10,819 INFO L93 Difference]: Finished difference Result 5729 states and 14626 transitions. [2022-01-17 23:22:10,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-17 23:22:10,819 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 6.45) internal successors, (129), 20 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-17 23:22:10,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:10,826 INFO L225 Difference]: With dead ends: 5729 [2022-01-17 23:22:10,826 INFO L226 Difference]: Without dead ends: 5729 [2022-01-17 23:22:10,827 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=280, Invalid=980, Unknown=0, NotChecked=0, Total=1260 [2022-01-17 23:22:10,827 INFO L933 BasicCegarLoop]: 206 mSDtfsCounter, 725 mSDsluCounter, 1564 mSDsCounter, 0 mSdLazyCounter, 696 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 725 SdHoareTripleChecker+Valid, 1723 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:10,827 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [725 Valid, 1723 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 696 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:22:10,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5729 states. [2022-01-17 23:22:10,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5729 to 4630. [2022-01-17 23:22:10,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4630 states, 4628 states have (on average 2.665514261019879) internal successors, (12336), 4629 states have internal predecessors, (12336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:10,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4630 states to 4630 states and 12336 transitions. [2022-01-17 23:22:10,882 INFO L78 Accepts]: Start accepts. Automaton has 4630 states and 12336 transitions. Word has length 129 [2022-01-17 23:22:10,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:10,883 INFO L470 AbstractCegarLoop]: Abstraction has 4630 states and 12336 transitions. [2022-01-17 23:22:10,883 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.45) internal successors, (129), 20 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:10,883 INFO L276 IsEmpty]: Start isEmpty. Operand 4630 states and 12336 transitions. [2022-01-17 23:22:10,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-17 23:22:10,888 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:10,888 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:10,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-17 23:22:10,888 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:10,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:10,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1298303702, now seen corresponding path program 23 times [2022-01-17 23:22:10,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:10,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65570522] [2022-01-17 23:22:10,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:10,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:10,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:11,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:11,208 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:11,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65570522] [2022-01-17 23:22:11,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65570522] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:11,208 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:11,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-17 23:22:11,208 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022438397] [2022-01-17 23:22:11,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:11,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-17 23:22:11,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:11,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-17 23:22:11,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-01-17 23:22:11,209 INFO L87 Difference]: Start difference. First operand 4630 states and 12336 transitions. Second operand has 12 states, 12 states have (on average 10.75) internal successors, (129), 12 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:11,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:11,595 INFO L93 Difference]: Finished difference Result 5987 states and 15682 transitions. [2022-01-17 23:22:11,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-17 23:22:11,596 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.75) internal successors, (129), 12 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-17 23:22:11,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:11,603 INFO L225 Difference]: With dead ends: 5987 [2022-01-17 23:22:11,603 INFO L226 Difference]: Without dead ends: 5987 [2022-01-17 23:22:11,604 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=156, Invalid=350, Unknown=0, NotChecked=0, Total=506 [2022-01-17 23:22:11,604 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 636 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 636 SdHoareTripleChecker+Valid, 1066 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:11,604 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [636 Valid, 1066 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-17 23:22:11,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5987 states. [2022-01-17 23:22:11,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5987 to 4496. [2022-01-17 23:22:11,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4496 states, 4494 states have (on average 2.661103693813974) internal successors, (11959), 4495 states have internal predecessors, (11959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:11,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4496 states to 4496 states and 11959 transitions. [2022-01-17 23:22:11,656 INFO L78 Accepts]: Start accepts. Automaton has 4496 states and 11959 transitions. Word has length 129 [2022-01-17 23:22:11,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:11,657 INFO L470 AbstractCegarLoop]: Abstraction has 4496 states and 11959 transitions. [2022-01-17 23:22:11,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.75) internal successors, (129), 12 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:11,657 INFO L276 IsEmpty]: Start isEmpty. Operand 4496 states and 11959 transitions. [2022-01-17 23:22:11,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-17 23:22:11,661 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:11,661 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:11,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-17 23:22:11,662 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:11,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:11,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1517794356, now seen corresponding path program 24 times [2022-01-17 23:22:11,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:11,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494585933] [2022-01-17 23:22:11,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:11,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:11,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:12,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:12,106 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:12,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494585933] [2022-01-17 23:22:12,106 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494585933] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:12,106 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:12,107 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:22:12,107 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049390341] [2022-01-17 23:22:12,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:12,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:22:12,107 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:12,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:22:12,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:22:12,108 INFO L87 Difference]: Start difference. First operand 4496 states and 11959 transitions. Second operand has 19 states, 19 states have (on average 6.7894736842105265) internal successors, (129), 19 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:12,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:12,936 INFO L93 Difference]: Finished difference Result 5725 states and 14552 transitions. [2022-01-17 23:22:12,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-17 23:22:12,936 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.7894736842105265) internal successors, (129), 19 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-17 23:22:12,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:12,945 INFO L225 Difference]: With dead ends: 5725 [2022-01-17 23:22:12,945 INFO L226 Difference]: Without dead ends: 5725 [2022-01-17 23:22:12,946 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=294, Invalid=966, Unknown=0, NotChecked=0, Total=1260 [2022-01-17 23:22:12,950 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 639 mSDsluCounter, 1467 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 639 SdHoareTripleChecker+Valid, 1629 SdHoareTripleChecker+Invalid, 684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:12,950 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [639 Valid, 1629 Invalid, 684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:22:12,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5725 states. [2022-01-17 23:22:12,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5725 to 4556. [2022-01-17 23:22:13,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4556 states, 4554 states have (on average 2.6589811155028547) internal successors, (12109), 4555 states have internal predecessors, (12109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:13,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4556 states to 4556 states and 12109 transitions. [2022-01-17 23:22:13,008 INFO L78 Accepts]: Start accepts. Automaton has 4556 states and 12109 transitions. Word has length 129 [2022-01-17 23:22:13,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:13,008 INFO L470 AbstractCegarLoop]: Abstraction has 4556 states and 12109 transitions. [2022-01-17 23:22:13,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.7894736842105265) internal successors, (129), 19 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:13,008 INFO L276 IsEmpty]: Start isEmpty. Operand 4556 states and 12109 transitions. [2022-01-17 23:22:13,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-17 23:22:13,013 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:13,013 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:13,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-17 23:22:13,015 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:13,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:13,015 INFO L85 PathProgramCache]: Analyzing trace with hash -1684311234, now seen corresponding path program 25 times [2022-01-17 23:22:13,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:13,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056980193] [2022-01-17 23:22:13,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:13,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:13,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:13,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:13,251 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:13,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056980193] [2022-01-17 23:22:13,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056980193] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:13,251 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:13,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-17 23:22:13,251 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657793932] [2022-01-17 23:22:13,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:13,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-17 23:22:13,251 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:13,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-17 23:22:13,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-01-17 23:22:13,252 INFO L87 Difference]: Start difference. First operand 4556 states and 12109 transitions. Second operand has 12 states, 12 states have (on average 10.75) internal successors, (129), 12 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:13,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:13,638 INFO L93 Difference]: Finished difference Result 8752 states and 22949 transitions. [2022-01-17 23:22:13,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-17 23:22:13,638 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.75) internal successors, (129), 12 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-17 23:22:13,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:13,653 INFO L225 Difference]: With dead ends: 8752 [2022-01-17 23:22:13,653 INFO L226 Difference]: Without dead ends: 8752 [2022-01-17 23:22:13,654 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=170, Invalid=382, Unknown=0, NotChecked=0, Total=552 [2022-01-17 23:22:13,654 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 708 mSDsluCounter, 826 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 708 SdHoareTripleChecker+Valid, 1067 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:13,654 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [708 Valid, 1067 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-17 23:22:13,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8752 states. [2022-01-17 23:22:13,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8752 to 4572. [2022-01-17 23:22:13,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4572 states, 4570 states have (on average 2.6599562363238514) internal successors, (12156), 4571 states have internal predecessors, (12156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:13,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4572 states to 4572 states and 12156 transitions. [2022-01-17 23:22:13,734 INFO L78 Accepts]: Start accepts. Automaton has 4572 states and 12156 transitions. Word has length 129 [2022-01-17 23:22:13,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:13,735 INFO L470 AbstractCegarLoop]: Abstraction has 4572 states and 12156 transitions. [2022-01-17 23:22:13,735 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.75) internal successors, (129), 12 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:13,735 INFO L276 IsEmpty]: Start isEmpty. Operand 4572 states and 12156 transitions. [2022-01-17 23:22:13,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-17 23:22:13,739 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:13,739 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:13,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-17 23:22:13,739 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:13,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:13,740 INFO L85 PathProgramCache]: Analyzing trace with hash 379394554, now seen corresponding path program 26 times [2022-01-17 23:22:13,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:13,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619291176] [2022-01-17 23:22:13,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:13,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:13,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:14,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:14,140 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:14,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619291176] [2022-01-17 23:22:14,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619291176] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:14,140 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:14,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:22:14,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917693263] [2022-01-17 23:22:14,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:14,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:22:14,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:14,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:22:14,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:22:14,141 INFO L87 Difference]: Start difference. First operand 4572 states and 12156 transitions. Second operand has 19 states, 19 states have (on average 6.7894736842105265) internal successors, (129), 19 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:14,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:14,945 INFO L93 Difference]: Finished difference Result 5948 states and 15070 transitions. [2022-01-17 23:22:14,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-17 23:22:14,946 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.7894736842105265) internal successors, (129), 19 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-17 23:22:14,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:14,953 INFO L225 Difference]: With dead ends: 5948 [2022-01-17 23:22:14,953 INFO L226 Difference]: Without dead ends: 5948 [2022-01-17 23:22:14,953 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=270, Invalid=920, Unknown=0, NotChecked=0, Total=1190 [2022-01-17 23:22:14,954 INFO L933 BasicCegarLoop]: 219 mSDtfsCounter, 558 mSDsluCounter, 1818 mSDsCounter, 0 mSdLazyCounter, 828 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 1976 SdHoareTripleChecker+Invalid, 858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:14,954 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [558 Valid, 1976 Invalid, 858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 828 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:22:14,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5948 states. [2022-01-17 23:22:15,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5948 to 4574. [2022-01-17 23:22:15,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4574 states, 4572 states have (on average 2.659886264216973) internal successors, (12161), 4573 states have internal predecessors, (12161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:15,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4574 states to 4574 states and 12161 transitions. [2022-01-17 23:22:15,026 INFO L78 Accepts]: Start accepts. Automaton has 4574 states and 12161 transitions. Word has length 129 [2022-01-17 23:22:15,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:15,026 INFO L470 AbstractCegarLoop]: Abstraction has 4574 states and 12161 transitions. [2022-01-17 23:22:15,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.7894736842105265) internal successors, (129), 19 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:15,026 INFO L276 IsEmpty]: Start isEmpty. Operand 4574 states and 12161 transitions. [2022-01-17 23:22:15,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-17 23:22:15,032 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:15,032 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:15,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-17 23:22:15,032 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:15,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:15,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1865729682, now seen corresponding path program 27 times [2022-01-17 23:22:15,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:15,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258152167] [2022-01-17 23:22:15,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:15,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:15,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:15,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:15,546 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:15,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258152167] [2022-01-17 23:22:15,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258152167] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:15,546 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:15,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-17 23:22:15,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728263655] [2022-01-17 23:22:15,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:15,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-17 23:22:15,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:15,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-17 23:22:15,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=320, Unknown=0, NotChecked=0, Total=380 [2022-01-17 23:22:15,547 INFO L87 Difference]: Start difference. First operand 4574 states and 12161 transitions. Second operand has 20 states, 20 states have (on average 6.45) internal successors, (129), 20 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:16,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:16,362 INFO L93 Difference]: Finished difference Result 5534 states and 14188 transitions. [2022-01-17 23:22:16,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-17 23:22:16,363 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 6.45) internal successors, (129), 20 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-17 23:22:16,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:16,370 INFO L225 Difference]: With dead ends: 5534 [2022-01-17 23:22:16,370 INFO L226 Difference]: Without dead ends: 5534 [2022-01-17 23:22:16,371 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=293, Invalid=967, Unknown=0, NotChecked=0, Total=1260 [2022-01-17 23:22:16,371 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 662 mSDsluCounter, 1591 mSDsCounter, 0 mSdLazyCounter, 771 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 662 SdHoareTripleChecker+Valid, 1725 SdHoareTripleChecker+Invalid, 828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:16,372 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [662 Valid, 1725 Invalid, 828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 771 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:22:16,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5534 states. [2022-01-17 23:22:16,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5534 to 4608. [2022-01-17 23:22:16,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4608 states, 4606 states have (on average 2.6587060356057317) internal successors, (12246), 4607 states have internal predecessors, (12246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:16,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4608 states to 4608 states and 12246 transitions. [2022-01-17 23:22:16,425 INFO L78 Accepts]: Start accepts. Automaton has 4608 states and 12246 transitions. Word has length 129 [2022-01-17 23:22:16,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:16,426 INFO L470 AbstractCegarLoop]: Abstraction has 4608 states and 12246 transitions. [2022-01-17 23:22:16,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.45) internal successors, (129), 20 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:16,426 INFO L276 IsEmpty]: Start isEmpty. Operand 4608 states and 12246 transitions. [2022-01-17 23:22:16,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-17 23:22:16,430 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:16,430 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:16,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-17 23:22:16,431 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:16,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:16,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1964375988, now seen corresponding path program 28 times [2022-01-17 23:22:16,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:16,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198857084] [2022-01-17 23:22:16,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:16,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:16,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:16,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:16,970 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:16,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198857084] [2022-01-17 23:22:16,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198857084] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:16,971 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:16,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-17 23:22:16,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782907523] [2022-01-17 23:22:16,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:16,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-17 23:22:16,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:16,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-17 23:22:16,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2022-01-17 23:22:16,972 INFO L87 Difference]: Start difference. First operand 4608 states and 12246 transitions. Second operand has 20 states, 20 states have (on average 6.45) internal successors, (129), 20 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:17,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:17,907 INFO L93 Difference]: Finished difference Result 5365 states and 13853 transitions. [2022-01-17 23:22:17,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-17 23:22:17,910 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 6.45) internal successors, (129), 20 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-17 23:22:17,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:17,916 INFO L225 Difference]: With dead ends: 5365 [2022-01-17 23:22:17,916 INFO L226 Difference]: Without dead ends: 5365 [2022-01-17 23:22:17,917 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=371, Invalid=1351, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:22:17,917 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 634 mSDsluCounter, 1960 mSDsCounter, 0 mSdLazyCounter, 952 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 634 SdHoareTripleChecker+Valid, 2103 SdHoareTripleChecker+Invalid, 984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:17,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [634 Valid, 2103 Invalid, 984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 952 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:22:17,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5365 states. [2022-01-17 23:22:17,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5365 to 4614. [2022-01-17 23:22:17,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4614 states, 4612 states have (on average 2.6584995663486555) internal successors, (12261), 4613 states have internal predecessors, (12261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:17,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4614 states to 4614 states and 12261 transitions. [2022-01-17 23:22:17,961 INFO L78 Accepts]: Start accepts. Automaton has 4614 states and 12261 transitions. Word has length 129 [2022-01-17 23:22:17,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:17,961 INFO L470 AbstractCegarLoop]: Abstraction has 4614 states and 12261 transitions. [2022-01-17 23:22:17,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.45) internal successors, (129), 20 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:17,961 INFO L276 IsEmpty]: Start isEmpty. Operand 4614 states and 12261 transitions. [2022-01-17 23:22:17,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-17 23:22:17,965 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:17,965 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:17,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-17 23:22:17,965 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:17,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:17,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1775281868, now seen corresponding path program 29 times [2022-01-17 23:22:17,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:17,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784555831] [2022-01-17 23:22:17,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:17,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:18,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:18,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:18,433 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:18,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784555831] [2022-01-17 23:22:18,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784555831] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:18,433 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:18,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:22:18,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476967513] [2022-01-17 23:22:18,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:18,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:22:18,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:18,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:22:18,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:22:18,434 INFO L87 Difference]: Start difference. First operand 4614 states and 12261 transitions. Second operand has 19 states, 19 states have (on average 6.7894736842105265) internal successors, (129), 19 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:19,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:19,364 INFO L93 Difference]: Finished difference Result 5902 states and 14963 transitions. [2022-01-17 23:22:19,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-17 23:22:19,364 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.7894736842105265) internal successors, (129), 19 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-17 23:22:19,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:19,371 INFO L225 Difference]: With dead ends: 5902 [2022-01-17 23:22:19,371 INFO L226 Difference]: Without dead ends: 5902 [2022-01-17 23:22:19,372 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=305, Invalid=955, Unknown=0, NotChecked=0, Total=1260 [2022-01-17 23:22:19,372 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 565 mSDsluCounter, 1806 mSDsCounter, 0 mSdLazyCounter, 819 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 565 SdHoareTripleChecker+Valid, 1981 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:19,372 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [565 Valid, 1981 Invalid, 864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 819 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:22:19,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5902 states. [2022-01-17 23:22:19,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5902 to 4616. [2022-01-17 23:22:19,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4616 states, 4614 states have (on average 2.658430862592111) internal successors, (12266), 4615 states have internal predecessors, (12266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:19,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4616 states to 4616 states and 12266 transitions. [2022-01-17 23:22:19,420 INFO L78 Accepts]: Start accepts. Automaton has 4616 states and 12266 transitions. Word has length 129 [2022-01-17 23:22:19,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:19,421 INFO L470 AbstractCegarLoop]: Abstraction has 4616 states and 12266 transitions. [2022-01-17 23:22:19,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.7894736842105265) internal successors, (129), 19 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:19,421 INFO L276 IsEmpty]: Start isEmpty. Operand 4616 states and 12266 transitions. [2022-01-17 23:22:19,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-17 23:22:19,425 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:19,425 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:19,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-17 23:22:19,425 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:19,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:19,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1381285626, now seen corresponding path program 30 times [2022-01-17 23:22:19,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:19,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467041395] [2022-01-17 23:22:19,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:19,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:19,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:19,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:19,904 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:19,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467041395] [2022-01-17 23:22:19,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467041395] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:19,904 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:19,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-17 23:22:19,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778645715] [2022-01-17 23:22:19,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:19,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-17 23:22:19,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:19,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-17 23:22:19,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2022-01-17 23:22:19,905 INFO L87 Difference]: Start difference. First operand 4616 states and 12266 transitions. Second operand has 20 states, 20 states have (on average 6.45) internal successors, (129), 20 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:20,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:20,958 INFO L93 Difference]: Finished difference Result 6193 states and 15603 transitions. [2022-01-17 23:22:20,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-17 23:22:20,958 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 6.45) internal successors, (129), 20 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-17 23:22:20,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:20,966 INFO L225 Difference]: With dead ends: 6193 [2022-01-17 23:22:20,966 INFO L226 Difference]: Without dead ends: 6193 [2022-01-17 23:22:20,966 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=311, Invalid=1021, Unknown=0, NotChecked=0, Total=1332 [2022-01-17 23:22:20,967 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 655 mSDsluCounter, 2095 mSDsCounter, 0 mSdLazyCounter, 971 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 655 SdHoareTripleChecker+Valid, 2273 SdHoareTripleChecker+Invalid, 1027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 971 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:20,967 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [655 Valid, 2273 Invalid, 1027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 971 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:22:20,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6193 states. [2022-01-17 23:22:21,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6193 to 4614. [2022-01-17 23:22:21,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4614 states, 4612 states have (on average 2.6584995663486555) internal successors, (12261), 4613 states have internal predecessors, (12261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:21,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4614 states to 4614 states and 12261 transitions. [2022-01-17 23:22:21,016 INFO L78 Accepts]: Start accepts. Automaton has 4614 states and 12261 transitions. Word has length 129 [2022-01-17 23:22:21,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:21,017 INFO L470 AbstractCegarLoop]: Abstraction has 4614 states and 12261 transitions. [2022-01-17 23:22:21,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.45) internal successors, (129), 20 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:21,017 INFO L276 IsEmpty]: Start isEmpty. Operand 4614 states and 12261 transitions. [2022-01-17 23:22:21,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-17 23:22:21,021 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:21,021 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:21,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-17 23:22:21,021 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:21,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:21,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1427346542, now seen corresponding path program 31 times [2022-01-17 23:22:21,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:21,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126091863] [2022-01-17 23:22:21,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:21,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:21,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:21,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:21,502 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:21,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126091863] [2022-01-17 23:22:21,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126091863] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:21,502 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:21,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-17 23:22:21,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898009592] [2022-01-17 23:22:21,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:21,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-17 23:22:21,502 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:21,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-17 23:22:21,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=319, Unknown=0, NotChecked=0, Total=380 [2022-01-17 23:22:21,503 INFO L87 Difference]: Start difference. First operand 4614 states and 12261 transitions. Second operand has 20 states, 20 states have (on average 6.45) internal successors, (129), 20 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:22,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:22,407 INFO L93 Difference]: Finished difference Result 5934 states and 15053 transitions. [2022-01-17 23:22:22,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-17 23:22:22,407 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 6.45) internal successors, (129), 20 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-17 23:22:22,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:22,415 INFO L225 Difference]: With dead ends: 5934 [2022-01-17 23:22:22,415 INFO L226 Difference]: Without dead ends: 5934 [2022-01-17 23:22:22,416 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=304, Invalid=956, Unknown=0, NotChecked=0, Total=1260 [2022-01-17 23:22:22,416 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 672 mSDsluCounter, 1656 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 672 SdHoareTripleChecker+Valid, 1820 SdHoareTripleChecker+Invalid, 807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:22,417 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [672 Valid, 1820 Invalid, 807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 748 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:22:22,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5934 states. [2022-01-17 23:22:22,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5934 to 4632. [2022-01-17 23:22:22,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4632 states, 4630 states have (on average 2.6578833693304538) internal successors, (12306), 4631 states have internal predecessors, (12306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:22,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 12306 transitions. [2022-01-17 23:22:22,490 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 12306 transitions. Word has length 129 [2022-01-17 23:22:22,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:22,490 INFO L470 AbstractCegarLoop]: Abstraction has 4632 states and 12306 transitions. [2022-01-17 23:22:22,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.45) internal successors, (129), 20 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:22,491 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 12306 transitions. [2022-01-17 23:22:22,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-17 23:22:22,497 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:22,497 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:22,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-17 23:22:22,497 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:22,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:22,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1328700236, now seen corresponding path program 32 times [2022-01-17 23:22:22,498 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:22,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172790301] [2022-01-17 23:22:22,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:22,499 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:22,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:22,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:22,757 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:22,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172790301] [2022-01-17 23:22:22,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172790301] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:22,757 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:22,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-17 23:22:22,758 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375790903] [2022-01-17 23:22:22,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:22,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-17 23:22:22,758 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:22,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-17 23:22:22,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-17 23:22:22,760 INFO L87 Difference]: Start difference. First operand 4632 states and 12306 transitions. Second operand has 11 states, 11 states have (on average 11.727272727272727) internal successors, (129), 11 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:22,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:22,955 INFO L93 Difference]: Finished difference Result 5158 states and 13616 transitions. [2022-01-17 23:22:22,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-17 23:22:22,956 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.727272727272727) internal successors, (129), 11 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-17 23:22:22,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:22,961 INFO L225 Difference]: With dead ends: 5158 [2022-01-17 23:22:22,961 INFO L226 Difference]: Without dead ends: 5158 [2022-01-17 23:22:22,961 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=111, Invalid=231, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:22:22,962 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 582 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 582 SdHoareTripleChecker+Valid, 925 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:22,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [582 Valid, 925 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-17 23:22:22,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5158 states. [2022-01-17 23:22:22,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5158 to 4590. [2022-01-17 23:22:23,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4590 states, 4588 states have (on average 2.659328683522232) internal successors, (12201), 4589 states have internal predecessors, (12201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:23,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4590 states to 4590 states and 12201 transitions. [2022-01-17 23:22:23,009 INFO L78 Accepts]: Start accepts. Automaton has 4590 states and 12201 transitions. Word has length 129 [2022-01-17 23:22:23,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:23,009 INFO L470 AbstractCegarLoop]: Abstraction has 4590 states and 12201 transitions. [2022-01-17 23:22:23,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.727272727272727) internal successors, (129), 11 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:23,009 INFO L276 IsEmpty]: Start isEmpty. Operand 4590 states and 12201 transitions. [2022-01-17 23:22:23,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-17 23:22:23,014 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:23,014 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:23,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-17 23:22:23,014 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:23,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:23,014 INFO L85 PathProgramCache]: Analyzing trace with hash 771187926, now seen corresponding path program 33 times [2022-01-17 23:22:23,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:23,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288412105] [2022-01-17 23:22:23,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:23,014 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:23,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:23,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:23,484 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:23,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288412105] [2022-01-17 23:22:23,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288412105] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:23,484 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:23,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-17 23:22:23,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561886445] [2022-01-17 23:22:23,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:23,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-17 23:22:23,484 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:23,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-17 23:22:23,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2022-01-17 23:22:23,485 INFO L87 Difference]: Start difference. First operand 4590 states and 12201 transitions. Second operand has 20 states, 20 states have (on average 6.45) internal successors, (129), 20 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:24,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:24,539 INFO L93 Difference]: Finished difference Result 6423 states and 16078 transitions. [2022-01-17 23:22:24,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-17 23:22:24,539 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 6.45) internal successors, (129), 20 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-17 23:22:24,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:24,547 INFO L225 Difference]: With dead ends: 6423 [2022-01-17 23:22:24,547 INFO L226 Difference]: Without dead ends: 6423 [2022-01-17 23:22:24,548 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=319, Invalid=1013, Unknown=0, NotChecked=0, Total=1332 [2022-01-17 23:22:24,550 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 705 mSDsluCounter, 2210 mSDsCounter, 0 mSdLazyCounter, 1058 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 705 SdHoareTripleChecker+Valid, 2352 SdHoareTripleChecker+Invalid, 1113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:24,550 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [705 Valid, 2352 Invalid, 1113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1058 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:22:24,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6423 states. [2022-01-17 23:22:24,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6423 to 4602. [2022-01-17 23:22:24,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4602 states, 4600 states have (on average 2.658913043478261) internal successors, (12231), 4601 states have internal predecessors, (12231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:24,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4602 states to 4602 states and 12231 transitions. [2022-01-17 23:22:24,619 INFO L78 Accepts]: Start accepts. Automaton has 4602 states and 12231 transitions. Word has length 129 [2022-01-17 23:22:24,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:24,620 INFO L470 AbstractCegarLoop]: Abstraction has 4602 states and 12231 transitions. [2022-01-17 23:22:24,620 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.45) internal successors, (129), 20 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:24,620 INFO L276 IsEmpty]: Start isEmpty. Operand 4602 states and 12231 transitions. [2022-01-17 23:22:24,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-17 23:22:24,624 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:24,624 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:24,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-17 23:22:24,624 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:24,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:24,625 INFO L85 PathProgramCache]: Analyzing trace with hash 729346996, now seen corresponding path program 34 times [2022-01-17 23:22:24,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:24,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77560922] [2022-01-17 23:22:24,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:24,625 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:24,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:25,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:25,105 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:25,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77560922] [2022-01-17 23:22:25,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77560922] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:25,105 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:25,105 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-17 23:22:25,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687781602] [2022-01-17 23:22:25,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:25,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-17 23:22:25,105 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:25,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-17 23:22:25,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2022-01-17 23:22:25,106 INFO L87 Difference]: Start difference. First operand 4602 states and 12231 transitions. Second operand has 20 states, 20 states have (on average 6.45) internal successors, (129), 20 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:26,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:26,135 INFO L93 Difference]: Finished difference Result 6075 states and 15371 transitions. [2022-01-17 23:22:26,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:22:26,135 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 6.45) internal successors, (129), 20 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-17 23:22:26,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:26,142 INFO L225 Difference]: With dead ends: 6075 [2022-01-17 23:22:26,142 INFO L226 Difference]: Without dead ends: 6075 [2022-01-17 23:22:26,143 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=336, Invalid=1070, Unknown=0, NotChecked=0, Total=1406 [2022-01-17 23:22:26,143 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 693 mSDsluCounter, 2161 mSDsCounter, 0 mSdLazyCounter, 1026 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 693 SdHoareTripleChecker+Valid, 2309 SdHoareTripleChecker+Invalid, 1077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:26,143 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [693 Valid, 2309 Invalid, 1077 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1026 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:22:26,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6075 states. [2022-01-17 23:22:26,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6075 to 4584. [2022-01-17 23:22:26,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4584 states, 4582 states have (on average 2.659537319947621) internal successors, (12186), 4583 states have internal predecessors, (12186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:26,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4584 states to 4584 states and 12186 transitions. [2022-01-17 23:22:26,195 INFO L78 Accepts]: Start accepts. Automaton has 4584 states and 12186 transitions. Word has length 129 [2022-01-17 23:22:26,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:26,195 INFO L470 AbstractCegarLoop]: Abstraction has 4584 states and 12186 transitions. [2022-01-17 23:22:26,195 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.45) internal successors, (129), 20 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:26,196 INFO L276 IsEmpty]: Start isEmpty. Operand 4584 states and 12186 transitions. [2022-01-17 23:22:26,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-17 23:22:26,200 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:26,200 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:26,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-17 23:22:26,201 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:26,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:26,201 INFO L85 PathProgramCache]: Analyzing trace with hash -703755404, now seen corresponding path program 35 times [2022-01-17 23:22:26,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:26,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831977492] [2022-01-17 23:22:26,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:26,201 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:26,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:26,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:26,425 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:26,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831977492] [2022-01-17 23:22:26,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831977492] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:26,426 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:26,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-17 23:22:26,426 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003716434] [2022-01-17 23:22:26,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:26,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-17 23:22:26,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:26,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-17 23:22:26,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-01-17 23:22:26,427 INFO L87 Difference]: Start difference. First operand 4584 states and 12186 transitions. Second operand has 12 states, 12 states have (on average 10.75) internal successors, (129), 12 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:26,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:26,773 INFO L93 Difference]: Finished difference Result 7071 states and 18218 transitions. [2022-01-17 23:22:26,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-17 23:22:26,778 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.75) internal successors, (129), 12 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-17 23:22:26,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:26,787 INFO L225 Difference]: With dead ends: 7071 [2022-01-17 23:22:26,787 INFO L226 Difference]: Without dead ends: 7071 [2022-01-17 23:22:26,787 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=170, Invalid=382, Unknown=0, NotChecked=0, Total=552 [2022-01-17 23:22:26,788 INFO L933 BasicCegarLoop]: 256 mSDtfsCounter, 751 mSDsluCounter, 756 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 751 SdHoareTripleChecker+Valid, 997 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:26,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [751 Valid, 997 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-17 23:22:26,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7071 states. [2022-01-17 23:22:26,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7071 to 4566. [2022-01-17 23:22:26,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4566 states, 4564 states have (on average 2.65863277826468) internal successors, (12134), 4565 states have internal predecessors, (12134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:26,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4566 states to 4566 states and 12134 transitions. [2022-01-17 23:22:26,838 INFO L78 Accepts]: Start accepts. Automaton has 4566 states and 12134 transitions. Word has length 129 [2022-01-17 23:22:26,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:26,838 INFO L470 AbstractCegarLoop]: Abstraction has 4566 states and 12134 transitions. [2022-01-17 23:22:26,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.75) internal successors, (129), 12 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:26,839 INFO L276 IsEmpty]: Start isEmpty. Operand 4566 states and 12134 transitions. [2022-01-17 23:22:26,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-17 23:22:26,842 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:26,843 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:26,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-17 23:22:26,843 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:26,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:26,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1842155206, now seen corresponding path program 36 times [2022-01-17 23:22:26,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:26,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123057098] [2022-01-17 23:22:26,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:26,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:26,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:27,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:27,055 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:27,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123057098] [2022-01-17 23:22:27,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123057098] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:27,056 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:27,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-17 23:22:27,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99554828] [2022-01-17 23:22:27,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:27,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-17 23:22:27,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:27,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-17 23:22:27,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-01-17 23:22:27,058 INFO L87 Difference]: Start difference. First operand 4566 states and 12134 transitions. Second operand has 12 states, 12 states have (on average 10.75) internal successors, (129), 12 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:27,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:27,406 INFO L93 Difference]: Finished difference Result 8309 states and 21233 transitions. [2022-01-17 23:22:27,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-17 23:22:27,407 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.75) internal successors, (129), 12 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-17 23:22:27,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:27,417 INFO L225 Difference]: With dead ends: 8309 [2022-01-17 23:22:27,417 INFO L226 Difference]: Without dead ends: 8309 [2022-01-17 23:22:27,417 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=185, Invalid=415, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:22:27,417 INFO L933 BasicCegarLoop]: 287 mSDtfsCounter, 696 mSDsluCounter, 861 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 696 SdHoareTripleChecker+Valid, 1130 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:27,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [696 Valid, 1130 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-17 23:22:27,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8309 states. [2022-01-17 23:22:27,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8309 to 4530. [2022-01-17 23:22:27,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4530 states, 4528 states have (on average 2.6568021201413425) internal successors, (12030), 4529 states have internal predecessors, (12030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:27,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4530 states to 4530 states and 12030 transitions. [2022-01-17 23:22:27,473 INFO L78 Accepts]: Start accepts. Automaton has 4530 states and 12030 transitions. Word has length 129 [2022-01-17 23:22:27,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:27,473 INFO L470 AbstractCegarLoop]: Abstraction has 4530 states and 12030 transitions. [2022-01-17 23:22:27,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.75) internal successors, (129), 12 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:27,473 INFO L276 IsEmpty]: Start isEmpty. Operand 4530 states and 12030 transitions. [2022-01-17 23:22:27,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-17 23:22:27,477 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:27,477 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:27,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-17 23:22:27,477 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:27,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:27,478 INFO L85 PathProgramCache]: Analyzing trace with hash 712926230, now seen corresponding path program 37 times [2022-01-17 23:22:27,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:27,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880869581] [2022-01-17 23:22:27,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:27,478 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:27,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:27,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:27,880 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:27,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880869581] [2022-01-17 23:22:27,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880869581] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:27,880 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:27,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:22:27,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020907481] [2022-01-17 23:22:27,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:27,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:22:27,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:27,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:22:27,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:22:27,881 INFO L87 Difference]: Start difference. First operand 4530 states and 12030 transitions. Second operand has 19 states, 19 states have (on average 6.7894736842105265) internal successors, (129), 19 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:28,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:28,948 INFO L93 Difference]: Finished difference Result 5309 states and 13658 transitions. [2022-01-17 23:22:28,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-17 23:22:28,948 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.7894736842105265) internal successors, (129), 19 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-17 23:22:28,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:28,954 INFO L225 Difference]: With dead ends: 5309 [2022-01-17 23:22:28,954 INFO L226 Difference]: Without dead ends: 5309 [2022-01-17 23:22:28,955 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=289, Invalid=901, Unknown=0, NotChecked=0, Total=1190 [2022-01-17 23:22:28,955 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 631 mSDsluCounter, 2191 mSDsCounter, 0 mSdLazyCounter, 983 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 631 SdHoareTripleChecker+Valid, 2365 SdHoareTripleChecker+Invalid, 1014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:28,955 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [631 Valid, 2365 Invalid, 1014 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 983 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:22:28,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5309 states. [2022-01-17 23:22:28,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5309 to 4524. [2022-01-17 23:22:28,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4524 states, 4522 states have (on average 2.6570101724900486) internal successors, (12015), 4523 states have internal predecessors, (12015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:28,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4524 states to 4524 states and 12015 transitions. [2022-01-17 23:22:28,998 INFO L78 Accepts]: Start accepts. Automaton has 4524 states and 12015 transitions. Word has length 129 [2022-01-17 23:22:28,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:28,999 INFO L470 AbstractCegarLoop]: Abstraction has 4524 states and 12015 transitions. [2022-01-17 23:22:28,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.7894736842105265) internal successors, (129), 19 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:28,999 INFO L276 IsEmpty]: Start isEmpty. Operand 4524 states and 12015 transitions. [2022-01-17 23:22:29,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-17 23:22:29,003 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:29,003 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:29,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-17 23:22:29,003 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:29,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:29,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1569035882, now seen corresponding path program 38 times [2022-01-17 23:22:29,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:29,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232425624] [2022-01-17 23:22:29,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:29,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:29,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:29,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:29,244 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:29,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232425624] [2022-01-17 23:22:29,244 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232425624] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:29,244 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:29,244 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-17 23:22:29,244 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174946309] [2022-01-17 23:22:29,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:29,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-17 23:22:29,245 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:29,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-17 23:22:29,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-17 23:22:29,245 INFO L87 Difference]: Start difference. First operand 4524 states and 12015 transitions. Second operand has 11 states, 11 states have (on average 11.727272727272727) internal successors, (129), 11 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:29,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:29,525 INFO L93 Difference]: Finished difference Result 6074 states and 15810 transitions. [2022-01-17 23:22:29,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-17 23:22:29,525 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.727272727272727) internal successors, (129), 11 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-17 23:22:29,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:29,532 INFO L225 Difference]: With dead ends: 6074 [2022-01-17 23:22:29,532 INFO L226 Difference]: Without dead ends: 6074 [2022-01-17 23:22:29,533 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=110, Invalid=232, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:22:29,533 INFO L933 BasicCegarLoop]: 269 mSDtfsCounter, 557 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 557 SdHoareTripleChecker+Valid, 1176 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:29,533 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [557 Valid, 1176 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-17 23:22:29,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6074 states. [2022-01-17 23:22:29,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6074 to 4420. [2022-01-17 23:22:29,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4420 states, 4418 states have (on average 2.651199637845179) internal successors, (11713), 4419 states have internal predecessors, (11713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:29,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4420 states to 4420 states and 11713 transitions. [2022-01-17 23:22:29,587 INFO L78 Accepts]: Start accepts. Automaton has 4420 states and 11713 transitions. Word has length 129 [2022-01-17 23:22:29,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:29,587 INFO L470 AbstractCegarLoop]: Abstraction has 4420 states and 11713 transitions. [2022-01-17 23:22:29,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.727272727272727) internal successors, (129), 11 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:29,587 INFO L276 IsEmpty]: Start isEmpty. Operand 4420 states and 11713 transitions. [2022-01-17 23:22:29,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-17 23:22:29,591 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:29,591 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:29,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-17 23:22:29,592 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:29,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:29,592 INFO L85 PathProgramCache]: Analyzing trace with hash 871534738, now seen corresponding path program 39 times [2022-01-17 23:22:29,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:29,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20701541] [2022-01-17 23:22:29,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:29,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:29,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:29,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:29,798 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:29,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20701541] [2022-01-17 23:22:29,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20701541] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:29,798 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:29,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-17 23:22:29,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523256224] [2022-01-17 23:22:29,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:29,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-17 23:22:29,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:29,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-17 23:22:29,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-17 23:22:29,799 INFO L87 Difference]: Start difference. First operand 4420 states and 11713 transitions. Second operand has 11 states, 11 states have (on average 11.727272727272727) internal successors, (129), 11 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:30,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:30,027 INFO L93 Difference]: Finished difference Result 4171 states and 10549 transitions. [2022-01-17 23:22:30,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-17 23:22:30,027 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.727272727272727) internal successors, (129), 11 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-17 23:22:30,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:30,033 INFO L225 Difference]: With dead ends: 4171 [2022-01-17 23:22:30,033 INFO L226 Difference]: Without dead ends: 4171 [2022-01-17 23:22:30,033 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=110, Invalid=232, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:22:30,034 INFO L933 BasicCegarLoop]: 261 mSDtfsCounter, 616 mSDsluCounter, 648 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 616 SdHoareTripleChecker+Valid, 894 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:30,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [616 Valid, 894 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-17 23:22:30,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4171 states. [2022-01-17 23:22:30,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4171 to 2799. [2022-01-17 23:22:30,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2799 states, 2798 states have (on average 2.5954253037884203) internal successors, (7262), 2798 states have internal predecessors, (7262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:30,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2799 states to 2799 states and 7262 transitions. [2022-01-17 23:22:30,074 INFO L78 Accepts]: Start accepts. Automaton has 2799 states and 7262 transitions. Word has length 129 [2022-01-17 23:22:30,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:30,074 INFO L470 AbstractCegarLoop]: Abstraction has 2799 states and 7262 transitions. [2022-01-17 23:22:30,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.727272727272727) internal successors, (129), 11 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:30,074 INFO L276 IsEmpty]: Start isEmpty. Operand 2799 states and 7262 transitions. [2022-01-17 23:22:30,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:22:30,077 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:30,077 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:30,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-17 23:22:30,077 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:30,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:30,077 INFO L85 PathProgramCache]: Analyzing trace with hash -825993521, now seen corresponding path program 1 times [2022-01-17 23:22:30,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:30,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069788495] [2022-01-17 23:22:30,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:30,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:30,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:30,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:30,914 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:30,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069788495] [2022-01-17 23:22:30,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069788495] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:30,915 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:30,915 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-17 23:22:30,915 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402397400] [2022-01-17 23:22:30,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:30,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-17 23:22:30,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:30,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-17 23:22:30,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2022-01-17 23:22:30,915 INFO L87 Difference]: Start difference. First operand 2799 states and 7262 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:33,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:33,081 INFO L93 Difference]: Finished difference Result 3089 states and 7840 transitions. [2022-01-17 23:22:33,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:22:33,082 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:22:33,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:33,085 INFO L225 Difference]: With dead ends: 3089 [2022-01-17 23:22:33,085 INFO L226 Difference]: Without dead ends: 2940 [2022-01-17 23:22:33,086 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 505 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=508, Invalid=2354, Unknown=0, NotChecked=0, Total=2862 [2022-01-17 23:22:33,088 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 953 mSDsluCounter, 2374 mSDsCounter, 0 mSdLazyCounter, 1469 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 953 SdHoareTripleChecker+Valid, 2441 SdHoareTripleChecker+Invalid, 1560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:33,089 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [953 Valid, 2441 Invalid, 1560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1469 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:22:33,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2940 states. [2022-01-17 23:22:33,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2940 to 2833. [2022-01-17 23:22:33,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2833 states, 2832 states have (on average 2.593573446327684) internal successors, (7345), 2832 states have internal predecessors, (7345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:33,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2833 states to 2833 states and 7345 transitions. [2022-01-17 23:22:33,114 INFO L78 Accepts]: Start accepts. Automaton has 2833 states and 7345 transitions. Word has length 137 [2022-01-17 23:22:33,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:33,117 INFO L470 AbstractCegarLoop]: Abstraction has 2833 states and 7345 transitions. [2022-01-17 23:22:33,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:33,117 INFO L276 IsEmpty]: Start isEmpty. Operand 2833 states and 7345 transitions. [2022-01-17 23:22:33,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:22:33,119 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:33,119 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:33,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-01-17 23:22:33,119 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:33,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:33,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1613640533, now seen corresponding path program 2 times [2022-01-17 23:22:33,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:33,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10886082] [2022-01-17 23:22:33,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:33,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:33,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:34,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:34,141 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:34,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10886082] [2022-01-17 23:22:34,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10886082] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:34,141 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:34,141 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2022-01-17 23:22:34,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275296398] [2022-01-17 23:22:34,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:34,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-01-17 23:22:34,142 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:34,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-01-17 23:22:34,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=971, Unknown=0, NotChecked=0, Total=1056 [2022-01-17 23:22:34,142 INFO L87 Difference]: Start difference. First operand 2833 states and 7345 transitions. Second operand has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:37,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:37,044 INFO L93 Difference]: Finished difference Result 3019 states and 7690 transitions. [2022-01-17 23:22:37,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-17 23:22:37,044 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:22:37,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:37,048 INFO L225 Difference]: With dead ends: 3019 [2022-01-17 23:22:37,048 INFO L226 Difference]: Without dead ends: 2881 [2022-01-17 23:22:37,049 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 858 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=749, Invalid=3807, Unknown=0, NotChecked=0, Total=4556 [2022-01-17 23:22:37,049 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 1251 mSDsluCounter, 2877 mSDsCounter, 0 mSdLazyCounter, 1886 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1251 SdHoareTripleChecker+Valid, 2911 SdHoareTripleChecker+Invalid, 2002 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 1886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:37,049 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1251 Valid, 2911 Invalid, 2002 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 1886 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-17 23:22:37,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2881 states. [2022-01-17 23:22:37,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2881 to 2831. [2022-01-17 23:22:37,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2831 states, 2830 states have (on average 2.5936395759717317) internal successors, (7340), 2830 states have internal predecessors, (7340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:37,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2831 states to 2831 states and 7340 transitions. [2022-01-17 23:22:37,076 INFO L78 Accepts]: Start accepts. Automaton has 2831 states and 7340 transitions. Word has length 137 [2022-01-17 23:22:37,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:37,076 INFO L470 AbstractCegarLoop]: Abstraction has 2831 states and 7340 transitions. [2022-01-17 23:22:37,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:37,076 INFO L276 IsEmpty]: Start isEmpty. Operand 2831 states and 7340 transitions. [2022-01-17 23:22:37,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:22:37,079 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:37,079 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:37,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-01-17 23:22:37,079 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:37,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:37,079 INFO L85 PathProgramCache]: Analyzing trace with hash -466487063, now seen corresponding path program 3 times [2022-01-17 23:22:37,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:37,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946722385] [2022-01-17 23:22:37,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:37,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:37,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:37,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:37,920 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:37,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946722385] [2022-01-17 23:22:37,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946722385] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:37,920 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:37,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-17 23:22:37,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833112265] [2022-01-17 23:22:37,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:37,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-17 23:22:37,920 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:37,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-17 23:22:37,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=794, Unknown=0, NotChecked=0, Total=870 [2022-01-17 23:22:37,921 INFO L87 Difference]: Start difference. First operand 2831 states and 7340 transitions. Second operand has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:39,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:39,915 INFO L93 Difference]: Finished difference Result 3017 states and 7685 transitions. [2022-01-17 23:22:39,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:22:39,916 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:22:39,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:39,919 INFO L225 Difference]: With dead ends: 3017 [2022-01-17 23:22:39,919 INFO L226 Difference]: Without dead ends: 2869 [2022-01-17 23:22:39,920 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 523 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=522, Invalid=2448, Unknown=0, NotChecked=0, Total=2970 [2022-01-17 23:22:39,920 INFO L933 BasicCegarLoop]: 166 mSDtfsCounter, 1072 mSDsluCounter, 2449 mSDsCounter, 0 mSdLazyCounter, 1587 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1072 SdHoareTripleChecker+Valid, 2512 SdHoareTripleChecker+Invalid, 1689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:39,920 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1072 Valid, 2512 Invalid, 1689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1587 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:22:39,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2869 states. [2022-01-17 23:22:39,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2869 to 2827. [2022-01-17 23:22:39,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2827 states, 2826 states have (on average 2.5909412597310686) internal successors, (7322), 2826 states have internal predecessors, (7322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:39,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2827 states to 2827 states and 7322 transitions. [2022-01-17 23:22:39,946 INFO L78 Accepts]: Start accepts. Automaton has 2827 states and 7322 transitions. Word has length 137 [2022-01-17 23:22:39,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:39,947 INFO L470 AbstractCegarLoop]: Abstraction has 2827 states and 7322 transitions. [2022-01-17 23:22:39,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:39,947 INFO L276 IsEmpty]: Start isEmpty. Operand 2827 states and 7322 transitions. [2022-01-17 23:22:39,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:22:39,949 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:39,949 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:39,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-01-17 23:22:39,949 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:39,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:39,950 INFO L85 PathProgramCache]: Analyzing trace with hash -2075265717, now seen corresponding path program 4 times [2022-01-17 23:22:39,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:39,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920553665] [2022-01-17 23:22:39,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:39,950 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:40,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:40,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:40,968 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:40,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920553665] [2022-01-17 23:22:40,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920553665] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:40,968 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:40,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-17 23:22:40,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407517547] [2022-01-17 23:22:40,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:40,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-17 23:22:40,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:40,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-17 23:22:40,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2022-01-17 23:22:40,969 INFO L87 Difference]: Start difference. First operand 2827 states and 7322 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:43,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:43,446 INFO L93 Difference]: Finished difference Result 3135 states and 7939 transitions. [2022-01-17 23:22:43,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-17 23:22:43,446 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:22:43,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:43,450 INFO L225 Difference]: With dead ends: 3135 [2022-01-17 23:22:43,450 INFO L226 Difference]: Without dead ends: 2941 [2022-01-17 23:22:43,450 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 493 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=523, Invalid=2447, Unknown=0, NotChecked=0, Total=2970 [2022-01-17 23:22:43,451 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 1296 mSDsluCounter, 2362 mSDsCounter, 0 mSdLazyCounter, 1380 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1296 SdHoareTripleChecker+Valid, 2431 SdHoareTripleChecker+Invalid, 1497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 1380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:43,451 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1296 Valid, 2431 Invalid, 1497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 1380 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:22:43,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2941 states. [2022-01-17 23:22:43,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2941 to 2833. [2022-01-17 23:22:43,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2833 states, 2832 states have (on average 2.588629943502825) internal successors, (7331), 2832 states have internal predecessors, (7331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:43,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2833 states to 2833 states and 7331 transitions. [2022-01-17 23:22:43,476 INFO L78 Accepts]: Start accepts. Automaton has 2833 states and 7331 transitions. Word has length 137 [2022-01-17 23:22:43,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:43,476 INFO L470 AbstractCegarLoop]: Abstraction has 2833 states and 7331 transitions. [2022-01-17 23:22:43,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:43,476 INFO L276 IsEmpty]: Start isEmpty. Operand 2833 states and 7331 transitions. [2022-01-17 23:22:43,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:22:43,478 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:43,478 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:43,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-01-17 23:22:43,479 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:43,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:43,479 INFO L85 PathProgramCache]: Analyzing trace with hash -1211899603, now seen corresponding path program 5 times [2022-01-17 23:22:43,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:43,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143308104] [2022-01-17 23:22:43,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:43,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:43,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:44,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:44,329 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:44,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143308104] [2022-01-17 23:22:44,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143308104] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:44,330 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:44,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:22:44,330 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802744968] [2022-01-17 23:22:44,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:44,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:22:44,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:44,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:22:44,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=731, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:22:44,331 INFO L87 Difference]: Start difference. First operand 2833 states and 7331 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:46,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:46,391 INFO L93 Difference]: Finished difference Result 3083 states and 7817 transitions. [2022-01-17 23:22:46,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-17 23:22:46,392 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:22:46,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:46,396 INFO L225 Difference]: With dead ends: 3083 [2022-01-17 23:22:46,396 INFO L226 Difference]: Without dead ends: 2934 [2022-01-17 23:22:46,397 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 600 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=544, Invalid=2536, Unknown=0, NotChecked=0, Total=3080 [2022-01-17 23:22:46,397 INFO L933 BasicCegarLoop]: 173 mSDtfsCounter, 953 mSDsluCounter, 2546 mSDsCounter, 0 mSdLazyCounter, 1533 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 953 SdHoareTripleChecker+Valid, 2603 SdHoareTripleChecker+Invalid, 1627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:46,397 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [953 Valid, 2603 Invalid, 1627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 1533 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:22:46,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2934 states. [2022-01-17 23:22:46,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2934 to 2835. [2022-01-17 23:22:46,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2835 states, 2834 states have (on average 2.587861679604799) internal successors, (7334), 2834 states have internal predecessors, (7334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:46,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2835 states to 2835 states and 7334 transitions. [2022-01-17 23:22:46,423 INFO L78 Accepts]: Start accepts. Automaton has 2835 states and 7334 transitions. Word has length 137 [2022-01-17 23:22:46,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:46,423 INFO L470 AbstractCegarLoop]: Abstraction has 2835 states and 7334 transitions. [2022-01-17 23:22:46,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:46,423 INFO L276 IsEmpty]: Start isEmpty. Operand 2835 states and 7334 transitions. [2022-01-17 23:22:46,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:22:46,426 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:46,426 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:46,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-01-17 23:22:46,426 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:46,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:46,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1999546615, now seen corresponding path program 6 times [2022-01-17 23:22:46,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:46,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636164508] [2022-01-17 23:22:46,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:46,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:46,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:47,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:47,196 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:47,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636164508] [2022-01-17 23:22:47,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636164508] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:47,196 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:47,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-17 23:22:47,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718807137] [2022-01-17 23:22:47,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:47,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-17 23:22:47,202 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:47,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-17 23:22:47,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2022-01-17 23:22:47,202 INFO L87 Difference]: Start difference. First operand 2835 states and 7334 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:48,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:48,886 INFO L93 Difference]: Finished difference Result 3009 states and 7661 transitions. [2022-01-17 23:22:48,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:22:48,886 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:22:48,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:48,889 INFO L225 Difference]: With dead ends: 3009 [2022-01-17 23:22:48,889 INFO L226 Difference]: Without dead ends: 2847 [2022-01-17 23:22:48,890 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 498 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=520, Invalid=2342, Unknown=0, NotChecked=0, Total=2862 [2022-01-17 23:22:48,890 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 1156 mSDsluCounter, 2525 mSDsCounter, 0 mSdLazyCounter, 1535 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1156 SdHoareTripleChecker+Valid, 2590 SdHoareTripleChecker+Invalid, 1633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:48,890 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1156 Valid, 2590 Invalid, 1633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 1535 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:22:48,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2847 states. [2022-01-17 23:22:48,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2847 to 2809. [2022-01-17 23:22:48,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2809 states, 2808 states have (on average 2.5883190883190883) internal successors, (7268), 2808 states have internal predecessors, (7268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:48,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2809 states to 2809 states and 7268 transitions. [2022-01-17 23:22:48,915 INFO L78 Accepts]: Start accepts. Automaton has 2809 states and 7268 transitions. Word has length 137 [2022-01-17 23:22:48,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:48,916 INFO L470 AbstractCegarLoop]: Abstraction has 2809 states and 7268 transitions. [2022-01-17 23:22:48,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:48,916 INFO L276 IsEmpty]: Start isEmpty. Operand 2809 states and 7268 transitions. [2022-01-17 23:22:48,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:22:48,918 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:48,918 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:48,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-01-17 23:22:48,919 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:48,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:48,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1814133711, now seen corresponding path program 7 times [2022-01-17 23:22:48,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:48,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864828711] [2022-01-17 23:22:48,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:48,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:48,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:49,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:49,555 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:49,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864828711] [2022-01-17 23:22:49,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864828711] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:49,555 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:49,555 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-17 23:22:49,555 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353834242] [2022-01-17 23:22:49,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:49,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-17 23:22:49,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:49,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-17 23:22:49,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2022-01-17 23:22:49,555 INFO L87 Difference]: Start difference. First operand 2809 states and 7268 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:51,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:51,518 INFO L93 Difference]: Finished difference Result 3237 states and 8191 transitions. [2022-01-17 23:22:51,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:22:51,519 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:22:51,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:51,522 INFO L225 Difference]: With dead ends: 3237 [2022-01-17 23:22:51,523 INFO L226 Difference]: Without dead ends: 3088 [2022-01-17 23:22:51,523 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 505 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=508, Invalid=2354, Unknown=0, NotChecked=0, Total=2862 [2022-01-17 23:22:51,523 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 1238 mSDsluCounter, 2329 mSDsCounter, 0 mSdLazyCounter, 1415 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1238 SdHoareTripleChecker+Valid, 2408 SdHoareTripleChecker+Invalid, 1525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 1415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:51,523 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1238 Valid, 2408 Invalid, 1525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 1415 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:22:51,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3088 states. [2022-01-17 23:22:51,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3088 to 2875. [2022-01-17 23:22:51,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2875 states, 2874 states have (on average 2.5953375086986776) internal successors, (7459), 2874 states have internal predecessors, (7459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:51,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2875 states to 2875 states and 7459 transitions. [2022-01-17 23:22:51,548 INFO L78 Accepts]: Start accepts. Automaton has 2875 states and 7459 transitions. Word has length 137 [2022-01-17 23:22:51,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:51,548 INFO L470 AbstractCegarLoop]: Abstraction has 2875 states and 7459 transitions. [2022-01-17 23:22:51,548 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:51,549 INFO L276 IsEmpty]: Start isEmpty. Operand 2875 states and 7459 transitions. [2022-01-17 23:22:51,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:22:51,551 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:51,551 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:51,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-01-17 23:22:51,551 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:51,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:51,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1026486699, now seen corresponding path program 8 times [2022-01-17 23:22:51,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:51,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455770099] [2022-01-17 23:22:51,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:51,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:51,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:52,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:52,302 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:52,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455770099] [2022-01-17 23:22:52,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455770099] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:52,302 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:52,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:22:52,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24105619] [2022-01-17 23:22:52,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:52,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:22:52,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:52,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:22:52,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=730, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:22:52,303 INFO L87 Difference]: Start difference. First operand 2875 states and 7459 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:53,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:53,956 INFO L93 Difference]: Finished difference Result 3167 states and 8041 transitions. [2022-01-17 23:22:53,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:22:53,957 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:22:53,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:53,961 INFO L225 Difference]: With dead ends: 3167 [2022-01-17 23:22:53,961 INFO L226 Difference]: Without dead ends: 3029 [2022-01-17 23:22:53,961 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 571 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=533, Invalid=2437, Unknown=0, NotChecked=0, Total=2970 [2022-01-17 23:22:53,961 INFO L933 BasicCegarLoop]: 175 mSDtfsCounter, 913 mSDsluCounter, 2499 mSDsCounter, 0 mSdLazyCounter, 1539 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 913 SdHoareTripleChecker+Valid, 2583 SdHoareTripleChecker+Invalid, 1625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:53,961 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [913 Valid, 2583 Invalid, 1625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 1539 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:22:53,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3029 states. [2022-01-17 23:22:53,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3029 to 2873. [2022-01-17 23:22:53,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2873 states, 2872 states have (on average 2.5954038997214486) internal successors, (7454), 2872 states have internal predecessors, (7454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:53,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2873 states to 2873 states and 7454 transitions. [2022-01-17 23:22:53,986 INFO L78 Accepts]: Start accepts. Automaton has 2873 states and 7454 transitions. Word has length 137 [2022-01-17 23:22:53,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:53,987 INFO L470 AbstractCegarLoop]: Abstraction has 2873 states and 7454 transitions. [2022-01-17 23:22:53,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:53,987 INFO L276 IsEmpty]: Start isEmpty. Operand 2873 states and 7454 transitions. [2022-01-17 23:22:53,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:22:53,989 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:53,989 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:53,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-01-17 23:22:53,989 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:53,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:53,990 INFO L85 PathProgramCache]: Analyzing trace with hash -2121327127, now seen corresponding path program 9 times [2022-01-17 23:22:53,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:53,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30487716] [2022-01-17 23:22:53,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:53,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:54,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:54,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:54,723 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:54,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30487716] [2022-01-17 23:22:54,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30487716] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:54,723 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:54,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-17 23:22:54,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31252163] [2022-01-17 23:22:54,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:54,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-17 23:22:54,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:54,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-17 23:22:54,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=794, Unknown=0, NotChecked=0, Total=870 [2022-01-17 23:22:54,724 INFO L87 Difference]: Start difference. First operand 2873 states and 7454 transitions. Second operand has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:56,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:56,646 INFO L93 Difference]: Finished difference Result 3179 states and 8059 transitions. [2022-01-17 23:22:56,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:22:56,646 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:22:56,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:56,650 INFO L225 Difference]: With dead ends: 3179 [2022-01-17 23:22:56,650 INFO L226 Difference]: Without dead ends: 3031 [2022-01-17 23:22:56,650 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 523 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=522, Invalid=2448, Unknown=0, NotChecked=0, Total=2970 [2022-01-17 23:22:56,650 INFO L933 BasicCegarLoop]: 175 mSDtfsCounter, 1025 mSDsluCounter, 2505 mSDsCounter, 0 mSdLazyCounter, 1607 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1025 SdHoareTripleChecker+Valid, 2583 SdHoareTripleChecker+Invalid, 1708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 1607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:56,650 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1025 Valid, 2583 Invalid, 1708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 1607 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:22:56,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3031 states. [2022-01-17 23:22:56,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3031 to 2865. [2022-01-17 23:22:56,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2865 states, 2864 states have (on average 2.5953212290502794) internal successors, (7433), 2864 states have internal predecessors, (7433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:56,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2865 states to 2865 states and 7433 transitions. [2022-01-17 23:22:56,676 INFO L78 Accepts]: Start accepts. Automaton has 2865 states and 7433 transitions. Word has length 137 [2022-01-17 23:22:56,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:56,676 INFO L470 AbstractCegarLoop]: Abstraction has 2865 states and 7433 transitions. [2022-01-17 23:22:56,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:56,676 INFO L276 IsEmpty]: Start isEmpty. Operand 2865 states and 7433 transitions. [2022-01-17 23:22:56,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:22:56,678 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:56,678 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:56,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-01-17 23:22:56,678 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:56,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:56,679 INFO L85 PathProgramCache]: Analyzing trace with hash 2009858063, now seen corresponding path program 10 times [2022-01-17 23:22:56,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:56,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143000687] [2022-01-17 23:22:56,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:56,679 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:56,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:57,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:57,476 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:57,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143000687] [2022-01-17 23:22:57,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143000687] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:57,477 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:57,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:22:57,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344514504] [2022-01-17 23:22:57,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:57,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:22:57,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:57,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:22:57,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=726, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:22:57,477 INFO L87 Difference]: Start difference. First operand 2865 states and 7433 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:59,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:59,512 INFO L93 Difference]: Finished difference Result 3599 states and 9134 transitions. [2022-01-17 23:22:59,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-17 23:22:59,512 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:22:59,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:59,516 INFO L225 Difference]: With dead ends: 3599 [2022-01-17 23:22:59,516 INFO L226 Difference]: Without dead ends: 3450 [2022-01-17 23:22:59,516 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 606 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=544, Invalid=2536, Unknown=0, NotChecked=0, Total=3080 [2022-01-17 23:22:59,517 INFO L933 BasicCegarLoop]: 206 mSDtfsCounter, 1285 mSDsluCounter, 2482 mSDsCounter, 0 mSdLazyCounter, 1400 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1285 SdHoareTripleChecker+Valid, 2601 SdHoareTripleChecker+Invalid, 1520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 1400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:59,517 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1285 Valid, 2601 Invalid, 1520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 1400 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:22:59,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3450 states. [2022-01-17 23:22:59,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3450 to 2949. [2022-01-17 23:22:59,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2949 states, 2948 states have (on average 2.6004070556309364) internal successors, (7666), 2948 states have internal predecessors, (7666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:59,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2949 states to 2949 states and 7666 transitions. [2022-01-17 23:22:59,544 INFO L78 Accepts]: Start accepts. Automaton has 2949 states and 7666 transitions. Word has length 137 [2022-01-17 23:22:59,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:59,544 INFO L470 AbstractCegarLoop]: Abstraction has 2949 states and 7666 transitions. [2022-01-17 23:22:59,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:59,544 INFO L276 IsEmpty]: Start isEmpty. Operand 2949 states and 7666 transitions. [2022-01-17 23:22:59,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:22:59,546 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:59,547 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:59,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-01-17 23:22:59,547 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:59,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:59,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1228084955, now seen corresponding path program 11 times [2022-01-17 23:22:59,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:59,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046684536] [2022-01-17 23:22:59,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:59,547 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:59,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:00,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:00,438 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:00,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046684536] [2022-01-17 23:23:00,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046684536] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:00,438 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:00,438 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-17 23:23:00,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201462708] [2022-01-17 23:23:00,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:00,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-17 23:23:00,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:00,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-17 23:23:00,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=836, Unknown=0, NotChecked=0, Total=930 [2022-01-17 23:23:00,439 INFO L87 Difference]: Start difference. First operand 2949 states and 7666 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:02,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:02,860 INFO L93 Difference]: Finished difference Result 3813 states and 9700 transitions. [2022-01-17 23:23:02,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-17 23:23:02,860 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:23:02,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:02,865 INFO L225 Difference]: With dead ends: 3813 [2022-01-17 23:23:02,865 INFO L226 Difference]: Without dead ends: 3679 [2022-01-17 23:23:02,866 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 652 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=566, Invalid=2740, Unknown=0, NotChecked=0, Total=3306 [2022-01-17 23:23:02,866 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 1135 mSDsluCounter, 3219 mSDsCounter, 0 mSdLazyCounter, 1767 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1135 SdHoareTripleChecker+Valid, 3312 SdHoareTripleChecker+Invalid, 1882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 1767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:02,866 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1135 Valid, 3312 Invalid, 1882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 1767 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-17 23:23:02,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3679 states. [2022-01-17 23:23:02,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3679 to 3145. [2022-01-17 23:23:02,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3145 states, 3144 states have (on average 2.594147582697201) internal successors, (8156), 3144 states have internal predecessors, (8156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:02,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3145 states to 3145 states and 8156 transitions. [2022-01-17 23:23:02,896 INFO L78 Accepts]: Start accepts. Automaton has 3145 states and 8156 transitions. Word has length 137 [2022-01-17 23:23:02,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:02,896 INFO L470 AbstractCegarLoop]: Abstraction has 3145 states and 8156 transitions. [2022-01-17 23:23:02,896 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:02,896 INFO L276 IsEmpty]: Start isEmpty. Operand 3145 states and 8156 transitions. [2022-01-17 23:23:02,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:23:02,899 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:02,899 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:23:02,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-01-17 23:23:02,900 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:23:02,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:02,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1342087397, now seen corresponding path program 12 times [2022-01-17 23:23:02,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:02,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167683477] [2022-01-17 23:23:02,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:02,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:02,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:03,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:03,866 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:03,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167683477] [2022-01-17 23:23:03,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167683477] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:03,867 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:03,867 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-17 23:23:03,867 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685277218] [2022-01-17 23:23:03,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:03,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-17 23:23:03,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:03,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-17 23:23:03,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1008, Unknown=0, NotChecked=0, Total=1122 [2022-01-17 23:23:03,868 INFO L87 Difference]: Start difference. First operand 3145 states and 8156 transitions. Second operand has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:06,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:06,650 INFO L93 Difference]: Finished difference Result 4077 states and 10290 transitions. [2022-01-17 23:23:06,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-17 23:23:06,650 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:23:06,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:06,654 INFO L225 Difference]: With dead ends: 4077 [2022-01-17 23:23:06,655 INFO L226 Difference]: Without dead ends: 3424 [2022-01-17 23:23:06,655 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1026 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=782, Invalid=3910, Unknown=0, NotChecked=0, Total=4692 [2022-01-17 23:23:06,656 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 1805 mSDsluCounter, 4069 mSDsCounter, 0 mSdLazyCounter, 1987 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1805 SdHoareTripleChecker+Valid, 4166 SdHoareTripleChecker+Invalid, 2171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 1987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:06,656 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1805 Valid, 4166 Invalid, 2171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 1987 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-17 23:23:06,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3424 states. [2022-01-17 23:23:06,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3424 to 2879. [2022-01-17 23:23:06,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2879 states, 2878 states have (on average 2.592425295343989) internal successors, (7461), 2878 states have internal predecessors, (7461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:06,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2879 states to 2879 states and 7461 transitions. [2022-01-17 23:23:06,684 INFO L78 Accepts]: Start accepts. Automaton has 2879 states and 7461 transitions. Word has length 137 [2022-01-17 23:23:06,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:06,684 INFO L470 AbstractCegarLoop]: Abstraction has 2879 states and 7461 transitions. [2022-01-17 23:23:06,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:06,684 INFO L276 IsEmpty]: Start isEmpty. Operand 2879 states and 7461 transitions. [2022-01-17 23:23:06,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:23:06,687 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:06,687 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:23:06,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-01-17 23:23:06,687 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:23:06,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:06,687 INFO L85 PathProgramCache]: Analyzing trace with hash 791748333, now seen corresponding path program 13 times [2022-01-17 23:23:06,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:06,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691133923] [2022-01-17 23:23:06,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:06,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:06,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:07,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:07,473 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:07,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691133923] [2022-01-17 23:23:07,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691133923] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:07,474 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:07,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2022-01-17 23:23:07,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396315950] [2022-01-17 23:23:07,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:07,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-01-17 23:23:07,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:07,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-01-17 23:23:07,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=891, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:23:07,475 INFO L87 Difference]: Start difference. First operand 2879 states and 7461 transitions. Second operand has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:09,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:09,933 INFO L93 Difference]: Finished difference Result 3265 states and 8243 transitions. [2022-01-17 23:23:09,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-17 23:23:09,933 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:23:09,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:09,937 INFO L225 Difference]: With dead ends: 3265 [2022-01-17 23:23:09,937 INFO L226 Difference]: Without dead ends: 3116 [2022-01-17 23:23:09,938 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 935 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=752, Invalid=3538, Unknown=0, NotChecked=0, Total=4290 [2022-01-17 23:23:09,938 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 1265 mSDsluCounter, 2733 mSDsCounter, 0 mSdLazyCounter, 1643 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1265 SdHoareTripleChecker+Valid, 2806 SdHoareTripleChecker+Invalid, 1757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 1643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:09,938 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1265 Valid, 2806 Invalid, 1757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 1643 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:23:09,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-01-17 23:23:09,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 2881. [2022-01-17 23:23:09,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2881 states, 2880 states have (on average 2.591666666666667) internal successors, (7464), 2880 states have internal predecessors, (7464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:09,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2881 states to 2881 states and 7464 transitions. [2022-01-17 23:23:09,964 INFO L78 Accepts]: Start accepts. Automaton has 2881 states and 7464 transitions. Word has length 137 [2022-01-17 23:23:09,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:09,964 INFO L470 AbstractCegarLoop]: Abstraction has 2881 states and 7464 transitions. [2022-01-17 23:23:09,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:09,964 INFO L276 IsEmpty]: Start isEmpty. Operand 2881 states and 7464 transitions. [2022-01-17 23:23:09,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:23:09,967 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:09,967 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:23:09,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-01-17 23:23:09,971 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:23:09,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:09,971 INFO L85 PathProgramCache]: Analyzing trace with hash -378741397, now seen corresponding path program 14 times [2022-01-17 23:23:09,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:09,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052357709] [2022-01-17 23:23:09,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:09,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:10,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:10,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:10,790 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:10,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052357709] [2022-01-17 23:23:10,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052357709] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:10,790 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:10,790 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:23:10,790 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530693719] [2022-01-17 23:23:10,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:10,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:23:10,791 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:10,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:23:10,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=729, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:23:10,791 INFO L87 Difference]: Start difference. First operand 2881 states and 7464 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:13,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:13,044 INFO L93 Difference]: Finished difference Result 3193 states and 8090 transitions. [2022-01-17 23:23:13,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-17 23:23:13,045 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:23:13,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:13,048 INFO L225 Difference]: With dead ends: 3193 [2022-01-17 23:23:13,048 INFO L226 Difference]: Without dead ends: 3055 [2022-01-17 23:23:13,049 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 603 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=558, Invalid=2522, Unknown=0, NotChecked=0, Total=3080 [2022-01-17 23:23:13,049 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 998 mSDsluCounter, 2366 mSDsCounter, 0 mSdLazyCounter, 1354 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 998 SdHoareTripleChecker+Valid, 2464 SdHoareTripleChecker+Invalid, 1449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:13,050 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [998 Valid, 2464 Invalid, 1449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 1354 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:23:13,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3055 states. [2022-01-17 23:23:13,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3055 to 2879. [2022-01-17 23:23:13,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2879 states, 2878 states have (on average 2.592077831827658) internal successors, (7460), 2878 states have internal predecessors, (7460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:13,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2879 states to 2879 states and 7460 transitions. [2022-01-17 23:23:13,075 INFO L78 Accepts]: Start accepts. Automaton has 2879 states and 7460 transitions. Word has length 137 [2022-01-17 23:23:13,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:13,075 INFO L470 AbstractCegarLoop]: Abstraction has 2879 states and 7460 transitions. [2022-01-17 23:23:13,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:13,075 INFO L276 IsEmpty]: Start isEmpty. Operand 2879 states and 7460 transitions. [2022-01-17 23:23:13,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:23:13,077 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:13,077 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:23:13,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-01-17 23:23:13,078 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:23:13,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:13,078 INFO L85 PathProgramCache]: Analyzing trace with hash 391236999, now seen corresponding path program 15 times [2022-01-17 23:23:13,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:13,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270039391] [2022-01-17 23:23:13,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:13,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:13,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:13,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:13,968 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:13,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270039391] [2022-01-17 23:23:13,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270039391] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:13,969 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:13,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-17 23:23:13,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228097782] [2022-01-17 23:23:13,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:13,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-17 23:23:13,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:13,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-17 23:23:13,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=835, Unknown=0, NotChecked=0, Total=930 [2022-01-17 23:23:13,969 INFO L87 Difference]: Start difference. First operand 2879 states and 7460 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:16,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:16,102 INFO L93 Difference]: Finished difference Result 3491 states and 8836 transitions. [2022-01-17 23:23:16,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-17 23:23:16,102 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:23:16,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:16,107 INFO L225 Difference]: With dead ends: 3491 [2022-01-17 23:23:16,107 INFO L226 Difference]: Without dead ends: 3357 [2022-01-17 23:23:16,107 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 672 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=593, Invalid=2829, Unknown=0, NotChecked=0, Total=3422 [2022-01-17 23:23:16,107 INFO L933 BasicCegarLoop]: 212 mSDtfsCounter, 1266 mSDsluCounter, 3184 mSDsCounter, 0 mSdLazyCounter, 1832 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1266 SdHoareTripleChecker+Valid, 3291 SdHoareTripleChecker+Invalid, 1954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 1832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:16,107 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1266 Valid, 3291 Invalid, 1954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 1832 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:23:16,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3357 states. [2022-01-17 23:23:16,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3357 to 3089. [2022-01-17 23:23:16,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3089 states, 3088 states have (on average 2.5835492227979273) internal successors, (7978), 3088 states have internal predecessors, (7978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:16,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3089 states to 3089 states and 7978 transitions. [2022-01-17 23:23:16,135 INFO L78 Accepts]: Start accepts. Automaton has 3089 states and 7978 transitions. Word has length 137 [2022-01-17 23:23:16,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:16,135 INFO L470 AbstractCegarLoop]: Abstraction has 3089 states and 7978 transitions. [2022-01-17 23:23:16,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:16,136 INFO L276 IsEmpty]: Start isEmpty. Operand 3089 states and 7978 transitions. [2022-01-17 23:23:16,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:23:16,138 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:16,138 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:23:16,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-01-17 23:23:16,139 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:23:16,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:16,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1783247915, now seen corresponding path program 16 times [2022-01-17 23:23:16,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:16,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902222681] [2022-01-17 23:23:16,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:16,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:16,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:17,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:17,154 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:17,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902222681] [2022-01-17 23:23:17,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902222681] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:17,154 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:17,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-17 23:23:17,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017821352] [2022-01-17 23:23:17,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:17,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-17 23:23:17,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:17,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-17 23:23:17,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1008, Unknown=0, NotChecked=0, Total=1122 [2022-01-17 23:23:17,155 INFO L87 Difference]: Start difference. First operand 3089 states and 7978 transitions. Second operand has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:19,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:19,833 INFO L93 Difference]: Finished difference Result 3755 states and 9426 transitions. [2022-01-17 23:23:19,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-01-17 23:23:19,833 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:23:19,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:19,837 INFO L225 Difference]: With dead ends: 3755 [2022-01-17 23:23:19,837 INFO L226 Difference]: Without dead ends: 3172 [2022-01-17 23:23:19,837 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1175 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=856, Invalid=4400, Unknown=0, NotChecked=0, Total=5256 [2022-01-17 23:23:19,838 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 1984 mSDsluCounter, 3269 mSDsCounter, 0 mSdLazyCounter, 1656 mSolverCounterSat, 196 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1984 SdHoareTripleChecker+Valid, 3395 SdHoareTripleChecker+Invalid, 1852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 196 IncrementalHoareTripleChecker+Valid, 1656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:19,838 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1984 Valid, 3395 Invalid, 1852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [196 Valid, 1656 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:23:19,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3172 states. [2022-01-17 23:23:19,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3172 to 2893. [2022-01-17 23:23:19,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2893 states, 2892 states have (on average 2.5843706777316737) internal successors, (7474), 2892 states have internal predecessors, (7474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:19,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2893 states to 2893 states and 7474 transitions. [2022-01-17 23:23:19,863 INFO L78 Accepts]: Start accepts. Automaton has 2893 states and 7474 transitions. Word has length 137 [2022-01-17 23:23:19,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:19,863 INFO L470 AbstractCegarLoop]: Abstraction has 2893 states and 7474 transitions. [2022-01-17 23:23:19,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:19,863 INFO L276 IsEmpty]: Start isEmpty. Operand 2893 states and 7474 transitions. [2022-01-17 23:23:19,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:23:19,866 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:19,866 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:23:19,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-01-17 23:23:19,866 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:23:19,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:19,866 INFO L85 PathProgramCache]: Analyzing trace with hash 629037801, now seen corresponding path program 17 times [2022-01-17 23:23:19,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:19,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019579008] [2022-01-17 23:23:19,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:19,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:19,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:20,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:20,721 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:20,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019579008] [2022-01-17 23:23:20,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019579008] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:20,721 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:20,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-17 23:23:20,721 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648280567] [2022-01-17 23:23:20,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:20,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-17 23:23:20,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:20,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-17 23:23:20,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=835, Unknown=0, NotChecked=0, Total=930 [2022-01-17 23:23:20,722 INFO L87 Difference]: Start difference. First operand 2893 states and 7474 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:22,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:22,466 INFO L93 Difference]: Finished difference Result 3205 states and 8100 transitions. [2022-01-17 23:23:22,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-17 23:23:22,466 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:23:22,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:22,478 INFO L225 Difference]: With dead ends: 3205 [2022-01-17 23:23:22,478 INFO L226 Difference]: Without dead ends: 3041 [2022-01-17 23:23:22,479 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 639 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=587, Invalid=2719, Unknown=0, NotChecked=0, Total=3306 [2022-01-17 23:23:22,479 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 1088 mSDsluCounter, 2431 mSDsCounter, 0 mSdLazyCounter, 1388 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1088 SdHoareTripleChecker+Valid, 2542 SdHoareTripleChecker+Invalid, 1493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 1388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:22,479 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1088 Valid, 2542 Invalid, 1493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 1388 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:23:22,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3041 states. [2022-01-17 23:23:22,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3041 to 2865. [2022-01-17 23:23:22,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2865 states, 2864 states have (on average 2.5904329608938546) internal successors, (7419), 2864 states have internal predecessors, (7419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:22,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2865 states to 2865 states and 7419 transitions. [2022-01-17 23:23:22,506 INFO L78 Accepts]: Start accepts. Automaton has 2865 states and 7419 transitions. Word has length 137 [2022-01-17 23:23:22,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:22,506 INFO L470 AbstractCegarLoop]: Abstraction has 2865 states and 7419 transitions. [2022-01-17 23:23:22,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:22,507 INFO L276 IsEmpty]: Start isEmpty. Operand 2865 states and 7419 transitions. [2022-01-17 23:23:22,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:23:22,509 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:22,509 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:23:22,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-01-17 23:23:22,510 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:23:22,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:22,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1000873403, now seen corresponding path program 18 times [2022-01-17 23:23:22,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:22,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260396689] [2022-01-17 23:23:22,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:22,510 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:22,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:23,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:23,351 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:23,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260396689] [2022-01-17 23:23:23,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260396689] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:23,351 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:23,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-17 23:23:23,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888034432] [2022-01-17 23:23:23,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:23,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-17 23:23:23,351 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:23,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-17 23:23:23,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1008, Unknown=0, NotChecked=0, Total=1122 [2022-01-17 23:23:23,353 INFO L87 Difference]: Start difference. First operand 2865 states and 7419 transitions. Second operand has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:26,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:26,073 INFO L93 Difference]: Finished difference Result 3471 states and 8782 transitions. [2022-01-17 23:23:26,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-17 23:23:26,074 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:23:26,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:26,077 INFO L225 Difference]: With dead ends: 3471 [2022-01-17 23:23:26,077 INFO L226 Difference]: Without dead ends: 3337 [2022-01-17 23:23:26,078 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 873 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=699, Invalid=3461, Unknown=0, NotChecked=0, Total=4160 [2022-01-17 23:23:26,078 INFO L933 BasicCegarLoop]: 212 mSDtfsCounter, 1478 mSDsluCounter, 3402 mSDsCounter, 0 mSdLazyCounter, 1936 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1478 SdHoareTripleChecker+Valid, 3498 SdHoareTripleChecker+Invalid, 2076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 1936 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:26,078 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1478 Valid, 3498 Invalid, 2076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 1936 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-17 23:23:26,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3337 states. [2022-01-17 23:23:26,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3337 to 3131. [2022-01-17 23:23:26,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3131 states, 3130 states have (on average 2.576038338658147) internal successors, (8063), 3130 states have internal predecessors, (8063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:26,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3131 states to 3131 states and 8063 transitions. [2022-01-17 23:23:26,105 INFO L78 Accepts]: Start accepts. Automaton has 3131 states and 8063 transitions. Word has length 137 [2022-01-17 23:23:26,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:26,105 INFO L470 AbstractCegarLoop]: Abstraction has 3131 states and 8063 transitions. [2022-01-17 23:23:26,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:26,106 INFO L276 IsEmpty]: Start isEmpty. Operand 3131 states and 8063 transitions. [2022-01-17 23:23:26,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:23:26,108 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:26,109 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:23:26,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-01-17 23:23:26,109 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:23:26,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:26,109 INFO L85 PathProgramCache]: Analyzing trace with hash 391137513, now seen corresponding path program 19 times [2022-01-17 23:23:26,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:26,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249452385] [2022-01-17 23:23:26,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:26,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:26,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:26,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:26,862 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:26,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249452385] [2022-01-17 23:23:26,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249452385] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:26,862 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:26,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-17 23:23:26,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890444081] [2022-01-17 23:23:26,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:26,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-17 23:23:26,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:26,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-17 23:23:26,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1008, Unknown=0, NotChecked=0, Total=1122 [2022-01-17 23:23:26,863 INFO L87 Difference]: Start difference. First operand 3131 states and 8063 transitions. Second operand has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:29,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:29,747 INFO L93 Difference]: Finished difference Result 3735 states and 9372 transitions. [2022-01-17 23:23:29,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-17 23:23:29,748 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:23:29,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:29,752 INFO L225 Difference]: With dead ends: 3735 [2022-01-17 23:23:29,752 INFO L226 Difference]: Without dead ends: 3152 [2022-01-17 23:23:29,752 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1114 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=853, Invalid=4259, Unknown=0, NotChecked=0, Total=5112 [2022-01-17 23:23:29,753 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 1735 mSDsluCounter, 3828 mSDsCounter, 0 mSdLazyCounter, 1993 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1735 SdHoareTripleChecker+Valid, 3935 SdHoareTripleChecker+Invalid, 2175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 1993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:29,753 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1735 Valid, 3935 Invalid, 2175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 1993 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-17 23:23:29,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3152 states. [2022-01-17 23:23:29,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3152 to 2935. [2022-01-17 23:23:29,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2935 states, 2934 states have (on average 2.576346284935242) internal successors, (7559), 2934 states have internal predecessors, (7559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:29,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2935 states to 2935 states and 7559 transitions. [2022-01-17 23:23:29,778 INFO L78 Accepts]: Start accepts. Automaton has 2935 states and 7559 transitions. Word has length 137 [2022-01-17 23:23:29,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:29,778 INFO L470 AbstractCegarLoop]: Abstraction has 2935 states and 7559 transitions. [2022-01-17 23:23:29,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:29,779 INFO L276 IsEmpty]: Start isEmpty. Operand 2935 states and 7559 transitions. [2022-01-17 23:23:29,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:23:29,781 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:29,781 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:23:29,781 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-01-17 23:23:29,781 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:23:29,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:29,781 INFO L85 PathProgramCache]: Analyzing trace with hash -763072601, now seen corresponding path program 20 times [2022-01-17 23:23:29,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:29,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928970262] [2022-01-17 23:23:29,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:29,782 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:29,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:30,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:30,516 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:30,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928970262] [2022-01-17 23:23:30,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928970262] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:30,517 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:30,517 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-17 23:23:30,517 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319047203] [2022-01-17 23:23:30,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:30,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-17 23:23:30,517 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:30,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-17 23:23:30,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=835, Unknown=0, NotChecked=0, Total=930 [2022-01-17 23:23:30,518 INFO L87 Difference]: Start difference. First operand 2935 states and 7559 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:32,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:32,698 INFO L93 Difference]: Finished difference Result 3187 states and 8049 transitions. [2022-01-17 23:23:32,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:23:32,698 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:23:32,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:32,702 INFO L225 Difference]: With dead ends: 3187 [2022-01-17 23:23:32,702 INFO L226 Difference]: Without dead ends: 3037 [2022-01-17 23:23:32,702 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 615 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=564, Invalid=2628, Unknown=0, NotChecked=0, Total=3192 [2022-01-17 23:23:32,702 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 1145 mSDsluCounter, 2474 mSDsCounter, 0 mSdLazyCounter, 1492 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1145 SdHoareTripleChecker+Valid, 2579 SdHoareTripleChecker+Invalid, 1604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 1492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:32,702 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1145 Valid, 2579 Invalid, 1604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 1492 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:23:32,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3037 states. [2022-01-17 23:23:32,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3037 to 2921. [2022-01-17 23:23:32,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2921 states, 2920 states have (on average 2.5791095890410958) internal successors, (7531), 2920 states have internal predecessors, (7531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:32,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2921 states to 2921 states and 7531 transitions. [2022-01-17 23:23:32,765 INFO L78 Accepts]: Start accepts. Automaton has 2921 states and 7531 transitions. Word has length 137 [2022-01-17 23:23:32,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:32,765 INFO L470 AbstractCegarLoop]: Abstraction has 2921 states and 7531 transitions. [2022-01-17 23:23:32,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:32,765 INFO L276 IsEmpty]: Start isEmpty. Operand 2921 states and 7531 transitions. [2022-01-17 23:23:32,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:23:32,768 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:32,768 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:23:32,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-01-17 23:23:32,768 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:23:32,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:32,769 INFO L85 PathProgramCache]: Analyzing trace with hash 13023233, now seen corresponding path program 21 times [2022-01-17 23:23:32,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:32,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427974800] [2022-01-17 23:23:32,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:32,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:32,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:33,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:33,480 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:33,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427974800] [2022-01-17 23:23:33,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427974800] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:33,480 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:33,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-17 23:23:33,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238015436] [2022-01-17 23:23:33,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:33,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-17 23:23:33,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:33,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-17 23:23:33,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=835, Unknown=0, NotChecked=0, Total=930 [2022-01-17 23:23:33,481 INFO L87 Difference]: Start difference. First operand 2921 states and 7531 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:35,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:35,123 INFO L93 Difference]: Finished difference Result 3187 states and 8044 transitions. [2022-01-17 23:23:35,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:23:35,123 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:23:35,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:35,126 INFO L225 Difference]: With dead ends: 3187 [2022-01-17 23:23:35,127 INFO L226 Difference]: Without dead ends: 2961 [2022-01-17 23:23:35,128 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 590 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=544, Invalid=2536, Unknown=0, NotChecked=0, Total=3080 [2022-01-17 23:23:35,128 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 1139 mSDsluCounter, 2770 mSDsCounter, 0 mSdLazyCounter, 1772 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1139 SdHoareTripleChecker+Valid, 2848 SdHoareTripleChecker+Invalid, 1879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 1772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:35,129 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1139 Valid, 2848 Invalid, 1879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 1772 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:23:35,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2961 states. [2022-01-17 23:23:35,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2961 to 2837. [2022-01-17 23:23:35,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2837 states, 2836 states have (on average 2.5677009873060648) internal successors, (7282), 2836 states have internal predecessors, (7282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:35,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2837 states to 2837 states and 7282 transitions. [2022-01-17 23:23:35,154 INFO L78 Accepts]: Start accepts. Automaton has 2837 states and 7282 transitions. Word has length 137 [2022-01-17 23:23:35,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:35,155 INFO L470 AbstractCegarLoop]: Abstraction has 2837 states and 7282 transitions. [2022-01-17 23:23:35,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:35,155 INFO L276 IsEmpty]: Start isEmpty. Operand 2837 states and 7282 transitions. [2022-01-17 23:23:35,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:23:35,157 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:35,157 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:23:35,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-01-17 23:23:35,157 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:23:35,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:35,158 INFO L85 PathProgramCache]: Analyzing trace with hash -302778101, now seen corresponding path program 22 times [2022-01-17 23:23:35,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:35,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044183619] [2022-01-17 23:23:35,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:35,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:35,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:36,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:36,053 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:36,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044183619] [2022-01-17 23:23:36,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044183619] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:36,053 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:36,053 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-17 23:23:36,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322330071] [2022-01-17 23:23:36,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:36,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-17 23:23:36,053 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:36,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-17 23:23:36,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2022-01-17 23:23:36,054 INFO L87 Difference]: Start difference. First operand 2837 states and 7282 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:38,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:38,027 INFO L93 Difference]: Finished difference Result 3105 states and 7813 transitions. [2022-01-17 23:23:38,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-17 23:23:38,027 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:23:38,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:38,031 INFO L225 Difference]: With dead ends: 3105 [2022-01-17 23:23:38,031 INFO L226 Difference]: Without dead ends: 2911 [2022-01-17 23:23:38,032 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 519 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=545, Invalid=2535, Unknown=0, NotChecked=0, Total=3080 [2022-01-17 23:23:38,032 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 1208 mSDsluCounter, 2810 mSDsCounter, 0 mSdLazyCounter, 1541 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1208 SdHoareTripleChecker+Valid, 2895 SdHoareTripleChecker+Invalid, 1671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 1541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:38,032 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1208 Valid, 2895 Invalid, 1671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 1541 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:23:38,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2911 states. [2022-01-17 23:23:38,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2911 to 2837. [2022-01-17 23:23:38,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2837 states, 2836 states have (on average 2.5624118476727786) internal successors, (7267), 2836 states have internal predecessors, (7267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:38,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2837 states to 2837 states and 7267 transitions. [2022-01-17 23:23:38,059 INFO L78 Accepts]: Start accepts. Automaton has 2837 states and 7267 transitions. Word has length 137 [2022-01-17 23:23:38,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:38,059 INFO L470 AbstractCegarLoop]: Abstraction has 2837 states and 7267 transitions. [2022-01-17 23:23:38,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:38,059 INFO L276 IsEmpty]: Start isEmpty. Operand 2837 states and 7267 transitions. [2022-01-17 23:23:38,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:23:38,062 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:38,062 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:23:38,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-01-17 23:23:38,062 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:23:38,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:38,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1980258935, now seen corresponding path program 23 times [2022-01-17 23:23:38,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:38,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111609775] [2022-01-17 23:23:38,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:38,062 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:38,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:38,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:38,611 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:38,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111609775] [2022-01-17 23:23:38,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111609775] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:38,611 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:38,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-17 23:23:38,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290325781] [2022-01-17 23:23:38,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:38,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-17 23:23:38,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:38,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-17 23:23:38,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2022-01-17 23:23:38,612 INFO L87 Difference]: Start difference. First operand 2837 states and 7267 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:40,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:40,603 INFO L93 Difference]: Finished difference Result 3403 states and 8590 transitions. [2022-01-17 23:23:40,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-17 23:23:40,604 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:23:40,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:40,608 INFO L225 Difference]: With dead ends: 3403 [2022-01-17 23:23:40,608 INFO L226 Difference]: Without dead ends: 3254 [2022-01-17 23:23:40,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 569 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=549, Invalid=2531, Unknown=0, NotChecked=0, Total=3080 [2022-01-17 23:23:40,609 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 1296 mSDsluCounter, 3042 mSDsCounter, 0 mSdLazyCounter, 1629 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1296 SdHoareTripleChecker+Valid, 3134 SdHoareTripleChecker+Invalid, 1772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 1629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:40,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1296 Valid, 3134 Invalid, 1772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 1629 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:23:40,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3254 states. [2022-01-17 23:23:40,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3254 to 2907. [2022-01-17 23:23:40,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2907 states, 2906 states have (on average 2.5664143152099106) internal successors, (7458), 2906 states have internal predecessors, (7458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:40,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2907 states to 2907 states and 7458 transitions. [2022-01-17 23:23:40,637 INFO L78 Accepts]: Start accepts. Automaton has 2907 states and 7458 transitions. Word has length 137 [2022-01-17 23:23:40,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:40,637 INFO L470 AbstractCegarLoop]: Abstraction has 2907 states and 7458 transitions. [2022-01-17 23:23:40,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:40,638 INFO L276 IsEmpty]: Start isEmpty. Operand 2907 states and 7458 transitions. [2022-01-17 23:23:40,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:23:40,640 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:40,640 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:23:40,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-01-17 23:23:40,640 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:23:40,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:40,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1082415053, now seen corresponding path program 24 times [2022-01-17 23:23:40,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:40,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320225327] [2022-01-17 23:23:40,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:40,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:40,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:41,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:41,276 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:41,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320225327] [2022-01-17 23:23:41,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320225327] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:41,276 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:41,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-17 23:23:41,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119485905] [2022-01-17 23:23:41,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:41,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-17 23:23:41,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:41,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-17 23:23:41,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=836, Unknown=0, NotChecked=0, Total=930 [2022-01-17 23:23:41,277 INFO L87 Difference]: Start difference. First operand 2907 states and 7458 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:43,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:43,329 INFO L93 Difference]: Finished difference Result 3340 states and 8454 transitions. [2022-01-17 23:23:43,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-17 23:23:43,329 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:23:43,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:43,333 INFO L225 Difference]: With dead ends: 3340 [2022-01-17 23:23:43,333 INFO L226 Difference]: Without dead ends: 3206 [2022-01-17 23:23:43,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 687 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=588, Invalid=2834, Unknown=0, NotChecked=0, Total=3422 [2022-01-17 23:23:43,334 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 1497 mSDsluCounter, 2924 mSDsCounter, 0 mSdLazyCounter, 1556 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1497 SdHoareTripleChecker+Valid, 3033 SdHoareTripleChecker+Invalid, 1719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 1556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:43,334 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1497 Valid, 3033 Invalid, 1719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 1556 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:23:43,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3206 states. [2022-01-17 23:23:43,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3206 to 3103. [2022-01-17 23:23:43,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3103 states, 3102 states have (on average 2.5622179239200515) internal successors, (7948), 3102 states have internal predecessors, (7948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:43,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3103 states to 3103 states and 7948 transitions. [2022-01-17 23:23:43,363 INFO L78 Accepts]: Start accepts. Automaton has 3103 states and 7948 transitions. Word has length 137 [2022-01-17 23:23:43,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:43,363 INFO L470 AbstractCegarLoop]: Abstraction has 3103 states and 7948 transitions. [2022-01-17 23:23:43,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:43,363 INFO L276 IsEmpty]: Start isEmpty. Operand 3103 states and 7948 transitions. [2022-01-17 23:23:43,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:23:43,366 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:43,366 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:23:43,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-01-17 23:23:43,366 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:23:43,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:43,367 INFO L85 PathProgramCache]: Analyzing trace with hash -642379891, now seen corresponding path program 25 times [2022-01-17 23:23:43,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:43,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278420269] [2022-01-17 23:23:43,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:43,367 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:43,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:44,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:44,428 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:44,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278420269] [2022-01-17 23:23:44,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278420269] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:44,428 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:44,428 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-17 23:23:44,428 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918624707] [2022-01-17 23:23:44,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:44,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-17 23:23:44,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:44,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-17 23:23:44,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1008, Unknown=0, NotChecked=0, Total=1122 [2022-01-17 23:23:44,429 INFO L87 Difference]: Start difference. First operand 3103 states and 7948 transitions. Second operand has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:47,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:47,514 INFO L93 Difference]: Finished difference Result 3604 states and 9044 transitions. [2022-01-17 23:23:47,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-17 23:23:47,514 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:23:47,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:47,517 INFO L225 Difference]: With dead ends: 3604 [2022-01-17 23:23:47,517 INFO L226 Difference]: Without dead ends: 2711 [2022-01-17 23:23:47,518 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1153 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=821, Invalid=4291, Unknown=0, NotChecked=0, Total=5112 [2022-01-17 23:23:47,518 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 1816 mSDsluCounter, 3641 mSDsCounter, 0 mSdLazyCounter, 1754 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1816 SdHoareTripleChecker+Valid, 3750 SdHoareTripleChecker+Invalid, 1964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 1754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:47,518 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1816 Valid, 3750 Invalid, 1964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [210 Valid, 1754 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-17 23:23:47,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2711 states. [2022-01-17 23:23:47,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2711 to 2597. [2022-01-17 23:23:47,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2597 states, 2596 states have (on average 2.5392912172573188) internal successors, (6592), 2596 states have internal predecessors, (6592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:47,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2597 states to 2597 states and 6592 transitions. [2022-01-17 23:23:47,540 INFO L78 Accepts]: Start accepts. Automaton has 2597 states and 6592 transitions. Word has length 137 [2022-01-17 23:23:47,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:47,540 INFO L470 AbstractCegarLoop]: Abstraction has 2597 states and 6592 transitions. [2022-01-17 23:23:47,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:47,540 INFO L276 IsEmpty]: Start isEmpty. Operand 2597 states and 6592 transitions. [2022-01-17 23:23:47,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:23:47,542 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:47,543 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:23:47,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-01-17 23:23:47,543 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:23:47,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:47,543 INFO L85 PathProgramCache]: Analyzing trace with hash 590525933, now seen corresponding path program 26 times [2022-01-17 23:23:47,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:47,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907715517] [2022-01-17 23:23:47,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:47,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:47,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:48,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:48,268 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:48,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907715517] [2022-01-17 23:23:48,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907715517] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:48,268 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:48,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-17 23:23:48,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597356131] [2022-01-17 23:23:48,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:48,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-17 23:23:48,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:48,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-17 23:23:48,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2022-01-17 23:23:48,269 INFO L87 Difference]: Start difference. First operand 2597 states and 6592 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:50,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:50,587 INFO L93 Difference]: Finished difference Result 2879 states and 7154 transitions. [2022-01-17 23:23:50,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-17 23:23:50,588 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:23:50,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:50,591 INFO L225 Difference]: With dead ends: 2879 [2022-01-17 23:23:50,591 INFO L226 Difference]: Without dead ends: 2685 [2022-01-17 23:23:50,591 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 585 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=571, Invalid=2621, Unknown=0, NotChecked=0, Total=3192 [2022-01-17 23:23:50,591 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 1140 mSDsluCounter, 2716 mSDsCounter, 0 mSdLazyCounter, 1497 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1140 SdHoareTripleChecker+Valid, 2791 SdHoareTripleChecker+Invalid, 1597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:50,592 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1140 Valid, 2791 Invalid, 1597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1497 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:23:50,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2685 states. [2022-01-17 23:23:50,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2685 to 2603. [2022-01-17 23:23:50,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2603 states, 2602 states have (on average 2.536894696387394) internal successors, (6601), 2602 states have internal predecessors, (6601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:50,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2603 states to 2603 states and 6601 transitions. [2022-01-17 23:23:50,614 INFO L78 Accepts]: Start accepts. Automaton has 2603 states and 6601 transitions. Word has length 137 [2022-01-17 23:23:50,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:50,614 INFO L470 AbstractCegarLoop]: Abstraction has 2603 states and 6601 transitions. [2022-01-17 23:23:50,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:50,614 INFO L276 IsEmpty]: Start isEmpty. Operand 2603 states and 6601 transitions. [2022-01-17 23:23:50,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:23:50,616 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:50,616 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:23:50,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-01-17 23:23:50,617 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:23:50,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:50,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1824297619, now seen corresponding path program 27 times [2022-01-17 23:23:50,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:50,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075387199] [2022-01-17 23:23:50,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:50,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:50,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:51,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:51,253 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:51,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075387199] [2022-01-17 23:23:51,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075387199] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:51,253 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:51,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:23:51,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416499911] [2022-01-17 23:23:51,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:51,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:23:51,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:51,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:23:51,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=730, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:23:51,254 INFO L87 Difference]: Start difference. First operand 2603 states and 6601 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:52,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:52,999 INFO L93 Difference]: Finished difference Result 2823 states and 7024 transitions. [2022-01-17 23:23:52,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-17 23:23:52,999 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:23:53,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:53,002 INFO L225 Difference]: With dead ends: 2823 [2022-01-17 23:23:53,002 INFO L226 Difference]: Without dead ends: 2674 [2022-01-17 23:23:53,002 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 628 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=572, Invalid=2620, Unknown=0, NotChecked=0, Total=3192 [2022-01-17 23:23:53,003 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 989 mSDsluCounter, 2576 mSDsCounter, 0 mSdLazyCounter, 1447 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 989 SdHoareTripleChecker+Valid, 2647 SdHoareTripleChecker+Invalid, 1546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:53,003 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [989 Valid, 2647 Invalid, 1546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1447 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:23:53,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2022-01-17 23:23:53,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2605. [2022-01-17 23:23:53,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2605 states, 2604 states have (on average 2.536098310291859) internal successors, (6604), 2604 states have internal predecessors, (6604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:53,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2605 states to 2605 states and 6604 transitions. [2022-01-17 23:23:53,024 INFO L78 Accepts]: Start accepts. Automaton has 2605 states and 6604 transitions. Word has length 137 [2022-01-17 23:23:53,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:53,024 INFO L470 AbstractCegarLoop]: Abstraction has 2605 states and 6604 transitions. [2022-01-17 23:23:53,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:53,024 INFO L276 IsEmpty]: Start isEmpty. Operand 2605 states and 6604 transitions. [2022-01-17 23:23:53,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:23:53,026 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:53,026 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:23:53,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-01-17 23:23:53,026 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:23:53,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:53,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1683022665, now seen corresponding path program 28 times [2022-01-17 23:23:53,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:53,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107609460] [2022-01-17 23:23:53,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:53,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:53,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:53,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:53,567 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:53,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107609460] [2022-01-17 23:23:53,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107609460] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:53,567 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:53,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-17 23:23:53,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324371517] [2022-01-17 23:23:53,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:53,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-17 23:23:53,567 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:53,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-17 23:23:53,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2022-01-17 23:23:53,568 INFO L87 Difference]: Start difference. First operand 2605 states and 6604 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:55,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:55,699 INFO L93 Difference]: Finished difference Result 2749 states and 6868 transitions. [2022-01-17 23:23:55,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-17 23:23:55,700 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:23:55,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:55,703 INFO L225 Difference]: With dead ends: 2749 [2022-01-17 23:23:55,703 INFO L226 Difference]: Without dead ends: 2605 [2022-01-17 23:23:55,703 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 522 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=544, Invalid=2426, Unknown=0, NotChecked=0, Total=2970 [2022-01-17 23:23:55,707 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 1053 mSDsluCounter, 2930 mSDsCounter, 0 mSdLazyCounter, 1648 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1053 SdHoareTripleChecker+Valid, 2995 SdHoareTripleChecker+Invalid, 1743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:55,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1053 Valid, 2995 Invalid, 1743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 1648 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:23:55,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2605 states. [2022-01-17 23:23:55,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2605 to 2597. [2022-01-17 23:23:55,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2597 states, 2596 states have (on average 2.538135593220339) internal successors, (6589), 2596 states have internal predecessors, (6589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:55,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2597 states to 2597 states and 6589 transitions. [2022-01-17 23:23:55,730 INFO L78 Accepts]: Start accepts. Automaton has 2597 states and 6589 transitions. Word has length 137 [2022-01-17 23:23:55,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:55,730 INFO L470 AbstractCegarLoop]: Abstraction has 2597 states and 6589 transitions. [2022-01-17 23:23:55,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:55,730 INFO L276 IsEmpty]: Start isEmpty. Operand 2597 states and 6589 transitions. [2022-01-17 23:23:55,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:23:55,732 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:55,732 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:23:55,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-01-17 23:23:55,732 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:23:55,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:55,733 INFO L85 PathProgramCache]: Analyzing trace with hash 521300717, now seen corresponding path program 29 times [2022-01-17 23:23:55,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:55,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423451905] [2022-01-17 23:23:55,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:55,733 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:55,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:56,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:56,360 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:56,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423451905] [2022-01-17 23:23:56,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423451905] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:56,360 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:56,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-17 23:23:56,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032138494] [2022-01-17 23:23:56,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:56,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-17 23:23:56,360 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:56,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-17 23:23:56,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2022-01-17 23:23:56,361 INFO L87 Difference]: Start difference. First operand 2597 states and 6589 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:58,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:58,173 INFO L93 Difference]: Finished difference Result 3199 states and 7998 transitions. [2022-01-17 23:23:58,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-17 23:23:58,174 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:23:58,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:58,177 INFO L225 Difference]: With dead ends: 3199 [2022-01-17 23:23:58,177 INFO L226 Difference]: Without dead ends: 3050 [2022-01-17 23:23:58,178 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 588 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=569, Invalid=2623, Unknown=0, NotChecked=0, Total=3192 [2022-01-17 23:23:58,178 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 1041 mSDsluCounter, 2901 mSDsCounter, 0 mSdLazyCounter, 1613 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1041 SdHoareTripleChecker+Valid, 2992 SdHoareTripleChecker+Invalid, 1720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 1613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:58,178 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1041 Valid, 2992 Invalid, 1720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 1613 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:23:58,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3050 states. [2022-01-17 23:23:58,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3050 to 2681. [2022-01-17 23:23:58,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2681 states, 2680 states have (on average 2.5455223880597013) internal successors, (6822), 2680 states have internal predecessors, (6822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:58,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2681 states to 2681 states and 6822 transitions. [2022-01-17 23:23:58,202 INFO L78 Accepts]: Start accepts. Automaton has 2681 states and 6822 transitions. Word has length 137 [2022-01-17 23:23:58,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:58,202 INFO L470 AbstractCegarLoop]: Abstraction has 2681 states and 6822 transitions. [2022-01-17 23:23:58,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:58,202 INFO L276 IsEmpty]: Start isEmpty. Operand 2681 states and 6822 transitions. [2022-01-17 23:23:58,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:23:58,204 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:58,204 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:23:58,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-01-17 23:23:58,204 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:23:58,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:58,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1578324995, now seen corresponding path program 30 times [2022-01-17 23:23:58,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:58,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851190192] [2022-01-17 23:23:58,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:58,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:58,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:59,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:59,034 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:59,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851190192] [2022-01-17 23:23:59,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851190192] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:59,034 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:59,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-17 23:23:59,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508824373] [2022-01-17 23:23:59,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:59,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-17 23:23:59,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:59,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-17 23:23:59,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=836, Unknown=0, NotChecked=0, Total=930 [2022-01-17 23:23:59,035 INFO L87 Difference]: Start difference. First operand 2681 states and 6822 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:01,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:01,688 INFO L93 Difference]: Finished difference Result 3413 states and 8564 transitions. [2022-01-17 23:24:01,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-17 23:24:01,689 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:24:01,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:01,693 INFO L225 Difference]: With dead ends: 3413 [2022-01-17 23:24:01,693 INFO L226 Difference]: Without dead ends: 3279 [2022-01-17 23:24:01,693 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 707 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=612, Invalid=2928, Unknown=0, NotChecked=0, Total=3540 [2022-01-17 23:24:01,694 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 1449 mSDsluCounter, 3231 mSDsCounter, 0 mSdLazyCounter, 1764 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1449 SdHoareTripleChecker+Valid, 3324 SdHoareTripleChecker+Invalid, 1913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 1764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:01,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1449 Valid, 3324 Invalid, 1913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 1764 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-17 23:24:01,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3279 states. [2022-01-17 23:24:01,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3279 to 2877. [2022-01-17 23:24:01,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2877 states, 2876 states have (on average 2.5424200278164117) internal successors, (7312), 2876 states have internal predecessors, (7312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:01,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2877 states to 2877 states and 7312 transitions. [2022-01-17 23:24:01,720 INFO L78 Accepts]: Start accepts. Automaton has 2877 states and 7312 transitions. Word has length 137 [2022-01-17 23:24:01,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:01,720 INFO L470 AbstractCegarLoop]: Abstraction has 2877 states and 7312 transitions. [2022-01-17 23:24:01,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:01,720 INFO L276 IsEmpty]: Start isEmpty. Operand 2877 states and 7312 transitions. [2022-01-17 23:24:01,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:24:01,723 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:01,723 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:01,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-01-17 23:24:01,723 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:24:01,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:01,723 INFO L85 PathProgramCache]: Analyzing trace with hash -146469949, now seen corresponding path program 31 times [2022-01-17 23:24:01,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:01,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536001691] [2022-01-17 23:24:01,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:01,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:01,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:02,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:02,762 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:02,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536001691] [2022-01-17 23:24:02,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536001691] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:02,762 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:02,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-17 23:24:02,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295150465] [2022-01-17 23:24:02,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:02,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-17 23:24:02,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:02,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-17 23:24:02,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1008, Unknown=0, NotChecked=0, Total=1122 [2022-01-17 23:24:02,763 INFO L87 Difference]: Start difference. First operand 2877 states and 7312 transitions. Second operand has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:05,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:05,629 INFO L93 Difference]: Finished difference Result 3677 states and 9154 transitions. [2022-01-17 23:24:05,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-01-17 23:24:05,633 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:24:05,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:05,638 INFO L225 Difference]: With dead ends: 3677 [2022-01-17 23:24:05,638 INFO L226 Difference]: Without dead ends: 3024 [2022-01-17 23:24:05,639 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1188 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=841, Invalid=4415, Unknown=0, NotChecked=0, Total=5256 [2022-01-17 23:24:05,639 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 1711 mSDsluCounter, 3792 mSDsCounter, 0 mSdLazyCounter, 1882 mSolverCounterSat, 181 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1711 SdHoareTripleChecker+Valid, 3886 SdHoareTripleChecker+Invalid, 2063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 181 IncrementalHoareTripleChecker+Valid, 1882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:05,639 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1711 Valid, 3886 Invalid, 2063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [181 Valid, 1882 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-17 23:24:05,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3024 states. [2022-01-17 23:24:05,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3024 to 2611. [2022-01-17 23:24:05,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2611 states, 2610 states have (on average 2.535249042145594) internal successors, (6617), 2610 states have internal predecessors, (6617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:05,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2611 states to 2611 states and 6617 transitions. [2022-01-17 23:24:05,667 INFO L78 Accepts]: Start accepts. Automaton has 2611 states and 6617 transitions. Word has length 137 [2022-01-17 23:24:05,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:05,667 INFO L470 AbstractCegarLoop]: Abstraction has 2611 states and 6617 transitions. [2022-01-17 23:24:05,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:05,668 INFO L276 IsEmpty]: Start isEmpty. Operand 2611 states and 6617 transitions. [2022-01-17 23:24:05,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:24:05,670 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:05,670 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:05,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-01-17 23:24:05,670 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:24:05,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:05,670 INFO L85 PathProgramCache]: Analyzing trace with hash -696809013, now seen corresponding path program 32 times [2022-01-17 23:24:05,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:05,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018744438] [2022-01-17 23:24:05,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:05,671 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:05,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:06,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:06,630 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:06,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018744438] [2022-01-17 23:24:06,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018744438] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:06,630 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:06,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-17 23:24:06,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686950786] [2022-01-17 23:24:06,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:06,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-17 23:24:06,630 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:06,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-17 23:24:06,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=836, Unknown=0, NotChecked=0, Total=930 [2022-01-17 23:24:06,631 INFO L87 Difference]: Start difference. First operand 2611 states and 6617 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:08,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:08,847 INFO L93 Difference]: Finished difference Result 2861 states and 7099 transitions. [2022-01-17 23:24:08,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-17 23:24:08,847 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:24:08,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:08,851 INFO L225 Difference]: With dead ends: 2861 [2022-01-17 23:24:08,851 INFO L226 Difference]: Without dead ends: 2712 [2022-01-17 23:24:08,851 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 718 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=623, Invalid=2917, Unknown=0, NotChecked=0, Total=3540 [2022-01-17 23:24:08,852 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 1147 mSDsluCounter, 3001 mSDsCounter, 0 mSdLazyCounter, 1655 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1147 SdHoareTripleChecker+Valid, 3078 SdHoareTripleChecker+Invalid, 1761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 1655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:08,852 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1147 Valid, 3078 Invalid, 1761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 1655 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:24:08,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2712 states. [2022-01-17 23:24:08,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2712 to 2613. [2022-01-17 23:24:08,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2613 states, 2612 states have (on average 2.5344563552833077) internal successors, (6620), 2612 states have internal predecessors, (6620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:08,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2613 states to 2613 states and 6620 transitions. [2022-01-17 23:24:08,875 INFO L78 Accepts]: Start accepts. Automaton has 2613 states and 6620 transitions. Word has length 137 [2022-01-17 23:24:08,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:08,875 INFO L470 AbstractCegarLoop]: Abstraction has 2613 states and 6620 transitions. [2022-01-17 23:24:08,875 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:08,875 INFO L276 IsEmpty]: Start isEmpty. Operand 2613 states and 6620 transitions. [2022-01-17 23:24:08,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:24:08,877 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:08,877 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:08,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-01-17 23:24:08,878 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:24:08,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:08,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1867298743, now seen corresponding path program 33 times [2022-01-17 23:24:08,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:08,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952242933] [2022-01-17 23:24:08,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:08,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:08,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:09,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:09,468 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:09,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952242933] [2022-01-17 23:24:09,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952242933] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:09,468 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:09,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:24:09,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148691246] [2022-01-17 23:24:09,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:09,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:24:09,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:09,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:24:09,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=729, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:24:09,469 INFO L87 Difference]: Start difference. First operand 2613 states and 6620 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:11,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:11,310 INFO L93 Difference]: Finished difference Result 2789 states and 6946 transitions. [2022-01-17 23:24:11,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-17 23:24:11,310 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:24:11,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:11,314 INFO L225 Difference]: With dead ends: 2789 [2022-01-17 23:24:11,314 INFO L226 Difference]: Without dead ends: 2651 [2022-01-17 23:24:11,314 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 621 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=584, Invalid=2608, Unknown=0, NotChecked=0, Total=3192 [2022-01-17 23:24:11,314 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 978 mSDsluCounter, 3085 mSDsCounter, 0 mSdLazyCounter, 1681 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 978 SdHoareTripleChecker+Valid, 3163 SdHoareTripleChecker+Invalid, 1774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 1681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:11,314 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [978 Valid, 3163 Invalid, 1774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 1681 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:24:11,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2651 states. [2022-01-17 23:24:11,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2651 to 2611. [2022-01-17 23:24:11,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2611 states, 2610 states have (on average 2.5348659003831417) internal successors, (6616), 2610 states have internal predecessors, (6616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:11,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2611 states to 2611 states and 6616 transitions. [2022-01-17 23:24:11,337 INFO L78 Accepts]: Start accepts. Automaton has 2611 states and 6616 transitions. Word has length 137 [2022-01-17 23:24:11,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:11,338 INFO L470 AbstractCegarLoop]: Abstraction has 2611 states and 6616 transitions. [2022-01-17 23:24:11,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:11,338 INFO L276 IsEmpty]: Start isEmpty. Operand 2611 states and 6616 transitions. [2022-01-17 23:24:11,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:24:11,340 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:11,340 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:11,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-01-17 23:24:11,340 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:24:11,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:11,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1097320347, now seen corresponding path program 34 times [2022-01-17 23:24:11,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:11,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796226245] [2022-01-17 23:24:11,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:11,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:11,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:12,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:12,261 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:12,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796226245] [2022-01-17 23:24:12,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796226245] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:12,261 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:12,261 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-17 23:24:12,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268506696] [2022-01-17 23:24:12,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:12,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-17 23:24:12,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:12,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-17 23:24:12,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1008, Unknown=0, NotChecked=0, Total=1122 [2022-01-17 23:24:12,262 INFO L87 Difference]: Start difference. First operand 2611 states and 6616 transitions. Second operand has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:14,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:14,542 INFO L93 Difference]: Finished difference Result 3055 states and 7630 transitions. [2022-01-17 23:24:14,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-17 23:24:14,542 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:24:14,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:14,545 INFO L225 Difference]: With dead ends: 3055 [2022-01-17 23:24:14,545 INFO L226 Difference]: Without dead ends: 2921 [2022-01-17 23:24:14,546 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1029 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=773, Invalid=3919, Unknown=0, NotChecked=0, Total=4692 [2022-01-17 23:24:14,546 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 1714 mSDsluCounter, 3359 mSDsCounter, 0 mSdLazyCounter, 1857 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1714 SdHoareTripleChecker+Valid, 3455 SdHoareTripleChecker+Invalid, 2015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 1857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:14,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1714 Valid, 3455 Invalid, 2015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 1857 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:24:14,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2921 states. [2022-01-17 23:24:14,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2921 to 2821. [2022-01-17 23:24:14,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2821 states, 2820 states have (on average 2.529787234042553) internal successors, (7134), 2820 states have internal predecessors, (7134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:14,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2821 states to 2821 states and 7134 transitions. [2022-01-17 23:24:14,571 INFO L78 Accepts]: Start accepts. Automaton has 2821 states and 7134 transitions. Word has length 137 [2022-01-17 23:24:14,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:14,571 INFO L470 AbstractCegarLoop]: Abstraction has 2821 states and 7134 transitions. [2022-01-17 23:24:14,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:14,572 INFO L276 IsEmpty]: Start isEmpty. Operand 2821 states and 7134 transitions. [2022-01-17 23:24:14,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:24:14,574 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:14,574 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:14,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-01-17 23:24:14,574 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:24:14,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:14,575 INFO L85 PathProgramCache]: Analyzing trace with hash 294690569, now seen corresponding path program 35 times [2022-01-17 23:24:14,575 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:14,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762378244] [2022-01-17 23:24:14,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:14,575 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:14,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:15,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:15,304 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:15,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762378244] [2022-01-17 23:24:15,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762378244] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:15,304 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:15,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-17 23:24:15,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795588280] [2022-01-17 23:24:15,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:15,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-17 23:24:15,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:15,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-17 23:24:15,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1008, Unknown=0, NotChecked=0, Total=1122 [2022-01-17 23:24:15,305 INFO L87 Difference]: Start difference. First operand 2821 states and 7134 transitions. Second operand has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:18,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:18,260 INFO L93 Difference]: Finished difference Result 3319 states and 8220 transitions. [2022-01-17 23:24:18,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-17 23:24:18,260 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:24:18,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:18,263 INFO L225 Difference]: With dead ends: 3319 [2022-01-17 23:24:18,263 INFO L226 Difference]: Without dead ends: 2736 [2022-01-17 23:24:18,264 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1068 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=796, Invalid=4034, Unknown=0, NotChecked=0, Total=4830 [2022-01-17 23:24:18,264 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 1988 mSDsluCounter, 3947 mSDsCounter, 0 mSdLazyCounter, 1804 mSolverCounterSat, 199 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1988 SdHoareTripleChecker+Valid, 4055 SdHoareTripleChecker+Invalid, 2003 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 199 IncrementalHoareTripleChecker+Valid, 1804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:18,264 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1988 Valid, 4055 Invalid, 2003 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [199 Valid, 1804 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-17 23:24:18,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2736 states. [2022-01-17 23:24:18,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2736 to 2625. [2022-01-17 23:24:18,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2625 states, 2624 states have (on average 2.526676829268293) internal successors, (6630), 2624 states have internal predecessors, (6630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:18,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2625 states to 2625 states and 6630 transitions. [2022-01-17 23:24:18,287 INFO L78 Accepts]: Start accepts. Automaton has 2625 states and 6630 transitions. Word has length 137 [2022-01-17 23:24:18,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:18,287 INFO L470 AbstractCegarLoop]: Abstraction has 2625 states and 6630 transitions. [2022-01-17 23:24:18,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:18,287 INFO L276 IsEmpty]: Start isEmpty. Operand 2625 states and 6630 transitions. [2022-01-17 23:24:18,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:24:18,290 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:18,290 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:18,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-01-17 23:24:18,290 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:24:18,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:18,291 INFO L85 PathProgramCache]: Analyzing trace with hash -859519545, now seen corresponding path program 36 times [2022-01-17 23:24:18,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:18,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362453050] [2022-01-17 23:24:18,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:18,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:18,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:19,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:19,194 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:19,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362453050] [2022-01-17 23:24:19,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362453050] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:19,194 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:19,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-17 23:24:19,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60786538] [2022-01-17 23:24:19,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:19,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-17 23:24:19,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:19,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-17 23:24:19,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1008, Unknown=0, NotChecked=0, Total=1122 [2022-01-17 23:24:19,195 INFO L87 Difference]: Start difference. First operand 2625 states and 6630 transitions. Second operand has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:21,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:21,381 INFO L93 Difference]: Finished difference Result 2769 states and 6894 transitions. [2022-01-17 23:24:21,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-17 23:24:21,381 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:24:21,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:21,384 INFO L225 Difference]: With dead ends: 2769 [2022-01-17 23:24:21,384 INFO L226 Difference]: Without dead ends: 2413 [2022-01-17 23:24:21,384 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 980 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=762, Invalid=3794, Unknown=0, NotChecked=0, Total=4556 [2022-01-17 23:24:21,385 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 1449 mSDsluCounter, 2838 mSDsCounter, 0 mSdLazyCounter, 1559 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1449 SdHoareTripleChecker+Valid, 2926 SdHoareTripleChecker+Invalid, 1696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 1559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:21,385 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1449 Valid, 2926 Invalid, 1696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 1559 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:24:21,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2413 states. [2022-01-17 23:24:21,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2413 to 2405. [2022-01-17 23:24:21,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2405 states, 2404 states have (on average 2.53369384359401) internal successors, (6091), 2404 states have internal predecessors, (6091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:21,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2405 states to 2405 states and 6091 transitions. [2022-01-17 23:24:21,409 INFO L78 Accepts]: Start accepts. Automaton has 2405 states and 6091 transitions. Word has length 137 [2022-01-17 23:24:21,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:21,409 INFO L470 AbstractCegarLoop]: Abstraction has 2405 states and 6091 transitions. [2022-01-17 23:24:21,409 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:21,409 INFO L276 IsEmpty]: Start isEmpty. Operand 2405 states and 6091 transitions. [2022-01-17 23:24:21,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:24:21,412 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:21,412 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:21,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-01-17 23:24:21,412 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:24:21,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:21,412 INFO L85 PathProgramCache]: Analyzing trace with hash -974143707, now seen corresponding path program 37 times [2022-01-17 23:24:21,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:21,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354688773] [2022-01-17 23:24:21,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:21,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:21,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:22,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:22,113 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:22,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354688773] [2022-01-17 23:24:22,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354688773] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:22,113 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:22,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-17 23:24:22,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134031917] [2022-01-17 23:24:22,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:22,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-17 23:24:22,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:22,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-17 23:24:22,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=841, Unknown=0, NotChecked=0, Total=930 [2022-01-17 23:24:22,114 INFO L87 Difference]: Start difference. First operand 2405 states and 6091 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:23,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:23,577 INFO L93 Difference]: Finished difference Result 2540 states and 6332 transitions. [2022-01-17 23:24:23,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:24:23,578 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:24:23,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:23,580 INFO L225 Difference]: With dead ends: 2540 [2022-01-17 23:24:23,580 INFO L226 Difference]: Without dead ends: 2423 [2022-01-17 23:24:23,581 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 616 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=539, Invalid=2541, Unknown=0, NotChecked=0, Total=3080 [2022-01-17 23:24:23,581 INFO L933 BasicCegarLoop]: 160 mSDtfsCounter, 1248 mSDsluCounter, 2254 mSDsCounter, 0 mSdLazyCounter, 1323 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1248 SdHoareTripleChecker+Valid, 2340 SdHoareTripleChecker+Invalid, 1444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 1323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:23,581 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1248 Valid, 2340 Invalid, 1444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 1323 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:24:23,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2423 states. [2022-01-17 23:24:23,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2423 to 2399. [2022-01-17 23:24:23,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2399 states, 2398 states have (on average 2.5350291909924936) internal successors, (6079), 2398 states have internal predecessors, (6079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:23,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2399 states to 2399 states and 6079 transitions. [2022-01-17 23:24:23,601 INFO L78 Accepts]: Start accepts. Automaton has 2399 states and 6079 transitions. Word has length 137 [2022-01-17 23:24:23,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:23,601 INFO L470 AbstractCegarLoop]: Abstraction has 2399 states and 6079 transitions. [2022-01-17 23:24:23,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:23,601 INFO L276 IsEmpty]: Start isEmpty. Operand 2399 states and 6079 transitions. [2022-01-17 23:24:23,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:24:23,603 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:23,603 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:23,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-01-17 23:24:23,604 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:24:23,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:23,604 INFO L85 PathProgramCache]: Analyzing trace with hash -2137545691, now seen corresponding path program 38 times [2022-01-17 23:24:23,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:23,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511054821] [2022-01-17 23:24:23,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:23,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:23,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:24,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:24,328 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:24,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511054821] [2022-01-17 23:24:24,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511054821] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:24,328 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:24,328 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-17 23:24:24,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427761893] [2022-01-17 23:24:24,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:24,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-17 23:24:24,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:24,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-17 23:24:24,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2022-01-17 23:24:24,329 INFO L87 Difference]: Start difference. First operand 2399 states and 6079 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:26,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:26,056 INFO L93 Difference]: Finished difference Result 2564 states and 6379 transitions. [2022-01-17 23:24:26,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:24:26,057 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:24:26,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:26,061 INFO L225 Difference]: With dead ends: 2564 [2022-01-17 23:24:26,061 INFO L226 Difference]: Without dead ends: 2453 [2022-01-17 23:24:26,061 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 426 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=496, Invalid=2260, Unknown=0, NotChecked=0, Total=2756 [2022-01-17 23:24:26,062 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 1031 mSDsluCounter, 2309 mSDsCounter, 0 mSdLazyCounter, 1313 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1031 SdHoareTripleChecker+Valid, 2410 SdHoareTripleChecker+Invalid, 1413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:26,062 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1031 Valid, 2410 Invalid, 1413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1313 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:24:26,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2453 states. [2022-01-17 23:24:26,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2453 to 2397. [2022-01-17 23:24:26,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2397 states, 2396 states have (on average 2.535475792988314) internal successors, (6075), 2396 states have internal predecessors, (6075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:26,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2397 states to 2397 states and 6075 transitions. [2022-01-17 23:24:26,085 INFO L78 Accepts]: Start accepts. Automaton has 2397 states and 6075 transitions. Word has length 137 [2022-01-17 23:24:26,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:26,085 INFO L470 AbstractCegarLoop]: Abstraction has 2397 states and 6075 transitions. [2022-01-17 23:24:26,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:26,086 INFO L276 IsEmpty]: Start isEmpty. Operand 2397 states and 6075 transitions. [2022-01-17 23:24:26,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:24:26,088 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:26,088 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:26,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-01-17 23:24:26,088 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:24:26,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:26,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1481802843, now seen corresponding path program 39 times [2022-01-17 23:24:26,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:26,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957616077] [2022-01-17 23:24:26,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:26,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:26,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:26,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:26,670 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:26,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957616077] [2022-01-17 23:24:26,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957616077] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:26,671 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:26,671 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:24:26,671 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770490283] [2022-01-17 23:24:26,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:26,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:24:26,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:26,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:24:26,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=729, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:24:26,671 INFO L87 Difference]: Start difference. First operand 2397 states and 6075 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:28,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:28,184 INFO L93 Difference]: Finished difference Result 2590 states and 6431 transitions. [2022-01-17 23:24:28,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:24:28,185 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:24:28,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:28,188 INFO L225 Difference]: With dead ends: 2590 [2022-01-17 23:24:28,188 INFO L226 Difference]: Without dead ends: 2481 [2022-01-17 23:24:28,188 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 549 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=513, Invalid=2349, Unknown=0, NotChecked=0, Total=2862 [2022-01-17 23:24:28,188 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 1012 mSDsluCounter, 2367 mSDsCounter, 0 mSdLazyCounter, 1380 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1012 SdHoareTripleChecker+Valid, 2481 SdHoareTripleChecker+Invalid, 1477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 1380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:28,188 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1012 Valid, 2481 Invalid, 1477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 1380 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:24:28,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2481 states. [2022-01-17 23:24:28,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2481 to 2437. [2022-01-17 23:24:28,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2437 states, 2436 states have (on average 2.5254515599343184) internal successors, (6152), 2436 states have internal predecessors, (6152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:28,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2437 states to 2437 states and 6152 transitions. [2022-01-17 23:24:28,209 INFO L78 Accepts]: Start accepts. Automaton has 2437 states and 6152 transitions. Word has length 137 [2022-01-17 23:24:28,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:28,210 INFO L470 AbstractCegarLoop]: Abstraction has 2437 states and 6152 transitions. [2022-01-17 23:24:28,210 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:28,210 INFO L276 IsEmpty]: Start isEmpty. Operand 2437 states and 6152 transitions. [2022-01-17 23:24:28,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:24:28,212 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:28,212 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:28,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-01-17 23:24:28,212 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:24:28,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:28,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1936819227, now seen corresponding path program 40 times [2022-01-17 23:24:28,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:28,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122094973] [2022-01-17 23:24:28,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:28,213 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:28,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:28,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:28,853 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:28,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122094973] [2022-01-17 23:24:28,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122094973] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:28,853 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:28,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:24:28,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564708958] [2022-01-17 23:24:28,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:28,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:24:28,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:28,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:24:28,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=728, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:24:28,854 INFO L87 Difference]: Start difference. First operand 2437 states and 6152 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:30,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:30,461 INFO L93 Difference]: Finished difference Result 2598 states and 6446 transitions. [2022-01-17 23:24:30,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-17 23:24:30,461 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:24:30,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:30,464 INFO L225 Difference]: With dead ends: 2598 [2022-01-17 23:24:30,464 INFO L226 Difference]: Without dead ends: 2497 [2022-01-17 23:24:30,465 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 596 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=555, Invalid=2525, Unknown=0, NotChecked=0, Total=3080 [2022-01-17 23:24:30,465 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 894 mSDsluCounter, 2661 mSDsCounter, 0 mSdLazyCounter, 1454 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 894 SdHoareTripleChecker+Valid, 2781 SdHoareTripleChecker+Invalid, 1542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:30,465 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [894 Valid, 2781 Invalid, 1542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1454 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:24:30,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2497 states. [2022-01-17 23:24:30,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2497 to 2451. [2022-01-17 23:24:30,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2451 states, 2450 states have (on average 2.5220408163265304) internal successors, (6179), 2450 states have internal predecessors, (6179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:30,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2451 states to 2451 states and 6179 transitions. [2022-01-17 23:24:30,487 INFO L78 Accepts]: Start accepts. Automaton has 2451 states and 6179 transitions. Word has length 137 [2022-01-17 23:24:30,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:30,487 INFO L470 AbstractCegarLoop]: Abstraction has 2451 states and 6179 transitions. [2022-01-17 23:24:30,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:30,488 INFO L276 IsEmpty]: Start isEmpty. Operand 2451 states and 6179 transitions. [2022-01-17 23:24:30,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:24:30,490 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:30,490 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:30,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-01-17 23:24:30,491 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:24:30,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:30,491 INFO L85 PathProgramCache]: Analyzing trace with hash -603080859, now seen corresponding path program 41 times [2022-01-17 23:24:30,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:30,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061409603] [2022-01-17 23:24:30,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:30,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:30,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:31,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:31,100 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:31,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061409603] [2022-01-17 23:24:31,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061409603] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:31,101 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:31,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:24:31,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554661453] [2022-01-17 23:24:31,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:31,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:24:31,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:31,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:24:31,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=726, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:24:31,101 INFO L87 Difference]: Start difference. First operand 2451 states and 6179 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:33,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:33,036 INFO L93 Difference]: Finished difference Result 2856 states and 7108 transitions. [2022-01-17 23:24:33,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:24:33,036 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:24:33,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:33,039 INFO L225 Difference]: With dead ends: 2856 [2022-01-17 23:24:33,039 INFO L226 Difference]: Without dead ends: 2757 [2022-01-17 23:24:33,040 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 575 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=525, Invalid=2445, Unknown=0, NotChecked=0, Total=2970 [2022-01-17 23:24:33,040 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 1135 mSDsluCounter, 2576 mSDsCounter, 0 mSdLazyCounter, 1398 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1135 SdHoareTripleChecker+Valid, 2719 SdHoareTripleChecker+Invalid, 1513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 1398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:33,040 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1135 Valid, 2719 Invalid, 1513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 1398 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:24:33,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2757 states. [2022-01-17 23:24:33,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2757 to 2647. [2022-01-17 23:24:33,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2647 states, 2646 states have (on average 2.520408163265306) internal successors, (6669), 2646 states have internal predecessors, (6669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:33,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2647 states to 2647 states and 6669 transitions. [2022-01-17 23:24:33,109 INFO L78 Accepts]: Start accepts. Automaton has 2647 states and 6669 transitions. Word has length 137 [2022-01-17 23:24:33,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:33,109 INFO L470 AbstractCegarLoop]: Abstraction has 2647 states and 6669 transitions. [2022-01-17 23:24:33,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:33,109 INFO L276 IsEmpty]: Start isEmpty. Operand 2647 states and 6669 transitions. [2022-01-17 23:24:33,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:24:33,111 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:33,111 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:33,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-01-17 23:24:33,111 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:24:33,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:33,112 INFO L85 PathProgramCache]: Analyzing trace with hash -395026715, now seen corresponding path program 42 times [2022-01-17 23:24:33,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:33,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086498535] [2022-01-17 23:24:33,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:33,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:33,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:33,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:33,730 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:33,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086498535] [2022-01-17 23:24:33,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086498535] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:33,731 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:33,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-17 23:24:33,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938446243] [2022-01-17 23:24:33,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:33,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-17 23:24:33,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:33,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-17 23:24:33,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=830, Unknown=0, NotChecked=0, Total=930 [2022-01-17 23:24:33,731 INFO L87 Difference]: Start difference. First operand 2647 states and 6669 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:35,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:35,184 INFO L93 Difference]: Finished difference Result 3059 states and 7595 transitions. [2022-01-17 23:24:35,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:24:35,184 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:24:35,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:35,187 INFO L225 Difference]: With dead ends: 3059 [2022-01-17 23:24:35,187 INFO L226 Difference]: Without dead ends: 2784 [2022-01-17 23:24:35,188 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 594 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=565, Invalid=2627, Unknown=0, NotChecked=0, Total=3192 [2022-01-17 23:24:35,188 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 1352 mSDsluCounter, 2656 mSDsCounter, 0 mSdLazyCounter, 1252 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1352 SdHoareTripleChecker+Valid, 2824 SdHoareTripleChecker+Invalid, 1385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 1252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:35,188 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1352 Valid, 2824 Invalid, 1385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 1252 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:24:35,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2784 states. [2022-01-17 23:24:35,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2784 to 2689. [2022-01-17 23:24:35,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2689 states, 2688 states have (on average 2.5070684523809526) internal successors, (6739), 2688 states have internal predecessors, (6739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:35,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2689 states to 2689 states and 6739 transitions. [2022-01-17 23:24:35,211 INFO L78 Accepts]: Start accepts. Automaton has 2689 states and 6739 transitions. Word has length 137 [2022-01-17 23:24:35,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:35,212 INFO L470 AbstractCegarLoop]: Abstraction has 2689 states and 6739 transitions. [2022-01-17 23:24:35,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:35,212 INFO L276 IsEmpty]: Start isEmpty. Operand 2689 states and 6739 transitions. [2022-01-17 23:24:35,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:24:35,214 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:35,214 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:35,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-01-17 23:24:35,214 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:24:35,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:35,215 INFO L85 PathProgramCache]: Analyzing trace with hash 550165315, now seen corresponding path program 43 times [2022-01-17 23:24:35,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:35,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427307554] [2022-01-17 23:24:35,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:35,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:35,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:36,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:36,049 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:36,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427307554] [2022-01-17 23:24:36,049 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427307554] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:36,049 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:36,049 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-17 23:24:36,049 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579589335] [2022-01-17 23:24:36,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:36,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-17 23:24:36,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:36,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-17 23:24:36,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=1004, Unknown=0, NotChecked=0, Total=1122 [2022-01-17 23:24:36,050 INFO L87 Difference]: Start difference. First operand 2689 states and 6739 transitions. Second operand has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:38,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:38,611 INFO L93 Difference]: Finished difference Result 2855 states and 7048 transitions. [2022-01-17 23:24:38,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-17 23:24:38,611 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:24:38,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:38,614 INFO L225 Difference]: With dead ends: 2855 [2022-01-17 23:24:38,614 INFO L226 Difference]: Without dead ends: 2414 [2022-01-17 23:24:38,615 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 971 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=800, Invalid=3892, Unknown=0, NotChecked=0, Total=4692 [2022-01-17 23:24:38,615 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 1521 mSDsluCounter, 2739 mSDsCounter, 0 mSdLazyCounter, 1379 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1521 SdHoareTripleChecker+Valid, 2880 SdHoareTripleChecker+Invalid, 1520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 1379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:38,615 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1521 Valid, 2880 Invalid, 1520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 1379 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:24:38,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2414 states. [2022-01-17 23:24:38,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2414 to 2319. [2022-01-17 23:24:38,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2319 states, 2318 states have (on average 2.537532355478861) internal successors, (5882), 2318 states have internal predecessors, (5882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:38,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2319 states to 2319 states and 5882 transitions. [2022-01-17 23:24:38,636 INFO L78 Accepts]: Start accepts. Automaton has 2319 states and 5882 transitions. Word has length 137 [2022-01-17 23:24:38,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:38,636 INFO L470 AbstractCegarLoop]: Abstraction has 2319 states and 5882 transitions. [2022-01-17 23:24:38,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:38,636 INFO L276 IsEmpty]: Start isEmpty. Operand 2319 states and 5882 transitions. [2022-01-17 23:24:38,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:24:38,638 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:38,638 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:38,638 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-01-17 23:24:38,638 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:24:38,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:38,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1631969307, now seen corresponding path program 44 times [2022-01-17 23:24:38,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:38,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712672613] [2022-01-17 23:24:38,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:38,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:38,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:39,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:39,441 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:39,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712672613] [2022-01-17 23:24:39,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712672613] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:39,441 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:39,441 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-17 23:24:39,441 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502724493] [2022-01-17 23:24:39,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:39,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-17 23:24:39,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:39,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-17 23:24:39,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2022-01-17 23:24:39,442 INFO L87 Difference]: Start difference. First operand 2319 states and 5882 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:41,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:41,013 INFO L93 Difference]: Finished difference Result 2639 states and 6527 transitions. [2022-01-17 23:24:41,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:24:41,013 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:24:41,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:41,016 INFO L225 Difference]: With dead ends: 2639 [2022-01-17 23:24:41,016 INFO L226 Difference]: Without dead ends: 2490 [2022-01-17 23:24:41,017 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 471 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=508, Invalid=2354, Unknown=0, NotChecked=0, Total=2862 [2022-01-17 23:24:41,017 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 891 mSDsluCounter, 2227 mSDsCounter, 0 mSdLazyCounter, 1413 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 891 SdHoareTripleChecker+Valid, 2283 SdHoareTripleChecker+Invalid, 1494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:41,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [891 Valid, 2283 Invalid, 1494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1413 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:24:41,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2490 states. [2022-01-17 23:24:41,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2490 to 2359. [2022-01-17 23:24:41,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2359 states, 2358 states have (on average 2.536047497879559) internal successors, (5980), 2358 states have internal predecessors, (5980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:41,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2359 states to 2359 states and 5980 transitions. [2022-01-17 23:24:41,037 INFO L78 Accepts]: Start accepts. Automaton has 2359 states and 5980 transitions. Word has length 137 [2022-01-17 23:24:41,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:41,037 INFO L470 AbstractCegarLoop]: Abstraction has 2359 states and 5980 transitions. [2022-01-17 23:24:41,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:41,037 INFO L276 IsEmpty]: Start isEmpty. Operand 2359 states and 5980 transitions. [2022-01-17 23:24:41,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:24:41,039 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:41,039 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:41,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-01-17 23:24:41,039 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:24:41,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:41,040 INFO L85 PathProgramCache]: Analyzing trace with hash 844322295, now seen corresponding path program 45 times [2022-01-17 23:24:41,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:41,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165618273] [2022-01-17 23:24:41,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:41,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:41,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:41,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:41,738 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:41,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165618273] [2022-01-17 23:24:41,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165618273] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:41,738 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:41,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-17 23:24:41,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141504009] [2022-01-17 23:24:41,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:41,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-17 23:24:41,745 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:41,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-17 23:24:41,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2022-01-17 23:24:41,745 INFO L87 Difference]: Start difference. First operand 2359 states and 5980 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:43,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:43,762 INFO L93 Difference]: Finished difference Result 2569 states and 6377 transitions. [2022-01-17 23:24:43,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:24:43,762 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:24:43,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:43,765 INFO L225 Difference]: With dead ends: 2569 [2022-01-17 23:24:43,765 INFO L226 Difference]: Without dead ends: 2431 [2022-01-17 23:24:43,766 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=516, Invalid=2346, Unknown=0, NotChecked=0, Total=2862 [2022-01-17 23:24:43,766 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 1014 mSDsluCounter, 1923 mSDsCounter, 0 mSdLazyCounter, 1222 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1014 SdHoareTripleChecker+Valid, 1998 SdHoareTripleChecker+Invalid, 1312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 1222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:43,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1014 Valid, 1998 Invalid, 1312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 1222 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:24:43,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2431 states. [2022-01-17 23:24:43,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2431 to 2357. [2022-01-17 23:24:43,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2357 states, 2356 states have (on average 2.5360780984719864) internal successors, (5975), 2356 states have internal predecessors, (5975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:43,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2357 states to 2357 states and 5975 transitions. [2022-01-17 23:24:43,788 INFO L78 Accepts]: Start accepts. Automaton has 2357 states and 5975 transitions. Word has length 137 [2022-01-17 23:24:43,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:43,788 INFO L470 AbstractCegarLoop]: Abstraction has 2357 states and 5975 transitions. [2022-01-17 23:24:43,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:43,788 INFO L276 IsEmpty]: Start isEmpty. Operand 2357 states and 5975 transitions. [2022-01-17 23:24:43,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:24:43,790 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:43,790 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:43,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-01-17 23:24:43,790 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:24:43,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:43,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1991475765, now seen corresponding path program 46 times [2022-01-17 23:24:43,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:43,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614159573] [2022-01-17 23:24:43,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:43,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:43,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:44,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:44,554 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:44,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614159573] [2022-01-17 23:24:44,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614159573] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:44,554 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:44,554 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-17 23:24:44,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703822186] [2022-01-17 23:24:44,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:44,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-17 23:24:44,554 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:44,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-17 23:24:44,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=843, Unknown=0, NotChecked=0, Total=930 [2022-01-17 23:24:44,555 INFO L87 Difference]: Start difference. First operand 2357 states and 5975 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:46,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:46,150 INFO L93 Difference]: Finished difference Result 2567 states and 6372 transitions. [2022-01-17 23:24:46,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:24:46,150 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:24:46,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:46,153 INFO L225 Difference]: With dead ends: 2567 [2022-01-17 23:24:46,153 INFO L226 Difference]: Without dead ends: 2419 [2022-01-17 23:24:46,153 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 594 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=539, Invalid=2541, Unknown=0, NotChecked=0, Total=3080 [2022-01-17 23:24:46,153 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 1023 mSDsluCounter, 2235 mSDsCounter, 0 mSdLazyCounter, 1494 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1023 SdHoareTripleChecker+Valid, 2296 SdHoareTripleChecker+Invalid, 1596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:46,153 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1023 Valid, 2296 Invalid, 1596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1494 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:24:46,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2419 states. [2022-01-17 23:24:46,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2419 to 2353. [2022-01-17 23:24:46,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2353 states, 2352 states have (on average 2.5327380952380953) internal successors, (5957), 2352 states have internal predecessors, (5957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:46,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2353 states to 2353 states and 5957 transitions. [2022-01-17 23:24:46,174 INFO L78 Accepts]: Start accepts. Automaton has 2353 states and 5957 transitions. Word has length 137 [2022-01-17 23:24:46,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:46,175 INFO L470 AbstractCegarLoop]: Abstraction has 2353 states and 5957 transitions. [2022-01-17 23:24:46,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:46,175 INFO L276 IsEmpty]: Start isEmpty. Operand 2353 states and 5957 transitions. [2022-01-17 23:24:46,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:24:46,177 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:46,177 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:46,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-01-17 23:24:46,177 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:24:46,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:46,177 INFO L85 PathProgramCache]: Analyzing trace with hash 382697111, now seen corresponding path program 47 times [2022-01-17 23:24:46,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:46,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402483731] [2022-01-17 23:24:46,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:46,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:46,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:46,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:46,897 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:46,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402483731] [2022-01-17 23:24:46,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402483731] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:46,898 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:46,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:24:46,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567701896] [2022-01-17 23:24:46,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:46,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:24:46,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:46,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:24:46,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=733, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:24:46,899 INFO L87 Difference]: Start difference. First operand 2353 states and 5957 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:48,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:48,919 INFO L93 Difference]: Finished difference Result 2675 states and 6603 transitions. [2022-01-17 23:24:48,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-17 23:24:48,919 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:24:48,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:48,922 INFO L225 Difference]: With dead ends: 2675 [2022-01-17 23:24:48,922 INFO L226 Difference]: Without dead ends: 2481 [2022-01-17 23:24:48,922 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 575 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=538, Invalid=2542, Unknown=0, NotChecked=0, Total=3080 [2022-01-17 23:24:48,923 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 1203 mSDsluCounter, 2149 mSDsCounter, 0 mSdLazyCounter, 1314 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1203 SdHoareTripleChecker+Valid, 2218 SdHoareTripleChecker+Invalid, 1421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 1314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:48,923 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1203 Valid, 2218 Invalid, 1421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 1314 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:24:48,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2481 states. [2022-01-17 23:24:48,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2481 to 2359. [2022-01-17 23:24:48,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2359 states, 2358 states have (on average 2.5301102629346905) internal successors, (5966), 2358 states have internal predecessors, (5966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:48,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2359 states to 2359 states and 5966 transitions. [2022-01-17 23:24:48,943 INFO L78 Accepts]: Start accepts. Automaton has 2359 states and 5966 transitions. Word has length 137 [2022-01-17 23:24:48,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:48,943 INFO L470 AbstractCegarLoop]: Abstraction has 2359 states and 5966 transitions. [2022-01-17 23:24:48,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:48,943 INFO L276 IsEmpty]: Start isEmpty. Operand 2359 states and 5966 transitions. [2022-01-17 23:24:48,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:24:48,945 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:48,945 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:48,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-01-17 23:24:48,945 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:24:48,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:48,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1246063225, now seen corresponding path program 48 times [2022-01-17 23:24:48,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:48,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897110266] [2022-01-17 23:24:48,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:48,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:48,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:49,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:49,854 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:49,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897110266] [2022-01-17 23:24:49,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897110266] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:49,855 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:49,855 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-17 23:24:49,855 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089427730] [2022-01-17 23:24:49,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:49,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-17 23:24:49,855 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:49,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-17 23:24:49,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=795, Unknown=0, NotChecked=0, Total=870 [2022-01-17 23:24:49,855 INFO L87 Difference]: Start difference. First operand 2359 states and 5966 transitions. Second operand has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:51,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:51,739 INFO L93 Difference]: Finished difference Result 2623 states and 6481 transitions. [2022-01-17 23:24:51,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-17 23:24:51,739 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:24:51,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:51,742 INFO L225 Difference]: With dead ends: 2623 [2022-01-17 23:24:51,742 INFO L226 Difference]: Without dead ends: 2474 [2022-01-17 23:24:51,743 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 557 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=552, Invalid=2640, Unknown=0, NotChecked=0, Total=3192 [2022-01-17 23:24:51,743 INFO L933 BasicCegarLoop]: 160 mSDtfsCounter, 1090 mSDsluCounter, 2224 mSDsCounter, 0 mSdLazyCounter, 1376 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1090 SdHoareTripleChecker+Valid, 2281 SdHoareTripleChecker+Invalid, 1477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 1376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:51,743 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1090 Valid, 2281 Invalid, 1477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 1376 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:24:51,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2474 states. [2022-01-17 23:24:51,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2474 to 2361. [2022-01-17 23:24:51,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2361 states, 2360 states have (on average 2.5292372881355933) internal successors, (5969), 2360 states have internal predecessors, (5969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:51,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2361 states to 2361 states and 5969 transitions. [2022-01-17 23:24:51,763 INFO L78 Accepts]: Start accepts. Automaton has 2361 states and 5969 transitions. Word has length 137 [2022-01-17 23:24:51,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:51,763 INFO L470 AbstractCegarLoop]: Abstraction has 2361 states and 5969 transitions. [2022-01-17 23:24:51,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:51,763 INFO L276 IsEmpty]: Start isEmpty. Operand 2361 states and 5969 transitions. [2022-01-17 23:24:51,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:24:51,766 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:51,766 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:51,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-01-17 23:24:51,766 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:24:51,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:51,766 INFO L85 PathProgramCache]: Analyzing trace with hash 458416213, now seen corresponding path program 49 times [2022-01-17 23:24:51,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:51,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256490598] [2022-01-17 23:24:51,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:51,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:51,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:52,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:52,478 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:52,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256490598] [2022-01-17 23:24:52,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256490598] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:52,478 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:52,478 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-17 23:24:52,478 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711099406] [2022-01-17 23:24:52,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:52,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-17 23:24:52,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:52,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-17 23:24:52,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=795, Unknown=0, NotChecked=0, Total=870 [2022-01-17 23:24:52,479 INFO L87 Difference]: Start difference. First operand 2361 states and 5969 transitions. Second operand has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:54,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:54,276 INFO L93 Difference]: Finished difference Result 2549 states and 6325 transitions. [2022-01-17 23:24:54,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:24:54,277 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:24:54,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:54,279 INFO L225 Difference]: With dead ends: 2549 [2022-01-17 23:24:54,279 INFO L226 Difference]: Without dead ends: 2387 [2022-01-17 23:24:54,280 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 515 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=544, Invalid=2536, Unknown=0, NotChecked=0, Total=3080 [2022-01-17 23:24:54,280 INFO L933 BasicCegarLoop]: 156 mSDtfsCounter, 983 mSDsluCounter, 2360 mSDsCounter, 0 mSdLazyCounter, 1480 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 983 SdHoareTripleChecker+Valid, 2416 SdHoareTripleChecker+Invalid, 1564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 1480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:54,280 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [983 Valid, 2416 Invalid, 1564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 1480 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:24:54,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2387 states. [2022-01-17 23:24:54,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2387 to 2335. [2022-01-17 23:24:54,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2335 states, 2334 states have (on average 2.5329905741216794) internal successors, (5912), 2334 states have internal predecessors, (5912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:54,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2335 states to 2335 states and 5912 transitions. [2022-01-17 23:24:54,299 INFO L78 Accepts]: Start accepts. Automaton has 2335 states and 5912 transitions. Word has length 137 [2022-01-17 23:24:54,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:54,300 INFO L470 AbstractCegarLoop]: Abstraction has 2335 states and 5912 transitions. [2022-01-17 23:24:54,300 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:54,300 INFO L276 IsEmpty]: Start isEmpty. Operand 2335 states and 5912 transitions. [2022-01-17 23:24:54,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:24:54,302 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:54,302 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:54,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-01-17 23:24:54,302 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:24:54,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:54,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1579904957, now seen corresponding path program 50 times [2022-01-17 23:24:54,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:54,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826151487] [2022-01-17 23:24:54,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:54,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:54,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:55,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:55,146 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:55,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826151487] [2022-01-17 23:24:55,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826151487] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:55,146 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:55,146 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-17 23:24:55,146 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345789155] [2022-01-17 23:24:55,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:55,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-17 23:24:55,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:55,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-17 23:24:55,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=843, Unknown=0, NotChecked=0, Total=930 [2022-01-17 23:24:55,147 INFO L87 Difference]: Start difference. First operand 2335 states and 5912 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:56,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:56,624 INFO L93 Difference]: Finished difference Result 2490 states and 6199 transitions. [2022-01-17 23:24:56,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:24:56,624 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:24:56,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:56,627 INFO L225 Difference]: With dead ends: 2490 [2022-01-17 23:24:56,627 INFO L226 Difference]: Without dead ends: 2373 [2022-01-17 23:24:56,627 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 594 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=539, Invalid=2541, Unknown=0, NotChecked=0, Total=3080 [2022-01-17 23:24:56,628 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 1163 mSDsluCounter, 2220 mSDsCounter, 0 mSdLazyCounter, 1346 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1163 SdHoareTripleChecker+Valid, 2297 SdHoareTripleChecker+Invalid, 1451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 1346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:56,628 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1163 Valid, 2297 Invalid, 1451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 1346 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:24:56,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2373 states. [2022-01-17 23:24:56,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2373 to 2325. [2022-01-17 23:24:56,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2325 states, 2324 states have (on average 2.534853700516351) internal successors, (5891), 2324 states have internal predecessors, (5891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:56,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2325 states to 2325 states and 5891 transitions. [2022-01-17 23:24:56,649 INFO L78 Accepts]: Start accepts. Automaton has 2325 states and 5891 transitions. Word has length 137 [2022-01-17 23:24:56,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:56,649 INFO L470 AbstractCegarLoop]: Abstraction has 2325 states and 5891 transitions. [2022-01-17 23:24:56,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:56,649 INFO L276 IsEmpty]: Start isEmpty. Operand 2325 states and 5891 transitions. [2022-01-17 23:24:56,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:24:56,651 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:56,651 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:56,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-01-17 23:24:56,651 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:24:56,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:56,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1286899175, now seen corresponding path program 51 times [2022-01-17 23:24:56,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:56,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843843309] [2022-01-17 23:24:56,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:56,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:56,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:57,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:57,267 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:57,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843843309] [2022-01-17 23:24:57,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843843309] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:57,267 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:57,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-17 23:24:57,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790975124] [2022-01-17 23:24:57,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:57,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-17 23:24:57,267 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:57,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-17 23:24:57,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2022-01-17 23:24:57,268 INFO L87 Difference]: Start difference. First operand 2325 states and 5891 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:59,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:59,007 INFO L93 Difference]: Finished difference Result 2589 states and 6410 transitions. [2022-01-17 23:24:59,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:24:59,008 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:24:59,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:59,011 INFO L225 Difference]: With dead ends: 2589 [2022-01-17 23:24:59,011 INFO L226 Difference]: Without dead ends: 2440 [2022-01-17 23:24:59,011 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 471 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=508, Invalid=2354, Unknown=0, NotChecked=0, Total=2862 [2022-01-17 23:24:59,011 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 1014 mSDsluCounter, 2190 mSDsCounter, 0 mSdLazyCounter, 1350 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1014 SdHoareTripleChecker+Valid, 2248 SdHoareTripleChecker+Invalid, 1438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:59,011 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1014 Valid, 2248 Invalid, 1438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1350 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:24:59,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2440 states. [2022-01-17 23:24:59,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2440 to 2337. [2022-01-17 23:24:59,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2337 states, 2336 states have (on average 2.533818493150685) internal successors, (5919), 2336 states have internal predecessors, (5919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:59,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2337 states to 2337 states and 5919 transitions. [2022-01-17 23:24:59,031 INFO L78 Accepts]: Start accepts. Automaton has 2337 states and 5919 transitions. Word has length 137 [2022-01-17 23:24:59,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:59,031 INFO L470 AbstractCegarLoop]: Abstraction has 2337 states and 5919 transitions. [2022-01-17 23:24:59,031 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:59,031 INFO L276 IsEmpty]: Start isEmpty. Operand 2337 states and 5919 transitions. [2022-01-17 23:24:59,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:24:59,033 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:59,033 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:59,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-01-17 23:24:59,033 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:24:59,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:59,034 INFO L85 PathProgramCache]: Analyzing trace with hash -2074546187, now seen corresponding path program 52 times [2022-01-17 23:24:59,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:59,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296654377] [2022-01-17 23:24:59,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:59,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:59,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:59,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:59,756 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:59,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296654377] [2022-01-17 23:24:59,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296654377] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:59,756 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:59,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-17 23:24:59,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89965041] [2022-01-17 23:24:59,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:59,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-17 23:24:59,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:59,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-17 23:24:59,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2022-01-17 23:24:59,757 INFO L87 Difference]: Start difference. First operand 2337 states and 5919 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:01,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:01,909 INFO L93 Difference]: Finished difference Result 2519 states and 6260 transitions. [2022-01-17 23:25:01,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:25:01,909 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:25:01,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:01,912 INFO L225 Difference]: With dead ends: 2519 [2022-01-17 23:25:01,912 INFO L226 Difference]: Without dead ends: 2381 [2022-01-17 23:25:01,913 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=518, Invalid=2344, Unknown=0, NotChecked=0, Total=2862 [2022-01-17 23:25:01,913 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 1016 mSDsluCounter, 2104 mSDsCounter, 0 mSdLazyCounter, 1309 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1016 SdHoareTripleChecker+Valid, 2170 SdHoareTripleChecker+Invalid, 1399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 1309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:01,913 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1016 Valid, 2170 Invalid, 1399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 1309 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:25:01,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2381 states. [2022-01-17 23:25:01,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2381 to 2335. [2022-01-17 23:25:01,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2335 states, 2334 states have (on average 2.533847472150814) internal successors, (5914), 2334 states have internal predecessors, (5914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:01,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2335 states to 2335 states and 5914 transitions. [2022-01-17 23:25:01,934 INFO L78 Accepts]: Start accepts. Automaton has 2335 states and 5914 transitions. Word has length 137 [2022-01-17 23:25:01,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:01,934 INFO L470 AbstractCegarLoop]: Abstraction has 2335 states and 5914 transitions. [2022-01-17 23:25:01,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:01,934 INFO L276 IsEmpty]: Start isEmpty. Operand 2335 states and 5914 transitions. [2022-01-17 23:25:01,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:25:01,936 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:01,937 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:01,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-01-17 23:25:01,937 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:25:01,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:01,937 INFO L85 PathProgramCache]: Analyzing trace with hash -927392717, now seen corresponding path program 53 times [2022-01-17 23:25:01,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:01,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800164719] [2022-01-17 23:25:01,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:01,937 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:01,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:02,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:02,824 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:02,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800164719] [2022-01-17 23:25:02,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800164719] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:02,824 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:02,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2022-01-17 23:25:02,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801809562] [2022-01-17 23:25:02,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:02,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-01-17 23:25:02,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:02,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-01-17 23:25:02,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=911, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:25:02,825 INFO L87 Difference]: Start difference. First operand 2335 states and 5914 transitions. Second operand has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:05,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:05,252 INFO L93 Difference]: Finished difference Result 2531 states and 6278 transitions. [2022-01-17 23:25:05,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-17 23:25:05,252 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:25:05,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:05,255 INFO L225 Difference]: With dead ends: 2531 [2022-01-17 23:25:05,255 INFO L226 Difference]: Without dead ends: 2383 [2022-01-17 23:25:05,255 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 718 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=704, Invalid=3328, Unknown=0, NotChecked=0, Total=4032 [2022-01-17 23:25:05,255 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 1238 mSDsluCounter, 2370 mSDsCounter, 0 mSdLazyCounter, 1622 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1238 SdHoareTripleChecker+Valid, 2416 SdHoareTripleChecker+Invalid, 1741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 1622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:05,255 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1238 Valid, 2416 Invalid, 1741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 1622 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:25:05,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2383 states. [2022-01-17 23:25:05,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2383 to 2331. [2022-01-17 23:25:05,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2331 states, 2330 states have (on average 2.5330472103004293) internal successors, (5902), 2330 states have internal predecessors, (5902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:05,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2331 states to 2331 states and 5902 transitions. [2022-01-17 23:25:05,275 INFO L78 Accepts]: Start accepts. Automaton has 2331 states and 5902 transitions. Word has length 137 [2022-01-17 23:25:05,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:05,275 INFO L470 AbstractCegarLoop]: Abstraction has 2331 states and 5902 transitions. [2022-01-17 23:25:05,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:05,275 INFO L276 IsEmpty]: Start isEmpty. Operand 2331 states and 5902 transitions. [2022-01-17 23:25:05,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:25:05,277 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:05,277 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:05,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-01-17 23:25:05,277 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:25:05,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:05,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1580946151, now seen corresponding path program 54 times [2022-01-17 23:25:05,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:05,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752575900] [2022-01-17 23:25:05,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:05,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:05,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:06,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:06,191 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:06,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752575900] [2022-01-17 23:25:06,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752575900] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:06,191 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:06,191 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2022-01-17 23:25:06,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320080133] [2022-01-17 23:25:06,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:06,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-01-17 23:25:06,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:06,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-01-17 23:25:06,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=911, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:25:06,194 INFO L87 Difference]: Start difference. First operand 2331 states and 5902 transitions. Second operand has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:09,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:09,010 INFO L93 Difference]: Finished difference Result 2482 states and 6179 transitions. [2022-01-17 23:25:09,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-17 23:25:09,011 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:25:09,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:09,013 INFO L225 Difference]: With dead ends: 2482 [2022-01-17 23:25:09,013 INFO L226 Difference]: Without dead ends: 2371 [2022-01-17 23:25:09,014 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 707 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=704, Invalid=3328, Unknown=0, NotChecked=0, Total=4032 [2022-01-17 23:25:09,014 INFO L933 BasicCegarLoop]: 143 mSDtfsCounter, 1382 mSDsluCounter, 2134 mSDsCounter, 0 mSdLazyCounter, 1374 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1382 SdHoareTripleChecker+Valid, 2212 SdHoareTripleChecker+Invalid, 1499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 1374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:09,014 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1382 Valid, 2212 Invalid, 1499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 1374 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:25:09,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2371 states. [2022-01-17 23:25:09,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2371 to 2327. [2022-01-17 23:25:09,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2327 states, 2326 states have (on average 2.53396388650043) internal successors, (5894), 2326 states have internal predecessors, (5894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:09,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2327 states to 2327 states and 5894 transitions. [2022-01-17 23:25:09,039 INFO L78 Accepts]: Start accepts. Automaton has 2327 states and 5894 transitions. Word has length 137 [2022-01-17 23:25:09,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:09,039 INFO L470 AbstractCegarLoop]: Abstraction has 2327 states and 5894 transitions. [2022-01-17 23:25:09,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:09,039 INFO L276 IsEmpty]: Start isEmpty. Operand 2327 states and 5894 transitions. [2022-01-17 23:25:09,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:25:09,042 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:09,042 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:09,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-01-17 23:25:09,042 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:25:09,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:09,042 INFO L85 PathProgramCache]: Analyzing trace with hash 183310063, now seen corresponding path program 55 times [2022-01-17 23:25:09,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:09,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531482222] [2022-01-17 23:25:09,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:09,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:09,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:09,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:09,800 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:09,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531482222] [2022-01-17 23:25:09,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531482222] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:09,800 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:09,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-17 23:25:09,800 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043464806] [2022-01-17 23:25:09,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:09,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-17 23:25:09,800 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:09,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-17 23:25:09,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2022-01-17 23:25:09,801 INFO L87 Difference]: Start difference. First operand 2327 states and 5894 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:11,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:11,939 INFO L93 Difference]: Finished difference Result 2518 states and 6263 transitions. [2022-01-17 23:25:11,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:25:11,939 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:25:11,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:11,942 INFO L225 Difference]: With dead ends: 2518 [2022-01-17 23:25:11,942 INFO L226 Difference]: Without dead ends: 2409 [2022-01-17 23:25:11,943 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 471 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=508, Invalid=2354, Unknown=0, NotChecked=0, Total=2862 [2022-01-17 23:25:11,943 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 1010 mSDsluCounter, 2185 mSDsCounter, 0 mSdLazyCounter, 1293 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1010 SdHoareTripleChecker+Valid, 2267 SdHoareTripleChecker+Invalid, 1375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:11,943 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1010 Valid, 2267 Invalid, 1375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1293 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:25:11,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2409 states. [2022-01-17 23:25:11,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2409 to 2337. [2022-01-17 23:25:11,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2337 states, 2336 states have (on average 2.5329623287671232) internal successors, (5917), 2336 states have internal predecessors, (5917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:11,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2337 states to 2337 states and 5917 transitions. [2022-01-17 23:25:11,963 INFO L78 Accepts]: Start accepts. Automaton has 2337 states and 5917 transitions. Word has length 137 [2022-01-17 23:25:11,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:11,963 INFO L470 AbstractCegarLoop]: Abstraction has 2337 states and 5917 transitions. [2022-01-17 23:25:11,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:11,963 INFO L276 IsEmpty]: Start isEmpty. Operand 2337 states and 5917 transitions. [2022-01-17 23:25:11,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:25:11,965 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:11,965 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:11,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-01-17 23:25:11,965 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:25:11,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:11,965 INFO L85 PathProgramCache]: Analyzing trace with hash -379207133, now seen corresponding path program 56 times [2022-01-17 23:25:11,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:11,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985957069] [2022-01-17 23:25:11,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:11,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:12,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:12,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:12,623 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:12,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985957069] [2022-01-17 23:25:12,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985957069] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:12,623 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:12,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-17 23:25:12,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236670743] [2022-01-17 23:25:12,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:12,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-17 23:25:12,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:12,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-17 23:25:12,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2022-01-17 23:25:12,624 INFO L87 Difference]: Start difference. First operand 2337 states and 5917 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:14,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:14,234 INFO L93 Difference]: Finished difference Result 2478 states and 6173 transitions. [2022-01-17 23:25:14,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:25:14,234 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:25:14,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:14,237 INFO L225 Difference]: With dead ends: 2478 [2022-01-17 23:25:14,237 INFO L226 Difference]: Without dead ends: 2375 [2022-01-17 23:25:14,237 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=518, Invalid=2344, Unknown=0, NotChecked=0, Total=2862 [2022-01-17 23:25:14,237 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 970 mSDsluCounter, 1954 mSDsCounter, 0 mSdLazyCounter, 1165 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 970 SdHoareTripleChecker+Valid, 2041 SdHoareTripleChecker+Invalid, 1248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 1165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:14,237 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [970 Valid, 2041 Invalid, 1248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 1165 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:25:14,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2375 states. [2022-01-17 23:25:14,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2375 to 2335. [2022-01-17 23:25:14,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2335 states, 2334 states have (on average 2.5329905741216794) internal successors, (5912), 2334 states have internal predecessors, (5912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:14,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2335 states to 2335 states and 5912 transitions. [2022-01-17 23:25:14,257 INFO L78 Accepts]: Start accepts. Automaton has 2335 states and 5912 transitions. Word has length 137 [2022-01-17 23:25:14,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:14,257 INFO L470 AbstractCegarLoop]: Abstraction has 2335 states and 5912 transitions. [2022-01-17 23:25:14,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:14,257 INFO L276 IsEmpty]: Start isEmpty. Operand 2335 states and 5912 transitions. [2022-01-17 23:25:14,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:25:14,261 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:14,261 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:14,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-01-17 23:25:14,261 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:25:14,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:14,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1239168811, now seen corresponding path program 57 times [2022-01-17 23:25:14,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:14,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271064358] [2022-01-17 23:25:14,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:14,261 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:14,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:14,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:14,874 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:14,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271064358] [2022-01-17 23:25:14,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271064358] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:14,874 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:14,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-17 23:25:14,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619759008] [2022-01-17 23:25:14,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:14,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-17 23:25:14,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:14,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-17 23:25:14,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2022-01-17 23:25:14,875 INFO L87 Difference]: Start difference. First operand 2335 states and 5912 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:16,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:16,342 INFO L93 Difference]: Finished difference Result 2476 states and 6168 transitions. [2022-01-17 23:25:16,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:25:16,342 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:25:16,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:16,345 INFO L225 Difference]: With dead ends: 2476 [2022-01-17 23:25:16,345 INFO L226 Difference]: Without dead ends: 2363 [2022-01-17 23:25:16,346 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 441 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=498, Invalid=2258, Unknown=0, NotChecked=0, Total=2756 [2022-01-17 23:25:16,346 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 1108 mSDsluCounter, 2034 mSDsCounter, 0 mSdLazyCounter, 1250 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1108 SdHoareTripleChecker+Valid, 2117 SdHoareTripleChecker+Invalid, 1350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:16,346 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1108 Valid, 2117 Invalid, 1350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1250 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:25:16,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2363 states. [2022-01-17 23:25:16,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2363 to 2331. [2022-01-17 23:25:16,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2331 states, 2330 states have (on average 2.532188841201717) internal successors, (5900), 2330 states have internal predecessors, (5900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:16,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2331 states to 2331 states and 5900 transitions. [2022-01-17 23:25:16,365 INFO L78 Accepts]: Start accepts. Automaton has 2331 states and 5900 transitions. Word has length 137 [2022-01-17 23:25:16,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:16,365 INFO L470 AbstractCegarLoop]: Abstraction has 2331 states and 5900 transitions. [2022-01-17 23:25:16,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:16,366 INFO L276 IsEmpty]: Start isEmpty. Operand 2331 states and 5900 transitions. [2022-01-17 23:25:16,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:25:16,368 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:16,368 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:16,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-01-17 23:25:16,368 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:25:16,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:16,368 INFO L85 PathProgramCache]: Analyzing trace with hash 244800887, now seen corresponding path program 58 times [2022-01-17 23:25:16,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:16,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294727346] [2022-01-17 23:25:16,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:16,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:16,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:17,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:17,175 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:17,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294727346] [2022-01-17 23:25:17,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294727346] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:17,175 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:17,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:25:17,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613257133] [2022-01-17 23:25:17,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:17,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:25:17,176 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:17,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:25:17,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=733, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:25:17,177 INFO L87 Difference]: Start difference. First operand 2331 states and 5900 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:18,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:18,790 INFO L93 Difference]: Finished difference Result 2497 states and 6209 transitions. [2022-01-17 23:25:18,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:25:18,790 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:25:18,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:18,793 INFO L225 Difference]: With dead ends: 2497 [2022-01-17 23:25:18,793 INFO L226 Difference]: Without dead ends: 2343 [2022-01-17 23:25:18,793 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 518 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=513, Invalid=2349, Unknown=0, NotChecked=0, Total=2862 [2022-01-17 23:25:18,794 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 987 mSDsluCounter, 2320 mSDsCounter, 0 mSdLazyCounter, 1410 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 987 SdHoareTripleChecker+Valid, 2370 SdHoareTripleChecker+Invalid, 1494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 1410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:18,794 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [987 Valid, 2370 Invalid, 1494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 1410 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:25:18,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2343 states. [2022-01-17 23:25:18,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2343 to 2319. [2022-01-17 23:25:18,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2319 states, 2318 states have (on average 2.5362381363244175) internal successors, (5879), 2318 states have internal predecessors, (5879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:18,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2319 states to 2319 states and 5879 transitions. [2022-01-17 23:25:18,815 INFO L78 Accepts]: Start accepts. Automaton has 2319 states and 5879 transitions. Word has length 137 [2022-01-17 23:25:18,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:18,815 INFO L470 AbstractCegarLoop]: Abstraction has 2319 states and 5879 transitions. [2022-01-17 23:25:18,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:18,815 INFO L276 IsEmpty]: Start isEmpty. Operand 2319 states and 5879 transitions. [2022-01-17 23:25:18,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:25:18,817 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:18,818 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:18,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-01-17 23:25:18,818 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:25:18,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:18,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1302344985, now seen corresponding path program 59 times [2022-01-17 23:25:18,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:18,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774866636] [2022-01-17 23:25:18,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:18,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:18,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:19,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:19,467 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:19,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774866636] [2022-01-17 23:25:19,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774866636] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:19,467 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:19,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:25:19,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85464803] [2022-01-17 23:25:19,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:19,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:25:19,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:19,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:25:19,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=732, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:25:19,468 INFO L87 Difference]: Start difference. First operand 2319 states and 5879 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:21,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:21,149 INFO L93 Difference]: Finished difference Result 2767 states and 6878 transitions. [2022-01-17 23:25:21,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:25:21,149 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:25:21,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:21,152 INFO L225 Difference]: With dead ends: 2767 [2022-01-17 23:25:21,152 INFO L226 Difference]: Without dead ends: 2618 [2022-01-17 23:25:21,152 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 554 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=522, Invalid=2448, Unknown=0, NotChecked=0, Total=2970 [2022-01-17 23:25:21,152 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 1041 mSDsluCounter, 2518 mSDsCounter, 0 mSdLazyCounter, 1491 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1041 SdHoareTripleChecker+Valid, 2574 SdHoareTripleChecker+Invalid, 1590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:21,153 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1041 Valid, 2574 Invalid, 1590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1491 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:25:21,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2618 states. [2022-01-17 23:25:21,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2618 to 2345. [2022-01-17 23:25:21,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2345 states, 2344 states have (on average 2.5379692832764507) internal successors, (5949), 2344 states have internal predecessors, (5949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:21,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2345 states to 2345 states and 5949 transitions. [2022-01-17 23:25:21,174 INFO L78 Accepts]: Start accepts. Automaton has 2345 states and 5949 transitions. Word has length 137 [2022-01-17 23:25:21,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:21,174 INFO L470 AbstractCegarLoop]: Abstraction has 2345 states and 5949 transitions. [2022-01-17 23:25:21,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:21,174 INFO L276 IsEmpty]: Start isEmpty. Operand 2345 states and 5949 transitions. [2022-01-17 23:25:21,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:25:21,176 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:21,176 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:21,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-01-17 23:25:21,177 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:25:21,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:21,177 INFO L85 PathProgramCache]: Analyzing trace with hash 514697973, now seen corresponding path program 60 times [2022-01-17 23:25:21,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:21,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746696862] [2022-01-17 23:25:21,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:21,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:21,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:22,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:22,030 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:22,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746696862] [2022-01-17 23:25:22,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746696862] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:22,031 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:22,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-17 23:25:22,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799758942] [2022-01-17 23:25:22,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:22,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-17 23:25:22,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:22,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-17 23:25:22,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=842, Unknown=0, NotChecked=0, Total=930 [2022-01-17 23:25:22,032 INFO L87 Difference]: Start difference. First operand 2345 states and 5949 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:23,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:23,591 INFO L93 Difference]: Finished difference Result 2697 states and 6728 transitions. [2022-01-17 23:25:23,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:25:23,591 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:25:23,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:23,594 INFO L225 Difference]: With dead ends: 2697 [2022-01-17 23:25:23,594 INFO L226 Difference]: Without dead ends: 2559 [2022-01-17 23:25:23,594 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 622 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=559, Invalid=2633, Unknown=0, NotChecked=0, Total=3192 [2022-01-17 23:25:23,600 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 1083 mSDsluCounter, 2132 mSDsCounter, 0 mSdLazyCounter, 1271 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1083 SdHoareTripleChecker+Valid, 2207 SdHoareTripleChecker+Invalid, 1375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 1271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:23,601 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1083 Valid, 2207 Invalid, 1375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 1271 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:25:23,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2559 states. [2022-01-17 23:25:23,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2559 to 2343. [2022-01-17 23:25:23,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2343 states, 2342 states have (on average 2.53800170794193) internal successors, (5944), 2342 states have internal predecessors, (5944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:23,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2343 states to 2343 states and 5944 transitions. [2022-01-17 23:25:23,624 INFO L78 Accepts]: Start accepts. Automaton has 2343 states and 5944 transitions. Word has length 137 [2022-01-17 23:25:23,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:23,624 INFO L470 AbstractCegarLoop]: Abstraction has 2343 states and 5944 transitions. [2022-01-17 23:25:23,624 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:23,624 INFO L276 IsEmpty]: Start isEmpty. Operand 2343 states and 5944 transitions. [2022-01-17 23:25:23,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:25:23,626 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:23,626 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:23,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-01-17 23:25:23,626 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:25:23,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:23,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1661851443, now seen corresponding path program 61 times [2022-01-17 23:25:23,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:23,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71719950] [2022-01-17 23:25:23,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:23,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:23,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:24,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:24,361 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:24,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71719950] [2022-01-17 23:25:24,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71719950] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:24,362 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:24,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-17 23:25:24,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291057976] [2022-01-17 23:25:24,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:24,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-17 23:25:24,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:24,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-17 23:25:24,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=795, Unknown=0, NotChecked=0, Total=870 [2022-01-17 23:25:24,362 INFO L87 Difference]: Start difference. First operand 2343 states and 5944 transitions. Second operand has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:25,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:25,865 INFO L93 Difference]: Finished difference Result 2709 states and 6746 transitions. [2022-01-17 23:25:25,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:25:25,865 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:25:25,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:25,868 INFO L225 Difference]: With dead ends: 2709 [2022-01-17 23:25:25,868 INFO L226 Difference]: Without dead ends: 2561 [2022-01-17 23:25:25,869 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 492 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=522, Invalid=2448, Unknown=0, NotChecked=0, Total=2970 [2022-01-17 23:25:25,869 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 1153 mSDsluCounter, 2068 mSDsCounter, 0 mSdLazyCounter, 1285 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1153 SdHoareTripleChecker+Valid, 2147 SdHoareTripleChecker+Invalid, 1400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 1285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:25,869 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1153 Valid, 2147 Invalid, 1400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 1285 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:25:25,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2022-01-17 23:25:25,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 2339. [2022-01-17 23:25:25,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2339 states, 2338 states have (on average 2.5372112917023095) internal successors, (5932), 2338 states have internal predecessors, (5932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:25,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2339 states to 2339 states and 5932 transitions. [2022-01-17 23:25:25,889 INFO L78 Accepts]: Start accepts. Automaton has 2339 states and 5932 transitions. Word has length 137 [2022-01-17 23:25:25,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:25,889 INFO L470 AbstractCegarLoop]: Abstraction has 2339 states and 5932 transitions. [2022-01-17 23:25:25,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:25,890 INFO L276 IsEmpty]: Start isEmpty. Operand 2339 states and 5932 transitions. [2022-01-17 23:25:25,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:25:25,891 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:25,892 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:25,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-01-17 23:25:25,892 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:25:25,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:25,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1008298009, now seen corresponding path program 62 times [2022-01-17 23:25:25,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:25,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293291097] [2022-01-17 23:25:25,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:25,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:25,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:26,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:26,425 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:26,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293291097] [2022-01-17 23:25:26,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293291097] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:26,425 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:26,425 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-17 23:25:26,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121912207] [2022-01-17 23:25:26,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:26,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-17 23:25:26,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:26,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-17 23:25:26,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2022-01-17 23:25:26,426 INFO L87 Difference]: Start difference. First operand 2339 states and 5932 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:28,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:28,077 INFO L93 Difference]: Finished difference Result 2660 states and 6647 transitions. [2022-01-17 23:25:28,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:25:28,077 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:25:28,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:28,080 INFO L225 Difference]: With dead ends: 2660 [2022-01-17 23:25:28,080 INFO L226 Difference]: Without dead ends: 2549 [2022-01-17 23:25:28,080 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=498, Invalid=2258, Unknown=0, NotChecked=0, Total=2756 [2022-01-17 23:25:28,081 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 1266 mSDsluCounter, 1981 mSDsCounter, 0 mSdLazyCounter, 1167 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1266 SdHoareTripleChecker+Valid, 2081 SdHoareTripleChecker+Invalid, 1281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 1167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:28,081 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1266 Valid, 2081 Invalid, 1281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 1167 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:25:28,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2549 states. [2022-01-17 23:25:28,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2549 to 2335. [2022-01-17 23:25:28,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2335 states, 2334 states have (on average 2.538131962296487) internal successors, (5924), 2334 states have internal predecessors, (5924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:28,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2335 states to 2335 states and 5924 transitions. [2022-01-17 23:25:28,102 INFO L78 Accepts]: Start accepts. Automaton has 2335 states and 5924 transitions. Word has length 137 [2022-01-17 23:25:28,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:28,103 INFO L470 AbstractCegarLoop]: Abstraction has 2335 states and 5924 transitions. [2022-01-17 23:25:28,103 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:28,103 INFO L276 IsEmpty]: Start isEmpty. Operand 2335 states and 5924 transitions. [2022-01-17 23:25:28,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:25:28,105 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:28,105 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:28,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-01-17 23:25:28,105 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:25:28,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:28,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1522413073, now seen corresponding path program 63 times [2022-01-17 23:25:28,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:28,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807889574] [2022-01-17 23:25:28,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:28,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:28,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:28,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:28,980 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:28,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807889574] [2022-01-17 23:25:28,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807889574] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:28,980 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:28,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-17 23:25:28,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320238046] [2022-01-17 23:25:28,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:28,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-17 23:25:28,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:28,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-17 23:25:28,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=842, Unknown=0, NotChecked=0, Total=930 [2022-01-17 23:25:28,981 INFO L87 Difference]: Start difference. First operand 2335 states and 5924 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:30,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:30,991 INFO L93 Difference]: Finished difference Result 2702 states and 6746 transitions. [2022-01-17 23:25:30,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:25:30,991 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:25:30,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:30,994 INFO L225 Difference]: With dead ends: 2702 [2022-01-17 23:25:30,994 INFO L226 Difference]: Without dead ends: 2593 [2022-01-17 23:25:30,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 628 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=546, Invalid=2646, Unknown=0, NotChecked=0, Total=3192 [2022-01-17 23:25:30,995 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 948 mSDsluCounter, 2370 mSDsCounter, 0 mSdLazyCounter, 1371 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 948 SdHoareTripleChecker+Valid, 2459 SdHoareTripleChecker+Invalid, 1458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 1371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:30,995 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [948 Valid, 2459 Invalid, 1458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 1371 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:25:30,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2593 states. [2022-01-17 23:25:31,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2593 to 2345. [2022-01-17 23:25:31,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2345 states, 2344 states have (on average 2.5371160409556315) internal successors, (5947), 2344 states have internal predecessors, (5947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:31,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2345 states to 2345 states and 5947 transitions. [2022-01-17 23:25:31,015 INFO L78 Accepts]: Start accepts. Automaton has 2345 states and 5947 transitions. Word has length 137 [2022-01-17 23:25:31,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:31,015 INFO L470 AbstractCegarLoop]: Abstraction has 2345 states and 5947 transitions. [2022-01-17 23:25:31,016 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:31,019 INFO L276 IsEmpty]: Start isEmpty. Operand 2345 states and 5947 transitions. [2022-01-17 23:25:31,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:25:31,021 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:31,021 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:31,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-01-17 23:25:31,021 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:25:31,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:31,022 INFO L85 PathProgramCache]: Analyzing trace with hash -2084930269, now seen corresponding path program 64 times [2022-01-17 23:25:31,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:31,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189944566] [2022-01-17 23:25:31,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:31,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:31,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:31,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:31,727 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:31,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189944566] [2022-01-17 23:25:31,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189944566] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:31,728 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:31,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-17 23:25:31,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112477366] [2022-01-17 23:25:31,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:31,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-17 23:25:31,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:31,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-17 23:25:31,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2022-01-17 23:25:31,728 INFO L87 Difference]: Start difference. First operand 2345 states and 5947 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:33,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:33,739 INFO L93 Difference]: Finished difference Result 2662 states and 6656 transitions. [2022-01-17 23:25:33,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:25:33,739 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:25:33,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:33,742 INFO L225 Difference]: With dead ends: 2662 [2022-01-17 23:25:33,742 INFO L226 Difference]: Without dead ends: 2559 [2022-01-17 23:25:33,743 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 466 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=518, Invalid=2344, Unknown=0, NotChecked=0, Total=2862 [2022-01-17 23:25:33,743 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 992 mSDsluCounter, 2366 mSDsCounter, 0 mSdLazyCounter, 1356 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 992 SdHoareTripleChecker+Valid, 2453 SdHoareTripleChecker+Invalid, 1444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:33,743 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [992 Valid, 2453 Invalid, 1444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1356 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:25:33,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2559 states. [2022-01-17 23:25:33,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2559 to 2343. [2022-01-17 23:25:33,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2343 states, 2342 states have (on average 2.5371477369769426) internal successors, (5942), 2342 states have internal predecessors, (5942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:33,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2343 states to 2343 states and 5942 transitions. [2022-01-17 23:25:33,763 INFO L78 Accepts]: Start accepts. Automaton has 2343 states and 5942 transitions. Word has length 137 [2022-01-17 23:25:33,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:33,763 INFO L470 AbstractCegarLoop]: Abstraction has 2343 states and 5942 transitions. [2022-01-17 23:25:33,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:33,763 INFO L276 IsEmpty]: Start isEmpty. Operand 2343 states and 5942 transitions. [2022-01-17 23:25:33,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:25:33,765 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:33,765 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:33,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2022-01-17 23:25:33,766 INFO L402 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:25:33,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:33,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1350075349, now seen corresponding path program 65 times [2022-01-17 23:25:33,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:33,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827519103] [2022-01-17 23:25:33,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:33,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:33,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:34,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:34,410 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:34,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827519103] [2022-01-17 23:25:34,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827519103] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:34,410 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:34,411 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:25:34,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337610343] [2022-01-17 23:25:34,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:34,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:25:34,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:34,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:25:34,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=732, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:25:34,412 INFO L87 Difference]: Start difference. First operand 2343 states and 5942 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:35,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:35,854 INFO L93 Difference]: Finished difference Result 2674 states and 6674 transitions. [2022-01-17 23:25:35,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:25:35,855 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:25:35,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:35,858 INFO L225 Difference]: With dead ends: 2674 [2022-01-17 23:25:35,858 INFO L226 Difference]: Without dead ends: 2561 [2022-01-17 23:25:35,858 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 524 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=513, Invalid=2349, Unknown=0, NotChecked=0, Total=2862 [2022-01-17 23:25:35,858 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 962 mSDsluCounter, 2144 mSDsCounter, 0 mSdLazyCounter, 1270 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 962 SdHoareTripleChecker+Valid, 2240 SdHoareTripleChecker+Invalid, 1365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:35,858 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [962 Valid, 2240 Invalid, 1365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 1270 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:25:35,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2022-01-17 23:25:35,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 2339. [2022-01-17 23:25:35,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2339 states, 2338 states have (on average 2.536355859709153) internal successors, (5930), 2338 states have internal predecessors, (5930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:35,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2339 states to 2339 states and 5930 transitions. [2022-01-17 23:25:35,879 INFO L78 Accepts]: Start accepts. Automaton has 2339 states and 5930 transitions. Word has length 137 [2022-01-17 23:25:35,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:35,879 INFO L470 AbstractCegarLoop]: Abstraction has 2339 states and 5930 transitions. [2022-01-17 23:25:35,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:35,879 INFO L276 IsEmpty]: Start isEmpty. Operand 2339 states and 5930 transitions. [2022-01-17 23:25:35,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:25:35,881 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:35,881 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:35,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2022-01-17 23:25:35,881 INFO L402 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:25:35,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:35,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1460922249, now seen corresponding path program 66 times [2022-01-17 23:25:35,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:35,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31668907] [2022-01-17 23:25:35,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:35,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:35,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:36,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:36,482 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:36,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31668907] [2022-01-17 23:25:36,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31668907] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:36,482 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:36,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-17 23:25:36,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4125225] [2022-01-17 23:25:36,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:36,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-17 23:25:36,482 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:36,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-17 23:25:36,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2022-01-17 23:25:36,488 INFO L87 Difference]: Start difference. First operand 2339 states and 5930 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:38,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:38,340 INFO L93 Difference]: Finished difference Result 2695 states and 6715 transitions. [2022-01-17 23:25:38,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:25:38,340 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:25:38,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:38,343 INFO L225 Difference]: With dead ends: 2695 [2022-01-17 23:25:38,343 INFO L226 Difference]: Without dead ends: 2547 [2022-01-17 23:25:38,343 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=498, Invalid=2258, Unknown=0, NotChecked=0, Total=2756 [2022-01-17 23:25:38,344 INFO L933 BasicCegarLoop]: 159 mSDtfsCounter, 864 mSDsluCounter, 2448 mSDsCounter, 0 mSdLazyCounter, 1498 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 864 SdHoareTripleChecker+Valid, 2513 SdHoareTripleChecker+Invalid, 1584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:38,344 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [864 Valid, 2513 Invalid, 1584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 1498 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:25:38,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2547 states. [2022-01-17 23:25:38,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2547 to 2333. [2022-01-17 23:25:38,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2333 states, 2332 states have (on average 2.5385934819897082) internal successors, (5920), 2332 states have internal predecessors, (5920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:38,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2333 states to 2333 states and 5920 transitions. [2022-01-17 23:25:38,366 INFO L78 Accepts]: Start accepts. Automaton has 2333 states and 5920 transitions. Word has length 137 [2022-01-17 23:25:38,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:38,366 INFO L470 AbstractCegarLoop]: Abstraction has 2333 states and 5920 transitions. [2022-01-17 23:25:38,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:38,366 INFO L276 IsEmpty]: Start isEmpty. Operand 2333 states and 5920 transitions. [2022-01-17 23:25:38,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:25:38,368 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:38,368 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:38,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2022-01-17 23:25:38,368 INFO L402 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:25:38,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:38,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1793036647, now seen corresponding path program 67 times [2022-01-17 23:25:38,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:38,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519565112] [2022-01-17 23:25:38,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:38,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:38,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:39,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:39,020 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:39,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519565112] [2022-01-17 23:25:39,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519565112] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:39,020 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:39,020 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-17 23:25:39,020 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73161564] [2022-01-17 23:25:39,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:39,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-17 23:25:39,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:39,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-17 23:25:39,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2022-01-17 23:25:39,021 INFO L87 Difference]: Start difference. First operand 2333 states and 5920 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:40,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:40,983 INFO L93 Difference]: Finished difference Result 2827 states and 7021 transitions. [2022-01-17 23:25:40,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:25:40,983 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:25:40,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:40,986 INFO L225 Difference]: With dead ends: 2827 [2022-01-17 23:25:40,986 INFO L226 Difference]: Without dead ends: 2678 [2022-01-17 23:25:40,986 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 473 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=508, Invalid=2354, Unknown=0, NotChecked=0, Total=2862 [2022-01-17 23:25:40,986 INFO L933 BasicCegarLoop]: 172 mSDtfsCounter, 1004 mSDsluCounter, 2374 mSDsCounter, 0 mSdLazyCounter, 1411 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1004 SdHoareTripleChecker+Valid, 2453 SdHoareTripleChecker+Invalid, 1506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:40,986 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1004 Valid, 2453 Invalid, 1506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 1411 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:25:40,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2678 states. [2022-01-17 23:25:41,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2678 to 2399. [2022-01-17 23:25:41,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2399 states, 2398 states have (on average 2.54837364470392) internal successors, (6111), 2398 states have internal predecessors, (6111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:41,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2399 states to 2399 states and 6111 transitions. [2022-01-17 23:25:41,008 INFO L78 Accepts]: Start accepts. Automaton has 2399 states and 6111 transitions. Word has length 137 [2022-01-17 23:25:41,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:41,008 INFO L470 AbstractCegarLoop]: Abstraction has 2399 states and 6111 transitions. [2022-01-17 23:25:41,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:41,008 INFO L276 IsEmpty]: Start isEmpty. Operand 2399 states and 6111 transitions. [2022-01-17 23:25:41,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:25:41,010 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:41,010 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:41,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2022-01-17 23:25:41,010 INFO L402 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:25:41,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:41,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1714283637, now seen corresponding path program 68 times [2022-01-17 23:25:41,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:41,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924860577] [2022-01-17 23:25:41,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:41,011 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:41,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:41,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:41,675 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:41,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924860577] [2022-01-17 23:25:41,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924860577] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:41,675 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:41,675 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:25:41,675 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729072209] [2022-01-17 23:25:41,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:41,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:25:41,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:41,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:25:41,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=731, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:25:41,676 INFO L87 Difference]: Start difference. First operand 2399 states and 6111 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:43,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:43,762 INFO L93 Difference]: Finished difference Result 2757 states and 6871 transitions. [2022-01-17 23:25:43,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:25:43,762 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:25:43,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:43,765 INFO L225 Difference]: With dead ends: 2757 [2022-01-17 23:25:43,765 INFO L226 Difference]: Without dead ends: 2619 [2022-01-17 23:25:43,766 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 552 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=533, Invalid=2437, Unknown=0, NotChecked=0, Total=2970 [2022-01-17 23:25:43,766 INFO L933 BasicCegarLoop]: 167 mSDtfsCounter, 1007 mSDsluCounter, 2156 mSDsCounter, 0 mSdLazyCounter, 1269 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1007 SdHoareTripleChecker+Valid, 2245 SdHoareTripleChecker+Invalid, 1371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:43,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1007 Valid, 2245 Invalid, 1371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1269 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:25:43,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2619 states. [2022-01-17 23:25:43,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2619 to 2397. [2022-01-17 23:25:43,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2397 states, 2396 states have (on average 2.548414023372287) internal successors, (6106), 2396 states have internal predecessors, (6106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:43,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2397 states to 2397 states and 6106 transitions. [2022-01-17 23:25:43,788 INFO L78 Accepts]: Start accepts. Automaton has 2397 states and 6106 transitions. Word has length 137 [2022-01-17 23:25:43,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:43,788 INFO L470 AbstractCegarLoop]: Abstraction has 2397 states and 6106 transitions. [2022-01-17 23:25:43,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:43,788 INFO L276 IsEmpty]: Start isEmpty. Operand 2397 states and 6106 transitions. [2022-01-17 23:25:43,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:25:43,790 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:43,790 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:43,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2022-01-17 23:25:43,790 INFO L402 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:25:43,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:43,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1433530189, now seen corresponding path program 69 times [2022-01-17 23:25:43,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:43,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781654540] [2022-01-17 23:25:43,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:43,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:43,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:44,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:44,506 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:44,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781654540] [2022-01-17 23:25:44,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781654540] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:44,507 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:44,507 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-17 23:25:44,507 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485416609] [2022-01-17 23:25:44,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:44,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-17 23:25:44,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:44,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-17 23:25:44,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2022-01-17 23:25:44,507 INFO L87 Difference]: Start difference. First operand 2397 states and 6106 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:46,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:46,491 INFO L93 Difference]: Finished difference Result 2769 states and 6889 transitions. [2022-01-17 23:25:46,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:25:46,491 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:25:46,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:46,494 INFO L225 Difference]: With dead ends: 2769 [2022-01-17 23:25:46,494 INFO L226 Difference]: Without dead ends: 2621 [2022-01-17 23:25:46,495 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 443 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=498, Invalid=2258, Unknown=0, NotChecked=0, Total=2756 [2022-01-17 23:25:46,495 INFO L933 BasicCegarLoop]: 167 mSDtfsCounter, 1031 mSDsluCounter, 2010 mSDsCounter, 0 mSdLazyCounter, 1238 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1031 SdHoareTripleChecker+Valid, 2104 SdHoareTripleChecker+Invalid, 1344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 1238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:46,495 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1031 Valid, 2104 Invalid, 1344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 1238 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:25:46,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2621 states. [2022-01-17 23:25:46,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2621 to 2393. [2022-01-17 23:25:46,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2393 states, 2392 states have (on average 2.5464046822742477) internal successors, (6091), 2392 states have internal predecessors, (6091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:46,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2393 states to 2393 states and 6091 transitions. [2022-01-17 23:25:46,516 INFO L78 Accepts]: Start accepts. Automaton has 2393 states and 6091 transitions. Word has length 137 [2022-01-17 23:25:46,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:46,516 INFO L470 AbstractCegarLoop]: Abstraction has 2393 states and 6091 transitions. [2022-01-17 23:25:46,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:46,517 INFO L276 IsEmpty]: Start isEmpty. Operand 2393 states and 6091 transitions. [2022-01-17 23:25:46,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:25:46,519 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:46,519 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:46,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2022-01-17 23:25:46,519 INFO L402 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:25:46,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:46,519 INFO L85 PathProgramCache]: Analyzing trace with hash -2087083623, now seen corresponding path program 70 times [2022-01-17 23:25:46,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:46,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152977974] [2022-01-17 23:25:46,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:46,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:46,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:47,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:47,326 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:47,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152977974] [2022-01-17 23:25:47,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152977974] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:47,326 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:47,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-17 23:25:47,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6268443] [2022-01-17 23:25:47,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:47,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-17 23:25:47,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:47,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-17 23:25:47,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2022-01-17 23:25:47,326 INFO L87 Difference]: Start difference. First operand 2393 states and 6091 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:48,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:48,944 INFO L93 Difference]: Finished difference Result 2720 states and 6787 transitions. [2022-01-17 23:25:48,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:25:48,944 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:25:48,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:48,947 INFO L225 Difference]: With dead ends: 2720 [2022-01-17 23:25:48,947 INFO L226 Difference]: Without dead ends: 2609 [2022-01-17 23:25:48,947 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 396 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=496, Invalid=2260, Unknown=0, NotChecked=0, Total=2756 [2022-01-17 23:25:48,948 INFO L933 BasicCegarLoop]: 162 mSDtfsCounter, 1181 mSDsluCounter, 2189 mSDsCounter, 0 mSdLazyCounter, 1275 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1181 SdHoareTripleChecker+Valid, 2291 SdHoareTripleChecker+Invalid, 1388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:48,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1181 Valid, 2291 Invalid, 1388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1275 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:25:48,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2609 states. [2022-01-17 23:25:48,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2609 to 2389. [2022-01-17 23:25:48,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2389 states, 2388 states have (on average 2.5477386934673367) internal successors, (6084), 2388 states have internal predecessors, (6084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:48,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2389 states to 2389 states and 6084 transitions. [2022-01-17 23:25:48,968 INFO L78 Accepts]: Start accepts. Automaton has 2389 states and 6084 transitions. Word has length 137 [2022-01-17 23:25:48,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:48,969 INFO L470 AbstractCegarLoop]: Abstraction has 2389 states and 6084 transitions. [2022-01-17 23:25:48,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:48,969 INFO L276 IsEmpty]: Start isEmpty. Operand 2389 states and 6084 transitions. [2022-01-17 23:25:48,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:25:48,971 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:48,971 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:48,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2022-01-17 23:25:48,971 INFO L402 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:25:48,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:48,971 INFO L85 PathProgramCache]: Analyzing trace with hash 2128871065, now seen corresponding path program 71 times [2022-01-17 23:25:48,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:48,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599560252] [2022-01-17 23:25:48,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:48,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:49,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:49,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:49,558 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:49,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599560252] [2022-01-17 23:25:49,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599560252] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:49,558 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:49,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:25:49,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966153994] [2022-01-17 23:25:49,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:49,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:25:49,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:49,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:25:49,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=727, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:25:49,558 INFO L87 Difference]: Start difference. First operand 2389 states and 6084 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:51,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:51,606 INFO L93 Difference]: Finished difference Result 3157 states and 7885 transitions. [2022-01-17 23:25:51,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-17 23:25:51,606 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:25:51,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:51,610 INFO L225 Difference]: With dead ends: 3157 [2022-01-17 23:25:51,610 INFO L226 Difference]: Without dead ends: 3008 [2022-01-17 23:25:51,610 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 581 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=544, Invalid=2536, Unknown=0, NotChecked=0, Total=3080 [2022-01-17 23:25:51,611 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 1011 mSDsluCounter, 2934 mSDsCounter, 0 mSdLazyCounter, 1658 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1011 SdHoareTripleChecker+Valid, 3021 SdHoareTripleChecker+Invalid, 1757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:51,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1011 Valid, 3021 Invalid, 1757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1658 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:25:51,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3008 states. [2022-01-17 23:25:51,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3008 to 2473. [2022-01-17 23:25:51,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2473 states, 2472 states have (on average 2.55542071197411) internal successors, (6317), 2472 states have internal predecessors, (6317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:51,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2473 states to 2473 states and 6317 transitions. [2022-01-17 23:25:51,633 INFO L78 Accepts]: Start accepts. Automaton has 2473 states and 6317 transitions. Word has length 137 [2022-01-17 23:25:51,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:51,634 INFO L470 AbstractCegarLoop]: Abstraction has 2473 states and 6317 transitions. [2022-01-17 23:25:51,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:51,634 INFO L276 IsEmpty]: Start isEmpty. Operand 2473 states and 6317 transitions. [2022-01-17 23:25:51,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:25:51,636 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:51,636 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:51,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2022-01-17 23:25:51,636 INFO L402 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:25:51,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:51,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1109071953, now seen corresponding path program 72 times [2022-01-17 23:25:51,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:51,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632322009] [2022-01-17 23:25:51,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:51,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:51,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:52,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:52,325 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:52,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632322009] [2022-01-17 23:25:52,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632322009] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:52,326 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:52,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-17 23:25:52,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254360046] [2022-01-17 23:25:52,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:52,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-17 23:25:52,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:52,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-17 23:25:52,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=837, Unknown=0, NotChecked=0, Total=930 [2022-01-17 23:25:52,326 INFO L87 Difference]: Start difference. First operand 2473 states and 6317 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:54,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:54,205 INFO L93 Difference]: Finished difference Result 3371 states and 8451 transitions. [2022-01-17 23:25:54,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-17 23:25:54,206 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:25:54,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:54,210 INFO L225 Difference]: With dead ends: 3371 [2022-01-17 23:25:54,211 INFO L226 Difference]: Without dead ends: 3237 [2022-01-17 23:25:54,211 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 625 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=566, Invalid=2740, Unknown=0, NotChecked=0, Total=3306 [2022-01-17 23:25:54,211 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 1283 mSDsluCounter, 3115 mSDsCounter, 0 mSdLazyCounter, 1724 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1283 SdHoareTripleChecker+Valid, 3201 SdHoareTripleChecker+Invalid, 1861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 1724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:54,211 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1283 Valid, 3201 Invalid, 1861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 1724 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:25:54,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3237 states. [2022-01-17 23:25:54,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3237 to 2669. [2022-01-17 23:25:54,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2669 states, 2668 states have (on average 2.5513493253373314) internal successors, (6807), 2668 states have internal predecessors, (6807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:54,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2669 states to 2669 states and 6807 transitions. [2022-01-17 23:25:54,235 INFO L78 Accepts]: Start accepts. Automaton has 2669 states and 6807 transitions. Word has length 137 [2022-01-17 23:25:54,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:54,235 INFO L470 AbstractCegarLoop]: Abstraction has 2669 states and 6807 transitions. [2022-01-17 23:25:54,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:54,235 INFO L276 IsEmpty]: Start isEmpty. Operand 2669 states and 6807 transitions. [2022-01-17 23:25:54,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:25:54,238 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:54,238 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:54,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2022-01-17 23:25:54,238 INFO L402 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:25:54,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:54,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1461100399, now seen corresponding path program 73 times [2022-01-17 23:25:54,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:54,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995393523] [2022-01-17 23:25:54,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:54,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:54,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:55,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:55,109 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:55,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995393523] [2022-01-17 23:25:55,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995393523] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:55,110 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:55,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-17 23:25:55,110 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028066145] [2022-01-17 23:25:55,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:55,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-17 23:25:55,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:55,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-17 23:25:55,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=836, Unknown=0, NotChecked=0, Total=930 [2022-01-17 23:25:55,110 INFO L87 Difference]: Start difference. First operand 2669 states and 6807 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:57,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:57,089 INFO L93 Difference]: Finished difference Result 3635 states and 9041 transitions. [2022-01-17 23:25:57,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-17 23:25:57,089 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:25:57,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:57,093 INFO L225 Difference]: With dead ends: 3635 [2022-01-17 23:25:57,093 INFO L226 Difference]: Without dead ends: 2982 [2022-01-17 23:25:57,093 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 733 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=641, Invalid=3141, Unknown=0, NotChecked=0, Total=3782 [2022-01-17 23:25:57,093 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 1399 mSDsluCounter, 3082 mSDsCounter, 0 mSdLazyCounter, 1496 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1399 SdHoareTripleChecker+Valid, 3210 SdHoareTripleChecker+Invalid, 1652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 1496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:57,093 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1399 Valid, 3210 Invalid, 1652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [156 Valid, 1496 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:25:57,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2982 states. [2022-01-17 23:25:57,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2982 to 2403. [2022-01-17 23:25:57,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2403 states, 2402 states have (on average 2.5445462114904247) internal successors, (6112), 2402 states have internal predecessors, (6112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:57,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2403 states to 2403 states and 6112 transitions. [2022-01-17 23:25:57,116 INFO L78 Accepts]: Start accepts. Automaton has 2403 states and 6112 transitions. Word has length 137 [2022-01-17 23:25:57,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:57,116 INFO L470 AbstractCegarLoop]: Abstraction has 2403 states and 6112 transitions. [2022-01-17 23:25:57,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:57,116 INFO L276 IsEmpty]: Start isEmpty. Operand 2403 states and 6112 transitions. [2022-01-17 23:25:57,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:25:57,118 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:57,118 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:57,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2022-01-17 23:25:57,118 INFO L402 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:25:57,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:57,118 INFO L85 PathProgramCache]: Analyzing trace with hash 910761335, now seen corresponding path program 74 times [2022-01-17 23:25:57,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:57,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426201900] [2022-01-17 23:25:57,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:57,119 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:57,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:57,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:57,754 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:57,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426201900] [2022-01-17 23:25:57,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426201900] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:57,754 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:57,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-17 23:25:57,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338831408] [2022-01-17 23:25:57,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:57,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-17 23:25:57,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:57,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-17 23:25:57,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2022-01-17 23:25:57,755 INFO L87 Difference]: Start difference. First operand 2403 states and 6112 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:59,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:59,377 INFO L93 Difference]: Finished difference Result 2823 states and 6994 transitions. [2022-01-17 23:25:59,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-17 23:25:59,377 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:25:59,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:59,380 INFO L225 Difference]: With dead ends: 2823 [2022-01-17 23:25:59,380 INFO L226 Difference]: Without dead ends: 2674 [2022-01-17 23:25:59,380 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 520 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=551, Invalid=2529, Unknown=0, NotChecked=0, Total=3080 [2022-01-17 23:25:59,381 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 1127 mSDsluCounter, 2391 mSDsCounter, 0 mSdLazyCounter, 1332 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1127 SdHoareTripleChecker+Valid, 2482 SdHoareTripleChecker+Invalid, 1436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 1332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:59,381 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1127 Valid, 2482 Invalid, 1436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 1332 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:25:59,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2022-01-17 23:25:59,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2405. [2022-01-17 23:25:59,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2405 states, 2404 states have (on average 2.543677204658902) internal successors, (6115), 2404 states have internal predecessors, (6115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:59,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2405 states to 2405 states and 6115 transitions. [2022-01-17 23:25:59,402 INFO L78 Accepts]: Start accepts. Automaton has 2405 states and 6115 transitions. Word has length 137 [2022-01-17 23:25:59,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:59,402 INFO L470 AbstractCegarLoop]: Abstraction has 2405 states and 6115 transitions. [2022-01-17 23:25:59,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:59,402 INFO L276 IsEmpty]: Start isEmpty. Operand 2405 states and 6115 transitions. [2022-01-17 23:25:59,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:25:59,404 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:59,404 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:59,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2022-01-17 23:25:59,404 INFO L402 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:25:59,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:59,404 INFO L85 PathProgramCache]: Analyzing trace with hash -259728395, now seen corresponding path program 75 times [2022-01-17 23:25:59,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:59,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104527340] [2022-01-17 23:25:59,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:59,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:59,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:59,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:59,933 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:59,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104527340] [2022-01-17 23:25:59,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104527340] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:59,933 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:59,933 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:25:59,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408460058] [2022-01-17 23:25:59,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:59,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:25:59,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:59,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:25:59,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=730, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:25:59,965 INFO L87 Difference]: Start difference. First operand 2405 states and 6115 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:02,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:02,172 INFO L93 Difference]: Finished difference Result 2751 states and 6841 transitions. [2022-01-17 23:26:02,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-17 23:26:02,173 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:26:02,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:02,176 INFO L225 Difference]: With dead ends: 2751 [2022-01-17 23:26:02,176 INFO L226 Difference]: Without dead ends: 2613 [2022-01-17 23:26:02,176 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 575 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=558, Invalid=2522, Unknown=0, NotChecked=0, Total=3080 [2022-01-17 23:26:02,176 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 949 mSDsluCounter, 2517 mSDsCounter, 0 mSdLazyCounter, 1398 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 949 SdHoareTripleChecker+Valid, 2610 SdHoareTripleChecker+Invalid, 1490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:02,176 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [949 Valid, 2610 Invalid, 1490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 1398 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:26:02,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2613 states. [2022-01-17 23:26:02,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2613 to 2403. [2022-01-17 23:26:02,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2403 states, 2402 states have (on average 2.544129891756869) internal successors, (6111), 2402 states have internal predecessors, (6111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:02,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2403 states to 2403 states and 6111 transitions. [2022-01-17 23:26:02,197 INFO L78 Accepts]: Start accepts. Automaton has 2403 states and 6111 transitions. Word has length 137 [2022-01-17 23:26:02,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:02,197 INFO L470 AbstractCegarLoop]: Abstraction has 2403 states and 6111 transitions. [2022-01-17 23:26:02,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:02,197 INFO L276 IsEmpty]: Start isEmpty. Operand 2403 states and 6111 transitions. [2022-01-17 23:26:02,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:26:02,199 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:02,199 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:02,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2022-01-17 23:26:02,199 INFO L402 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:26:02,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:02,200 INFO L85 PathProgramCache]: Analyzing trace with hash 510250001, now seen corresponding path program 76 times [2022-01-17 23:26:02,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:02,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975600855] [2022-01-17 23:26:02,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:02,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:02,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:03,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:03,183 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:03,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975600855] [2022-01-17 23:26:03,183 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975600855] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:03,183 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:03,183 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-17 23:26:03,184 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308708940] [2022-01-17 23:26:03,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:03,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-17 23:26:03,184 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:03,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-17 23:26:03,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1009, Unknown=0, NotChecked=0, Total=1122 [2022-01-17 23:26:03,184 INFO L87 Difference]: Start difference. First operand 2403 states and 6111 transitions. Second operand has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:06,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:06,246 INFO L93 Difference]: Finished difference Result 3049 states and 7587 transitions. [2022-01-17 23:26:06,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-17 23:26:06,246 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:26:06,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:06,250 INFO L225 Difference]: With dead ends: 3049 [2022-01-17 23:26:06,250 INFO L226 Difference]: Without dead ends: 2915 [2022-01-17 23:26:06,253 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 957 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=752, Invalid=3804, Unknown=0, NotChecked=0, Total=4556 [2022-01-17 23:26:06,254 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 1210 mSDsluCounter, 3394 mSDsCounter, 0 mSdLazyCounter, 1929 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1210 SdHoareTripleChecker+Valid, 3480 SdHoareTripleChecker+Invalid, 2049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 1929 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:06,254 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1210 Valid, 3480 Invalid, 2049 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 1929 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-17 23:26:06,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2915 states. [2022-01-17 23:26:06,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2915 to 2613. [2022-01-17 23:26:06,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2613 states, 2612 states have (on average 2.5379019908116387) internal successors, (6629), 2612 states have internal predecessors, (6629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:06,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2613 states to 2613 states and 6629 transitions. [2022-01-17 23:26:06,280 INFO L78 Accepts]: Start accepts. Automaton has 2613 states and 6629 transitions. Word has length 137 [2022-01-17 23:26:06,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:06,280 INFO L470 AbstractCegarLoop]: Abstraction has 2613 states and 6629 transitions. [2022-01-17 23:26:06,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:06,281 INFO L276 IsEmpty]: Start isEmpty. Operand 2613 states and 6629 transitions. [2022-01-17 23:26:06,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:26:06,283 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:06,283 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:06,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2022-01-17 23:26:06,283 INFO L402 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:26:06,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:06,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1902260917, now seen corresponding path program 77 times [2022-01-17 23:26:06,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:06,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52135478] [2022-01-17 23:26:06,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:06,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:06,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:06,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:06,989 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:06,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52135478] [2022-01-17 23:26:06,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52135478] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:06,989 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:06,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-17 23:26:06,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451205865] [2022-01-17 23:26:06,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:06,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-17 23:26:06,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:06,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-17 23:26:06,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=836, Unknown=0, NotChecked=0, Total=930 [2022-01-17 23:26:06,992 INFO L87 Difference]: Start difference. First operand 2613 states and 6629 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:08,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:08,921 INFO L93 Difference]: Finished difference Result 3313 states and 8177 transitions. [2022-01-17 23:26:08,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-17 23:26:08,921 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:26:08,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:08,925 INFO L225 Difference]: With dead ends: 3313 [2022-01-17 23:26:08,925 INFO L226 Difference]: Without dead ends: 2730 [2022-01-17 23:26:08,925 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 757 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=669, Invalid=3237, Unknown=0, NotChecked=0, Total=3906 [2022-01-17 23:26:08,925 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 1401 mSDsluCounter, 3654 mSDsCounter, 0 mSdLazyCounter, 1783 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1401 SdHoareTripleChecker+Valid, 3775 SdHoareTripleChecker+Invalid, 1925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 1783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:08,925 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1401 Valid, 3775 Invalid, 1925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 1783 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:26:08,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2730 states. [2022-01-17 23:26:08,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2730 to 2417. [2022-01-17 23:26:08,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2417 states, 2416 states have (on average 2.535182119205298) internal successors, (6125), 2416 states have internal predecessors, (6125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:08,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2417 states to 2417 states and 6125 transitions. [2022-01-17 23:26:08,946 INFO L78 Accepts]: Start accepts. Automaton has 2417 states and 6125 transitions. Word has length 137 [2022-01-17 23:26:08,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:08,946 INFO L470 AbstractCegarLoop]: Abstraction has 2417 states and 6125 transitions. [2022-01-17 23:26:08,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:08,947 INFO L276 IsEmpty]: Start isEmpty. Operand 2417 states and 6125 transitions. [2022-01-17 23:26:08,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:26:08,949 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:08,949 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:08,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2022-01-17 23:26:08,949 INFO L402 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:26:08,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:08,949 INFO L85 PathProgramCache]: Analyzing trace with hash 748050803, now seen corresponding path program 78 times [2022-01-17 23:26:08,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:08,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505194654] [2022-01-17 23:26:08,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:08,949 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:08,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:09,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:09,609 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:09,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505194654] [2022-01-17 23:26:09,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505194654] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:09,609 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:09,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-17 23:26:09,609 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824813036] [2022-01-17 23:26:09,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:09,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-17 23:26:09,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:09,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-17 23:26:09,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=836, Unknown=0, NotChecked=0, Total=930 [2022-01-17 23:26:09,610 INFO L87 Difference]: Start difference. First operand 2417 states and 6125 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:11,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:11,253 INFO L93 Difference]: Finished difference Result 2763 states and 6851 transitions. [2022-01-17 23:26:11,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-17 23:26:11,253 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:26:11,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:11,257 INFO L225 Difference]: With dead ends: 2763 [2022-01-17 23:26:11,257 INFO L226 Difference]: Without dead ends: 2599 [2022-01-17 23:26:11,257 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 614 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=587, Invalid=2719, Unknown=0, NotChecked=0, Total=3306 [2022-01-17 23:26:11,257 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 1249 mSDsluCounter, 2460 mSDsCounter, 0 mSdLazyCounter, 1356 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1249 SdHoareTripleChecker+Valid, 2567 SdHoareTripleChecker+Invalid, 1472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 1356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:11,257 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1249 Valid, 2567 Invalid, 1472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 1356 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:26:11,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2599 states. [2022-01-17 23:26:11,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2599 to 2389. [2022-01-17 23:26:11,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2389 states, 2388 states have (on average 2.5418760469011725) internal successors, (6070), 2388 states have internal predecessors, (6070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:11,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2389 states to 2389 states and 6070 transitions. [2022-01-17 23:26:11,278 INFO L78 Accepts]: Start accepts. Automaton has 2389 states and 6070 transitions. Word has length 137 [2022-01-17 23:26:11,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:11,278 INFO L470 AbstractCegarLoop]: Abstraction has 2389 states and 6070 transitions. [2022-01-17 23:26:11,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:11,278 INFO L276 IsEmpty]: Start isEmpty. Operand 2389 states and 6070 transitions. [2022-01-17 23:26:11,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:26:11,280 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:11,280 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:11,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2022-01-17 23:26:11,281 INFO L402 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:26:11,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:11,281 INFO L85 PathProgramCache]: Analyzing trace with hash -881860401, now seen corresponding path program 79 times [2022-01-17 23:26:11,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:11,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782135137] [2022-01-17 23:26:11,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:11,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:11,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:11,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:11,904 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:11,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782135137] [2022-01-17 23:26:11,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782135137] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:11,904 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:11,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-17 23:26:11,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800819114] [2022-01-17 23:26:11,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:11,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-17 23:26:11,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:11,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-17 23:26:11,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=836, Unknown=0, NotChecked=0, Total=930 [2022-01-17 23:26:11,905 INFO L87 Difference]: Start difference. First operand 2389 states and 6070 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:14,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:14,102 INFO L93 Difference]: Finished difference Result 3145 states and 7774 transitions. [2022-01-17 23:26:14,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:26:14,102 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:26:14,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:14,106 INFO L225 Difference]: With dead ends: 3145 [2022-01-17 23:26:14,106 INFO L226 Difference]: Without dead ends: 3011 [2022-01-17 23:26:14,106 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 595 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=550, Invalid=2642, Unknown=0, NotChecked=0, Total=3192 [2022-01-17 23:26:14,106 INFO L933 BasicCegarLoop]: 206 mSDtfsCounter, 1252 mSDsluCounter, 2574 mSDsCounter, 0 mSdLazyCounter, 1466 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1252 SdHoareTripleChecker+Valid, 2699 SdHoareTripleChecker+Invalid, 1593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 1466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:14,106 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1252 Valid, 2699 Invalid, 1593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 1466 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:26:14,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3011 states. [2022-01-17 23:26:14,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3011 to 2655. [2022-01-17 23:26:14,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2655 states, 2654 states have (on average 2.5297663903541823) internal successors, (6714), 2654 states have internal predecessors, (6714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:14,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2655 states to 2655 states and 6714 transitions. [2022-01-17 23:26:14,131 INFO L78 Accepts]: Start accepts. Automaton has 2655 states and 6714 transitions. Word has length 137 [2022-01-17 23:26:14,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:14,131 INFO L470 AbstractCegarLoop]: Abstraction has 2655 states and 6714 transitions. [2022-01-17 23:26:14,131 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:14,131 INFO L276 IsEmpty]: Start isEmpty. Operand 2655 states and 6714 transitions. [2022-01-17 23:26:14,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:26:14,133 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:14,134 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:14,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2022-01-17 23:26:14,134 INFO L402 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:26:14,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:14,134 INFO L85 PathProgramCache]: Analyzing trace with hash 510150515, now seen corresponding path program 80 times [2022-01-17 23:26:14,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:14,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439326050] [2022-01-17 23:26:14,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:14,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:14,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:14,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:14,979 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:14,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439326050] [2022-01-17 23:26:14,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439326050] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:14,979 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:14,979 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-17 23:26:14,979 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363332474] [2022-01-17 23:26:14,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:14,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-17 23:26:14,980 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:14,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-17 23:26:14,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1009, Unknown=0, NotChecked=0, Total=1122 [2022-01-17 23:26:14,980 INFO L87 Difference]: Start difference. First operand 2655 states and 6714 transitions. Second operand has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:17,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:17,411 INFO L93 Difference]: Finished difference Result 3409 states and 8364 transitions. [2022-01-17 23:26:17,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-17 23:26:17,411 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:26:17,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:17,414 INFO L225 Difference]: With dead ends: 3409 [2022-01-17 23:26:17,415 INFO L226 Difference]: Without dead ends: 2826 [2022-01-17 23:26:17,415 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1056 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=824, Invalid=4146, Unknown=0, NotChecked=0, Total=4970 [2022-01-17 23:26:17,415 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 1583 mSDsluCounter, 3335 mSDsCounter, 0 mSdLazyCounter, 1659 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1583 SdHoareTripleChecker+Valid, 3460 SdHoareTripleChecker+Invalid, 1843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 1659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:17,415 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1583 Valid, 3460 Invalid, 1843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 1659 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:26:17,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2826 states. [2022-01-17 23:26:17,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2826 to 2459. [2022-01-17 23:26:17,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2459 states, 2458 states have (on average 2.526444263628967) internal successors, (6210), 2458 states have internal predecessors, (6210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:17,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2459 states to 2459 states and 6210 transitions. [2022-01-17 23:26:17,437 INFO L78 Accepts]: Start accepts. Automaton has 2459 states and 6210 transitions. Word has length 137 [2022-01-17 23:26:17,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:17,437 INFO L470 AbstractCegarLoop]: Abstraction has 2459 states and 6210 transitions. [2022-01-17 23:26:17,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:17,437 INFO L276 IsEmpty]: Start isEmpty. Operand 2459 states and 6210 transitions. [2022-01-17 23:26:17,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:26:17,439 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:17,439 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:17,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2022-01-17 23:26:17,439 INFO L402 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:26:17,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:17,440 INFO L85 PathProgramCache]: Analyzing trace with hash -644059599, now seen corresponding path program 81 times [2022-01-17 23:26:17,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:17,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20095291] [2022-01-17 23:26:17,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:17,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:17,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:18,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:18,355 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:18,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20095291] [2022-01-17 23:26:18,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20095291] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:18,355 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:18,355 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-17 23:26:18,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308076187] [2022-01-17 23:26:18,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:18,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-17 23:26:18,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:18,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-17 23:26:18,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=836, Unknown=0, NotChecked=0, Total=930 [2022-01-17 23:26:18,355 INFO L87 Difference]: Start difference. First operand 2459 states and 6210 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:19,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:19,954 INFO L93 Difference]: Finished difference Result 2861 states and 7041 transitions. [2022-01-17 23:26:19,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:26:19,954 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:26:19,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:19,957 INFO L225 Difference]: With dead ends: 2861 [2022-01-17 23:26:19,957 INFO L226 Difference]: Without dead ends: 2711 [2022-01-17 23:26:19,958 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 591 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=564, Invalid=2628, Unknown=0, NotChecked=0, Total=3192 [2022-01-17 23:26:19,959 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 1351 mSDsluCounter, 2374 mSDsCounter, 0 mSdLazyCounter, 1383 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1351 SdHoareTripleChecker+Valid, 2482 SdHoareTripleChecker+Invalid, 1511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 1383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:19,960 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1351 Valid, 2482 Invalid, 1511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 1383 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:26:19,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2711 states. [2022-01-17 23:26:19,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2711 to 2445. [2022-01-17 23:26:19,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2445 states, 2444 states have (on average 2.5294599018003274) internal successors, (6182), 2444 states have internal predecessors, (6182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:19,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2445 states to 2445 states and 6182 transitions. [2022-01-17 23:26:19,982 INFO L78 Accepts]: Start accepts. Automaton has 2445 states and 6182 transitions. Word has length 137 [2022-01-17 23:26:19,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:19,982 INFO L470 AbstractCegarLoop]: Abstraction has 2445 states and 6182 transitions. [2022-01-17 23:26:19,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:19,982 INFO L276 IsEmpty]: Start isEmpty. Operand 2445 states and 6182 transitions. [2022-01-17 23:26:19,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:26:19,984 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:19,984 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:19,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2022-01-17 23:26:19,984 INFO L402 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:26:19,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:19,984 INFO L85 PathProgramCache]: Analyzing trace with hash 132036235, now seen corresponding path program 82 times [2022-01-17 23:26:19,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:19,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149455020] [2022-01-17 23:26:19,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:19,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:20,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:20,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:20,719 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:20,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149455020] [2022-01-17 23:26:20,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149455020] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:20,719 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:20,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-17 23:26:20,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632270194] [2022-01-17 23:26:20,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:20,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-17 23:26:20,719 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:20,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-17 23:26:20,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=836, Unknown=0, NotChecked=0, Total=930 [2022-01-17 23:26:20,720 INFO L87 Difference]: Start difference. First operand 2445 states and 6182 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:22,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:22,900 INFO L93 Difference]: Finished difference Result 2859 states and 7033 transitions. [2022-01-17 23:26:22,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:26:22,900 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:26:22,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:22,903 INFO L225 Difference]: With dead ends: 2859 [2022-01-17 23:26:22,903 INFO L226 Difference]: Without dead ends: 2633 [2022-01-17 23:26:22,904 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 567 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=544, Invalid=2536, Unknown=0, NotChecked=0, Total=3080 [2022-01-17 23:26:22,904 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 1271 mSDsluCounter, 2577 mSDsCounter, 0 mSdLazyCounter, 1598 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1271 SdHoareTripleChecker+Valid, 2662 SdHoareTripleChecker+Invalid, 1721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 1598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:22,904 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1271 Valid, 2662 Invalid, 1721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 1598 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:26:22,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2633 states. [2022-01-17 23:26:22,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2633 to 2363. [2022-01-17 23:26:22,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2363 states, 2362 states have (on average 2.530906011854361) internal successors, (5978), 2362 states have internal predecessors, (5978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:22,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2363 states to 2363 states and 5978 transitions. [2022-01-17 23:26:22,924 INFO L78 Accepts]: Start accepts. Automaton has 2363 states and 5978 transitions. Word has length 137 [2022-01-17 23:26:22,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:22,925 INFO L470 AbstractCegarLoop]: Abstraction has 2363 states and 5978 transitions. [2022-01-17 23:26:22,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:22,925 INFO L276 IsEmpty]: Start isEmpty. Operand 2363 states and 5978 transitions. [2022-01-17 23:26:22,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:26:22,927 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:22,927 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:22,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2022-01-17 23:26:22,927 INFO L402 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:26:22,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:22,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1431340775, now seen corresponding path program 83 times [2022-01-17 23:26:22,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:22,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764971918] [2022-01-17 23:26:22,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:22,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:22,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:23,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:23,472 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:23,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764971918] [2022-01-17 23:26:23,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764971918] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:23,472 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:23,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:26:23,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882204319] [2022-01-17 23:26:23,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:23,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:26:23,472 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:23,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:26:23,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=730, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:26:23,473 INFO L87 Difference]: Start difference. First operand 2363 states and 5978 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:25,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:25,175 INFO L93 Difference]: Finished difference Result 2734 states and 6745 transitions. [2022-01-17 23:26:25,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:26:25,175 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:26:25,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:25,178 INFO L225 Difference]: With dead ends: 2734 [2022-01-17 23:26:25,178 INFO L226 Difference]: Without dead ends: 2625 [2022-01-17 23:26:25,179 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 529 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=513, Invalid=2349, Unknown=0, NotChecked=0, Total=2862 [2022-01-17 23:26:25,179 INFO L933 BasicCegarLoop]: 177 mSDtfsCounter, 1023 mSDsluCounter, 2471 mSDsCounter, 0 mSdLazyCounter, 1461 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1023 SdHoareTripleChecker+Valid, 2585 SdHoareTripleChecker+Invalid, 1554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 1461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:25,179 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1023 Valid, 2585 Invalid, 1554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 1461 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:26:25,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2625 states. [2022-01-17 23:26:25,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2625 to 2403. [2022-01-17 23:26:25,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2403 states, 2402 states have (on average 2.5208159866777686) internal successors, (6055), 2402 states have internal predecessors, (6055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:25,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2403 states to 2403 states and 6055 transitions. [2022-01-17 23:26:25,200 INFO L78 Accepts]: Start accepts. Automaton has 2403 states and 6055 transitions. Word has length 137 [2022-01-17 23:26:25,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:25,200 INFO L470 AbstractCegarLoop]: Abstraction has 2403 states and 6055 transitions. [2022-01-17 23:26:25,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:25,201 INFO L276 IsEmpty]: Start isEmpty. Operand 2403 states and 6055 transitions. [2022-01-17 23:26:25,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:26:25,203 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:25,203 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:25,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2022-01-17 23:26:25,205 INFO L402 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:26:25,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:25,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1886357159, now seen corresponding path program 84 times [2022-01-17 23:26:25,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:25,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797277585] [2022-01-17 23:26:25,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:25,209 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:25,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:25,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:25,837 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:25,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797277585] [2022-01-17 23:26:25,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797277585] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:25,840 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:25,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-17 23:26:25,840 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603465151] [2022-01-17 23:26:25,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:25,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-17 23:26:25,842 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:25,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-17 23:26:25,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2022-01-17 23:26:25,844 INFO L87 Difference]: Start difference. First operand 2403 states and 6055 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:27,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:27,630 INFO L93 Difference]: Finished difference Result 2742 states and 6760 transitions. [2022-01-17 23:26:27,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-17 23:26:27,631 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:26:27,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:27,633 INFO L225 Difference]: With dead ends: 2742 [2022-01-17 23:26:27,633 INFO L226 Difference]: Without dead ends: 2641 [2022-01-17 23:26:27,634 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 488 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=538, Invalid=2432, Unknown=0, NotChecked=0, Total=2970 [2022-01-17 23:26:27,634 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 916 mSDsluCounter, 2442 mSDsCounter, 0 mSdLazyCounter, 1344 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 916 SdHoareTripleChecker+Valid, 2572 SdHoareTripleChecker+Invalid, 1424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 1344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:27,634 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [916 Valid, 2572 Invalid, 1424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 1344 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:26:27,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2641 states. [2022-01-17 23:26:27,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2641 to 2417. [2022-01-17 23:26:27,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2417 states, 2416 states have (on average 2.517384105960265) internal successors, (6082), 2416 states have internal predecessors, (6082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:27,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2417 states to 2417 states and 6082 transitions. [2022-01-17 23:26:27,657 INFO L78 Accepts]: Start accepts. Automaton has 2417 states and 6082 transitions. Word has length 137 [2022-01-17 23:26:27,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:27,657 INFO L470 AbstractCegarLoop]: Abstraction has 2417 states and 6082 transitions. [2022-01-17 23:26:27,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:27,657 INFO L276 IsEmpty]: Start isEmpty. Operand 2417 states and 6082 transitions. [2022-01-17 23:26:27,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:26:27,659 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:27,659 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:27,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2022-01-17 23:26:27,660 INFO L402 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:26:27,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:27,661 INFO L85 PathProgramCache]: Analyzing trace with hash -552618791, now seen corresponding path program 85 times [2022-01-17 23:26:27,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:27,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500765231] [2022-01-17 23:26:27,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:27,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:27,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:28,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:28,408 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:28,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500765231] [2022-01-17 23:26:28,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500765231] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:28,409 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:28,409 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:26:28,409 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205524247] [2022-01-17 23:26:28,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:28,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:26:28,409 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:28,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:26:28,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=727, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:26:28,409 INFO L87 Difference]: Start difference. First operand 2417 states and 6082 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:30,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:30,533 INFO L93 Difference]: Finished difference Result 3000 states and 7422 transitions. [2022-01-17 23:26:30,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:26:30,534 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:26:30,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:30,537 INFO L225 Difference]: With dead ends: 3000 [2022-01-17 23:26:30,537 INFO L226 Difference]: Without dead ends: 2901 [2022-01-17 23:26:30,538 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 551 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=525, Invalid=2445, Unknown=0, NotChecked=0, Total=2970 [2022-01-17 23:26:30,538 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 1248 mSDsluCounter, 2257 mSDsCounter, 0 mSdLazyCounter, 1227 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1248 SdHoareTripleChecker+Valid, 2409 SdHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 1227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:30,538 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1248 Valid, 2409 Invalid, 1342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 1227 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:26:30,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2901 states. [2022-01-17 23:26:30,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2901 to 2613. [2022-01-17 23:26:30,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2613 states, 2612 states have (on average 2.5160796324655434) internal successors, (6572), 2612 states have internal predecessors, (6572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:30,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2613 states to 2613 states and 6572 transitions. [2022-01-17 23:26:30,561 INFO L78 Accepts]: Start accepts. Automaton has 2613 states and 6572 transitions. Word has length 137 [2022-01-17 23:26:30,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:30,562 INFO L470 AbstractCegarLoop]: Abstraction has 2613 states and 6572 transitions. [2022-01-17 23:26:30,562 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:30,562 INFO L276 IsEmpty]: Start isEmpty. Operand 2613 states and 6572 transitions. [2022-01-17 23:26:30,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:26:30,564 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:30,564 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:30,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2022-01-17 23:26:30,564 INFO L402 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:26:30,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:30,564 INFO L85 PathProgramCache]: Analyzing trace with hash -344564647, now seen corresponding path program 86 times [2022-01-17 23:26:30,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:30,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269493593] [2022-01-17 23:26:30,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:30,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:30,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:31,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:31,490 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:31,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269493593] [2022-01-17 23:26:31,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269493593] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:31,490 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:31,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-17 23:26:31,490 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456036262] [2022-01-17 23:26:31,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:31,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-17 23:26:31,491 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:31,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-17 23:26:31,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=831, Unknown=0, NotChecked=0, Total=930 [2022-01-17 23:26:31,491 INFO L87 Difference]: Start difference. First operand 2613 states and 6572 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:33,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:33,779 INFO L93 Difference]: Finished difference Result 3203 states and 7909 transitions. [2022-01-17 23:26:33,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:26:33,779 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:26:33,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:33,783 INFO L225 Difference]: With dead ends: 3203 [2022-01-17 23:26:33,783 INFO L226 Difference]: Without dead ends: 2928 [2022-01-17 23:26:33,783 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 565 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=565, Invalid=2627, Unknown=0, NotChecked=0, Total=3192 [2022-01-17 23:26:33,784 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 1175 mSDsluCounter, 3494 mSDsCounter, 0 mSdLazyCounter, 1672 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1175 SdHoareTripleChecker+Valid, 3645 SdHoareTripleChecker+Invalid, 1777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 1672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:33,784 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1175 Valid, 3645 Invalid, 1777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 1672 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:26:33,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2928 states. [2022-01-17 23:26:33,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2928 to 2655. [2022-01-17 23:26:33,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2655 states, 2654 states have (on average 2.5026375282592315) internal successors, (6642), 2654 states have internal predecessors, (6642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:33,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2655 states to 2655 states and 6642 transitions. [2022-01-17 23:26:33,810 INFO L78 Accepts]: Start accepts. Automaton has 2655 states and 6642 transitions. Word has length 137 [2022-01-17 23:26:33,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:33,810 INFO L470 AbstractCegarLoop]: Abstraction has 2655 states and 6642 transitions. [2022-01-17 23:26:33,810 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:33,810 INFO L276 IsEmpty]: Start isEmpty. Operand 2655 states and 6642 transitions. [2022-01-17 23:26:33,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:26:33,812 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:33,812 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:33,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2022-01-17 23:26:33,812 INFO L402 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:26:33,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:33,813 INFO L85 PathProgramCache]: Analyzing trace with hash 600627383, now seen corresponding path program 87 times [2022-01-17 23:26:33,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:33,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366555652] [2022-01-17 23:26:33,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:33,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:33,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:34,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:34,674 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:34,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366555652] [2022-01-17 23:26:34,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366555652] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:34,675 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:34,675 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-17 23:26:34,675 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157537438] [2022-01-17 23:26:34,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:34,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-17 23:26:34,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:34,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-17 23:26:34,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=832, Unknown=0, NotChecked=0, Total=930 [2022-01-17 23:26:34,675 INFO L87 Difference]: Start difference. First operand 2655 states and 6642 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:36,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:36,510 INFO L93 Difference]: Finished difference Result 2999 states and 7362 transitions. [2022-01-17 23:26:36,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-17 23:26:36,510 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:26:36,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:36,513 INFO L225 Difference]: With dead ends: 2999 [2022-01-17 23:26:36,513 INFO L226 Difference]: Without dead ends: 2606 [2022-01-17 23:26:36,514 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 585 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=576, Invalid=2730, Unknown=0, NotChecked=0, Total=3306 [2022-01-17 23:26:36,514 INFO L933 BasicCegarLoop]: 214 mSDtfsCounter, 1167 mSDsluCounter, 2923 mSDsCounter, 0 mSdLazyCounter, 1468 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1167 SdHoareTripleChecker+Valid, 3068 SdHoareTripleChecker+Invalid, 1574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 1468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:36,514 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1167 Valid, 3068 Invalid, 1574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 1468 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:26:36,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2606 states. [2022-01-17 23:26:36,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2606 to 2333. [2022-01-17 23:26:36,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2333 states, 2332 states have (on average 2.532590051457976) internal successors, (5906), 2332 states have internal predecessors, (5906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:36,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2333 states to 2333 states and 5906 transitions. [2022-01-17 23:26:36,534 INFO L78 Accepts]: Start accepts. Automaton has 2333 states and 5906 transitions. Word has length 137 [2022-01-17 23:26:36,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:36,534 INFO L470 AbstractCegarLoop]: Abstraction has 2333 states and 5906 transitions. [2022-01-17 23:26:36,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:36,534 INFO L276 IsEmpty]: Start isEmpty. Operand 2333 states and 5906 transitions. [2022-01-17 23:26:36,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:26:36,536 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:36,536 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:36,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2022-01-17 23:26:36,536 INFO L402 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:26:36,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:36,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1625746031, now seen corresponding path program 88 times [2022-01-17 23:26:36,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:36,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971656485] [2022-01-17 23:26:36,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:36,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:36,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:37,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:37,072 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:37,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971656485] [2022-01-17 23:26:37,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971656485] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:37,072 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:37,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:26:37,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68772229] [2022-01-17 23:26:37,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:37,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:26:37,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:37,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:26:37,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=731, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:26:37,072 INFO L87 Difference]: Start difference. First operand 2333 states and 5906 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:38,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:38,687 INFO L93 Difference]: Finished difference Result 2704 states and 6719 transitions. [2022-01-17 23:26:38,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:26:38,688 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:26:38,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:38,691 INFO L225 Difference]: With dead ends: 2704 [2022-01-17 23:26:38,691 INFO L226 Difference]: Without dead ends: 2595 [2022-01-17 23:26:38,691 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 558 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=522, Invalid=2448, Unknown=0, NotChecked=0, Total=2970 [2022-01-17 23:26:38,692 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 926 mSDsluCounter, 2174 mSDsCounter, 0 mSdLazyCounter, 1236 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 926 SdHoareTripleChecker+Valid, 2284 SdHoareTripleChecker+Invalid, 1316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 1236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:38,692 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [926 Valid, 2284 Invalid, 1316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 1236 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:26:38,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2595 states. [2022-01-17 23:26:38,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2595 to 2399. [2022-01-17 23:26:38,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2399 states, 2398 states have (on average 2.542535446205171) internal successors, (6097), 2398 states have internal predecessors, (6097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:38,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2399 states to 2399 states and 6097 transitions. [2022-01-17 23:26:38,714 INFO L78 Accepts]: Start accepts. Automaton has 2399 states and 6097 transitions. Word has length 137 [2022-01-17 23:26:38,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:38,714 INFO L470 AbstractCegarLoop]: Abstraction has 2399 states and 6097 transitions. [2022-01-17 23:26:38,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:38,714 INFO L276 IsEmpty]: Start isEmpty. Operand 2399 states and 6097 transitions. [2022-01-17 23:26:38,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:26:38,717 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:38,717 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:38,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2022-01-17 23:26:38,717 INFO L402 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:26:38,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:38,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1063228835, now seen corresponding path program 89 times [2022-01-17 23:26:38,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:38,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270831285] [2022-01-17 23:26:38,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:38,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:38,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:39,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:39,381 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:39,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270831285] [2022-01-17 23:26:39,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270831285] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:39,382 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:39,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:26:39,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526025478] [2022-01-17 23:26:39,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:39,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:26:39,382 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:39,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:26:39,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=731, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:26:39,382 INFO L87 Difference]: Start difference. First operand 2399 states and 6097 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:41,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:41,345 INFO L93 Difference]: Finished difference Result 2664 states and 6629 transitions. [2022-01-17 23:26:41,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:26:41,346 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:26:41,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:41,349 INFO L225 Difference]: With dead ends: 2664 [2022-01-17 23:26:41,349 INFO L226 Difference]: Without dead ends: 2561 [2022-01-17 23:26:41,349 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 552 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=533, Invalid=2437, Unknown=0, NotChecked=0, Total=2970 [2022-01-17 23:26:41,349 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 1032 mSDsluCounter, 2084 mSDsCounter, 0 mSdLazyCounter, 1212 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1032 SdHoareTripleChecker+Valid, 2193 SdHoareTripleChecker+Invalid, 1301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 1212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:41,349 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1032 Valid, 2193 Invalid, 1301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 1212 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:26:41,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2022-01-17 23:26:41,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 2397. [2022-01-17 23:26:41,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2397 states, 2396 states have (on average 2.5425709515859767) internal successors, (6092), 2396 states have internal predecessors, (6092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:41,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2397 states to 2397 states and 6092 transitions. [2022-01-17 23:26:41,370 INFO L78 Accepts]: Start accepts. Automaton has 2397 states and 6092 transitions. Word has length 137 [2022-01-17 23:26:41,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:41,370 INFO L470 AbstractCegarLoop]: Abstraction has 2397 states and 6092 transitions. [2022-01-17 23:26:41,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:41,370 INFO L276 IsEmpty]: Start isEmpty. Operand 2397 states and 6092 transitions. [2022-01-17 23:26:41,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:26:41,372 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:41,372 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:41,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2022-01-17 23:26:41,373 INFO L402 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:26:41,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:41,373 INFO L85 PathProgramCache]: Analyzing trace with hash 203267157, now seen corresponding path program 90 times [2022-01-17 23:26:41,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:41,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517886379] [2022-01-17 23:26:41,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:41,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:41,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:42,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:42,121 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:42,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517886379] [2022-01-17 23:26:42,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517886379] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:42,121 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:42,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:26:42,121 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193634421] [2022-01-17 23:26:42,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:42,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:26:42,122 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:42,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:26:42,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=731, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:26:42,122 INFO L87 Difference]: Start difference. First operand 2397 states and 6092 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:44,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:44,278 INFO L93 Difference]: Finished difference Result 2676 states and 6647 transitions. [2022-01-17 23:26:44,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:26:44,278 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:26:44,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:44,281 INFO L225 Difference]: With dead ends: 2676 [2022-01-17 23:26:44,281 INFO L226 Difference]: Without dead ends: 2563 [2022-01-17 23:26:44,281 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 528 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=513, Invalid=2349, Unknown=0, NotChecked=0, Total=2862 [2022-01-17 23:26:44,282 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 1016 mSDsluCounter, 2464 mSDsCounter, 0 mSdLazyCounter, 1486 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1016 SdHoareTripleChecker+Valid, 2563 SdHoareTripleChecker+Invalid, 1578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:44,282 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1016 Valid, 2563 Invalid, 1578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 1486 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:26:44,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2563 states. [2022-01-17 23:26:44,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2563 to 2393. [2022-01-17 23:26:44,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2393 states, 2392 states have (on average 2.5405518394648827) internal successors, (6077), 2392 states have internal predecessors, (6077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:44,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2393 states to 2393 states and 6077 transitions. [2022-01-17 23:26:44,311 INFO L78 Accepts]: Start accepts. Automaton has 2393 states and 6077 transitions. Word has length 137 [2022-01-17 23:26:44,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:44,312 INFO L470 AbstractCegarLoop]: Abstraction has 2393 states and 6077 transitions. [2022-01-17 23:26:44,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:44,312 INFO L276 IsEmpty]: Start isEmpty. Operand 2393 states and 6077 transitions. [2022-01-17 23:26:44,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:26:44,314 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:44,314 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:44,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2022-01-17 23:26:44,314 INFO L402 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:26:44,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:44,314 INFO L85 PathProgramCache]: Analyzing trace with hash 405140015, now seen corresponding path program 91 times [2022-01-17 23:26:44,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:44,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188253050] [2022-01-17 23:26:44,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:44,314 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:44,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:45,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:45,041 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:45,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188253050] [2022-01-17 23:26:45,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188253050] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:45,041 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:45,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:26:45,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063961344] [2022-01-17 23:26:45,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:45,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:26:45,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:45,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:26:45,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=730, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:26:45,042 INFO L87 Difference]: Start difference. First operand 2393 states and 6077 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:46,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:46,748 INFO L93 Difference]: Finished difference Result 2720 states and 6760 transitions. [2022-01-17 23:26:46,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-17 23:26:46,748 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:26:46,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:46,751 INFO L225 Difference]: With dead ends: 2720 [2022-01-17 23:26:46,751 INFO L226 Difference]: Without dead ends: 2611 [2022-01-17 23:26:46,752 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 605 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=568, Invalid=2624, Unknown=0, NotChecked=0, Total=3192 [2022-01-17 23:26:46,752 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 1257 mSDsluCounter, 2380 mSDsCounter, 0 mSdLazyCounter, 1266 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1257 SdHoareTripleChecker+Valid, 2498 SdHoareTripleChecker+Invalid, 1369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:46,752 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1257 Valid, 2498 Invalid, 1369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1266 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:26:46,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2611 states. [2022-01-17 23:26:46,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2611 to 2409. [2022-01-17 23:26:46,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2409 states, 2408 states have (on average 2.542358803986711) internal successors, (6122), 2408 states have internal predecessors, (6122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:46,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2409 states to 2409 states and 6122 transitions. [2022-01-17 23:26:46,773 INFO L78 Accepts]: Start accepts. Automaton has 2409 states and 6122 transitions. Word has length 137 [2022-01-17 23:26:46,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:46,773 INFO L470 AbstractCegarLoop]: Abstraction has 2409 states and 6122 transitions. [2022-01-17 23:26:46,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:46,773 INFO L276 IsEmpty]: Start isEmpty. Operand 2409 states and 6122 transitions. [2022-01-17 23:26:46,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:26:46,775 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:46,775 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:46,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2022-01-17 23:26:46,776 INFO L402 AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:26:46,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:46,776 INFO L85 PathProgramCache]: Analyzing trace with hash -157377181, now seen corresponding path program 92 times [2022-01-17 23:26:46,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:46,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165114660] [2022-01-17 23:26:46,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:46,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:46,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:47,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:47,524 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:47,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165114660] [2022-01-17 23:26:47,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165114660] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:47,525 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:47,525 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:26:47,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488715470] [2022-01-17 23:26:47,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:47,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:26:47,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:47,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:26:47,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=730, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:26:47,525 INFO L87 Difference]: Start difference. First operand 2409 states and 6122 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:49,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:49,865 INFO L93 Difference]: Finished difference Result 2680 states and 6670 transitions. [2022-01-17 23:26:49,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-17 23:26:49,865 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:26:49,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:49,868 INFO L225 Difference]: With dead ends: 2680 [2022-01-17 23:26:49,868 INFO L226 Difference]: Without dead ends: 2577 [2022-01-17 23:26:49,868 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 597 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=581, Invalid=2611, Unknown=0, NotChecked=0, Total=3192 [2022-01-17 23:26:49,868 INFO L933 BasicCegarLoop]: 176 mSDtfsCounter, 899 mSDsluCounter, 2570 mSDsCounter, 0 mSdLazyCounter, 1379 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 899 SdHoareTripleChecker+Valid, 2682 SdHoareTripleChecker+Invalid, 1460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:49,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [899 Valid, 2682 Invalid, 1460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1379 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:26:49,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2577 states. [2022-01-17 23:26:49,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2577 to 2407. [2022-01-17 23:26:49,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2407 states, 2406 states have (on average 2.542809642560266) internal successors, (6118), 2406 states have internal predecessors, (6118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:49,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2407 states to 2407 states and 6118 transitions. [2022-01-17 23:26:49,888 INFO L78 Accepts]: Start accepts. Automaton has 2407 states and 6118 transitions. Word has length 137 [2022-01-17 23:26:49,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:49,888 INFO L470 AbstractCegarLoop]: Abstraction has 2407 states and 6118 transitions. [2022-01-17 23:26:49,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:49,889 INFO L276 IsEmpty]: Start isEmpty. Operand 2407 states and 6118 transitions. [2022-01-17 23:26:49,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:26:49,891 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:49,891 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:49,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2022-01-17 23:26:49,891 INFO L402 AbstractCegarLoop]: === Iteration 137 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:26:49,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:49,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1198643537, now seen corresponding path program 93 times [2022-01-17 23:26:49,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:49,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127864123] [2022-01-17 23:26:49,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:49,891 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:49,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:50,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:50,643 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:50,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127864123] [2022-01-17 23:26:50,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127864123] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:50,643 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:50,643 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:26:50,643 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613494109] [2022-01-17 23:26:50,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:50,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:26:50,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:50,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:26:50,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=728, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:26:50,644 INFO L87 Difference]: Start difference. First operand 2407 states and 6118 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:52,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:52,901 INFO L93 Difference]: Finished difference Result 3032 states and 7571 transitions. [2022-01-17 23:26:52,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-17 23:26:52,901 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:26:52,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:52,905 INFO L225 Difference]: With dead ends: 3032 [2022-01-17 23:26:52,905 INFO L226 Difference]: Without dead ends: 2923 [2022-01-17 23:26:52,905 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 583 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=543, Invalid=2537, Unknown=0, NotChecked=0, Total=3080 [2022-01-17 23:26:52,905 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 1111 mSDsluCounter, 2513 mSDsCounter, 0 mSdLazyCounter, 1336 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1111 SdHoareTripleChecker+Valid, 2644 SdHoareTripleChecker+Invalid, 1436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:52,905 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1111 Valid, 2644 Invalid, 1436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1336 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:26:52,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2923 states. [2022-01-17 23:26:52,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2923 to 2477. [2022-01-17 23:26:52,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2477 states, 2476 states have (on average 2.5480613893376414) internal successors, (6309), 2476 states have internal predecessors, (6309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:52,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2477 states to 2477 states and 6309 transitions. [2022-01-17 23:26:52,928 INFO L78 Accepts]: Start accepts. Automaton has 2477 states and 6309 transitions. Word has length 137 [2022-01-17 23:26:52,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:52,928 INFO L470 AbstractCegarLoop]: Abstraction has 2477 states and 6309 transitions. [2022-01-17 23:26:52,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:52,928 INFO L276 IsEmpty]: Start isEmpty. Operand 2477 states and 6309 transitions. [2022-01-17 23:26:52,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:26:52,930 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:52,930 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:52,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2022-01-17 23:26:52,930 INFO L402 AbstractCegarLoop]: === Iteration 138 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:26:52,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:52,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1640752977, now seen corresponding path program 94 times [2022-01-17 23:26:52,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:52,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932715720] [2022-01-17 23:26:52,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:52,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:52,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:53,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:53,672 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:53,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932715720] [2022-01-17 23:26:53,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932715720] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:53,672 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:53,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:26:53,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550657284] [2022-01-17 23:26:53,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:53,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:26:53,673 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:53,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:26:53,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=727, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:26:53,673 INFO L87 Difference]: Start difference. First operand 2477 states and 6309 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:55,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:55,717 INFO L93 Difference]: Finished difference Result 3266 states and 8172 transitions. [2022-01-17 23:26:55,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-17 23:26:55,717 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:26:55,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:55,721 INFO L225 Difference]: With dead ends: 3266 [2022-01-17 23:26:55,721 INFO L226 Difference]: Without dead ends: 3167 [2022-01-17 23:26:55,722 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 577 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=544, Invalid=2536, Unknown=0, NotChecked=0, Total=3080 [2022-01-17 23:26:55,722 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 1206 mSDsluCounter, 3022 mSDsCounter, 0 mSdLazyCounter, 1540 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1206 SdHoareTripleChecker+Valid, 3155 SdHoareTripleChecker+Invalid, 1654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 1540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:55,722 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1206 Valid, 3155 Invalid, 1654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 1540 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:26:55,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3167 states. [2022-01-17 23:26:55,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3167 to 2673. [2022-01-17 23:26:55,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2673 states, 2672 states have (on average 2.5445359281437128) internal successors, (6799), 2672 states have internal predecessors, (6799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:55,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2673 states to 2673 states and 6799 transitions. [2022-01-17 23:26:55,748 INFO L78 Accepts]: Start accepts. Automaton has 2673 states and 6799 transitions. Word has length 137 [2022-01-17 23:26:55,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:55,748 INFO L470 AbstractCegarLoop]: Abstraction has 2673 states and 6799 transitions. [2022-01-17 23:26:55,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:55,748 INFO L276 IsEmpty]: Start isEmpty. Operand 2673 states and 6799 transitions. [2022-01-17 23:26:55,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:26:55,751 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:55,751 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:55,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2022-01-17 23:26:55,751 INFO L402 AbstractCegarLoop]: === Iteration 139 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:26:55,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:55,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1406424913, now seen corresponding path program 95 times [2022-01-17 23:26:55,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:55,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075956230] [2022-01-17 23:26:55,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:55,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:55,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:56,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:56,430 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:56,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075956230] [2022-01-17 23:26:56,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075956230] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:56,430 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:56,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2022-01-17 23:26:56,430 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408782296] [2022-01-17 23:26:56,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:56,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-01-17 23:26:56,430 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:56,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-01-17 23:26:56,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=886, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:26:56,430 INFO L87 Difference]: Start difference. First operand 2673 states and 6799 transitions. Second operand has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:58,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:58,379 INFO L93 Difference]: Finished difference Result 3469 states and 8659 transitions. [2022-01-17 23:26:58,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-17 23:26:58,379 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:26:58,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:58,383 INFO L225 Difference]: With dead ends: 3469 [2022-01-17 23:26:58,383 INFO L226 Difference]: Without dead ends: 3194 [2022-01-17 23:26:58,383 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 827 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=731, Invalid=3429, Unknown=0, NotChecked=0, Total=4160 [2022-01-17 23:26:58,384 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 1229 mSDsluCounter, 3014 mSDsCounter, 0 mSdLazyCounter, 1417 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1229 SdHoareTripleChecker+Valid, 3176 SdHoareTripleChecker+Invalid, 1530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:58,384 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1229 Valid, 3176 Invalid, 1530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1417 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:26:58,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3194 states. [2022-01-17 23:26:58,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3194 to 2715. [2022-01-17 23:26:58,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2715 states, 2714 states have (on average 2.5309506263817245) internal successors, (6869), 2714 states have internal predecessors, (6869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:58,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2715 states to 2715 states and 6869 transitions. [2022-01-17 23:26:58,408 INFO L78 Accepts]: Start accepts. Automaton has 2715 states and 6869 transitions. Word has length 137 [2022-01-17 23:26:58,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:58,408 INFO L470 AbstractCegarLoop]: Abstraction has 2715 states and 6869 transitions. [2022-01-17 23:26:58,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:58,408 INFO L276 IsEmpty]: Start isEmpty. Operand 2715 states and 6869 transitions. [2022-01-17 23:26:58,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:26:58,410 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:58,411 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:58,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2022-01-17 23:26:58,411 INFO L402 AbstractCegarLoop]: === Iteration 140 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:26:58,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:58,411 INFO L85 PathProgramCache]: Analyzing trace with hash -461232883, now seen corresponding path program 96 times [2022-01-17 23:26:58,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:58,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770303956] [2022-01-17 23:26:58,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:58,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:58,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:59,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:59,205 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:59,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770303956] [2022-01-17 23:26:59,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770303956] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:59,205 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:59,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-17 23:26:59,205 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906925653] [2022-01-17 23:26:59,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:59,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-17 23:26:59,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:59,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-17 23:26:59,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=1001, Unknown=0, NotChecked=0, Total=1122 [2022-01-17 23:26:59,206 INFO L87 Difference]: Start difference. First operand 2715 states and 6869 transitions. Second operand has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:01,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:01,059 INFO L93 Difference]: Finished difference Result 3265 states and 8112 transitions. [2022-01-17 23:27:01,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-17 23:27:01,059 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:27:01,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:01,064 INFO L225 Difference]: With dead ends: 3265 [2022-01-17 23:27:01,064 INFO L226 Difference]: Without dead ends: 2886 [2022-01-17 23:27:01,064 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 836 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=701, Invalid=3459, Unknown=0, NotChecked=0, Total=4160 [2022-01-17 23:27:01,065 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 1385 mSDsluCounter, 3230 mSDsCounter, 0 mSdLazyCounter, 1514 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1385 SdHoareTripleChecker+Valid, 3372 SdHoareTripleChecker+Invalid, 1651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 1514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:01,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1385 Valid, 3372 Invalid, 1651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 1514 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:27:01,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2886 states. [2022-01-17 23:27:01,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2886 to 2407. [2022-01-17 23:27:01,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2407 states, 2406 states have (on average 2.536990856192851) internal successors, (6104), 2406 states have internal predecessors, (6104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:01,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2407 states to 2407 states and 6104 transitions. [2022-01-17 23:27:01,089 INFO L78 Accepts]: Start accepts. Automaton has 2407 states and 6104 transitions. Word has length 137 [2022-01-17 23:27:01,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:01,089 INFO L470 AbstractCegarLoop]: Abstraction has 2407 states and 6104 transitions. [2022-01-17 23:27:01,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:01,089 INFO L276 IsEmpty]: Start isEmpty. Operand 2407 states and 6104 transitions. [2022-01-17 23:27:01,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:27:01,091 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:01,091 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:01,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2022-01-17 23:27:01,091 INFO L402 AbstractCegarLoop]: === Iteration 141 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:27:01,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:01,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1933603811, now seen corresponding path program 97 times [2022-01-17 23:27:01,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:01,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361717419] [2022-01-17 23:27:01,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:01,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:01,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:01,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:01,680 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:01,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361717419] [2022-01-17 23:27:01,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361717419] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:01,680 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:01,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:27:01,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240655564] [2022-01-17 23:27:01,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:01,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:27:01,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:01,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:27:01,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=729, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:27:01,681 INFO L87 Difference]: Start difference. First operand 2407 states and 6104 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:04,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:04,008 INFO L93 Difference]: Finished difference Result 2690 states and 6661 transitions. [2022-01-17 23:27:04,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-17 23:27:04,009 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:27:04,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:04,012 INFO L225 Difference]: With dead ends: 2690 [2022-01-17 23:27:04,012 INFO L226 Difference]: Without dead ends: 2589 [2022-01-17 23:27:04,012 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 599 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=580, Invalid=2612, Unknown=0, NotChecked=0, Total=3192 [2022-01-17 23:27:04,012 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 1191 mSDsluCounter, 2470 mSDsCounter, 0 mSdLazyCounter, 1291 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1191 SdHoareTripleChecker+Valid, 2597 SdHoareTripleChecker+Invalid, 1393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:04,012 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1191 Valid, 2597 Invalid, 1393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1291 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:27:04,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2589 states. [2022-01-17 23:27:04,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2589 to 2421. [2022-01-17 23:27:04,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2421 states, 2420 states have (on average 2.533471074380165) internal successors, (6131), 2420 states have internal predecessors, (6131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:04,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2421 states to 2421 states and 6131 transitions. [2022-01-17 23:27:04,033 INFO L78 Accepts]: Start accepts. Automaton has 2421 states and 6131 transitions. Word has length 137 [2022-01-17 23:27:04,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:04,033 INFO L470 AbstractCegarLoop]: Abstraction has 2421 states and 6131 transitions. [2022-01-17 23:27:04,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:04,033 INFO L276 IsEmpty]: Start isEmpty. Operand 2421 states and 6131 transitions. [2022-01-17 23:27:04,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:27:04,035 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:04,035 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:04,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2022-01-17 23:27:04,036 INFO L402 AbstractCegarLoop]: === Iteration 142 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:27:04,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:04,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1027625117, now seen corresponding path program 98 times [2022-01-17 23:27:04,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:04,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402804361] [2022-01-17 23:27:04,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:04,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:04,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:04,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:04,590 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:04,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402804361] [2022-01-17 23:27:04,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402804361] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:04,590 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:04,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:27:04,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135550502] [2022-01-17 23:27:04,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:04,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:27:04,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:04,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:27:04,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=727, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:27:04,591 INFO L87 Difference]: Start difference. First operand 2421 states and 6131 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:06,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:06,234 INFO L93 Difference]: Finished difference Result 2950 states and 7326 transitions. [2022-01-17 23:27:06,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-17 23:27:06,234 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:27:06,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:06,238 INFO L225 Difference]: With dead ends: 2950 [2022-01-17 23:27:06,238 INFO L226 Difference]: Without dead ends: 2851 [2022-01-17 23:27:06,239 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 601 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=568, Invalid=2624, Unknown=0, NotChecked=0, Total=3192 [2022-01-17 23:27:06,239 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 1099 mSDsluCounter, 2613 mSDsCounter, 0 mSdLazyCounter, 1367 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1099 SdHoareTripleChecker+Valid, 2755 SdHoareTripleChecker+Invalid, 1467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:06,239 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1099 Valid, 2755 Invalid, 1467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1367 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:27:06,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2851 states. [2022-01-17 23:27:06,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2851 to 2617. [2022-01-17 23:27:06,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2617 states, 2616 states have (on average 2.5309633027522938) internal successors, (6621), 2616 states have internal predecessors, (6621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:06,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2617 states to 2617 states and 6621 transitions. [2022-01-17 23:27:06,262 INFO L78 Accepts]: Start accepts. Automaton has 2617 states and 6621 transitions. Word has length 137 [2022-01-17 23:27:06,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:06,263 INFO L470 AbstractCegarLoop]: Abstraction has 2617 states and 6621 transitions. [2022-01-17 23:27:06,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:06,263 INFO L276 IsEmpty]: Start isEmpty. Operand 2617 states and 6621 transitions. [2022-01-17 23:27:06,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:27:06,265 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:06,265 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:06,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2022-01-17 23:27:06,265 INFO L402 AbstractCegarLoop]: === Iteration 143 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:27:06,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:06,265 INFO L85 PathProgramCache]: Analyzing trace with hash -819570973, now seen corresponding path program 99 times [2022-01-17 23:27:06,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:06,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547087140] [2022-01-17 23:27:06,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:06,266 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:06,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:06,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:06,902 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:06,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547087140] [2022-01-17 23:27:06,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547087140] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:06,902 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:06,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-17 23:27:06,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941023089] [2022-01-17 23:27:06,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:06,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-17 23:27:06,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:06,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-17 23:27:06,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=831, Unknown=0, NotChecked=0, Total=930 [2022-01-17 23:27:06,903 INFO L87 Difference]: Start difference. First operand 2617 states and 6621 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:08,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:08,518 INFO L93 Difference]: Finished difference Result 3153 states and 7813 transitions. [2022-01-17 23:27:08,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-17 23:27:08,518 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:27:08,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:08,522 INFO L225 Difference]: With dead ends: 3153 [2022-01-17 23:27:08,522 INFO L226 Difference]: Without dead ends: 2878 [2022-01-17 23:27:08,522 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 614 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=605, Invalid=2817, Unknown=0, NotChecked=0, Total=3422 [2022-01-17 23:27:08,522 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 1192 mSDsluCounter, 3174 mSDsCounter, 0 mSdLazyCounter, 1451 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1192 SdHoareTripleChecker+Valid, 3332 SdHoareTripleChecker+Invalid, 1559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:08,522 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1192 Valid, 3332 Invalid, 1559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1451 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:27:08,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2878 states. [2022-01-17 23:27:08,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2878 to 2659. [2022-01-17 23:27:08,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2659 states, 2658 states have (on average 2.517306245297216) internal successors, (6691), 2658 states have internal predecessors, (6691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:08,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2659 states to 2659 states and 6691 transitions. [2022-01-17 23:27:08,545 INFO L78 Accepts]: Start accepts. Automaton has 2659 states and 6691 transitions. Word has length 137 [2022-01-17 23:27:08,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:08,545 INFO L470 AbstractCegarLoop]: Abstraction has 2659 states and 6691 transitions. [2022-01-17 23:27:08,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:08,545 INFO L276 IsEmpty]: Start isEmpty. Operand 2659 states and 6691 transitions. [2022-01-17 23:27:08,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:27:08,548 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:08,548 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:08,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2022-01-17 23:27:08,548 INFO L402 AbstractCegarLoop]: === Iteration 144 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:27:08,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:08,548 INFO L85 PathProgramCache]: Analyzing trace with hash 125621057, now seen corresponding path program 100 times [2022-01-17 23:27:08,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:08,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753752037] [2022-01-17 23:27:08,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:08,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:08,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:09,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:09,229 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:09,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753752037] [2022-01-17 23:27:09,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753752037] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:09,229 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:09,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2022-01-17 23:27:09,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441302824] [2022-01-17 23:27:09,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:09,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-01-17 23:27:09,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:09,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-01-17 23:27:09,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=961, Unknown=0, NotChecked=0, Total=1056 [2022-01-17 23:27:09,230 INFO L87 Difference]: Start difference. First operand 2659 states and 6691 transitions. Second operand has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:11,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:11,133 INFO L93 Difference]: Finished difference Result 2949 states and 7266 transitions. [2022-01-17 23:27:11,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-17 23:27:11,133 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:27:11,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:11,136 INFO L225 Difference]: With dead ends: 2949 [2022-01-17 23:27:11,136 INFO L226 Difference]: Without dead ends: 2612 [2022-01-17 23:27:11,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 777 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=690, Invalid=3470, Unknown=0, NotChecked=0, Total=4160 [2022-01-17 23:27:11,137 INFO L933 BasicCegarLoop]: 212 mSDtfsCounter, 1128 mSDsluCounter, 3786 mSDsCounter, 0 mSdLazyCounter, 1734 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1128 SdHoareTripleChecker+Valid, 3911 SdHoareTripleChecker+Invalid, 1834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:11,137 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1128 Valid, 3911 Invalid, 1834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1734 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:27:11,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2612 states. [2022-01-17 23:27:11,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2612 to 2393. [2022-01-17 23:27:11,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2393 states, 2392 states have (on average 2.5346989966555182) internal successors, (6063), 2392 states have internal predecessors, (6063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:11,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2393 states to 2393 states and 6063 transitions. [2022-01-17 23:27:11,158 INFO L78 Accepts]: Start accepts. Automaton has 2393 states and 6063 transitions. Word has length 137 [2022-01-17 23:27:11,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:11,158 INFO L470 AbstractCegarLoop]: Abstraction has 2393 states and 6063 transitions. [2022-01-17 23:27:11,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:11,158 INFO L276 IsEmpty]: Start isEmpty. Operand 2393 states and 6063 transitions. [2022-01-17 23:27:11,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:27:11,160 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:11,160 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:11,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2022-01-17 23:27:11,160 INFO L402 AbstractCegarLoop]: === Iteration 145 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:27:11,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:11,161 INFO L85 PathProgramCache]: Analyzing trace with hash 599168469, now seen corresponding path program 101 times [2022-01-17 23:27:11,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:11,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805197497] [2022-01-17 23:27:11,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:11,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:11,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:11,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:11,935 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:11,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805197497] [2022-01-17 23:27:11,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805197497] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:11,935 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:11,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:27:11,935 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841170485] [2022-01-17 23:27:11,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:11,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:27:11,936 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:11,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:27:11,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=730, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:27:11,936 INFO L87 Difference]: Start difference. First operand 2393 states and 6063 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:13,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:13,550 INFO L93 Difference]: Finished difference Result 2688 states and 6633 transitions. [2022-01-17 23:27:13,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:27:13,550 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:27:13,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:13,554 INFO L225 Difference]: With dead ends: 2688 [2022-01-17 23:27:13,554 INFO L226 Difference]: Without dead ends: 2581 [2022-01-17 23:27:13,554 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 529 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=513, Invalid=2349, Unknown=0, NotChecked=0, Total=2862 [2022-01-17 23:27:13,554 INFO L933 BasicCegarLoop]: 176 mSDtfsCounter, 918 mSDsluCounter, 2268 mSDsCounter, 0 mSdLazyCounter, 1343 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 918 SdHoareTripleChecker+Valid, 2386 SdHoareTripleChecker+Invalid, 1429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:13,555 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [918 Valid, 2386 Invalid, 1429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 1343 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:27:13,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2581 states. [2022-01-17 23:27:13,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2581 to 2449. [2022-01-17 23:27:13,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2449 states, 2448 states have (on average 2.5269607843137254) internal successors, (6186), 2448 states have internal predecessors, (6186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:13,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2449 states to 2449 states and 6186 transitions. [2022-01-17 23:27:13,577 INFO L78 Accepts]: Start accepts. Automaton has 2449 states and 6186 transitions. Word has length 137 [2022-01-17 23:27:13,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:13,577 INFO L470 AbstractCegarLoop]: Abstraction has 2449 states and 6186 transitions. [2022-01-17 23:27:13,577 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:13,577 INFO L276 IsEmpty]: Start isEmpty. Operand 2449 states and 6186 transitions. [2022-01-17 23:27:13,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:27:13,579 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:13,580 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:13,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2022-01-17 23:27:13,580 INFO L402 AbstractCegarLoop]: === Iteration 146 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:27:13,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:13,586 INFO L85 PathProgramCache]: Analyzing trace with hash 144152085, now seen corresponding path program 102 times [2022-01-17 23:27:13,586 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:13,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928590421] [2022-01-17 23:27:13,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:13,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:13,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:14,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:14,337 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:14,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928590421] [2022-01-17 23:27:14,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928590421] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:14,337 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:14,337 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:27:14,337 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529811915] [2022-01-17 23:27:14,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:14,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:27:14,338 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:14,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:27:14,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=729, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:27:14,338 INFO L87 Difference]: Start difference. First operand 2449 states and 6186 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:16,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:16,679 INFO L93 Difference]: Finished difference Result 2690 states and 6638 transitions. [2022-01-17 23:27:16,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-17 23:27:16,680 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:27:16,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:16,683 INFO L225 Difference]: With dead ends: 2690 [2022-01-17 23:27:16,683 INFO L226 Difference]: Without dead ends: 2589 [2022-01-17 23:27:16,683 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 573 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=555, Invalid=2525, Unknown=0, NotChecked=0, Total=3080 [2022-01-17 23:27:16,683 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 1027 mSDsluCounter, 2711 mSDsCounter, 0 mSdLazyCounter, 1473 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1027 SdHoareTripleChecker+Valid, 2833 SdHoareTripleChecker+Invalid, 1564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:16,683 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1027 Valid, 2833 Invalid, 1564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1473 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:27:16,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2589 states. [2022-01-17 23:27:16,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2589 to 2463. [2022-01-17 23:27:16,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2463 states, 2462 states have (on average 2.5235580828594637) internal successors, (6213), 2462 states have internal predecessors, (6213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:16,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2463 states to 2463 states and 6213 transitions. [2022-01-17 23:27:16,705 INFO L78 Accepts]: Start accepts. Automaton has 2463 states and 6213 transitions. Word has length 137 [2022-01-17 23:27:16,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:16,705 INFO L470 AbstractCegarLoop]: Abstraction has 2463 states and 6213 transitions. [2022-01-17 23:27:16,705 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:16,705 INFO L276 IsEmpty]: Start isEmpty. Operand 2463 states and 6213 transitions. [2022-01-17 23:27:16,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:27:16,707 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:16,708 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:16,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2022-01-17 23:27:16,708 INFO L402 AbstractCegarLoop]: === Iteration 147 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:27:16,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:16,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1477890453, now seen corresponding path program 103 times [2022-01-17 23:27:16,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:16,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320830859] [2022-01-17 23:27:16,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:16,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:16,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:17,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:17,520 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:17,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320830859] [2022-01-17 23:27:17,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320830859] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:17,520 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:17,520 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2022-01-17 23:27:17,520 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716553830] [2022-01-17 23:27:17,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:17,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-01-17 23:27:17,520 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:17,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-01-17 23:27:17,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=892, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:27:17,521 INFO L87 Difference]: Start difference. First operand 2463 states and 6213 transitions. Second operand has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:19,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:19,892 INFO L93 Difference]: Finished difference Result 2948 states and 7300 transitions. [2022-01-17 23:27:19,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-17 23:27:19,892 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:27:19,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:19,896 INFO L225 Difference]: With dead ends: 2948 [2022-01-17 23:27:19,896 INFO L226 Difference]: Without dead ends: 2849 [2022-01-17 23:27:19,896 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 837 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=701, Invalid=3331, Unknown=0, NotChecked=0, Total=4032 [2022-01-17 23:27:19,896 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 1417 mSDsluCounter, 2649 mSDsCounter, 0 mSdLazyCounter, 1516 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1417 SdHoareTripleChecker+Valid, 2786 SdHoareTripleChecker+Invalid, 1642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 1516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:19,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1417 Valid, 2786 Invalid, 1642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 1516 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:27:19,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2849 states. [2022-01-17 23:27:19,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2849 to 2659. [2022-01-17 23:27:19,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2659 states, 2658 states have (on average 2.521820917983446) internal successors, (6703), 2658 states have internal predecessors, (6703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:19,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2659 states to 2659 states and 6703 transitions. [2022-01-17 23:27:19,920 INFO L78 Accepts]: Start accepts. Automaton has 2659 states and 6703 transitions. Word has length 137 [2022-01-17 23:27:19,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:19,920 INFO L470 AbstractCegarLoop]: Abstraction has 2659 states and 6703 transitions. [2022-01-17 23:27:19,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:19,920 INFO L276 IsEmpty]: Start isEmpty. Operand 2659 states and 6703 transitions. [2022-01-17 23:27:19,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:27:19,922 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:19,922 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:19,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2022-01-17 23:27:19,922 INFO L402 AbstractCegarLoop]: === Iteration 148 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:27:19,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:19,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1685944597, now seen corresponding path program 104 times [2022-01-17 23:27:19,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:19,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997558763] [2022-01-17 23:27:19,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:19,923 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:19,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:20,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:20,809 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:20,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997558763] [2022-01-17 23:27:20,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997558763] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:20,809 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:20,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-17 23:27:20,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309402721] [2022-01-17 23:27:20,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:20,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-17 23:27:20,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:20,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-17 23:27:20,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=831, Unknown=0, NotChecked=0, Total=930 [2022-01-17 23:27:20,810 INFO L87 Difference]: Start difference. First operand 2659 states and 6703 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:23,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:23,062 INFO L93 Difference]: Finished difference Result 3151 states and 7787 transitions. [2022-01-17 23:27:23,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:27:23,063 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:27:23,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:23,065 INFO L225 Difference]: With dead ends: 3151 [2022-01-17 23:27:23,065 INFO L226 Difference]: Without dead ends: 2876 [2022-01-17 23:27:23,066 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 565 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=565, Invalid=2627, Unknown=0, NotChecked=0, Total=3192 [2022-01-17 23:27:23,066 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 1315 mSDsluCounter, 3002 mSDsCounter, 0 mSdLazyCounter, 1425 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1315 SdHoareTripleChecker+Valid, 3164 SdHoareTripleChecker+Invalid, 1548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 1425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:23,066 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1315 Valid, 3164 Invalid, 1548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 1425 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:27:23,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2876 states. [2022-01-17 23:27:23,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2876 to 2701. [2022-01-17 23:27:23,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2701 states, 2700 states have (on average 2.5085185185185184) internal successors, (6773), 2700 states have internal predecessors, (6773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:23,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2701 states to 2701 states and 6773 transitions. [2022-01-17 23:27:23,088 INFO L78 Accepts]: Start accepts. Automaton has 2701 states and 6773 transitions. Word has length 137 [2022-01-17 23:27:23,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:23,088 INFO L470 AbstractCegarLoop]: Abstraction has 2701 states and 6773 transitions. [2022-01-17 23:27:23,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:23,088 INFO L276 IsEmpty]: Start isEmpty. Operand 2701 states and 6773 transitions. [2022-01-17 23:27:23,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:27:23,091 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:23,091 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:23,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2022-01-17 23:27:23,091 INFO L402 AbstractCegarLoop]: === Iteration 149 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:27:23,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:23,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1663830669, now seen corresponding path program 105 times [2022-01-17 23:27:23,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:23,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144913739] [2022-01-17 23:27:23,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:23,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:23,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:23,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:23,961 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:23,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144913739] [2022-01-17 23:27:23,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144913739] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:23,962 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:23,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2022-01-17 23:27:23,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674835166] [2022-01-17 23:27:23,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:23,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-01-17 23:27:23,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:23,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-01-17 23:27:23,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=911, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:27:23,962 INFO L87 Difference]: Start difference. First operand 2701 states and 6773 transitions. Second operand has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:26,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:26,828 INFO L93 Difference]: Finished difference Result 2947 states and 7240 transitions. [2022-01-17 23:27:26,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-17 23:27:26,828 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:27:26,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:26,831 INFO L225 Difference]: With dead ends: 2947 [2022-01-17 23:27:26,831 INFO L226 Difference]: Without dead ends: 2540 [2022-01-17 23:27:26,832 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 794 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=736, Invalid=3554, Unknown=0, NotChecked=0, Total=4290 [2022-01-17 23:27:26,832 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 1559 mSDsluCounter, 2826 mSDsCounter, 0 mSdLazyCounter, 1464 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1559 SdHoareTripleChecker+Valid, 2969 SdHoareTripleChecker+Invalid, 1605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 1464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:26,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1559 Valid, 2969 Invalid, 1605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 1464 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:27:26,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2540 states. [2022-01-17 23:27:26,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2540 to 2365. [2022-01-17 23:27:26,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2365 states, 2364 states have (on average 2.524534686971235) internal successors, (5968), 2364 states have internal predecessors, (5968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:26,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2365 states to 2365 states and 5968 transitions. [2022-01-17 23:27:26,852 INFO L78 Accepts]: Start accepts. Automaton has 2365 states and 5968 transitions. Word has length 137 [2022-01-17 23:27:26,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:26,852 INFO L470 AbstractCegarLoop]: Abstraction has 2365 states and 5968 transitions. [2022-01-17 23:27:26,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:26,853 INFO L276 IsEmpty]: Start isEmpty. Operand 2365 states and 5968 transitions. [2022-01-17 23:27:26,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:27:26,854 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:26,855 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:26,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2022-01-17 23:27:26,855 INFO L402 AbstractCegarLoop]: === Iteration 150 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:27:26,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:26,855 INFO L85 PathProgramCache]: Analyzing trace with hash -308055753, now seen corresponding path program 106 times [2022-01-17 23:27:26,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:26,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212568815] [2022-01-17 23:27:26,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:26,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:26,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:27,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:27,566 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:27,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212568815] [2022-01-17 23:27:27,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212568815] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:27,566 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:27,566 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-17 23:27:27,566 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467539572] [2022-01-17 23:27:27,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:27,566 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-17 23:27:27,567 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:27,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-17 23:27:27,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2022-01-17 23:27:27,567 INFO L87 Difference]: Start difference. First operand 2365 states and 5968 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:29,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:29,319 INFO L93 Difference]: Finished difference Result 2573 states and 6358 transitions. [2022-01-17 23:27:29,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:27:29,319 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:27:29,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:29,322 INFO L225 Difference]: With dead ends: 2573 [2022-01-17 23:27:29,322 INFO L226 Difference]: Without dead ends: 2427 [2022-01-17 23:27:29,323 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 443 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=498, Invalid=2258, Unknown=0, NotChecked=0, Total=2756 [2022-01-17 23:27:29,323 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 1064 mSDsluCounter, 2151 mSDsCounter, 0 mSdLazyCounter, 1263 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1064 SdHoareTripleChecker+Valid, 2240 SdHoareTripleChecker+Invalid, 1365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:29,323 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1064 Valid, 2240 Invalid, 1365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1263 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:27:29,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2427 states. [2022-01-17 23:27:29,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2427 to 2363. [2022-01-17 23:27:29,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2363 states, 2362 states have (on average 2.52497883149873) internal successors, (5964), 2362 states have internal predecessors, (5964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:29,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2363 states to 2363 states and 5964 transitions. [2022-01-17 23:27:29,343 INFO L78 Accepts]: Start accepts. Automaton has 2363 states and 5964 transitions. Word has length 137 [2022-01-17 23:27:29,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:29,343 INFO L470 AbstractCegarLoop]: Abstraction has 2363 states and 5964 transitions. [2022-01-17 23:27:29,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:29,343 INFO L276 IsEmpty]: Start isEmpty. Operand 2363 states and 5964 transitions. [2022-01-17 23:27:29,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:27:29,345 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:29,345 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:29,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2022-01-17 23:27:29,345 INFO L402 AbstractCegarLoop]: === Iteration 151 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:27:29,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:29,345 INFO L85 PathProgramCache]: Analyzing trace with hash 7735223, now seen corresponding path program 107 times [2022-01-17 23:27:29,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:29,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979603220] [2022-01-17 23:27:29,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:29,346 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:29,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:29,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:29,974 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:29,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979603220] [2022-01-17 23:27:29,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979603220] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:29,974 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:29,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:27:29,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85458984] [2022-01-17 23:27:29,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:29,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:27:29,975 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:29,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:27:29,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=730, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:27:29,975 INFO L87 Difference]: Start difference. First operand 2363 states and 5964 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:31,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:31,948 INFO L93 Difference]: Finished difference Result 2613 states and 6433 transitions. [2022-01-17 23:27:31,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:27:31,948 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:27:31,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:31,951 INFO L225 Difference]: With dead ends: 2613 [2022-01-17 23:27:31,952 INFO L226 Difference]: Without dead ends: 2469 [2022-01-17 23:27:31,952 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 529 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=513, Invalid=2349, Unknown=0, NotChecked=0, Total=2862 [2022-01-17 23:27:31,952 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 1035 mSDsluCounter, 2508 mSDsCounter, 0 mSdLazyCounter, 1527 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1035 SdHoareTripleChecker+Valid, 2602 SdHoareTripleChecker+Invalid, 1623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:31,952 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1035 Valid, 2602 Invalid, 1623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 1527 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:27:31,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2469 states. [2022-01-17 23:27:31,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2469 to 2403. [2022-01-17 23:27:31,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2403 states, 2402 states have (on average 2.5149875104079933) internal successors, (6041), 2402 states have internal predecessors, (6041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:31,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2403 states to 2403 states and 6041 transitions. [2022-01-17 23:27:31,972 INFO L78 Accepts]: Start accepts. Automaton has 2403 states and 6041 transitions. Word has length 137 [2022-01-17 23:27:31,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:31,972 INFO L470 AbstractCegarLoop]: Abstraction has 2403 states and 6041 transitions. [2022-01-17 23:27:31,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:31,972 INFO L276 IsEmpty]: Start isEmpty. Operand 2403 states and 6041 transitions. [2022-01-17 23:27:31,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:27:31,975 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:31,975 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:31,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2022-01-17 23:27:31,975 INFO L402 AbstractCegarLoop]: === Iteration 152 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:27:31,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:31,975 INFO L85 PathProgramCache]: Analyzing trace with hash 314761491, now seen corresponding path program 108 times [2022-01-17 23:27:31,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:31,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526578477] [2022-01-17 23:27:31,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:31,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:32,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:32,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:32,889 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:32,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526578477] [2022-01-17 23:27:32,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526578477] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:32,890 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:32,890 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-17 23:27:32,890 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208574399] [2022-01-17 23:27:32,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:32,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-17 23:27:32,890 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:32,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-17 23:27:32,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1009, Unknown=0, NotChecked=0, Total=1122 [2022-01-17 23:27:32,890 INFO L87 Difference]: Start difference. First operand 2403 states and 6041 transitions. Second operand has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:34,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:34,895 INFO L93 Difference]: Finished difference Result 2889 states and 7136 transitions. [2022-01-17 23:27:34,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-17 23:27:34,895 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:27:34,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:34,898 INFO L225 Difference]: With dead ends: 2889 [2022-01-17 23:27:34,898 INFO L226 Difference]: Without dead ends: 2755 [2022-01-17 23:27:34,899 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 820 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=673, Invalid=3359, Unknown=0, NotChecked=0, Total=4032 [2022-01-17 23:27:34,899 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 1467 mSDsluCounter, 3153 mSDsCounter, 0 mSdLazyCounter, 1759 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1467 SdHoareTripleChecker+Valid, 3259 SdHoareTripleChecker+Invalid, 1902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 1759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:34,899 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1467 Valid, 3259 Invalid, 1902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 1759 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:27:34,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2755 states. [2022-01-17 23:27:34,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2755 to 2613. [2022-01-17 23:27:34,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2613 states, 2612 states have (on average 2.511102603369066) internal successors, (6559), 2612 states have internal predecessors, (6559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:34,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2613 states to 2613 states and 6559 transitions. [2022-01-17 23:27:34,921 INFO L78 Accepts]: Start accepts. Automaton has 2613 states and 6559 transitions. Word has length 137 [2022-01-17 23:27:34,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:34,921 INFO L470 AbstractCegarLoop]: Abstraction has 2613 states and 6559 transitions. [2022-01-17 23:27:34,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:34,921 INFO L276 IsEmpty]: Start isEmpty. Operand 2613 states and 6559 transitions. [2022-01-17 23:27:34,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:27:34,924 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:34,924 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:34,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2022-01-17 23:27:34,924 INFO L402 AbstractCegarLoop]: === Iteration 153 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:27:34,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:34,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1706772407, now seen corresponding path program 109 times [2022-01-17 23:27:34,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:34,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885717317] [2022-01-17 23:27:34,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:34,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:34,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:35,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:35,772 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:35,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885717317] [2022-01-17 23:27:35,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885717317] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:35,773 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:35,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-17 23:27:35,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372856342] [2022-01-17 23:27:35,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:35,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-17 23:27:35,773 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:35,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-17 23:27:35,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1009, Unknown=0, NotChecked=0, Total=1122 [2022-01-17 23:27:35,774 INFO L87 Difference]: Start difference. First operand 2613 states and 6559 transitions. Second operand has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:37,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:37,891 INFO L93 Difference]: Finished difference Result 3153 states and 7726 transitions. [2022-01-17 23:27:37,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-17 23:27:37,891 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:27:37,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:37,894 INFO L225 Difference]: With dead ends: 3153 [2022-01-17 23:27:37,894 INFO L226 Difference]: Without dead ends: 2570 [2022-01-17 23:27:37,895 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 954 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=772, Invalid=3784, Unknown=0, NotChecked=0, Total=4556 [2022-01-17 23:27:37,895 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 1478 mSDsluCounter, 4030 mSDsCounter, 0 mSdLazyCounter, 1957 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1478 SdHoareTripleChecker+Valid, 4141 SdHoareTripleChecker+Invalid, 2111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 1957 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:37,895 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1478 Valid, 4141 Invalid, 2111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 1957 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:27:37,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2570 states. [2022-01-17 23:27:37,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2570 to 2417. [2022-01-17 23:27:37,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2417 states, 2416 states have (on average 2.506208609271523) internal successors, (6055), 2416 states have internal predecessors, (6055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:37,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2417 states to 2417 states and 6055 transitions. [2022-01-17 23:27:37,917 INFO L78 Accepts]: Start accepts. Automaton has 2417 states and 6055 transitions. Word has length 137 [2022-01-17 23:27:37,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:37,917 INFO L470 AbstractCegarLoop]: Abstraction has 2417 states and 6055 transitions. [2022-01-17 23:27:37,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:37,917 INFO L276 IsEmpty]: Start isEmpty. Operand 2417 states and 6055 transitions. [2022-01-17 23:27:37,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:27:37,919 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:37,919 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:37,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2022-01-17 23:27:37,919 INFO L402 AbstractCegarLoop]: === Iteration 154 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:27:37,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:37,920 INFO L85 PathProgramCache]: Analyzing trace with hash 552562293, now seen corresponding path program 110 times [2022-01-17 23:27:37,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:37,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877041607] [2022-01-17 23:27:37,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:37,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:37,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:38,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:38,576 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:38,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877041607] [2022-01-17 23:27:38,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877041607] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:38,576 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:38,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-17 23:27:38,576 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958737245] [2022-01-17 23:27:38,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:38,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-17 23:27:38,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:38,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-17 23:27:38,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1009, Unknown=0, NotChecked=0, Total=1122 [2022-01-17 23:27:38,577 INFO L87 Difference]: Start difference. First operand 2417 states and 6055 transitions. Second operand has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:40,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:40,946 INFO L93 Difference]: Finished difference Result 2605 states and 6403 transitions. [2022-01-17 23:27:40,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-17 23:27:40,946 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:27:40,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:40,949 INFO L225 Difference]: With dead ends: 2605 [2022-01-17 23:27:40,949 INFO L226 Difference]: Without dead ends: 2323 [2022-01-17 23:27:40,949 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 821 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=679, Invalid=3353, Unknown=0, NotChecked=0, Total=4032 [2022-01-17 23:27:40,950 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 1212 mSDsluCounter, 3007 mSDsCounter, 0 mSdLazyCounter, 1670 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1212 SdHoareTripleChecker+Valid, 3090 SdHoareTripleChecker+Invalid, 1784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 1670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:40,950 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1212 Valid, 3090 Invalid, 1784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 1670 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:27:40,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2323 states. [2022-01-17 23:27:40,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2323 to 2271. [2022-01-17 23:27:40,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2271 states, 2270 states have (on average 2.530396475770925) internal successors, (5744), 2270 states have internal predecessors, (5744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:40,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2271 states to 2271 states and 5744 transitions. [2022-01-17 23:27:40,969 INFO L78 Accepts]: Start accepts. Automaton has 2271 states and 5744 transitions. Word has length 137 [2022-01-17 23:27:40,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:40,969 INFO L470 AbstractCegarLoop]: Abstraction has 2271 states and 5744 transitions. [2022-01-17 23:27:40,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:40,969 INFO L276 IsEmpty]: Start isEmpty. Operand 2271 states and 5744 transitions. [2022-01-17 23:27:40,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:27:40,971 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:40,971 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:40,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2022-01-17 23:27:40,972 INFO L402 AbstractCegarLoop]: === Iteration 155 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:27:40,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:40,972 INFO L85 PathProgramCache]: Analyzing trace with hash 165087521, now seen corresponding path program 111 times [2022-01-17 23:27:40,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:40,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783053771] [2022-01-17 23:27:40,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:40,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:41,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:41,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:41,738 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:41,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783053771] [2022-01-17 23:27:41,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783053771] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:41,738 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:41,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:27:41,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730797658] [2022-01-17 23:27:41,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:41,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:27:41,738 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:41,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:27:41,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=732, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:27:41,739 INFO L87 Difference]: Start difference. First operand 2271 states and 5744 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:43,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:43,877 INFO L93 Difference]: Finished difference Result 2539 states and 6267 transitions. [2022-01-17 23:27:43,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:27:43,878 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:27:43,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:43,880 INFO L225 Difference]: With dead ends: 2539 [2022-01-17 23:27:43,880 INFO L226 Difference]: Without dead ends: 2390 [2022-01-17 23:27:43,881 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 587 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=525, Invalid=2445, Unknown=0, NotChecked=0, Total=2970 [2022-01-17 23:27:43,881 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 1149 mSDsluCounter, 1928 mSDsCounter, 0 mSdLazyCounter, 1259 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1149 SdHoareTripleChecker+Valid, 1982 SdHoareTripleChecker+Invalid, 1355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:43,881 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1149 Valid, 1982 Invalid, 1355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 1259 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:27:43,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2390 states. [2022-01-17 23:27:43,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2390 to 2281. [2022-01-17 23:27:43,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2281 states, 2280 states have (on average 2.5293859649122807) internal successors, (5767), 2280 states have internal predecessors, (5767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:43,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2281 states to 2281 states and 5767 transitions. [2022-01-17 23:27:43,941 INFO L78 Accepts]: Start accepts. Automaton has 2281 states and 5767 transitions. Word has length 137 [2022-01-17 23:27:43,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:43,941 INFO L470 AbstractCegarLoop]: Abstraction has 2281 states and 5767 transitions. [2022-01-17 23:27:43,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:43,941 INFO L276 IsEmpty]: Start isEmpty. Operand 2281 states and 5767 transitions. [2022-01-17 23:27:43,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:27:43,944 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:43,944 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:43,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2022-01-17 23:27:43,944 INFO L402 AbstractCegarLoop]: === Iteration 156 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:27:43,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:43,945 INFO L85 PathProgramCache]: Analyzing trace with hash -622559491, now seen corresponding path program 112 times [2022-01-17 23:27:43,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:43,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025375567] [2022-01-17 23:27:43,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:43,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:43,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:44,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:44,840 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:44,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025375567] [2022-01-17 23:27:44,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025375567] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:44,840 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:44,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2022-01-17 23:27:44,840 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055248608] [2022-01-17 23:27:44,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:44,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-01-17 23:27:44,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:44,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-01-17 23:27:44,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=970, Unknown=0, NotChecked=0, Total=1056 [2022-01-17 23:27:44,841 INFO L87 Difference]: Start difference. First operand 2281 states and 5767 transitions. Second operand has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:47,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:47,774 INFO L93 Difference]: Finished difference Result 2469 states and 6117 transitions. [2022-01-17 23:27:47,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-17 23:27:47,774 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:27:47,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:47,777 INFO L225 Difference]: With dead ends: 2469 [2022-01-17 23:27:47,777 INFO L226 Difference]: Without dead ends: 2331 [2022-01-17 23:27:47,777 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 823 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=724, Invalid=3698, Unknown=0, NotChecked=0, Total=4422 [2022-01-17 23:27:47,778 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 991 mSDsluCounter, 2295 mSDsCounter, 0 mSdLazyCounter, 1626 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 991 SdHoareTripleChecker+Valid, 2328 SdHoareTripleChecker+Invalid, 1709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 1626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:47,778 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [991 Valid, 2328 Invalid, 1709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 1626 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:27:47,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2331 states. [2022-01-17 23:27:47,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2331 to 2279. [2022-01-17 23:27:47,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2279 states, 2278 states have (on average 2.5294117647058822) internal successors, (5762), 2278 states have internal predecessors, (5762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:47,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2279 states to 2279 states and 5762 transitions. [2022-01-17 23:27:47,797 INFO L78 Accepts]: Start accepts. Automaton has 2279 states and 5762 transitions. Word has length 137 [2022-01-17 23:27:47,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:47,797 INFO L470 AbstractCegarLoop]: Abstraction has 2279 states and 5762 transitions. [2022-01-17 23:27:47,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:47,797 INFO L276 IsEmpty]: Start isEmpty. Operand 2279 states and 5762 transitions. [2022-01-17 23:27:47,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:27:47,799 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:47,799 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:47,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2022-01-17 23:27:47,799 INFO L402 AbstractCegarLoop]: === Iteration 157 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:27:47,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:47,800 INFO L85 PathProgramCache]: Analyzing trace with hash 524593979, now seen corresponding path program 113 times [2022-01-17 23:27:47,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:47,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130877141] [2022-01-17 23:27:47,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:47,800 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:47,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:48,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:48,502 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:48,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130877141] [2022-01-17 23:27:48,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130877141] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:48,502 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:48,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-17 23:27:48,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093182530] [2022-01-17 23:27:48,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:48,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-17 23:27:48,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:48,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-17 23:27:48,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=793, Unknown=0, NotChecked=0, Total=870 [2022-01-17 23:27:48,503 INFO L87 Difference]: Start difference. First operand 2279 states and 5762 transitions. Second operand has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:50,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:50,396 INFO L93 Difference]: Finished difference Result 2467 states and 6112 transitions. [2022-01-17 23:27:50,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:27:50,397 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:27:50,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:50,399 INFO L225 Difference]: With dead ends: 2467 [2022-01-17 23:27:50,399 INFO L226 Difference]: Without dead ends: 2319 [2022-01-17 23:27:50,400 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 520 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=525, Invalid=2445, Unknown=0, NotChecked=0, Total=2970 [2022-01-17 23:27:50,400 INFO L933 BasicCegarLoop]: 140 mSDtfsCounter, 913 mSDsluCounter, 2312 mSDsCounter, 0 mSdLazyCounter, 1620 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 913 SdHoareTripleChecker+Valid, 2355 SdHoareTripleChecker+Invalid, 1705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:50,400 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [913 Valid, 2355 Invalid, 1705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1620 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:27:50,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2319 states. [2022-01-17 23:27:50,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2319 to 2275. [2022-01-17 23:27:50,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2275 states, 2274 states have (on average 2.5259454705364996) internal successors, (5744), 2274 states have internal predecessors, (5744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:50,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2275 states to 2275 states and 5744 transitions. [2022-01-17 23:27:50,419 INFO L78 Accepts]: Start accepts. Automaton has 2275 states and 5744 transitions. Word has length 137 [2022-01-17 23:27:50,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:50,419 INFO L470 AbstractCegarLoop]: Abstraction has 2275 states and 5744 transitions. [2022-01-17 23:27:50,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:50,419 INFO L276 IsEmpty]: Start isEmpty. Operand 2275 states and 5744 transitions. [2022-01-17 23:27:50,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:27:50,421 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:50,421 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:50,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2022-01-17 23:27:50,421 INFO L402 AbstractCegarLoop]: === Iteration 158 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:27:50,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:50,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1084184675, now seen corresponding path program 114 times [2022-01-17 23:27:50,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:50,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077762386] [2022-01-17 23:27:50,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:50,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:50,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:51,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:51,027 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:51,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077762386] [2022-01-17 23:27:51,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077762386] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:51,027 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:51,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:27:51,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299873239] [2022-01-17 23:27:51,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:51,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:27:51,027 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:51,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:27:51,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=732, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:27:51,028 INFO L87 Difference]: Start difference. First operand 2275 states and 5744 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:52,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:52,687 INFO L93 Difference]: Finished difference Result 2530 states and 6244 transitions. [2022-01-17 23:27:52,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-17 23:27:52,687 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:27:52,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:52,690 INFO L225 Difference]: With dead ends: 2530 [2022-01-17 23:27:52,690 INFO L226 Difference]: Without dead ends: 2336 [2022-01-17 23:27:52,690 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 632 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=541, Invalid=2539, Unknown=0, NotChecked=0, Total=3080 [2022-01-17 23:27:52,691 INFO L933 BasicCegarLoop]: 152 mSDtfsCounter, 1003 mSDsluCounter, 2272 mSDsCounter, 0 mSdLazyCounter, 1429 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1003 SdHoareTripleChecker+Valid, 2321 SdHoareTripleChecker+Invalid, 1517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:52,691 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1003 Valid, 2321 Invalid, 1517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1429 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:27:52,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2336 states. [2022-01-17 23:27:52,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2336 to 2230. [2022-01-17 23:27:52,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2230 states, 2229 states have (on average 2.5298340062808435) internal successors, (5639), 2229 states have internal predecessors, (5639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:52,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2230 states to 2230 states and 5639 transitions. [2022-01-17 23:27:52,710 INFO L78 Accepts]: Start accepts. Automaton has 2230 states and 5639 transitions. Word has length 137 [2022-01-17 23:27:52,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:52,710 INFO L470 AbstractCegarLoop]: Abstraction has 2230 states and 5639 transitions. [2022-01-17 23:27:52,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:52,710 INFO L276 IsEmpty]: Start isEmpty. Operand 2230 states and 5639 transitions. [2022-01-17 23:27:52,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:27:52,712 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:52,712 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:52,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2022-01-17 23:27:52,712 INFO L402 AbstractCegarLoop]: === Iteration 159 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:27:52,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:52,713 INFO L85 PathProgramCache]: Analyzing trace with hash -220818561, now seen corresponding path program 115 times [2022-01-17 23:27:52,713 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:52,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684798168] [2022-01-17 23:27:52,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:52,713 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:52,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:53,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:53,302 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:53,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684798168] [2022-01-17 23:27:53,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684798168] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:53,302 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:53,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-17 23:27:53,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993855817] [2022-01-17 23:27:53,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:53,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-17 23:27:53,302 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:53,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-17 23:27:53,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=793, Unknown=0, NotChecked=0, Total=870 [2022-01-17 23:27:53,303 INFO L87 Difference]: Start difference. First operand 2230 states and 5639 transitions. Second operand has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:55,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:55,331 INFO L93 Difference]: Finished difference Result 2478 states and 6122 transitions. [2022-01-17 23:27:55,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-17 23:27:55,331 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:27:55,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:55,334 INFO L225 Difference]: With dead ends: 2478 [2022-01-17 23:27:55,334 INFO L226 Difference]: Without dead ends: 2329 [2022-01-17 23:27:55,335 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 578 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=555, Invalid=2637, Unknown=0, NotChecked=0, Total=3192 [2022-01-17 23:27:55,335 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 1143 mSDsluCounter, 1999 mSDsCounter, 0 mSdLazyCounter, 1294 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1143 SdHoareTripleChecker+Valid, 2064 SdHoareTripleChecker+Invalid, 1398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 1294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:55,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1143 Valid, 2064 Invalid, 1398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 1294 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:27:55,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2329 states. [2022-01-17 23:27:55,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2329 to 2232. [2022-01-17 23:27:55,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2232 states, 2231 states have (on average 2.5289108023307936) internal successors, (5642), 2231 states have internal predecessors, (5642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:55,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2232 states to 2232 states and 5642 transitions. [2022-01-17 23:27:55,354 INFO L78 Accepts]: Start accepts. Automaton has 2232 states and 5642 transitions. Word has length 137 [2022-01-17 23:27:55,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:55,354 INFO L470 AbstractCegarLoop]: Abstraction has 2232 states and 5642 transitions. [2022-01-17 23:27:55,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:55,354 INFO L276 IsEmpty]: Start isEmpty. Operand 2232 states and 5642 transitions. [2022-01-17 23:27:55,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:27:55,356 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:55,356 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:55,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2022-01-17 23:27:55,356 INFO L402 AbstractCegarLoop]: === Iteration 160 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:27:55,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:55,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1008465573, now seen corresponding path program 116 times [2022-01-17 23:27:55,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:55,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468613788] [2022-01-17 23:27:55,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:55,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:55,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:55,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:55,969 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:55,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468613788] [2022-01-17 23:27:55,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468613788] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:55,969 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:55,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-17 23:27:55,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931580212] [2022-01-17 23:27:55,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:55,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-17 23:27:55,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:55,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-17 23:27:55,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=793, Unknown=0, NotChecked=0, Total=870 [2022-01-17 23:27:55,970 INFO L87 Difference]: Start difference. First operand 2232 states and 5642 transitions. Second operand has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:57,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:57,931 INFO L93 Difference]: Finished difference Result 2404 states and 5966 transitions. [2022-01-17 23:27:57,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:27:57,931 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:27:57,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:57,934 INFO L225 Difference]: With dead ends: 2404 [2022-01-17 23:27:57,934 INFO L226 Difference]: Without dead ends: 2242 [2022-01-17 23:27:57,935 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 545 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=547, Invalid=2533, Unknown=0, NotChecked=0, Total=3080 [2022-01-17 23:27:57,941 INFO L933 BasicCegarLoop]: 143 mSDtfsCounter, 948 mSDsluCounter, 2177 mSDsCounter, 0 mSdLazyCounter, 1401 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 948 SdHoareTripleChecker+Valid, 2226 SdHoareTripleChecker+Invalid, 1483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:57,941 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [948 Valid, 2226 Invalid, 1483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1401 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:27:57,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2242 states. [2022-01-17 23:27:57,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2242 to 2206. [2022-01-17 23:27:57,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2206 states, 2205 states have (on average 2.5328798185941044) internal successors, (5585), 2205 states have internal predecessors, (5585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:57,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2206 states to 2206 states and 5585 transitions. [2022-01-17 23:27:57,962 INFO L78 Accepts]: Start accepts. Automaton has 2206 states and 5585 transitions. Word has length 137 [2022-01-17 23:27:57,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:57,962 INFO L470 AbstractCegarLoop]: Abstraction has 2206 states and 5585 transitions. [2022-01-17 23:27:57,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:57,962 INFO L276 IsEmpty]: Start isEmpty. Operand 2206 states and 5585 transitions. [2022-01-17 23:27:57,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:27:57,964 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:57,964 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:57,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2022-01-17 23:27:57,964 INFO L402 AbstractCegarLoop]: === Iteration 161 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:27:57,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:57,965 INFO L85 PathProgramCache]: Analyzing trace with hash 113023171, now seen corresponding path program 117 times [2022-01-17 23:27:57,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:57,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746874544] [2022-01-17 23:27:57,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:57,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:58,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:58,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:58,502 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:58,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746874544] [2022-01-17 23:27:58,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746874544] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:58,502 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:58,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-17 23:27:58,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037520539] [2022-01-17 23:27:58,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:58,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-17 23:27:58,502 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:58,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-17 23:27:58,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2022-01-17 23:27:58,503 INFO L87 Difference]: Start difference. First operand 2206 states and 5585 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:59,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:59,855 INFO L93 Difference]: Finished difference Result 2345 states and 5840 transitions. [2022-01-17 23:27:59,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:27:59,855 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:27:59,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:59,858 INFO L225 Difference]: With dead ends: 2345 [2022-01-17 23:27:59,858 INFO L226 Difference]: Without dead ends: 2228 [2022-01-17 23:27:59,859 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 470 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=501, Invalid=2255, Unknown=0, NotChecked=0, Total=2756 [2022-01-17 23:27:59,859 INFO L933 BasicCegarLoop]: 134 mSDtfsCounter, 848 mSDsluCounter, 1797 mSDsCounter, 0 mSdLazyCounter, 1121 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 848 SdHoareTripleChecker+Valid, 1877 SdHoareTripleChecker+Invalid, 1197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 1121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:59,859 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [848 Valid, 1877 Invalid, 1197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 1121 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:27:59,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2228 states. [2022-01-17 23:27:59,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2228 to 2196. [2022-01-17 23:27:59,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2196 states, 2195 states have (on average 2.5348519362186788) internal successors, (5564), 2195 states have internal predecessors, (5564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:59,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2196 states to 2196 states and 5564 transitions. [2022-01-17 23:27:59,879 INFO L78 Accepts]: Start accepts. Automaton has 2196 states and 5564 transitions. Word has length 137 [2022-01-17 23:27:59,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:59,879 INFO L470 AbstractCegarLoop]: Abstraction has 2196 states and 5564 transitions. [2022-01-17 23:27:59,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:59,879 INFO L276 IsEmpty]: Start isEmpty. Operand 2196 states and 5564 transitions. [2022-01-17 23:27:59,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:27:59,881 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:59,881 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:59,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2022-01-17 23:27:59,882 INFO L402 AbstractCegarLoop]: === Iteration 162 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:27:59,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:59,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1541186335, now seen corresponding path program 118 times [2022-01-17 23:27:59,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:59,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565323509] [2022-01-17 23:27:59,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:59,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:59,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:00,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:00,625 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:00,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565323509] [2022-01-17 23:28:00,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565323509] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:00,625 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:00,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-17 23:28:00,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302832658] [2022-01-17 23:28:00,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:00,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-17 23:28:00,626 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:00,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-17 23:28:00,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2022-01-17 23:28:00,626 INFO L87 Difference]: Start difference. First operand 2196 states and 5564 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:02,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:02,285 INFO L93 Difference]: Finished difference Result 2460 states and 6083 transitions. [2022-01-17 23:28:02,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:28:02,285 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:28:02,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:02,289 INFO L225 Difference]: With dead ends: 2460 [2022-01-17 23:28:02,289 INFO L226 Difference]: Without dead ends: 2311 [2022-01-17 23:28:02,289 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 469 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=510, Invalid=2352, Unknown=0, NotChecked=0, Total=2862 [2022-01-17 23:28:02,290 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 994 mSDsluCounter, 1979 mSDsCounter, 0 mSdLazyCounter, 1261 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 994 SdHoareTripleChecker+Valid, 2039 SdHoareTripleChecker+Invalid, 1351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 1261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:02,290 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [994 Valid, 2039 Invalid, 1351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 1261 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:28:02,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2311 states. [2022-01-17 23:28:02,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2311 to 2208. [2022-01-17 23:28:02,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2208 states, 2207 states have (on average 2.5337562301767105) internal successors, (5592), 2207 states have internal predecessors, (5592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:02,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2208 states to 2208 states and 5592 transitions. [2022-01-17 23:28:02,316 INFO L78 Accepts]: Start accepts. Automaton has 2208 states and 5592 transitions. Word has length 137 [2022-01-17 23:28:02,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:02,316 INFO L470 AbstractCegarLoop]: Abstraction has 2208 states and 5592 transitions. [2022-01-17 23:28:02,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:02,316 INFO L276 IsEmpty]: Start isEmpty. Operand 2208 states and 5592 transitions. [2022-01-17 23:28:02,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:28:02,319 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:02,319 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:02,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2022-01-17 23:28:02,319 INFO L402 AbstractCegarLoop]: === Iteration 163 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:28:02,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:02,319 INFO L85 PathProgramCache]: Analyzing trace with hash 753539323, now seen corresponding path program 119 times [2022-01-17 23:28:02,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:02,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109913802] [2022-01-17 23:28:02,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:02,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:02,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:03,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:03,299 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:03,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109913802] [2022-01-17 23:28:03,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109913802] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:03,299 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:03,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-17 23:28:03,300 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073875212] [2022-01-17 23:28:03,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:03,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-17 23:28:03,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:03,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-17 23:28:03,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=1023, Unknown=0, NotChecked=0, Total=1122 [2022-01-17 23:28:03,300 INFO L87 Difference]: Start difference. First operand 2208 states and 5592 transitions. Second operand has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:05,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:05,517 INFO L93 Difference]: Finished difference Result 2390 states and 5933 transitions. [2022-01-17 23:28:05,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-17 23:28:05,518 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:28:05,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:05,520 INFO L225 Difference]: With dead ends: 2390 [2022-01-17 23:28:05,520 INFO L226 Difference]: Without dead ends: 2252 [2022-01-17 23:28:05,521 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 877 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=717, Invalid=3705, Unknown=0, NotChecked=0, Total=4422 [2022-01-17 23:28:05,521 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 1178 mSDsluCounter, 2390 mSDsCounter, 0 mSdLazyCounter, 1606 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1178 SdHoareTripleChecker+Valid, 2413 SdHoareTripleChecker+Invalid, 1710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 1606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:05,521 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1178 Valid, 2413 Invalid, 1710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 1606 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:28:05,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2252 states. [2022-01-17 23:28:05,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2252 to 2206. [2022-01-17 23:28:05,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2206 states, 2205 states have (on average 2.5337868480725625) internal successors, (5587), 2205 states have internal predecessors, (5587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:05,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2206 states to 2206 states and 5587 transitions. [2022-01-17 23:28:05,539 INFO L78 Accepts]: Start accepts. Automaton has 2206 states and 5587 transitions. Word has length 137 [2022-01-17 23:28:05,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:05,539 INFO L470 AbstractCegarLoop]: Abstraction has 2206 states and 5587 transitions. [2022-01-17 23:28:05,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:05,540 INFO L276 IsEmpty]: Start isEmpty. Operand 2206 states and 5587 transitions. [2022-01-17 23:28:05,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:28:05,542 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:05,542 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:05,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2022-01-17 23:28:05,542 INFO L402 AbstractCegarLoop]: === Iteration 164 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:28:05,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:05,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1900692793, now seen corresponding path program 120 times [2022-01-17 23:28:05,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:05,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290263184] [2022-01-17 23:28:05,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:05,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:05,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:06,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:06,346 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:06,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290263184] [2022-01-17 23:28:06,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290263184] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:06,346 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:06,346 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-17 23:28:06,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009676189] [2022-01-17 23:28:06,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:06,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-17 23:28:06,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:06,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-17 23:28:06,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=794, Unknown=0, NotChecked=0, Total=870 [2022-01-17 23:28:06,347 INFO L87 Difference]: Start difference. First operand 2206 states and 5587 transitions. Second operand has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:08,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:08,365 INFO L93 Difference]: Finished difference Result 2402 states and 5951 transitions. [2022-01-17 23:28:08,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:28:08,365 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:28:08,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:08,367 INFO L225 Difference]: With dead ends: 2402 [2022-01-17 23:28:08,368 INFO L226 Difference]: Without dead ends: 2254 [2022-01-17 23:28:08,368 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 489 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=524, Invalid=2446, Unknown=0, NotChecked=0, Total=2970 [2022-01-17 23:28:08,368 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 1008 mSDsluCounter, 1923 mSDsCounter, 0 mSdLazyCounter, 1280 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1008 SdHoareTripleChecker+Valid, 1977 SdHoareTripleChecker+Invalid, 1376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:08,368 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1008 Valid, 1977 Invalid, 1376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 1280 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:28:08,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2254 states. [2022-01-17 23:28:08,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2254 to 2202. [2022-01-17 23:28:08,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2202 states, 2201 states have (on average 2.5329395729213995) internal successors, (5575), 2201 states have internal predecessors, (5575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:08,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2202 states to 2202 states and 5575 transitions. [2022-01-17 23:28:08,386 INFO L78 Accepts]: Start accepts. Automaton has 2202 states and 5575 transitions. Word has length 137 [2022-01-17 23:28:08,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:08,386 INFO L470 AbstractCegarLoop]: Abstraction has 2202 states and 5575 transitions. [2022-01-17 23:28:08,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:08,387 INFO L276 IsEmpty]: Start isEmpty. Operand 2202 states and 5575 transitions. [2022-01-17 23:28:08,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:28:08,388 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:08,388 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:08,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2022-01-17 23:28:08,389 INFO L402 AbstractCegarLoop]: === Iteration 165 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:28:08,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:08,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1247139359, now seen corresponding path program 121 times [2022-01-17 23:28:08,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:08,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812612203] [2022-01-17 23:28:08,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:08,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:08,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:09,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:09,019 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:09,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812612203] [2022-01-17 23:28:09,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812612203] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:09,019 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:09,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2022-01-17 23:28:09,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642703447] [2022-01-17 23:28:09,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:09,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-01-17 23:28:09,020 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:09,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-01-17 23:28:09,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=971, Unknown=0, NotChecked=0, Total=1056 [2022-01-17 23:28:09,020 INFO L87 Difference]: Start difference. First operand 2202 states and 5575 transitions. Second operand has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:11,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:11,476 INFO L93 Difference]: Finished difference Result 2353 states and 5852 transitions. [2022-01-17 23:28:11,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-17 23:28:11,476 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:28:11,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:11,479 INFO L225 Difference]: With dead ends: 2353 [2022-01-17 23:28:11,479 INFO L226 Difference]: Without dead ends: 2242 [2022-01-17 23:28:11,479 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 737 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=712, Invalid=3578, Unknown=0, NotChecked=0, Total=4290 [2022-01-17 23:28:11,479 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 917 mSDsluCounter, 2454 mSDsCounter, 0 mSdLazyCounter, 1689 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 917 SdHoareTripleChecker+Valid, 2504 SdHoareTripleChecker+Invalid, 1775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:11,479 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [917 Valid, 2504 Invalid, 1775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 1689 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:28:11,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2242 states. [2022-01-17 23:28:11,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2242 to 2198. [2022-01-17 23:28:11,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2198 states, 2197 states have (on average 2.5339098771051436) internal successors, (5567), 2197 states have internal predecessors, (5567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:11,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2198 states to 2198 states and 5567 transitions. [2022-01-17 23:28:11,498 INFO L78 Accepts]: Start accepts. Automaton has 2198 states and 5567 transitions. Word has length 137 [2022-01-17 23:28:11,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:11,498 INFO L470 AbstractCegarLoop]: Abstraction has 2198 states and 5567 transitions. [2022-01-17 23:28:11,498 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:11,498 INFO L276 IsEmpty]: Start isEmpty. Operand 2198 states and 5567 transitions. [2022-01-17 23:28:11,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:28:11,500 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:11,501 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:11,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2022-01-17 23:28:11,501 INFO L402 AbstractCegarLoop]: === Iteration 166 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:28:11,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:11,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1283571723, now seen corresponding path program 122 times [2022-01-17 23:28:11,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:11,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882003636] [2022-01-17 23:28:11,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:11,501 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:11,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:12,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:12,051 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:12,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882003636] [2022-01-17 23:28:12,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882003636] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:12,051 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:12,051 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-17 23:28:12,051 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426358496] [2022-01-17 23:28:12,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:12,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-17 23:28:12,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:12,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-17 23:28:12,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2022-01-17 23:28:12,052 INFO L87 Difference]: Start difference. First operand 2198 states and 5567 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:13,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:13,547 INFO L93 Difference]: Finished difference Result 2389 states and 5936 transitions. [2022-01-17 23:28:13,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:28:13,547 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:28:13,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:13,550 INFO L225 Difference]: With dead ends: 2389 [2022-01-17 23:28:13,550 INFO L226 Difference]: Without dead ends: 2280 [2022-01-17 23:28:13,550 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 478 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=510, Invalid=2352, Unknown=0, NotChecked=0, Total=2862 [2022-01-17 23:28:13,551 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 962 mSDsluCounter, 1821 mSDsCounter, 0 mSdLazyCounter, 1115 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 962 SdHoareTripleChecker+Valid, 1903 SdHoareTripleChecker+Invalid, 1197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:13,551 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [962 Valid, 1903 Invalid, 1197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1115 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:28:13,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2280 states. [2022-01-17 23:28:13,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2280 to 2208. [2022-01-17 23:28:13,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2208 states, 2207 states have (on average 2.532850022655188) internal successors, (5590), 2207 states have internal predecessors, (5590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:13,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2208 states to 2208 states and 5590 transitions. [2022-01-17 23:28:13,570 INFO L78 Accepts]: Start accepts. Automaton has 2208 states and 5590 transitions. Word has length 137 [2022-01-17 23:28:13,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:13,570 INFO L470 AbstractCegarLoop]: Abstraction has 2208 states and 5590 transitions. [2022-01-17 23:28:13,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:13,570 INFO L276 IsEmpty]: Start isEmpty. Operand 2208 states and 5590 transitions. [2022-01-17 23:28:13,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:28:13,572 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:13,572 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:13,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2022-01-17 23:28:13,572 INFO L402 AbstractCegarLoop]: === Iteration 167 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:28:13,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:13,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1846088919, now seen corresponding path program 123 times [2022-01-17 23:28:13,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:13,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987034680] [2022-01-17 23:28:13,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:13,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:13,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:14,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:14,087 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:14,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987034680] [2022-01-17 23:28:14,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987034680] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:14,087 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:14,087 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-17 23:28:14,087 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229757427] [2022-01-17 23:28:14,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:14,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-17 23:28:14,087 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:14,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-17 23:28:14,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2022-01-17 23:28:14,087 INFO L87 Difference]: Start difference. First operand 2208 states and 5590 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:15,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:15,656 INFO L93 Difference]: Finished difference Result 2349 states and 5846 transitions. [2022-01-17 23:28:15,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:28:15,656 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:28:15,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:15,659 INFO L225 Difference]: With dead ends: 2349 [2022-01-17 23:28:15,659 INFO L226 Difference]: Without dead ends: 2246 [2022-01-17 23:28:15,660 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 463 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=520, Invalid=2342, Unknown=0, NotChecked=0, Total=2862 [2022-01-17 23:28:15,660 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 947 mSDsluCounter, 1876 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 947 SdHoareTripleChecker+Valid, 1953 SdHoareTripleChecker+Invalid, 1241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:15,660 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [947 Valid, 1953 Invalid, 1241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:28:15,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2246 states. [2022-01-17 23:28:15,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2246 to 2206. [2022-01-17 23:28:15,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2206 states, 2205 states have (on average 2.5328798185941044) internal successors, (5585), 2205 states have internal predecessors, (5585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:15,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2206 states to 2206 states and 5585 transitions. [2022-01-17 23:28:15,678 INFO L78 Accepts]: Start accepts. Automaton has 2206 states and 5585 transitions. Word has length 137 [2022-01-17 23:28:15,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:15,679 INFO L470 AbstractCegarLoop]: Abstraction has 2206 states and 5585 transitions. [2022-01-17 23:28:15,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:15,679 INFO L276 IsEmpty]: Start isEmpty. Operand 2206 states and 5585 transitions. [2022-01-17 23:28:15,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:28:15,681 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:15,681 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:15,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2022-01-17 23:28:15,681 INFO L402 AbstractCegarLoop]: === Iteration 168 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:28:15,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:15,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1588916699, now seen corresponding path program 124 times [2022-01-17 23:28:15,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:15,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160741545] [2022-01-17 23:28:15,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:15,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:15,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:16,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:16,380 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:16,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160741545] [2022-01-17 23:28:16,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160741545] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:16,380 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:16,380 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2022-01-17 23:28:16,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073572168] [2022-01-17 23:28:16,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:16,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-01-17 23:28:16,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:16,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-01-17 23:28:16,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=971, Unknown=0, NotChecked=0, Total=1056 [2022-01-17 23:28:16,381 INFO L87 Difference]: Start difference. First operand 2206 states and 5585 transitions. Second operand has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:18,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:18,805 INFO L93 Difference]: Finished difference Result 2347 states and 5841 transitions. [2022-01-17 23:28:18,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-17 23:28:18,806 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:28:18,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:18,808 INFO L225 Difference]: With dead ends: 2347 [2022-01-17 23:28:18,808 INFO L226 Difference]: Without dead ends: 2234 [2022-01-17 23:28:18,809 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 747 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=712, Invalid=3578, Unknown=0, NotChecked=0, Total=4290 [2022-01-17 23:28:18,809 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 1124 mSDsluCounter, 2054 mSDsCounter, 0 mSdLazyCounter, 1429 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1124 SdHoareTripleChecker+Valid, 2117 SdHoareTripleChecker+Invalid, 1531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:18,809 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1124 Valid, 2117 Invalid, 1531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1429 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:28:18,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2234 states. [2022-01-17 23:28:18,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2234 to 2202. [2022-01-17 23:28:18,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2202 states, 2201 states have (on average 2.5320308950477055) internal successors, (5573), 2201 states have internal predecessors, (5573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:18,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2202 states to 2202 states and 5573 transitions. [2022-01-17 23:28:18,828 INFO L78 Accepts]: Start accepts. Automaton has 2202 states and 5573 transitions. Word has length 137 [2022-01-17 23:28:18,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:18,828 INFO L470 AbstractCegarLoop]: Abstraction has 2202 states and 5573 transitions. [2022-01-17 23:28:18,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:18,828 INFO L276 IsEmpty]: Start isEmpty. Operand 2202 states and 5573 transitions. [2022-01-17 23:28:18,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:28:18,830 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:18,830 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:18,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2022-01-17 23:28:18,830 INFO L402 AbstractCegarLoop]: === Iteration 169 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:28:18,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:18,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1222080899, now seen corresponding path program 125 times [2022-01-17 23:28:18,831 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:18,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648648722] [2022-01-17 23:28:18,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:18,831 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:18,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:19,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:19,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:19,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648648722] [2022-01-17 23:28:19,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648648722] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:19,528 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:19,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:28:19,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150296954] [2022-01-17 23:28:19,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:19,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:28:19,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:19,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:28:19,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=733, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:28:19,529 INFO L87 Difference]: Start difference. First operand 2202 states and 5573 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:21,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:21,567 INFO L93 Difference]: Finished difference Result 2368 states and 5882 transitions. [2022-01-17 23:28:21,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:28:21,567 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:28:21,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:21,570 INFO L225 Difference]: With dead ends: 2368 [2022-01-17 23:28:21,570 INFO L226 Difference]: Without dead ends: 2214 [2022-01-17 23:28:21,570 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 524 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=515, Invalid=2347, Unknown=0, NotChecked=0, Total=2862 [2022-01-17 23:28:21,571 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 946 mSDsluCounter, 1917 mSDsCounter, 0 mSdLazyCounter, 1240 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 946 SdHoareTripleChecker+Valid, 1974 SdHoareTripleChecker+Invalid, 1322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:21,571 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [946 Valid, 1974 Invalid, 1322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1240 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:28:21,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2214 states. [2022-01-17 23:28:21,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2214 to 2190. [2022-01-17 23:28:21,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2190 states, 2189 states have (on average 2.5349474645957057) internal successors, (5549), 2189 states have internal predecessors, (5549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:21,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2190 states to 2190 states and 5549 transitions. [2022-01-17 23:28:21,590 INFO L78 Accepts]: Start accepts. Automaton has 2190 states and 5549 transitions. Word has length 137 [2022-01-17 23:28:21,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:21,591 INFO L470 AbstractCegarLoop]: Abstraction has 2190 states and 5549 transitions. [2022-01-17 23:28:21,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:21,591 INFO L276 IsEmpty]: Start isEmpty. Operand 2190 states and 5549 transitions. [2022-01-17 23:28:21,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:28:21,593 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:21,593 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:21,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2022-01-17 23:28:21,593 INFO L402 AbstractCegarLoop]: === Iteration 170 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:28:21,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:21,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1361709413, now seen corresponding path program 126 times [2022-01-17 23:28:21,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:21,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211257168] [2022-01-17 23:28:21,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:21,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:21,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:22,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:22,360 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:22,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211257168] [2022-01-17 23:28:22,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211257168] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:22,360 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:22,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-17 23:28:22,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938694463] [2022-01-17 23:28:22,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:22,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-17 23:28:22,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:22,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-17 23:28:22,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=843, Unknown=0, NotChecked=0, Total=930 [2022-01-17 23:28:22,361 INFO L87 Difference]: Start difference. First operand 2190 states and 5549 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:24,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:24,066 INFO L93 Difference]: Finished difference Result 2454 states and 6076 transitions. [2022-01-17 23:28:24,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:28:24,066 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:28:24,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:24,069 INFO L225 Difference]: With dead ends: 2454 [2022-01-17 23:28:24,069 INFO L226 Difference]: Without dead ends: 2305 [2022-01-17 23:28:24,069 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 632 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=548, Invalid=2644, Unknown=0, NotChecked=0, Total=3192 [2022-01-17 23:28:24,069 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 1247 mSDsluCounter, 2059 mSDsCounter, 0 mSdLazyCounter, 1305 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1247 SdHoareTripleChecker+Valid, 2110 SdHoareTripleChecker+Invalid, 1417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 1305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:24,069 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1247 Valid, 2110 Invalid, 1417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 1305 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:28:24,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2305 states. [2022-01-17 23:28:24,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2305 to 2208. [2022-01-17 23:28:24,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2208 states, 2207 states have (on average 2.5337562301767105) internal successors, (5592), 2207 states have internal predecessors, (5592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:24,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2208 states to 2208 states and 5592 transitions. [2022-01-17 23:28:24,088 INFO L78 Accepts]: Start accepts. Automaton has 2208 states and 5592 transitions. Word has length 137 [2022-01-17 23:28:24,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:24,088 INFO L470 AbstractCegarLoop]: Abstraction has 2208 states and 5592 transitions. [2022-01-17 23:28:24,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:24,088 INFO L276 IsEmpty]: Start isEmpty. Operand 2208 states and 5592 transitions. [2022-01-17 23:28:24,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:28:24,090 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:24,090 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:24,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2022-01-17 23:28:24,091 INFO L402 AbstractCegarLoop]: === Iteration 171 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:28:24,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:24,091 INFO L85 PathProgramCache]: Analyzing trace with hash 574062401, now seen corresponding path program 127 times [2022-01-17 23:28:24,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:24,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189161494] [2022-01-17 23:28:24,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:24,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:24,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:24,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:24,751 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:24,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189161494] [2022-01-17 23:28:24,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189161494] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:24,751 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:24,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-17 23:28:24,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384363431] [2022-01-17 23:28:24,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:24,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-17 23:28:24,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:24,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-17 23:28:24,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2022-01-17 23:28:24,752 INFO L87 Difference]: Start difference. First operand 2208 states and 5592 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:26,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:26,362 INFO L93 Difference]: Finished difference Result 2384 states and 5926 transitions. [2022-01-17 23:28:26,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:28:26,362 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:28:26,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:26,365 INFO L225 Difference]: With dead ends: 2384 [2022-01-17 23:28:26,365 INFO L226 Difference]: Without dead ends: 2246 [2022-01-17 23:28:26,366 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 463 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=520, Invalid=2342, Unknown=0, NotChecked=0, Total=2862 [2022-01-17 23:28:26,366 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 930 mSDsluCounter, 1960 mSDsCounter, 0 mSdLazyCounter, 1250 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 930 SdHoareTripleChecker+Valid, 2015 SdHoareTripleChecker+Invalid, 1334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 1250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:26,366 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [930 Valid, 2015 Invalid, 1334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 1250 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:28:26,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2246 states. [2022-01-17 23:28:26,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2246 to 2206. [2022-01-17 23:28:26,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2206 states, 2205 states have (on average 2.5337868480725625) internal successors, (5587), 2205 states have internal predecessors, (5587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:26,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2206 states to 2206 states and 5587 transitions. [2022-01-17 23:28:26,385 INFO L78 Accepts]: Start accepts. Automaton has 2206 states and 5587 transitions. Word has length 137 [2022-01-17 23:28:26,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:26,385 INFO L470 AbstractCegarLoop]: Abstraction has 2206 states and 5587 transitions. [2022-01-17 23:28:26,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:26,386 INFO L276 IsEmpty]: Start isEmpty. Operand 2206 states and 5587 transitions. [2022-01-17 23:28:26,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:28:26,388 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:26,388 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:26,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2022-01-17 23:28:26,388 INFO L402 AbstractCegarLoop]: === Iteration 172 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:28:26,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:26,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1721215871, now seen corresponding path program 128 times [2022-01-17 23:28:26,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:26,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420639072] [2022-01-17 23:28:26,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:26,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:26,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:27,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:27,369 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:27,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420639072] [2022-01-17 23:28:27,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420639072] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:27,369 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:27,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2022-01-17 23:28:27,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079437146] [2022-01-17 23:28:27,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:27,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-01-17 23:28:27,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:27,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-01-17 23:28:27,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=1094, Unknown=0, NotChecked=0, Total=1190 [2022-01-17 23:28:27,370 INFO L87 Difference]: Start difference. First operand 2206 states and 5587 transitions. Second operand has 35 states, 35 states have (on average 3.914285714285714) internal successors, (137), 35 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:29,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:29,607 INFO L93 Difference]: Finished difference Result 2396 states and 5944 transitions. [2022-01-17 23:28:29,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-17 23:28:29,607 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.914285714285714) internal successors, (137), 35 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:28:29,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:29,610 INFO L225 Difference]: With dead ends: 2396 [2022-01-17 23:28:29,610 INFO L226 Difference]: Without dead ends: 2248 [2022-01-17 23:28:29,610 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 755 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=775, Invalid=3781, Unknown=0, NotChecked=0, Total=4556 [2022-01-17 23:28:29,610 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 991 mSDsluCounter, 2247 mSDsCounter, 0 mSdLazyCounter, 1619 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 991 SdHoareTripleChecker+Valid, 2275 SdHoareTripleChecker+Invalid, 1710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:29,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [991 Valid, 2275 Invalid, 1710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1619 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:28:29,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2248 states. [2022-01-17 23:28:29,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2248 to 2202. [2022-01-17 23:28:29,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2202 states, 2201 states have (on average 2.5329395729213995) internal successors, (5575), 2201 states have internal predecessors, (5575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:29,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2202 states to 2202 states and 5575 transitions. [2022-01-17 23:28:29,630 INFO L78 Accepts]: Start accepts. Automaton has 2202 states and 5575 transitions. Word has length 137 [2022-01-17 23:28:29,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:29,630 INFO L470 AbstractCegarLoop]: Abstraction has 2202 states and 5575 transitions. [2022-01-17 23:28:29,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 3.914285714285714) internal successors, (137), 35 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:29,631 INFO L276 IsEmpty]: Start isEmpty. Operand 2202 states and 5575 transitions. [2022-01-17 23:28:29,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:28:29,633 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:29,633 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:29,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2022-01-17 23:28:29,633 INFO L402 AbstractCegarLoop]: === Iteration 173 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:28:29,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:29,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1067662437, now seen corresponding path program 129 times [2022-01-17 23:28:29,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:29,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333697405] [2022-01-17 23:28:29,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:29,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:29,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:30,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:30,153 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:30,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333697405] [2022-01-17 23:28:30,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333697405] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:30,153 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:30,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-17 23:28:30,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434114918] [2022-01-17 23:28:30,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:30,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-17 23:28:30,153 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:30,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-17 23:28:30,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2022-01-17 23:28:30,154 INFO L87 Difference]: Start difference. First operand 2202 states and 5575 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:31,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:31,799 INFO L93 Difference]: Finished difference Result 2347 states and 5845 transitions. [2022-01-17 23:28:31,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:28:31,800 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:28:31,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:31,802 INFO L225 Difference]: With dead ends: 2347 [2022-01-17 23:28:31,802 INFO L226 Difference]: Without dead ends: 2236 [2022-01-17 23:28:31,802 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 439 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=500, Invalid=2256, Unknown=0, NotChecked=0, Total=2756 [2022-01-17 23:28:31,803 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 829 mSDsluCounter, 1890 mSDsCounter, 0 mSdLazyCounter, 1189 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 829 SdHoareTripleChecker+Valid, 1966 SdHoareTripleChecker+Invalid, 1265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 1189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:31,803 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [829 Valid, 1966 Invalid, 1265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 1189 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:28:31,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2236 states. [2022-01-17 23:28:31,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2236 to 2198. [2022-01-17 23:28:31,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2198 states, 2197 states have (on average 2.5339098771051436) internal successors, (5567), 2197 states have internal predecessors, (5567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:31,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2198 states to 2198 states and 5567 transitions. [2022-01-17 23:28:31,846 INFO L78 Accepts]: Start accepts. Automaton has 2198 states and 5567 transitions. Word has length 137 [2022-01-17 23:28:31,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:31,846 INFO L470 AbstractCegarLoop]: Abstraction has 2198 states and 5567 transitions. [2022-01-17 23:28:31,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:31,847 INFO L276 IsEmpty]: Start isEmpty. Operand 2198 states and 5567 transitions. [2022-01-17 23:28:31,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:28:31,849 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:31,849 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:31,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2022-01-17 23:28:31,849 INFO L402 AbstractCegarLoop]: === Iteration 174 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:28:31,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:31,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1463048645, now seen corresponding path program 130 times [2022-01-17 23:28:31,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:31,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635172874] [2022-01-17 23:28:31,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:31,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:31,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:32,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:32,599 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:32,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635172874] [2022-01-17 23:28:32,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635172874] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:32,600 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:32,600 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-17 23:28:32,600 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139507351] [2022-01-17 23:28:32,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:32,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-17 23:28:32,600 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:32,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-17 23:28:32,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=843, Unknown=0, NotChecked=0, Total=930 [2022-01-17 23:28:32,600 INFO L87 Difference]: Start difference. First operand 2198 states and 5567 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:34,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:34,459 INFO L93 Difference]: Finished difference Result 2399 states and 5961 transitions. [2022-01-17 23:28:34,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:28:34,459 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:28:34,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:34,462 INFO L225 Difference]: With dead ends: 2399 [2022-01-17 23:28:34,462 INFO L226 Difference]: Without dead ends: 2290 [2022-01-17 23:28:34,463 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 632 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=548, Invalid=2644, Unknown=0, NotChecked=0, Total=3192 [2022-01-17 23:28:34,463 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 1139 mSDsluCounter, 2108 mSDsCounter, 0 mSdLazyCounter, 1281 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1139 SdHoareTripleChecker+Valid, 2178 SdHoareTripleChecker+Invalid, 1377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:34,463 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1139 Valid, 2178 Invalid, 1377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 1281 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:28:34,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2290 states. [2022-01-17 23:28:34,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2290 to 2208. [2022-01-17 23:28:34,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2208 states, 2207 states have (on average 2.532850022655188) internal successors, (5590), 2207 states have internal predecessors, (5590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:34,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2208 states to 2208 states and 5590 transitions. [2022-01-17 23:28:34,482 INFO L78 Accepts]: Start accepts. Automaton has 2208 states and 5590 transitions. Word has length 137 [2022-01-17 23:28:34,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:34,483 INFO L470 AbstractCegarLoop]: Abstraction has 2208 states and 5590 transitions. [2022-01-17 23:28:34,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:34,483 INFO L276 IsEmpty]: Start isEmpty. Operand 2208 states and 5590 transitions. [2022-01-17 23:28:34,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:28:34,485 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:34,485 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:34,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2022-01-17 23:28:34,485 INFO L402 AbstractCegarLoop]: === Iteration 175 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:28:34,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:34,485 INFO L85 PathProgramCache]: Analyzing trace with hash -2025565841, now seen corresponding path program 131 times [2022-01-17 23:28:34,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:34,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933406939] [2022-01-17 23:28:34,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:34,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:34,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:35,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:35,199 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:35,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933406939] [2022-01-17 23:28:35,199 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933406939] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:35,200 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:35,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-17 23:28:35,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423611752] [2022-01-17 23:28:35,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:35,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-17 23:28:35,200 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:35,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-17 23:28:35,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=794, Unknown=0, NotChecked=0, Total=870 [2022-01-17 23:28:35,200 INFO L87 Difference]: Start difference. First operand 2208 states and 5590 transitions. Second operand has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:36,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:36,861 INFO L93 Difference]: Finished difference Result 2359 states and 5871 transitions. [2022-01-17 23:28:36,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:28:36,862 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:28:36,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:36,865 INFO L225 Difference]: With dead ends: 2359 [2022-01-17 23:28:36,865 INFO L226 Difference]: Without dead ends: 2256 [2022-01-17 23:28:36,865 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=544, Invalid=2536, Unknown=0, NotChecked=0, Total=3080 [2022-01-17 23:28:36,865 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 1239 mSDsluCounter, 1892 mSDsCounter, 0 mSdLazyCounter, 1191 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1239 SdHoareTripleChecker+Valid, 1967 SdHoareTripleChecker+Invalid, 1290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:36,865 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1239 Valid, 1967 Invalid, 1290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1191 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:28:36,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2256 states. [2022-01-17 23:28:36,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2256 to 2206. [2022-01-17 23:28:36,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2206 states, 2205 states have (on average 2.5328798185941044) internal successors, (5585), 2205 states have internal predecessors, (5585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:36,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2206 states to 2206 states and 5585 transitions. [2022-01-17 23:28:36,884 INFO L78 Accepts]: Start accepts. Automaton has 2206 states and 5585 transitions. Word has length 137 [2022-01-17 23:28:36,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:36,884 INFO L470 AbstractCegarLoop]: Abstraction has 2206 states and 5585 transitions. [2022-01-17 23:28:36,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:36,884 INFO L276 IsEmpty]: Start isEmpty. Operand 2206 states and 5585 transitions. [2022-01-17 23:28:36,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:28:36,886 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:36,886 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:36,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2022-01-17 23:28:36,886 INFO L402 AbstractCegarLoop]: === Iteration 176 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:28:36,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:36,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1409439777, now seen corresponding path program 132 times [2022-01-17 23:28:36,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:36,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676927461] [2022-01-17 23:28:36,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:36,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:36,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:37,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:37,567 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:37,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676927461] [2022-01-17 23:28:37,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676927461] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:37,568 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:37,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-17 23:28:37,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679710861] [2022-01-17 23:28:37,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:37,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-17 23:28:37,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:37,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-17 23:28:37,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=794, Unknown=0, NotChecked=0, Total=870 [2022-01-17 23:28:37,568 INFO L87 Difference]: Start difference. First operand 2206 states and 5585 transitions. Second operand has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:39,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:39,302 INFO L93 Difference]: Finished difference Result 2357 states and 5866 transitions. [2022-01-17 23:28:39,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:28:39,302 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:28:39,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:39,305 INFO L225 Difference]: With dead ends: 2357 [2022-01-17 23:28:39,305 INFO L226 Difference]: Without dead ends: 2244 [2022-01-17 23:28:39,305 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 489 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=524, Invalid=2446, Unknown=0, NotChecked=0, Total=2970 [2022-01-17 23:28:39,305 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 1208 mSDsluCounter, 2010 mSDsCounter, 0 mSdLazyCounter, 1287 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1208 SdHoareTripleChecker+Valid, 2080 SdHoareTripleChecker+Invalid, 1388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 1287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:39,305 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1208 Valid, 2080 Invalid, 1388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 1287 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:28:39,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2244 states. [2022-01-17 23:28:39,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2244 to 2202. [2022-01-17 23:28:39,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2202 states, 2201 states have (on average 2.5320308950477055) internal successors, (5573), 2201 states have internal predecessors, (5573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:39,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2202 states to 2202 states and 5573 transitions. [2022-01-17 23:28:39,324 INFO L78 Accepts]: Start accepts. Automaton has 2202 states and 5573 transitions. Word has length 137 [2022-01-17 23:28:39,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:39,324 INFO L470 AbstractCegarLoop]: Abstraction has 2202 states and 5573 transitions. [2022-01-17 23:28:39,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:39,324 INFO L276 IsEmpty]: Start isEmpty. Operand 2202 states and 5573 transitions. [2022-01-17 23:28:39,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:28:39,326 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:39,326 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:39,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2022-01-17 23:28:39,326 INFO L402 AbstractCegarLoop]: === Iteration 177 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:28:39,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:39,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1401557821, now seen corresponding path program 133 times [2022-01-17 23:28:39,326 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:39,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727537782] [2022-01-17 23:28:39,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:39,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:39,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:39,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:39,866 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:39,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727537782] [2022-01-17 23:28:39,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727537782] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:39,866 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:39,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-17 23:28:39,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233131066] [2022-01-17 23:28:39,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:39,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-17 23:28:39,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:39,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-17 23:28:39,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2022-01-17 23:28:39,866 INFO L87 Difference]: Start difference. First operand 2202 states and 5573 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:41,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:41,441 INFO L93 Difference]: Finished difference Result 2378 states and 5907 transitions. [2022-01-17 23:28:41,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:28:41,442 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:28:41,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:41,444 INFO L225 Difference]: With dead ends: 2378 [2022-01-17 23:28:41,444 INFO L226 Difference]: Without dead ends: 2230 [2022-01-17 23:28:41,445 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 439 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=500, Invalid=2256, Unknown=0, NotChecked=0, Total=2756 [2022-01-17 23:28:41,445 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 984 mSDsluCounter, 1838 mSDsCounter, 0 mSdLazyCounter, 1143 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 984 SdHoareTripleChecker+Valid, 1896 SdHoareTripleChecker+Invalid, 1229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:41,445 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [984 Valid, 1896 Invalid, 1229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 1143 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:28:41,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2230 states. [2022-01-17 23:28:41,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2230 to 2196. [2022-01-17 23:28:41,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2196 states, 2195 states have (on average 2.5339407744874713) internal successors, (5562), 2195 states have internal predecessors, (5562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:41,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2196 states to 2196 states and 5562 transitions. [2022-01-17 23:28:41,464 INFO L78 Accepts]: Start accepts. Automaton has 2196 states and 5562 transitions. Word has length 137 [2022-01-17 23:28:41,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:41,464 INFO L470 AbstractCegarLoop]: Abstraction has 2196 states and 5562 transitions. [2022-01-17 23:28:41,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:41,464 INFO L276 IsEmpty]: Start isEmpty. Operand 2196 states and 5562 transitions. [2022-01-17 23:28:41,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:28:41,466 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:41,466 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:41,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2022-01-17 23:28:41,466 INFO L402 AbstractCegarLoop]: === Iteration 178 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:28:41,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:41,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1026063461, now seen corresponding path program 134 times [2022-01-17 23:28:41,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:41,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003747542] [2022-01-17 23:28:41,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:41,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:41,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:41,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:41,979 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:41,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003747542] [2022-01-17 23:28:41,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003747542] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:41,979 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:41,979 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-17 23:28:41,979 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729431209] [2022-01-17 23:28:41,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:41,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-17 23:28:41,980 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:41,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-17 23:28:41,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2022-01-17 23:28:41,980 INFO L87 Difference]: Start difference. First operand 2196 states and 5562 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:43,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:43,977 INFO L93 Difference]: Finished difference Result 2433 states and 6046 transitions. [2022-01-17 23:28:43,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-17 23:28:43,977 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:28:43,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:43,980 INFO L225 Difference]: With dead ends: 2433 [2022-01-17 23:28:43,980 INFO L226 Difference]: Without dead ends: 2294 [2022-01-17 23:28:43,980 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 531 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=528, Invalid=2442, Unknown=0, NotChecked=0, Total=2970 [2022-01-17 23:28:43,980 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 977 mSDsluCounter, 1891 mSDsCounter, 0 mSdLazyCounter, 1099 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 977 SdHoareTripleChecker+Valid, 1978 SdHoareTripleChecker+Invalid, 1180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1099 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:43,980 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [977 Valid, 1978 Invalid, 1180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1099 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:28:43,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2294 states. [2022-01-17 23:28:43,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2294 to 2226. [2022-01-17 23:28:43,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2226 states, 2225 states have (on average 2.5307865168539325) internal successors, (5631), 2225 states have internal predecessors, (5631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:43,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2226 states to 2226 states and 5631 transitions. [2022-01-17 23:28:44,000 INFO L78 Accepts]: Start accepts. Automaton has 2226 states and 5631 transitions. Word has length 137 [2022-01-17 23:28:44,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:44,000 INFO L470 AbstractCegarLoop]: Abstraction has 2226 states and 5631 transitions. [2022-01-17 23:28:44,000 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:44,000 INFO L276 IsEmpty]: Start isEmpty. Operand 2226 states and 5631 transitions. [2022-01-17 23:28:44,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:28:44,002 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:44,002 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:44,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2022-01-17 23:28:44,002 INFO L402 AbstractCegarLoop]: === Iteration 179 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:28:44,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:44,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1445567089, now seen corresponding path program 135 times [2022-01-17 23:28:44,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:44,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811877482] [2022-01-17 23:28:44,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:44,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:44,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:44,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:44,657 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:44,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811877482] [2022-01-17 23:28:44,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811877482] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:44,657 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:44,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-17 23:28:44,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319174813] [2022-01-17 23:28:44,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:44,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-17 23:28:44,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:44,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-17 23:28:44,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2022-01-17 23:28:44,658 INFO L87 Difference]: Start difference. First operand 2226 states and 5631 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:46,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:46,498 INFO L93 Difference]: Finished difference Result 2401 states and 5964 transitions. [2022-01-17 23:28:46,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-17 23:28:46,498 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:28:46,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:46,501 INFO L225 Difference]: With dead ends: 2401 [2022-01-17 23:28:46,501 INFO L226 Difference]: Without dead ends: 2292 [2022-01-17 23:28:46,501 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=531, Invalid=2439, Unknown=0, NotChecked=0, Total=2970 [2022-01-17 23:28:46,501 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 1068 mSDsluCounter, 1845 mSDsCounter, 0 mSdLazyCounter, 1101 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1068 SdHoareTripleChecker+Valid, 1928 SdHoareTripleChecker+Invalid, 1188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 1101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:46,501 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1068 Valid, 1928 Invalid, 1188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 1101 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:28:46,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2292 states. [2022-01-17 23:28:46,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2292 to 2228. [2022-01-17 23:28:46,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2228 states, 2227 states have (on average 2.5298607992815447) internal successors, (5634), 2227 states have internal predecessors, (5634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:46,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2228 states to 2228 states and 5634 transitions. [2022-01-17 23:28:46,525 INFO L78 Accepts]: Start accepts. Automaton has 2228 states and 5634 transitions. Word has length 137 [2022-01-17 23:28:46,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:46,525 INFO L470 AbstractCegarLoop]: Abstraction has 2228 states and 5634 transitions. [2022-01-17 23:28:46,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:46,525 INFO L276 IsEmpty]: Start isEmpty. Operand 2228 states and 5634 transitions. [2022-01-17 23:28:46,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:28:46,527 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:46,527 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:46,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2022-01-17 23:28:46,527 INFO L402 AbstractCegarLoop]: === Iteration 180 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:28:46,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:46,528 INFO L85 PathProgramCache]: Analyzing trace with hash -2008084285, now seen corresponding path program 136 times [2022-01-17 23:28:46,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:46,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141767282] [2022-01-17 23:28:46,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:46,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:46,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:47,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:47,235 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:47,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141767282] [2022-01-17 23:28:47,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141767282] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:47,235 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:47,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-17 23:28:47,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680711811] [2022-01-17 23:28:47,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:47,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-17 23:28:47,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:47,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-17 23:28:47,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2022-01-17 23:28:47,235 INFO L87 Difference]: Start difference. First operand 2228 states and 5634 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:49,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:49,102 INFO L93 Difference]: Finished difference Result 2357 states and 5868 transitions. [2022-01-17 23:28:49,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:28:49,102 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:28:49,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:49,104 INFO L225 Difference]: With dead ends: 2357 [2022-01-17 23:28:49,104 INFO L226 Difference]: Without dead ends: 2248 [2022-01-17 23:28:49,105 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 485 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=523, Invalid=2339, Unknown=0, NotChecked=0, Total=2862 [2022-01-17 23:28:49,105 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 930 mSDsluCounter, 1777 mSDsCounter, 0 mSdLazyCounter, 1110 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 930 SdHoareTripleChecker+Valid, 1861 SdHoareTripleChecker+Invalid, 1188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 1110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:49,105 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [930 Valid, 1861 Invalid, 1188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 1110 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:28:49,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2248 states. [2022-01-17 23:28:49,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2248 to 2220. [2022-01-17 23:28:49,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2220 states, 2219 states have (on average 2.530869761153673) internal successors, (5616), 2219 states have internal predecessors, (5616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:49,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2220 states to 2220 states and 5616 transitions. [2022-01-17 23:28:49,124 INFO L78 Accepts]: Start accepts. Automaton has 2220 states and 5616 transitions. Word has length 137 [2022-01-17 23:28:49,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:49,124 INFO L470 AbstractCegarLoop]: Abstraction has 2220 states and 5616 transitions. [2022-01-17 23:28:49,124 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:49,124 INFO L276 IsEmpty]: Start isEmpty. Operand 2220 states and 5616 transitions. [2022-01-17 23:28:49,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:28:49,126 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:49,126 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:49,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2022-01-17 23:28:49,126 INFO L402 AbstractCegarLoop]: === Iteration 181 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:28:49,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:49,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1758578049, now seen corresponding path program 137 times [2022-01-17 23:28:49,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:49,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309720397] [2022-01-17 23:28:49,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:49,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:49,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:49,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:49,719 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:49,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309720397] [2022-01-17 23:28:49,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309720397] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:49,720 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:49,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-17 23:28:49,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733716309] [2022-01-17 23:28:49,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:49,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-17 23:28:49,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:49,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-17 23:28:49,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2022-01-17 23:28:49,720 INFO L87 Difference]: Start difference. First operand 2220 states and 5616 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:51,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:51,421 INFO L93 Difference]: Finished difference Result 2387 states and 5933 transitions. [2022-01-17 23:28:51,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:28:51,421 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:28:51,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:51,424 INFO L225 Difference]: With dead ends: 2387 [2022-01-17 23:28:51,424 INFO L226 Difference]: Without dead ends: 2278 [2022-01-17 23:28:51,424 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 491 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=511, Invalid=2351, Unknown=0, NotChecked=0, Total=2862 [2022-01-17 23:28:51,424 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 1088 mSDsluCounter, 2005 mSDsCounter, 0 mSdLazyCounter, 1214 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1088 SdHoareTripleChecker+Valid, 2081 SdHoareTripleChecker+Invalid, 1299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:51,424 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1088 Valid, 2081 Invalid, 1299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1214 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:28:51,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2278 states. [2022-01-17 23:28:51,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2278 to 2230. [2022-01-17 23:28:51,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2230 states, 2229 states have (on average 2.5298340062808435) internal successors, (5639), 2229 states have internal predecessors, (5639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:51,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2230 states to 2230 states and 5639 transitions. [2022-01-17 23:28:51,443 INFO L78 Accepts]: Start accepts. Automaton has 2230 states and 5639 transitions. Word has length 137 [2022-01-17 23:28:51,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:51,443 INFO L470 AbstractCegarLoop]: Abstraction has 2230 states and 5639 transitions. [2022-01-17 23:28:51,444 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:51,444 INFO L276 IsEmpty]: Start isEmpty. Operand 2230 states and 5639 transitions. [2022-01-17 23:28:51,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:28:51,446 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:51,446 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:51,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2022-01-17 23:28:51,446 INFO L402 AbstractCegarLoop]: === Iteration 182 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:28:51,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:51,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1973872051, now seen corresponding path program 138 times [2022-01-17 23:28:51,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:51,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364766652] [2022-01-17 23:28:51,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:51,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:51,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:52,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:52,037 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:52,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364766652] [2022-01-17 23:28:52,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364766652] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:52,037 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:52,037 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-17 23:28:52,037 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835864321] [2022-01-17 23:28:52,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:52,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-17 23:28:52,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:52,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-17 23:28:52,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=793, Unknown=0, NotChecked=0, Total=870 [2022-01-17 23:28:52,037 INFO L87 Difference]: Start difference. First operand 2230 states and 5639 transitions. Second operand has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:53,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:53,438 INFO L93 Difference]: Finished difference Result 2347 states and 5843 transitions. [2022-01-17 23:28:53,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:28:53,439 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:28:53,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:53,441 INFO L225 Difference]: With dead ends: 2347 [2022-01-17 23:28:53,441 INFO L226 Difference]: Without dead ends: 2244 [2022-01-17 23:28:53,442 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 545 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=545, Invalid=2535, Unknown=0, NotChecked=0, Total=3080 [2022-01-17 23:28:53,442 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 1050 mSDsluCounter, 1817 mSDsCounter, 0 mSdLazyCounter, 1132 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1050 SdHoareTripleChecker+Valid, 1896 SdHoareTripleChecker+Invalid, 1218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:53,442 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1050 Valid, 1896 Invalid, 1218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 1132 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:28:53,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2244 states. [2022-01-17 23:28:53,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2244 to 2228. [2022-01-17 23:28:53,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2228 states, 2227 states have (on average 2.5298607992815447) internal successors, (5634), 2227 states have internal predecessors, (5634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:53,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2228 states to 2228 states and 5634 transitions. [2022-01-17 23:28:53,462 INFO L78 Accepts]: Start accepts. Automaton has 2228 states and 5634 transitions. Word has length 137 [2022-01-17 23:28:53,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:53,462 INFO L470 AbstractCegarLoop]: Abstraction has 2228 states and 5634 transitions. [2022-01-17 23:28:53,463 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:53,463 INFO L276 IsEmpty]: Start isEmpty. Operand 2228 states and 5634 transitions. [2022-01-17 23:28:53,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:28:53,465 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:53,465 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:53,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2022-01-17 23:28:53,465 INFO L402 AbstractCegarLoop]: === Iteration 183 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:28:53,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:53,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1113910373, now seen corresponding path program 139 times [2022-01-17 23:28:53,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:53,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055502834] [2022-01-17 23:28:53,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:53,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:53,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:54,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:54,046 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:54,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055502834] [2022-01-17 23:28:54,046 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055502834] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:54,047 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:54,047 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-17 23:28:54,047 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003668501] [2022-01-17 23:28:54,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:54,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-17 23:28:54,047 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:54,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-17 23:28:54,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=793, Unknown=0, NotChecked=0, Total=870 [2022-01-17 23:28:54,047 INFO L87 Difference]: Start difference. First operand 2228 states and 5634 transitions. Second operand has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:56,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:56,083 INFO L93 Difference]: Finished difference Result 2345 states and 5838 transitions. [2022-01-17 23:28:56,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:28:56,083 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:28:56,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:56,086 INFO L225 Difference]: With dead ends: 2345 [2022-01-17 23:28:56,086 INFO L226 Difference]: Without dead ends: 2214 [2022-01-17 23:28:56,086 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 520 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=525, Invalid=2445, Unknown=0, NotChecked=0, Total=2970 [2022-01-17 23:28:56,086 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 1133 mSDsluCounter, 1931 mSDsCounter, 0 mSdLazyCounter, 1269 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1133 SdHoareTripleChecker+Valid, 2006 SdHoareTripleChecker+Invalid, 1369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:56,086 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1133 Valid, 2006 Invalid, 1369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1269 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:28:56,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2214 states. [2022-01-17 23:28:56,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2214 to 2206. [2022-01-17 23:28:56,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2206 states, 2205 states have (on average 2.529251700680272) internal successors, (5577), 2205 states have internal predecessors, (5577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:56,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2206 states to 2206 states and 5577 transitions. [2022-01-17 23:28:56,118 INFO L78 Accepts]: Start accepts. Automaton has 2206 states and 5577 transitions. Word has length 137 [2022-01-17 23:28:56,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:56,118 INFO L470 AbstractCegarLoop]: Abstraction has 2206 states and 5577 transitions. [2022-01-17 23:28:56,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:56,118 INFO L276 IsEmpty]: Start isEmpty. Operand 2206 states and 5577 transitions. [2022-01-17 23:28:56,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:28:56,120 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:56,120 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:56,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2022-01-17 23:28:56,120 INFO L402 AbstractCegarLoop]: === Iteration 184 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:28:56,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:56,121 INFO L85 PathProgramCache]: Analyzing trace with hash 2024808795, now seen corresponding path program 140 times [2022-01-17 23:28:56,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:56,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940903962] [2022-01-17 23:28:56,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:56,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:56,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:56,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:56,709 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:56,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940903962] [2022-01-17 23:28:56,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940903962] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:56,710 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:56,710 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-17 23:28:56,710 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958593985] [2022-01-17 23:28:56,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:56,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-17 23:28:56,710 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:56,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-17 23:28:56,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2022-01-17 23:28:56,710 INFO L87 Difference]: Start difference. First operand 2206 states and 5577 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:58,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:58,152 INFO L93 Difference]: Finished difference Result 2348 states and 5834 transitions. [2022-01-17 23:28:58,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:28:58,152 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:28:58,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:58,155 INFO L225 Difference]: With dead ends: 2348 [2022-01-17 23:28:58,155 INFO L226 Difference]: Without dead ends: 2172 [2022-01-17 23:28:58,155 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 470 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=501, Invalid=2255, Unknown=0, NotChecked=0, Total=2756 [2022-01-17 23:28:58,155 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 947 mSDsluCounter, 1919 mSDsCounter, 0 mSdLazyCounter, 1191 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 947 SdHoareTripleChecker+Valid, 1975 SdHoareTripleChecker+Invalid, 1272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:58,155 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [947 Valid, 1975 Invalid, 1272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1191 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:28:58,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2172 states. [2022-01-17 23:28:58,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2172 to 2172. [2022-01-17 23:28:58,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2172 states, 2171 states have (on average 2.5338553661906955) internal successors, (5501), 2171 states have internal predecessors, (5501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:58,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2172 states to 2172 states and 5501 transitions. [2022-01-17 23:28:58,173 INFO L78 Accepts]: Start accepts. Automaton has 2172 states and 5501 transitions. Word has length 137 [2022-01-17 23:28:58,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:58,173 INFO L470 AbstractCegarLoop]: Abstraction has 2172 states and 5501 transitions. [2022-01-17 23:28:58,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:58,173 INFO L276 IsEmpty]: Start isEmpty. Operand 2172 states and 5501 transitions. [2022-01-17 23:28:58,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:28:58,175 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:58,175 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:58,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2022-01-17 23:28:58,176 INFO L402 AbstractCegarLoop]: === Iteration 185 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:28:58,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:58,176 INFO L85 PathProgramCache]: Analyzing trace with hash 23899749, now seen corresponding path program 141 times [2022-01-17 23:28:58,176 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:58,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813458725] [2022-01-17 23:28:58,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:58,176 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:58,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:58,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:58,741 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:58,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813458725] [2022-01-17 23:28:58,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813458725] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:58,741 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:58,741 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:28:58,741 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431215028] [2022-01-17 23:28:58,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:58,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:28:58,741 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:58,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:28:58,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=732, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:28:58,742 INFO L87 Difference]: Start difference. First operand 2172 states and 5501 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:00,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:00,770 INFO L93 Difference]: Finished difference Result 2412 states and 5968 transitions. [2022-01-17 23:29:00,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:29:00,770 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:29:00,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:00,773 INFO L225 Difference]: With dead ends: 2412 [2022-01-17 23:29:00,773 INFO L226 Difference]: Without dead ends: 2263 [2022-01-17 23:29:00,773 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 547 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=524, Invalid=2446, Unknown=0, NotChecked=0, Total=2970 [2022-01-17 23:29:00,773 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 850 mSDsluCounter, 2450 mSDsCounter, 0 mSdLazyCounter, 1466 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 850 SdHoareTripleChecker+Valid, 2501 SdHoareTripleChecker+Invalid, 1546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 1466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:00,773 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [850 Valid, 2501 Invalid, 1546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 1466 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:29:00,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2263 states. [2022-01-17 23:29:00,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2263 to 2184. [2022-01-17 23:29:00,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2184 states, 2183 states have (on average 2.532753092075126) internal successors, (5529), 2183 states have internal predecessors, (5529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:00,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2184 states to 2184 states and 5529 transitions. [2022-01-17 23:29:00,792 INFO L78 Accepts]: Start accepts. Automaton has 2184 states and 5529 transitions. Word has length 137 [2022-01-17 23:29:00,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:00,792 INFO L470 AbstractCegarLoop]: Abstraction has 2184 states and 5529 transitions. [2022-01-17 23:29:00,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:00,792 INFO L276 IsEmpty]: Start isEmpty. Operand 2184 states and 5529 transitions. [2022-01-17 23:29:00,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:29:00,794 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:00,794 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:00,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2022-01-17 23:29:00,794 INFO L402 AbstractCegarLoop]: === Iteration 186 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:29:00,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:00,794 INFO L85 PathProgramCache]: Analyzing trace with hash -763747263, now seen corresponding path program 142 times [2022-01-17 23:29:00,794 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:00,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868223270] [2022-01-17 23:29:00,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:00,795 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:00,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:01,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:01,350 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:01,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868223270] [2022-01-17 23:29:01,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868223270] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:01,350 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:01,350 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-17 23:29:01,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229624971] [2022-01-17 23:29:01,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:01,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-17 23:29:01,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:01,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-17 23:29:01,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2022-01-17 23:29:01,351 INFO L87 Difference]: Start difference. First operand 2184 states and 5529 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:03,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:03,382 INFO L93 Difference]: Finished difference Result 2342 states and 5818 transitions. [2022-01-17 23:29:03,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:29:03,382 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:29:03,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:03,385 INFO L225 Difference]: With dead ends: 2342 [2022-01-17 23:29:03,385 INFO L226 Difference]: Without dead ends: 2204 [2022-01-17 23:29:03,385 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 464 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=520, Invalid=2342, Unknown=0, NotChecked=0, Total=2862 [2022-01-17 23:29:03,386 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 944 mSDsluCounter, 2178 mSDsCounter, 0 mSdLazyCounter, 1307 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 944 SdHoareTripleChecker+Valid, 2235 SdHoareTripleChecker+Invalid, 1390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 1307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:03,386 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [944 Valid, 2235 Invalid, 1390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 1307 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:29:03,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2204 states. [2022-01-17 23:29:03,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2204 to 2182. [2022-01-17 23:29:03,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2182 states, 2181 states have (on average 2.5327831270059606) internal successors, (5524), 2181 states have internal predecessors, (5524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:03,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2182 states to 2182 states and 5524 transitions. [2022-01-17 23:29:03,404 INFO L78 Accepts]: Start accepts. Automaton has 2182 states and 5524 transitions. Word has length 137 [2022-01-17 23:29:03,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:03,404 INFO L470 AbstractCegarLoop]: Abstraction has 2182 states and 5524 transitions. [2022-01-17 23:29:03,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:03,404 INFO L276 IsEmpty]: Start isEmpty. Operand 2182 states and 5524 transitions. [2022-01-17 23:29:03,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:29:03,406 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:03,406 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:03,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2022-01-17 23:29:03,406 INFO L402 AbstractCegarLoop]: === Iteration 187 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:29:03,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:03,406 INFO L85 PathProgramCache]: Analyzing trace with hash 383406207, now seen corresponding path program 143 times [2022-01-17 23:29:03,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:03,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392159802] [2022-01-17 23:29:03,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:03,406 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:03,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:04,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:04,117 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:04,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392159802] [2022-01-17 23:29:04,117 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392159802] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:04,117 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:04,117 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2022-01-17 23:29:04,118 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797491239] [2022-01-17 23:29:04,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:04,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-01-17 23:29:04,118 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:04,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-01-17 23:29:04,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=971, Unknown=0, NotChecked=0, Total=1056 [2022-01-17 23:29:04,119 INFO L87 Difference]: Start difference. First operand 2182 states and 5524 transitions. Second operand has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:06,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:06,231 INFO L93 Difference]: Finished difference Result 2354 states and 5836 transitions. [2022-01-17 23:29:06,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-17 23:29:06,232 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:29:06,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:06,234 INFO L225 Difference]: With dead ends: 2354 [2022-01-17 23:29:06,234 INFO L226 Difference]: Without dead ends: 2206 [2022-01-17 23:29:06,235 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 748 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=712, Invalid=3578, Unknown=0, NotChecked=0, Total=4290 [2022-01-17 23:29:06,235 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 995 mSDsluCounter, 2360 mSDsCounter, 0 mSdLazyCounter, 1585 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 995 SdHoareTripleChecker+Valid, 2399 SdHoareTripleChecker+Invalid, 1681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:06,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [995 Valid, 2399 Invalid, 1681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 1585 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:29:06,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2206 states. [2022-01-17 23:29:06,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2206 to 2178. [2022-01-17 23:29:06,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2178 states, 2177 states have (on average 2.5319246669728983) internal successors, (5512), 2177 states have internal predecessors, (5512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:06,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2178 states to 2178 states and 5512 transitions. [2022-01-17 23:29:06,254 INFO L78 Accepts]: Start accepts. Automaton has 2178 states and 5512 transitions. Word has length 137 [2022-01-17 23:29:06,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:06,254 INFO L470 AbstractCegarLoop]: Abstraction has 2178 states and 5512 transitions. [2022-01-17 23:29:06,254 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:06,254 INFO L276 IsEmpty]: Start isEmpty. Operand 2178 states and 5512 transitions. [2022-01-17 23:29:06,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:29:06,256 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:06,256 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:06,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2022-01-17 23:29:06,256 INFO L402 AbstractCegarLoop]: === Iteration 188 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:29:06,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:06,257 INFO L85 PathProgramCache]: Analyzing trace with hash -270147227, now seen corresponding path program 144 times [2022-01-17 23:29:06,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:06,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697439687] [2022-01-17 23:29:06,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:06,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:06,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:06,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:06,942 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:06,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697439687] [2022-01-17 23:29:06,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697439687] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:06,942 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:06,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-17 23:29:06,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299296918] [2022-01-17 23:29:06,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:06,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-17 23:29:06,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:06,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-17 23:29:06,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2022-01-17 23:29:06,943 INFO L87 Difference]: Start difference. First operand 2178 states and 5512 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:08,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:08,971 INFO L93 Difference]: Finished difference Result 2305 states and 5737 transitions. [2022-01-17 23:29:08,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:29:08,972 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:29:08,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:08,974 INFO L225 Difference]: With dead ends: 2305 [2022-01-17 23:29:08,974 INFO L226 Difference]: Without dead ends: 2194 [2022-01-17 23:29:08,975 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 393 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=498, Invalid=2258, Unknown=0, NotChecked=0, Total=2756 [2022-01-17 23:29:08,975 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 1063 mSDsluCounter, 1785 mSDsCounter, 0 mSdLazyCounter, 1086 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1063 SdHoareTripleChecker+Valid, 1878 SdHoareTripleChecker+Invalid, 1181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1086 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:08,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1063 Valid, 1878 Invalid, 1181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 1086 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:29:08,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2194 states. [2022-01-17 23:29:08,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2194 to 2174. [2022-01-17 23:29:08,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2174 states, 2173 states have (on average 2.532903819604234) internal successors, (5504), 2173 states have internal predecessors, (5504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:08,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2174 states to 2174 states and 5504 transitions. [2022-01-17 23:29:08,993 INFO L78 Accepts]: Start accepts. Automaton has 2174 states and 5504 transitions. Word has length 137 [2022-01-17 23:29:08,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:08,993 INFO L470 AbstractCegarLoop]: Abstraction has 2174 states and 5504 transitions. [2022-01-17 23:29:08,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:08,993 INFO L276 IsEmpty]: Start isEmpty. Operand 2174 states and 5504 transitions. [2022-01-17 23:29:08,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:29:08,995 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:08,995 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:08,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2022-01-17 23:29:08,995 INFO L402 AbstractCegarLoop]: === Iteration 189 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:29:08,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:08,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1494108987, now seen corresponding path program 145 times [2022-01-17 23:29:08,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:08,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069054086] [2022-01-17 23:29:08,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:08,996 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:09,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:09,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:09,830 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:09,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069054086] [2022-01-17 23:29:09,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069054086] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:09,830 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:09,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-17 23:29:09,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017359800] [2022-01-17 23:29:09,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:09,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-17 23:29:09,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:09,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-17 23:29:09,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=794, Unknown=0, NotChecked=0, Total=870 [2022-01-17 23:29:09,830 INFO L87 Difference]: Start difference. First operand 2174 states and 5504 transitions. Second operand has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:11,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:11,792 INFO L93 Difference]: Finished difference Result 2357 states and 5853 transitions. [2022-01-17 23:29:11,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:29:11,792 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:29:11,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:11,795 INFO L225 Difference]: With dead ends: 2357 [2022-01-17 23:29:11,795 INFO L226 Difference]: Without dead ends: 2248 [2022-01-17 23:29:11,795 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 520 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=532, Invalid=2548, Unknown=0, NotChecked=0, Total=3080 [2022-01-17 23:29:11,796 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 1030 mSDsluCounter, 2022 mSDsCounter, 0 mSdLazyCounter, 1182 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1030 SdHoareTripleChecker+Valid, 2111 SdHoareTripleChecker+Invalid, 1269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 1182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:11,796 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1030 Valid, 2111 Invalid, 1269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 1182 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:29:11,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2248 states. [2022-01-17 23:29:11,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2248 to 2184. [2022-01-17 23:29:11,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2184 states, 2183 states have (on average 2.53183692166743) internal successors, (5527), 2183 states have internal predecessors, (5527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:11,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2184 states to 2184 states and 5527 transitions. [2022-01-17 23:29:11,815 INFO L78 Accepts]: Start accepts. Automaton has 2184 states and 5527 transitions. Word has length 137 [2022-01-17 23:29:11,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:11,815 INFO L470 AbstractCegarLoop]: Abstraction has 2184 states and 5527 transitions. [2022-01-17 23:29:11,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:11,815 INFO L276 IsEmpty]: Start isEmpty. Operand 2184 states and 5527 transitions. [2022-01-17 23:29:11,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:29:11,817 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:11,817 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:11,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2022-01-17 23:29:11,817 INFO L402 AbstractCegarLoop]: === Iteration 190 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:29:11,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:11,817 INFO L85 PathProgramCache]: Analyzing trace with hash 931591791, now seen corresponding path program 146 times [2022-01-17 23:29:11,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:11,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931811099] [2022-01-17 23:29:11,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:11,817 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:11,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:12,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:12,713 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:12,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931811099] [2022-01-17 23:29:12,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931811099] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:12,714 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:12,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2022-01-17 23:29:12,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235107557] [2022-01-17 23:29:12,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:12,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-01-17 23:29:12,714 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:12,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-01-17 23:29:12,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=971, Unknown=0, NotChecked=0, Total=1056 [2022-01-17 23:29:12,714 INFO L87 Difference]: Start difference. First operand 2184 states and 5527 transitions. Second operand has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:15,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:15,015 INFO L93 Difference]: Finished difference Result 2317 states and 5763 transitions. [2022-01-17 23:29:15,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-17 23:29:15,015 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:29:15,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:15,018 INFO L225 Difference]: With dead ends: 2317 [2022-01-17 23:29:15,018 INFO L226 Difference]: Without dead ends: 2214 [2022-01-17 23:29:15,018 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 757 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=696, Invalid=3594, Unknown=0, NotChecked=0, Total=4290 [2022-01-17 23:29:15,018 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 1133 mSDsluCounter, 2358 mSDsCounter, 0 mSdLazyCounter, 1469 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1133 SdHoareTripleChecker+Valid, 2423 SdHoareTripleChecker+Invalid, 1565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:15,018 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1133 Valid, 2423 Invalid, 1565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 1469 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:29:15,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2214 states. [2022-01-17 23:29:15,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2214 to 2182. [2022-01-17 23:29:15,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2182 states, 2181 states have (on average 2.531866116460339) internal successors, (5522), 2181 states have internal predecessors, (5522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:15,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2182 states to 2182 states and 5522 transitions. [2022-01-17 23:29:15,036 INFO L78 Accepts]: Start accepts. Automaton has 2182 states and 5522 transitions. Word has length 137 [2022-01-17 23:29:15,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:15,036 INFO L470 AbstractCegarLoop]: Abstraction has 2182 states and 5522 transitions. [2022-01-17 23:29:15,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:15,037 INFO L276 IsEmpty]: Start isEmpty. Operand 2182 states and 5522 transitions. [2022-01-17 23:29:15,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:29:15,038 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:15,038 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:15,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2022-01-17 23:29:15,039 INFO L402 AbstractCegarLoop]: === Iteration 191 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:29:15,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:15,039 INFO L85 PathProgramCache]: Analyzing trace with hash 71630113, now seen corresponding path program 147 times [2022-01-17 23:29:15,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:15,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297382675] [2022-01-17 23:29:15,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:15,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:15,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:15,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:15,982 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:15,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297382675] [2022-01-17 23:29:15,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297382675] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:15,982 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:15,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2022-01-17 23:29:15,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510220550] [2022-01-17 23:29:15,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:15,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-01-17 23:29:15,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:15,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-01-17 23:29:15,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=971, Unknown=0, NotChecked=0, Total=1056 [2022-01-17 23:29:15,983 INFO L87 Difference]: Start difference. First operand 2182 states and 5522 transitions. Second operand has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:18,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:18,633 INFO L93 Difference]: Finished difference Result 2315 states and 5758 transitions. [2022-01-17 23:29:18,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-17 23:29:18,633 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:29:18,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:18,636 INFO L225 Difference]: With dead ends: 2315 [2022-01-17 23:29:18,636 INFO L226 Difference]: Without dead ends: 2202 [2022-01-17 23:29:18,636 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 748 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=712, Invalid=3578, Unknown=0, NotChecked=0, Total=4290 [2022-01-17 23:29:18,636 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 993 mSDsluCounter, 2084 mSDsCounter, 0 mSdLazyCounter, 1351 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 993 SdHoareTripleChecker+Valid, 2159 SdHoareTripleChecker+Invalid, 1446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:18,636 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [993 Valid, 2159 Invalid, 1446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 1351 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:29:18,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2202 states. [2022-01-17 23:29:18,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2202 to 2178. [2022-01-17 23:29:18,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2178 states, 2177 states have (on average 2.531005971520441) internal successors, (5510), 2177 states have internal predecessors, (5510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:18,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2178 states to 2178 states and 5510 transitions. [2022-01-17 23:29:18,655 INFO L78 Accepts]: Start accepts. Automaton has 2178 states and 5510 transitions. Word has length 137 [2022-01-17 23:29:18,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:18,655 INFO L470 AbstractCegarLoop]: Abstraction has 2178 states and 5510 transitions. [2022-01-17 23:29:18,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:18,655 INFO L276 IsEmpty]: Start isEmpty. Operand 2178 states and 5510 transitions. [2022-01-17 23:29:18,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:29:18,658 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:18,658 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:18,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2022-01-17 23:29:18,658 INFO L402 AbstractCegarLoop]: === Iteration 192 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:29:18,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:18,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1555599811, now seen corresponding path program 148 times [2022-01-17 23:29:18,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:18,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765174201] [2022-01-17 23:29:18,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:18,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:18,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:19,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:19,325 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:19,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765174201] [2022-01-17 23:29:19,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765174201] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:19,325 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:19,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-17 23:29:19,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825012343] [2022-01-17 23:29:19,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:19,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-17 23:29:19,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:19,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-17 23:29:19,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=842, Unknown=0, NotChecked=0, Total=930 [2022-01-17 23:29:19,326 INFO L87 Difference]: Start difference. First operand 2178 states and 5510 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:20,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:20,958 INFO L93 Difference]: Finished difference Result 2336 states and 5799 transitions. [2022-01-17 23:29:20,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:29:20,958 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:29:20,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:20,961 INFO L225 Difference]: With dead ends: 2336 [2022-01-17 23:29:20,961 INFO L226 Difference]: Without dead ends: 2188 [2022-01-17 23:29:20,961 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 593 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=541, Invalid=2539, Unknown=0, NotChecked=0, Total=3080 [2022-01-17 23:29:20,961 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 878 mSDsluCounter, 2044 mSDsCounter, 0 mSdLazyCounter, 1238 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 878 SdHoareTripleChecker+Valid, 2108 SdHoareTripleChecker+Invalid, 1319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:20,961 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [878 Valid, 2108 Invalid, 1319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1238 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:29:20,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2188 states. [2022-01-17 23:29:20,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2188 to 2172. [2022-01-17 23:29:20,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2172 states, 2171 states have (on average 2.532934131736527) internal successors, (5499), 2171 states have internal predecessors, (5499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:20,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2172 states to 2172 states and 5499 transitions. [2022-01-17 23:29:20,980 INFO L78 Accepts]: Start accepts. Automaton has 2172 states and 5499 transitions. Word has length 137 [2022-01-17 23:29:20,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:20,980 INFO L470 AbstractCegarLoop]: Abstraction has 2172 states and 5499 transitions. [2022-01-17 23:29:20,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:20,980 INFO L276 IsEmpty]: Start isEmpty. Operand 2172 states and 5499 transitions. [2022-01-17 23:29:20,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:29:20,982 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:20,982 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:20,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2022-01-17 23:29:20,982 INFO L402 AbstractCegarLoop]: === Iteration 193 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:29:20,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:20,983 INFO L85 PathProgramCache]: Analyzing trace with hash -311746203, now seen corresponding path program 149 times [2022-01-17 23:29:20,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:20,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792203257] [2022-01-17 23:29:20,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:20,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:21,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:21,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:21,503 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:21,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792203257] [2022-01-17 23:29:21,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792203257] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:21,503 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:21,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-17 23:29:21,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928348446] [2022-01-17 23:29:21,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:21,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-17 23:29:21,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:21,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-17 23:29:21,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2022-01-17 23:29:21,504 INFO L87 Difference]: Start difference. First operand 2172 states and 5499 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:23,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:23,095 INFO L93 Difference]: Finished difference Result 2409 states and 5983 transitions. [2022-01-17 23:29:23,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-17 23:29:23,095 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:29:23,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:23,098 INFO L225 Difference]: With dead ends: 2409 [2022-01-17 23:29:23,098 INFO L226 Difference]: Without dead ends: 2270 [2022-01-17 23:29:23,098 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 497 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=527, Invalid=2443, Unknown=0, NotChecked=0, Total=2970 [2022-01-17 23:29:23,099 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 1032 mSDsluCounter, 1867 mSDsCounter, 0 mSdLazyCounter, 1036 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1032 SdHoareTripleChecker+Valid, 1967 SdHoareTripleChecker+Invalid, 1122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:23,099 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1032 Valid, 1967 Invalid, 1122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 1036 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:29:23,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2270 states. [2022-01-17 23:29:23,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2270 to 2202. [2022-01-17 23:29:23,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2202 states, 2201 states have (on average 2.529759200363471) internal successors, (5568), 2201 states have internal predecessors, (5568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:23,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2202 states to 2202 states and 5568 transitions. [2022-01-17 23:29:23,118 INFO L78 Accepts]: Start accepts. Automaton has 2202 states and 5568 transitions. Word has length 137 [2022-01-17 23:29:23,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:23,118 INFO L470 AbstractCegarLoop]: Abstraction has 2202 states and 5568 transitions. [2022-01-17 23:29:23,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:23,118 INFO L276 IsEmpty]: Start isEmpty. Operand 2202 states and 5568 transitions. [2022-01-17 23:29:23,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:29:23,120 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:23,120 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:23,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2022-01-17 23:29:23,120 INFO L402 AbstractCegarLoop]: === Iteration 194 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:29:23,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:23,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1511590543, now seen corresponding path program 150 times [2022-01-17 23:29:23,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:23,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704731138] [2022-01-17 23:29:23,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:23,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:23,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:23,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:23,631 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:23,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704731138] [2022-01-17 23:29:23,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704731138] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:23,631 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:23,631 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-17 23:29:23,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962494017] [2022-01-17 23:29:23,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:23,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-17 23:29:23,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:23,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-17 23:29:23,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2022-01-17 23:29:23,632 INFO L87 Difference]: Start difference. First operand 2202 states and 5568 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:25,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:25,476 INFO L93 Difference]: Finished difference Result 2377 states and 5901 transitions. [2022-01-17 23:29:25,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-17 23:29:25,477 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:29:25,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:25,479 INFO L225 Difference]: With dead ends: 2377 [2022-01-17 23:29:25,479 INFO L226 Difference]: Without dead ends: 2268 [2022-01-17 23:29:25,480 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 495 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=532, Invalid=2438, Unknown=0, NotChecked=0, Total=2970 [2022-01-17 23:29:25,481 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 979 mSDsluCounter, 1837 mSDsCounter, 0 mSdLazyCounter, 1027 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 979 SdHoareTripleChecker+Valid, 1933 SdHoareTripleChecker+Invalid, 1110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 1027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:25,481 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [979 Valid, 1933 Invalid, 1110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 1027 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:29:25,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2268 states. [2022-01-17 23:29:25,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2268 to 2204. [2022-01-17 23:29:25,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2204 states, 2203 states have (on average 2.5288243304584657) internal successors, (5571), 2203 states have internal predecessors, (5571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:25,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2204 states to 2204 states and 5571 transitions. [2022-01-17 23:29:25,500 INFO L78 Accepts]: Start accepts. Automaton has 2204 states and 5571 transitions. Word has length 137 [2022-01-17 23:29:25,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:25,500 INFO L470 AbstractCegarLoop]: Abstraction has 2204 states and 5571 transitions. [2022-01-17 23:29:25,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:25,500 INFO L276 IsEmpty]: Start isEmpty. Operand 2204 states and 5571 transitions. [2022-01-17 23:29:25,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:29:25,502 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:25,502 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:25,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2022-01-17 23:29:25,502 INFO L402 AbstractCegarLoop]: === Iteration 195 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:29:25,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:25,502 INFO L85 PathProgramCache]: Analyzing trace with hash 949073347, now seen corresponding path program 151 times [2022-01-17 23:29:25,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:25,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754972584] [2022-01-17 23:29:25,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:25,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:25,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:26,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:26,099 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:26,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754972584] [2022-01-17 23:29:26,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754972584] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:26,099 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:26,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-17 23:29:26,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605630805] [2022-01-17 23:29:26,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:26,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-17 23:29:26,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:26,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-17 23:29:26,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=842, Unknown=0, NotChecked=0, Total=930 [2022-01-17 23:29:26,100 INFO L87 Difference]: Start difference. First operand 2204 states and 5571 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:27,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:27,798 INFO L93 Difference]: Finished difference Result 2333 states and 5805 transitions. [2022-01-17 23:29:27,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:29:27,798 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:29:27,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:27,801 INFO L225 Difference]: With dead ends: 2333 [2022-01-17 23:29:27,801 INFO L226 Difference]: Without dead ends: 2224 [2022-01-17 23:29:27,801 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 617 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=563, Invalid=2629, Unknown=0, NotChecked=0, Total=3192 [2022-01-17 23:29:27,802 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 1089 mSDsluCounter, 1907 mSDsCounter, 0 mSdLazyCounter, 1112 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1089 SdHoareTripleChecker+Valid, 1999 SdHoareTripleChecker+Invalid, 1209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 1112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:27,802 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1089 Valid, 1999 Invalid, 1209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 1112 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:29:27,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2224 states. [2022-01-17 23:29:27,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2224 to 2196. [2022-01-17 23:29:27,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2196 states, 2195 states have (on average 2.529840546697039) internal successors, (5553), 2195 states have internal predecessors, (5553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:27,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2196 states to 2196 states and 5553 transitions. [2022-01-17 23:29:27,821 INFO L78 Accepts]: Start accepts. Automaton has 2196 states and 5553 transitions. Word has length 137 [2022-01-17 23:29:27,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:27,821 INFO L470 AbstractCegarLoop]: Abstraction has 2196 states and 5553 transitions. [2022-01-17 23:29:27,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:27,821 INFO L276 IsEmpty]: Start isEmpty. Operand 2196 states and 5553 transitions. [2022-01-17 23:29:27,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:29:27,823 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:27,823 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:27,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2022-01-17 23:29:27,823 INFO L402 AbstractCegarLoop]: === Iteration 196 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:29:27,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:27,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1198579583, now seen corresponding path program 152 times [2022-01-17 23:29:27,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:27,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373320870] [2022-01-17 23:29:27,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:27,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:27,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:28,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:28,372 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:28,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373320870] [2022-01-17 23:29:28,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373320870] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:28,372 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:28,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-17 23:29:28,372 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407501514] [2022-01-17 23:29:28,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:28,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-17 23:29:28,373 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:28,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-17 23:29:28,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2022-01-17 23:29:28,373 INFO L87 Difference]: Start difference. First operand 2196 states and 5553 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:29,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:29,996 INFO L93 Difference]: Finished difference Result 2387 states and 5918 transitions. [2022-01-17 23:29:29,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:29:29,996 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:29:29,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:29,999 INFO L225 Difference]: With dead ends: 2387 [2022-01-17 23:29:29,999 INFO L226 Difference]: Without dead ends: 2278 [2022-01-17 23:29:30,000 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 470 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=510, Invalid=2352, Unknown=0, NotChecked=0, Total=2862 [2022-01-17 23:29:30,000 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 883 mSDsluCounter, 1717 mSDsCounter, 0 mSdLazyCounter, 981 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 883 SdHoareTripleChecker+Valid, 1815 SdHoareTripleChecker+Invalid, 1057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 981 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:30,000 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [883 Valid, 1815 Invalid, 1057 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 981 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:29:30,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2278 states. [2022-01-17 23:29:30,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2278 to 2206. [2022-01-17 23:29:30,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2206 states, 2205 states have (on average 2.528798185941043) internal successors, (5576), 2205 states have internal predecessors, (5576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:30,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2206 states to 2206 states and 5576 transitions. [2022-01-17 23:29:30,021 INFO L78 Accepts]: Start accepts. Automaton has 2206 states and 5576 transitions. Word has length 137 [2022-01-17 23:29:30,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:30,021 INFO L470 AbstractCegarLoop]: Abstraction has 2206 states and 5576 transitions. [2022-01-17 23:29:30,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:30,021 INFO L276 IsEmpty]: Start isEmpty. Operand 2206 states and 5576 transitions. [2022-01-17 23:29:30,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:29:30,023 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:30,023 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:30,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2022-01-17 23:29:30,024 INFO L402 AbstractCegarLoop]: === Iteration 197 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:29:30,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:30,024 INFO L85 PathProgramCache]: Analyzing trace with hash 636062387, now seen corresponding path program 153 times [2022-01-17 23:29:30,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:30,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450557353] [2022-01-17 23:29:30,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:30,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:30,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:30,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:30,772 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:30,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450557353] [2022-01-17 23:29:30,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450557353] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:30,773 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:30,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2022-01-17 23:29:30,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112621596] [2022-01-17 23:29:30,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:30,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-01-17 23:29:30,773 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:30,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-01-17 23:29:30,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=897, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:29:30,773 INFO L87 Difference]: Start difference. First operand 2206 states and 5576 transitions. Second operand has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:32,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:32,921 INFO L93 Difference]: Finished difference Result 2347 states and 5828 transitions. [2022-01-17 23:29:32,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-17 23:29:32,921 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:29:32,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:32,924 INFO L225 Difference]: With dead ends: 2347 [2022-01-17 23:29:32,924 INFO L226 Difference]: Without dead ends: 2244 [2022-01-17 23:29:32,924 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 835 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=714, Invalid=3318, Unknown=0, NotChecked=0, Total=4032 [2022-01-17 23:29:32,924 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 1180 mSDsluCounter, 2070 mSDsCounter, 0 mSdLazyCounter, 1282 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1180 SdHoareTripleChecker+Valid, 2149 SdHoareTripleChecker+Invalid, 1382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:32,924 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1180 Valid, 2149 Invalid, 1382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1282 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:29:32,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2244 states. [2022-01-17 23:29:32,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2244 to 2204. [2022-01-17 23:29:32,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2204 states, 2203 states have (on average 2.5288243304584657) internal successors, (5571), 2203 states have internal predecessors, (5571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:32,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2204 states to 2204 states and 5571 transitions. [2022-01-17 23:29:32,943 INFO L78 Accepts]: Start accepts. Automaton has 2204 states and 5571 transitions. Word has length 137 [2022-01-17 23:29:32,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:32,943 INFO L470 AbstractCegarLoop]: Abstraction has 2204 states and 5571 transitions. [2022-01-17 23:29:32,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:32,943 INFO L276 IsEmpty]: Start isEmpty. Operand 2204 states and 5571 transitions. [2022-01-17 23:29:32,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:29:32,945 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:32,945 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:32,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2022-01-17 23:29:32,945 INFO L402 AbstractCegarLoop]: === Iteration 198 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:29:32,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:32,946 INFO L85 PathProgramCache]: Analyzing trace with hash -223899291, now seen corresponding path program 154 times [2022-01-17 23:29:32,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:32,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268568730] [2022-01-17 23:29:32,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:32,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:32,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:33,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:33,914 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:33,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268568730] [2022-01-17 23:29:33,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268568730] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:33,914 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:33,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2022-01-17 23:29:33,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101684264] [2022-01-17 23:29:33,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:33,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-01-17 23:29:33,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:33,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-01-17 23:29:33,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=971, Unknown=0, NotChecked=0, Total=1056 [2022-01-17 23:29:33,915 INFO L87 Difference]: Start difference. First operand 2204 states and 5571 transitions. Second operand has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:36,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:36,639 INFO L93 Difference]: Finished difference Result 2345 states and 5823 transitions. [2022-01-17 23:29:36,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-17 23:29:36,640 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:29:36,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:36,642 INFO L225 Difference]: With dead ends: 2345 [2022-01-17 23:29:36,642 INFO L226 Difference]: Without dead ends: 2214 [2022-01-17 23:29:36,643 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 777 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=740, Invalid=3682, Unknown=0, NotChecked=0, Total=4422 [2022-01-17 23:29:36,643 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 1090 mSDsluCounter, 2041 mSDsCounter, 0 mSdLazyCounter, 1338 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1090 SdHoareTripleChecker+Valid, 2119 SdHoareTripleChecker+Invalid, 1438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:36,643 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1090 Valid, 2119 Invalid, 1438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1338 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:29:36,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2214 states. [2022-01-17 23:29:36,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2214 to 2182. [2022-01-17 23:29:36,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2182 states, 2181 states have (on average 2.5281980742778543) internal successors, (5514), 2181 states have internal predecessors, (5514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:36,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2182 states to 2182 states and 5514 transitions. [2022-01-17 23:29:36,662 INFO L78 Accepts]: Start accepts. Automaton has 2182 states and 5514 transitions. Word has length 137 [2022-01-17 23:29:36,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:36,662 INFO L470 AbstractCegarLoop]: Abstraction has 2182 states and 5514 transitions. [2022-01-17 23:29:36,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:36,662 INFO L276 IsEmpty]: Start isEmpty. Operand 2182 states and 5514 transitions. [2022-01-17 23:29:36,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:29:36,664 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:36,664 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:36,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2022-01-17 23:29:36,664 INFO L402 AbstractCegarLoop]: === Iteration 199 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:29:36,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:36,664 INFO L85 PathProgramCache]: Analyzing trace with hash 686999131, now seen corresponding path program 155 times [2022-01-17 23:29:36,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:36,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807447127] [2022-01-17 23:29:36,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:36,664 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:36,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:37,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:37,263 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:37,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807447127] [2022-01-17 23:29:37,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807447127] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:37,263 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:37,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-17 23:29:37,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154273602] [2022-01-17 23:29:37,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:37,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-17 23:29:37,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:37,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-17 23:29:37,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=794, Unknown=0, NotChecked=0, Total=870 [2022-01-17 23:29:37,264 INFO L87 Difference]: Start difference. First operand 2182 states and 5514 transitions. Second operand has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:38,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:38,898 INFO L93 Difference]: Finished difference Result 2348 states and 5819 transitions. [2022-01-17 23:29:38,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:29:38,898 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:29:38,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:38,900 INFO L225 Difference]: With dead ends: 2348 [2022-01-17 23:29:38,901 INFO L226 Difference]: Without dead ends: 2190 [2022-01-17 23:29:38,901 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 490 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=524, Invalid=2446, Unknown=0, NotChecked=0, Total=2970 [2022-01-17 23:29:38,901 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 983 mSDsluCounter, 2257 mSDsCounter, 0 mSdLazyCounter, 1373 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 983 SdHoareTripleChecker+Valid, 2310 SdHoareTripleChecker+Invalid, 1469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:38,901 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [983 Valid, 2310 Invalid, 1469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 1373 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:29:38,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2190 states. [2022-01-17 23:29:38,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2190 to 2166. [2022-01-17 23:29:38,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2166 states, 2165 states have (on average 2.5325635103926096) internal successors, (5483), 2165 states have internal predecessors, (5483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:38,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2166 states to 2166 states and 5483 transitions. [2022-01-17 23:29:38,919 INFO L78 Accepts]: Start accepts. Automaton has 2166 states and 5483 transitions. Word has length 137 [2022-01-17 23:29:38,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:38,919 INFO L470 AbstractCegarLoop]: Abstraction has 2166 states and 5483 transitions. [2022-01-17 23:29:38,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:38,920 INFO L276 IsEmpty]: Start isEmpty. Operand 2166 states and 5483 transitions. [2022-01-17 23:29:38,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:29:38,921 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:38,922 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:38,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2022-01-17 23:29:38,922 INFO L402 AbstractCegarLoop]: === Iteration 200 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:29:38,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:38,922 INFO L85 PathProgramCache]: Analyzing trace with hash -233529179, now seen corresponding path program 156 times [2022-01-17 23:29:38,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:38,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687199479] [2022-01-17 23:29:38,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:38,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:38,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:39,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:39,813 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:39,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687199479] [2022-01-17 23:29:39,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687199479] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:39,813 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:39,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2022-01-17 23:29:39,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831059479] [2022-01-17 23:29:39,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:39,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-01-17 23:29:39,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:39,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-01-17 23:29:39,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=896, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:29:39,814 INFO L87 Difference]: Start difference. First operand 2166 states and 5483 transitions. Second operand has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:41,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:41,890 INFO L93 Difference]: Finished difference Result 2414 states and 5962 transitions. [2022-01-17 23:29:41,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-17 23:29:41,890 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:29:41,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:41,893 INFO L225 Difference]: With dead ends: 2414 [2022-01-17 23:29:41,893 INFO L226 Difference]: Without dead ends: 2265 [2022-01-17 23:29:41,893 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 868 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=700, Invalid=3332, Unknown=0, NotChecked=0, Total=4032 [2022-01-17 23:29:41,893 INFO L933 BasicCegarLoop]: 152 mSDtfsCounter, 1240 mSDsluCounter, 2171 mSDsCounter, 0 mSdLazyCounter, 1334 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1240 SdHoareTripleChecker+Valid, 2244 SdHoareTripleChecker+Invalid, 1454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 1334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:41,893 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1240 Valid, 2244 Invalid, 1454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 1334 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:29:41,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2265 states. [2022-01-17 23:29:41,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2265 to 2176. [2022-01-17 23:29:41,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2176 states, 2175 states have (on average 2.5314942528735633) internal successors, (5506), 2175 states have internal predecessors, (5506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:41,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2176 states to 2176 states and 5506 transitions. [2022-01-17 23:29:41,912 INFO L78 Accepts]: Start accepts. Automaton has 2176 states and 5506 transitions. Word has length 137 [2022-01-17 23:29:41,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:41,912 INFO L470 AbstractCegarLoop]: Abstraction has 2176 states and 5506 transitions. [2022-01-17 23:29:41,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:41,912 INFO L276 IsEmpty]: Start isEmpty. Operand 2176 states and 5506 transitions. [2022-01-17 23:29:41,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:29:41,914 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:41,914 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:41,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2022-01-17 23:29:41,914 INFO L402 AbstractCegarLoop]: === Iteration 201 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:29:41,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:41,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1021176191, now seen corresponding path program 157 times [2022-01-17 23:29:41,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:41,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831236769] [2022-01-17 23:29:41,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:41,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:41,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:42,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:42,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:42,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831236769] [2022-01-17 23:29:42,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831236769] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:42,669 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:42,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-17 23:29:42,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628623621] [2022-01-17 23:29:42,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:42,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-17 23:29:42,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:42,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-17 23:29:42,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2022-01-17 23:29:42,669 INFO L87 Difference]: Start difference. First operand 2176 states and 5506 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:44,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:44,518 INFO L93 Difference]: Finished difference Result 2344 states and 5812 transitions. [2022-01-17 23:29:44,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:29:44,518 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:29:44,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:44,521 INFO L225 Difference]: With dead ends: 2344 [2022-01-17 23:29:44,521 INFO L226 Difference]: Without dead ends: 2206 [2022-01-17 23:29:44,521 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=520, Invalid=2342, Unknown=0, NotChecked=0, Total=2862 [2022-01-17 23:29:44,521 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 974 mSDsluCounter, 2175 mSDsCounter, 0 mSdLazyCounter, 1270 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 974 SdHoareTripleChecker+Valid, 2249 SdHoareTripleChecker+Invalid, 1357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 1270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:44,521 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [974 Valid, 2249 Invalid, 1357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 1270 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:29:44,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2206 states. [2022-01-17 23:29:44,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2206 to 2174. [2022-01-17 23:29:44,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2174 states, 2173 states have (on average 2.5315232397606997) internal successors, (5501), 2173 states have internal predecessors, (5501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:44,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2174 states to 2174 states and 5501 transitions. [2022-01-17 23:29:44,540 INFO L78 Accepts]: Start accepts. Automaton has 2174 states and 5501 transitions. Word has length 137 [2022-01-17 23:29:44,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:44,540 INFO L470 AbstractCegarLoop]: Abstraction has 2174 states and 5501 transitions. [2022-01-17 23:29:44,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:44,540 INFO L276 IsEmpty]: Start isEmpty. Operand 2174 states and 5501 transitions. [2022-01-17 23:29:44,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:29:44,542 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:44,542 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:44,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2022-01-17 23:29:44,543 INFO L402 AbstractCegarLoop]: === Iteration 202 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:29:44,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:44,543 INFO L85 PathProgramCache]: Analyzing trace with hash 125977279, now seen corresponding path program 158 times [2022-01-17 23:29:44,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:44,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136327059] [2022-01-17 23:29:44,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:44,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:44,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:45,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:45,125 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:45,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136327059] [2022-01-17 23:29:45,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136327059] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:45,125 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:45,125 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-17 23:29:45,125 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190122241] [2022-01-17 23:29:45,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:45,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-17 23:29:45,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:45,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-17 23:29:45,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2022-01-17 23:29:45,125 INFO L87 Difference]: Start difference. First operand 2174 states and 5501 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:46,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:46,843 INFO L93 Difference]: Finished difference Result 2356 states and 5830 transitions. [2022-01-17 23:29:46,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:29:46,844 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:29:46,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:46,847 INFO L225 Difference]: With dead ends: 2356 [2022-01-17 23:29:46,847 INFO L226 Difference]: Without dead ends: 2208 [2022-01-17 23:29:46,848 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 441 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=500, Invalid=2256, Unknown=0, NotChecked=0, Total=2756 [2022-01-17 23:29:46,848 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 966 mSDsluCounter, 2293 mSDsCounter, 0 mSdLazyCounter, 1402 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 966 SdHoareTripleChecker+Valid, 2362 SdHoareTripleChecker+Invalid, 1491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 1402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:46,848 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [966 Valid, 2362 Invalid, 1491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 1402 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:29:46,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2208 states. [2022-01-17 23:29:46,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2208 to 2170. [2022-01-17 23:29:46,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2170 states, 2169 states have (on average 2.5306592899953895) internal successors, (5489), 2169 states have internal predecessors, (5489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:46,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2170 states to 2170 states and 5489 transitions. [2022-01-17 23:29:46,875 INFO L78 Accepts]: Start accepts. Automaton has 2170 states and 5489 transitions. Word has length 137 [2022-01-17 23:29:46,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:46,875 INFO L470 AbstractCegarLoop]: Abstraction has 2170 states and 5489 transitions. [2022-01-17 23:29:46,875 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:46,875 INFO L276 IsEmpty]: Start isEmpty. Operand 2170 states and 5489 transitions. [2022-01-17 23:29:46,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:29:46,878 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:46,878 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:46,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2022-01-17 23:29:46,878 INFO L402 AbstractCegarLoop]: === Iteration 203 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:29:46,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:46,878 INFO L85 PathProgramCache]: Analyzing trace with hash -527576155, now seen corresponding path program 159 times [2022-01-17 23:29:46,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:46,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752281251] [2022-01-17 23:29:46,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:46,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:46,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:47,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:47,646 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:47,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752281251] [2022-01-17 23:29:47,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752281251] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:47,646 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:47,646 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-17 23:29:47,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903639491] [2022-01-17 23:29:47,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:47,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-17 23:29:47,646 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:47,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-17 23:29:47,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2022-01-17 23:29:47,647 INFO L87 Difference]: Start difference. First operand 2170 states and 5489 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:49,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:49,156 INFO L93 Difference]: Finished difference Result 2307 states and 5731 transitions. [2022-01-17 23:29:49,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:29:49,157 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:29:49,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:49,159 INFO L225 Difference]: With dead ends: 2307 [2022-01-17 23:29:49,159 INFO L226 Difference]: Without dead ends: 2196 [2022-01-17 23:29:49,160 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 441 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=500, Invalid=2256, Unknown=0, NotChecked=0, Total=2756 [2022-01-17 23:29:49,160 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 922 mSDsluCounter, 2010 mSDsCounter, 0 mSdLazyCounter, 1175 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 922 SdHoareTripleChecker+Valid, 2109 SdHoareTripleChecker+Invalid, 1262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 1175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:49,160 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [922 Valid, 2109 Invalid, 1262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 1175 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:29:49,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2196 states. [2022-01-17 23:29:49,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2196 to 2166. [2022-01-17 23:29:49,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2166 states, 2165 states have (on average 2.5316397228637415) internal successors, (5481), 2165 states have internal predecessors, (5481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:49,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2166 states to 2166 states and 5481 transitions. [2022-01-17 23:29:49,179 INFO L78 Accepts]: Start accepts. Automaton has 2166 states and 5481 transitions. Word has length 137 [2022-01-17 23:29:49,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:49,179 INFO L470 AbstractCegarLoop]: Abstraction has 2166 states and 5481 transitions. [2022-01-17 23:29:49,179 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:49,180 INFO L276 IsEmpty]: Start isEmpty. Operand 2166 states and 5481 transitions. [2022-01-17 23:29:49,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:29:49,182 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:49,182 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:49,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2022-01-17 23:29:49,182 INFO L402 AbstractCegarLoop]: === Iteration 204 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:29:49,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:49,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1236680059, now seen corresponding path program 160 times [2022-01-17 23:29:49,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:49,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515874492] [2022-01-17 23:29:49,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:49,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:49,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:49,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:49,681 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:49,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515874492] [2022-01-17 23:29:49,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515874492] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:49,681 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:49,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-17 23:29:49,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36275579] [2022-01-17 23:29:49,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:49,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-17 23:29:49,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:49,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-17 23:29:49,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2022-01-17 23:29:49,682 INFO L87 Difference]: Start difference. First operand 2166 states and 5481 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:51,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:51,546 INFO L93 Difference]: Finished difference Result 2349 states and 5830 transitions. [2022-01-17 23:29:51,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:29:51,546 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:29:51,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:51,549 INFO L225 Difference]: With dead ends: 2349 [2022-01-17 23:29:51,549 INFO L226 Difference]: Without dead ends: 2240 [2022-01-17 23:29:51,549 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 471 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=510, Invalid=2352, Unknown=0, NotChecked=0, Total=2862 [2022-01-17 23:29:51,549 INFO L933 BasicCegarLoop]: 152 mSDtfsCounter, 830 mSDsluCounter, 2343 mSDsCounter, 0 mSdLazyCounter, 1327 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 830 SdHoareTripleChecker+Valid, 2434 SdHoareTripleChecker+Invalid, 1396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:51,549 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [830 Valid, 2434 Invalid, 1396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1327 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:29:51,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2240 states. [2022-01-17 23:29:51,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2240 to 2176. [2022-01-17 23:29:51,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2176 states, 2175 states have (on average 2.530574712643678) internal successors, (5504), 2175 states have internal predecessors, (5504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:51,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2176 states to 2176 states and 5504 transitions. [2022-01-17 23:29:51,602 INFO L78 Accepts]: Start accepts. Automaton has 2176 states and 5504 transitions. Word has length 137 [2022-01-17 23:29:51,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:51,602 INFO L470 AbstractCegarLoop]: Abstraction has 2176 states and 5504 transitions. [2022-01-17 23:29:51,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:51,602 INFO L276 IsEmpty]: Start isEmpty. Operand 2176 states and 5504 transitions. [2022-01-17 23:29:51,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:29:51,604 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:51,604 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:51,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2022-01-17 23:29:51,605 INFO L402 AbstractCegarLoop]: === Iteration 205 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:29:51,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:51,606 INFO L85 PathProgramCache]: Analyzing trace with hash 674162863, now seen corresponding path program 161 times [2022-01-17 23:29:51,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:51,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128726873] [2022-01-17 23:29:51,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:51,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:51,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:52,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:52,490 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:52,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128726873] [2022-01-17 23:29:52,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128726873] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:52,490 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:52,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2022-01-17 23:29:52,490 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064296119] [2022-01-17 23:29:52,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:52,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-01-17 23:29:52,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:52,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-01-17 23:29:52,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=971, Unknown=0, NotChecked=0, Total=1056 [2022-01-17 23:29:52,490 INFO L87 Difference]: Start difference. First operand 2176 states and 5504 transitions. Second operand has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:54,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:54,426 INFO L93 Difference]: Finished difference Result 2309 states and 5740 transitions. [2022-01-17 23:29:54,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-17 23:29:54,426 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:29:54,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:54,429 INFO L225 Difference]: With dead ends: 2309 [2022-01-17 23:29:54,429 INFO L226 Difference]: Without dead ends: 2206 [2022-01-17 23:29:54,429 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 758 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=696, Invalid=3594, Unknown=0, NotChecked=0, Total=4290 [2022-01-17 23:29:54,429 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 1268 mSDsluCounter, 2211 mSDsCounter, 0 mSdLazyCounter, 1321 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1268 SdHoareTripleChecker+Valid, 2295 SdHoareTripleChecker+Invalid, 1431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 1321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:54,429 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1268 Valid, 2295 Invalid, 1431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 1321 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:29:54,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2206 states. [2022-01-17 23:29:54,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2206 to 2174. [2022-01-17 23:29:54,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2174 states, 2173 states have (on average 2.530602853198343) internal successors, (5499), 2173 states have internal predecessors, (5499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:54,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2174 states to 2174 states and 5499 transitions. [2022-01-17 23:29:54,447 INFO L78 Accepts]: Start accepts. Automaton has 2174 states and 5499 transitions. Word has length 137 [2022-01-17 23:29:54,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:54,448 INFO L470 AbstractCegarLoop]: Abstraction has 2174 states and 5499 transitions. [2022-01-17 23:29:54,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:54,448 INFO L276 IsEmpty]: Start isEmpty. Operand 2174 states and 5499 transitions. [2022-01-17 23:29:54,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:29:54,450 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:54,450 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:54,450 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2022-01-17 23:29:54,450 INFO L402 AbstractCegarLoop]: === Iteration 206 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:29:54,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:54,450 INFO L85 PathProgramCache]: Analyzing trace with hash -185798815, now seen corresponding path program 162 times [2022-01-17 23:29:54,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:54,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098345797] [2022-01-17 23:29:54,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:54,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:54,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:55,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:55,035 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:55,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098345797] [2022-01-17 23:29:55,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098345797] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:55,036 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:55,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-17 23:29:55,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279160547] [2022-01-17 23:29:55,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:55,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-17 23:29:55,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:55,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-17 23:29:55,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2022-01-17 23:29:55,036 INFO L87 Difference]: Start difference. First operand 2174 states and 5499 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:57,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:57,030 INFO L93 Difference]: Finished difference Result 2321 states and 5758 transitions. [2022-01-17 23:29:57,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:29:57,030 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:29:57,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:57,033 INFO L225 Difference]: With dead ends: 2321 [2022-01-17 23:29:57,033 INFO L226 Difference]: Without dead ends: 2208 [2022-01-17 23:29:57,033 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 441 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=500, Invalid=2256, Unknown=0, NotChecked=0, Total=2756 [2022-01-17 23:29:57,033 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 851 mSDsluCounter, 2168 mSDsCounter, 0 mSdLazyCounter, 1274 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 851 SdHoareTripleChecker+Valid, 2260 SdHoareTripleChecker+Invalid, 1351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 1274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:57,033 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [851 Valid, 2260 Invalid, 1351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 1274 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:29:57,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2208 states. [2022-01-17 23:29:57,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2208 to 2170. [2022-01-17 23:29:57,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2170 states, 2169 states have (on average 2.5297372060857537) internal successors, (5487), 2169 states have internal predecessors, (5487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:57,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2170 states to 2170 states and 5487 transitions. [2022-01-17 23:29:57,051 INFO L78 Accepts]: Start accepts. Automaton has 2170 states and 5487 transitions. Word has length 137 [2022-01-17 23:29:57,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:57,052 INFO L470 AbstractCegarLoop]: Abstraction has 2170 states and 5487 transitions. [2022-01-17 23:29:57,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:57,052 INFO L276 IsEmpty]: Start isEmpty. Operand 2170 states and 5487 transitions. [2022-01-17 23:29:57,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:29:57,054 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:57,054 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:57,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2022-01-17 23:29:57,054 INFO L402 AbstractCegarLoop]: === Iteration 207 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:29:57,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:57,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1298170883, now seen corresponding path program 163 times [2022-01-17 23:29:57,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:57,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067482096] [2022-01-17 23:29:57,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:57,054 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:57,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:57,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:57,720 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:57,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067482096] [2022-01-17 23:29:57,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067482096] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:57,720 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:57,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-17 23:29:57,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682835213] [2022-01-17 23:29:57,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:57,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-17 23:29:57,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:57,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-17 23:29:57,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=841, Unknown=0, NotChecked=0, Total=930 [2022-01-17 23:29:57,721 INFO L87 Difference]: Start difference. First operand 2170 states and 5487 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:59,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:59,571 INFO L93 Difference]: Finished difference Result 2342 states and 5799 transitions. [2022-01-17 23:29:59,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:29:59,571 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:29:59,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:59,574 INFO L225 Difference]: With dead ends: 2342 [2022-01-17 23:29:59,574 INFO L226 Difference]: Without dead ends: 2194 [2022-01-17 23:29:59,574 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 597 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=541, Invalid=2539, Unknown=0, NotChecked=0, Total=3080 [2022-01-17 23:29:59,574 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 992 mSDsluCounter, 2460 mSDsCounter, 0 mSdLazyCounter, 1489 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 992 SdHoareTripleChecker+Valid, 2518 SdHoareTripleChecker+Invalid, 1584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:59,580 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [992 Valid, 2518 Invalid, 1584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 1489 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:29:59,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2194 states. [2022-01-17 23:29:59,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2194 to 2164. [2022-01-17 23:29:59,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2164 states, 2163 states have (on average 2.5321312991215903) internal successors, (5477), 2163 states have internal predecessors, (5477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:59,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2164 states to 2164 states and 5477 transitions. [2022-01-17 23:29:59,601 INFO L78 Accepts]: Start accepts. Automaton has 2164 states and 5477 transitions. Word has length 137 [2022-01-17 23:29:59,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:59,601 INFO L470 AbstractCegarLoop]: Abstraction has 2164 states and 5477 transitions. [2022-01-17 23:29:59,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:59,601 INFO L276 IsEmpty]: Start isEmpty. Operand 2164 states and 5477 transitions. [2022-01-17 23:29:59,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:29:59,603 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:59,603 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:59,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2022-01-17 23:29:59,603 INFO L402 AbstractCegarLoop]: === Iteration 208 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:29:59,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:59,603 INFO L85 PathProgramCache]: Analyzing trace with hash 966056485, now seen corresponding path program 164 times [2022-01-17 23:29:59,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:59,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853626622] [2022-01-17 23:29:59,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:59,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:59,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:00,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:00,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:00,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853626622] [2022-01-17 23:30:00,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853626622] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:00,308 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:00,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:30:00,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153709644] [2022-01-17 23:30:00,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:00,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:30:00,308 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:00,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:30:00,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=730, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:30:00,309 INFO L87 Difference]: Start difference. First operand 2164 states and 5477 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:02,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:02,174 INFO L93 Difference]: Finished difference Result 2390 states and 5907 transitions. [2022-01-17 23:30:02,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:30:02,175 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:30:02,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:02,177 INFO L225 Difference]: With dead ends: 2390 [2022-01-17 23:30:02,177 INFO L226 Difference]: Without dead ends: 2241 [2022-01-17 23:30:02,178 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 557 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=524, Invalid=2446, Unknown=0, NotChecked=0, Total=2970 [2022-01-17 23:30:02,178 INFO L933 BasicCegarLoop]: 164 mSDtfsCounter, 963 mSDsluCounter, 2330 mSDsCounter, 0 mSdLazyCounter, 1302 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 963 SdHoareTripleChecker+Valid, 2416 SdHoareTripleChecker+Invalid, 1401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:02,178 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [963 Valid, 2416 Invalid, 1401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1302 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:30:02,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2241 states. [2022-01-17 23:30:02,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2241 to 2166. [2022-01-17 23:30:02,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2166 states, 2165 states have (on average 2.531177829099307) internal successors, (5480), 2165 states have internal predecessors, (5480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:02,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2166 states to 2166 states and 5480 transitions. [2022-01-17 23:30:02,196 INFO L78 Accepts]: Start accepts. Automaton has 2166 states and 5480 transitions. Word has length 137 [2022-01-17 23:30:02,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:02,196 INFO L470 AbstractCegarLoop]: Abstraction has 2166 states and 5480 transitions. [2022-01-17 23:30:02,196 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:02,196 INFO L276 IsEmpty]: Start isEmpty. Operand 2166 states and 5480 transitions. [2022-01-17 23:30:02,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:30:02,198 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:02,198 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:02,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2022-01-17 23:30:02,198 INFO L402 AbstractCegarLoop]: === Iteration 209 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:30:02,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:02,199 INFO L85 PathProgramCache]: Analyzing trace with hash 178409473, now seen corresponding path program 165 times [2022-01-17 23:30:02,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:02,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565226539] [2022-01-17 23:30:02,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:02,199 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:02,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:03,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:03,167 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:03,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565226539] [2022-01-17 23:30:03,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565226539] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:03,168 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:03,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-17 23:30:03,168 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052535215] [2022-01-17 23:30:03,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:03,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-17 23:30:03,168 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:03,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-17 23:30:03,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=1020, Unknown=0, NotChecked=0, Total=1122 [2022-01-17 23:30:03,168 INFO L87 Difference]: Start difference. First operand 2166 states and 5480 transitions. Second operand has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:06,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:06,230 INFO L93 Difference]: Finished difference Result 2320 states and 5757 transitions. [2022-01-17 23:30:06,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-17 23:30:06,230 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:30:06,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:06,233 INFO L225 Difference]: With dead ends: 2320 [2022-01-17 23:30:06,233 INFO L226 Difference]: Without dead ends: 2182 [2022-01-17 23:30:06,234 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 899 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=744, Invalid=3812, Unknown=0, NotChecked=0, Total=4556 [2022-01-17 23:30:06,234 INFO L933 BasicCegarLoop]: 159 mSDtfsCounter, 1303 mSDsluCounter, 2819 mSDsCounter, 0 mSdLazyCounter, 1707 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1303 SdHoareTripleChecker+Valid, 2868 SdHoareTripleChecker+Invalid, 1832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 1707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:06,234 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1303 Valid, 2868 Invalid, 1832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 1707 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-17 23:30:06,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2182 states. [2022-01-17 23:30:06,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2182 to 2164. [2022-01-17 23:30:06,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2164 states, 2163 states have (on average 2.53120665742025) internal successors, (5475), 2163 states have internal predecessors, (5475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:06,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2164 states to 2164 states and 5475 transitions. [2022-01-17 23:30:06,257 INFO L78 Accepts]: Start accepts. Automaton has 2164 states and 5475 transitions. Word has length 137 [2022-01-17 23:30:06,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:06,257 INFO L470 AbstractCegarLoop]: Abstraction has 2164 states and 5475 transitions. [2022-01-17 23:30:06,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:06,258 INFO L276 IsEmpty]: Start isEmpty. Operand 2164 states and 5475 transitions. [2022-01-17 23:30:06,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:30:06,260 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:06,260 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:06,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2022-01-17 23:30:06,260 INFO L402 AbstractCegarLoop]: === Iteration 210 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:30:06,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:06,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1325562943, now seen corresponding path program 166 times [2022-01-17 23:30:06,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:06,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342677526] [2022-01-17 23:30:06,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:06,261 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:06,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:06,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:06,965 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:06,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342677526] [2022-01-17 23:30:06,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342677526] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:06,965 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:06,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-17 23:30:06,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682936257] [2022-01-17 23:30:06,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:06,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-17 23:30:06,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:06,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-17 23:30:06,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2022-01-17 23:30:06,966 INFO L87 Difference]: Start difference. First operand 2164 states and 5475 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:08,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:08,347 INFO L93 Difference]: Finished difference Result 2332 states and 5775 transitions. [2022-01-17 23:30:08,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:30:08,347 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:30:08,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:08,350 INFO L225 Difference]: With dead ends: 2332 [2022-01-17 23:30:08,350 INFO L226 Difference]: Without dead ends: 2184 [2022-01-17 23:30:08,350 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=500, Invalid=2256, Unknown=0, NotChecked=0, Total=2756 [2022-01-17 23:30:08,350 INFO L933 BasicCegarLoop]: 162 mSDtfsCounter, 1128 mSDsluCounter, 1974 mSDsCounter, 0 mSdLazyCounter, 1176 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1128 SdHoareTripleChecker+Valid, 2066 SdHoareTripleChecker+Invalid, 1288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 1176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:08,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1128 Valid, 2066 Invalid, 1288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 1176 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:30:08,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2184 states. [2022-01-17 23:30:08,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2184 to 2160. [2022-01-17 23:30:08,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2160 states, 2159 states have (on average 2.5289485873089395) internal successors, (5460), 2159 states have internal predecessors, (5460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:08,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2160 states to 2160 states and 5460 transitions. [2022-01-17 23:30:08,369 INFO L78 Accepts]: Start accepts. Automaton has 2160 states and 5460 transitions. Word has length 137 [2022-01-17 23:30:08,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:08,369 INFO L470 AbstractCegarLoop]: Abstraction has 2160 states and 5460 transitions. [2022-01-17 23:30:08,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:08,369 INFO L276 IsEmpty]: Start isEmpty. Operand 2160 states and 5460 transitions. [2022-01-17 23:30:08,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:30:08,371 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:08,371 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:08,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2022-01-17 23:30:08,372 INFO L402 AbstractCegarLoop]: === Iteration 211 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:30:08,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:08,372 INFO L85 PathProgramCache]: Analyzing trace with hash 672009509, now seen corresponding path program 167 times [2022-01-17 23:30:08,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:08,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523433712] [2022-01-17 23:30:08,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:08,372 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:08,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:09,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:09,120 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:09,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523433712] [2022-01-17 23:30:09,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523433712] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:09,120 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:09,120 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-17 23:30:09,121 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440501893] [2022-01-17 23:30:09,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:09,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-17 23:30:09,121 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:09,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-17 23:30:09,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2022-01-17 23:30:09,121 INFO L87 Difference]: Start difference. First operand 2160 states and 5460 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:11,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:11,100 INFO L93 Difference]: Finished difference Result 2283 states and 5673 transitions. [2022-01-17 23:30:11,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:30:11,100 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:30:11,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:11,103 INFO L225 Difference]: With dead ends: 2283 [2022-01-17 23:30:11,103 INFO L226 Difference]: Without dead ends: 2172 [2022-01-17 23:30:11,103 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=500, Invalid=2256, Unknown=0, NotChecked=0, Total=2756 [2022-01-17 23:30:11,103 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 1015 mSDsluCounter, 2062 mSDsCounter, 0 mSdLazyCounter, 1158 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1015 SdHoareTripleChecker+Valid, 2168 SdHoareTripleChecker+Invalid, 1258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:11,103 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1015 Valid, 2168 Invalid, 1258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1158 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:30:11,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2172 states. [2022-01-17 23:30:11,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2172 to 2156. [2022-01-17 23:30:11,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2156 states, 2155 states have (on average 2.5303944315545244) internal successors, (5453), 2155 states have internal predecessors, (5453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:11,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2156 states to 2156 states and 5453 transitions. [2022-01-17 23:30:11,121 INFO L78 Accepts]: Start accepts. Automaton has 2156 states and 5453 transitions. Word has length 137 [2022-01-17 23:30:11,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:11,121 INFO L470 AbstractCegarLoop]: Abstraction has 2156 states and 5453 transitions. [2022-01-17 23:30:11,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:11,121 INFO L276 IsEmpty]: Start isEmpty. Operand 2156 states and 5453 transitions. [2022-01-17 23:30:11,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:30:11,123 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:11,123 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:11,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2022-01-17 23:30:11,123 INFO L402 AbstractCegarLoop]: === Iteration 212 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:30:11,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:11,123 INFO L85 PathProgramCache]: Analyzing trace with hash 592996901, now seen corresponding path program 168 times [2022-01-17 23:30:11,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:11,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043350576] [2022-01-17 23:30:11,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:11,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:11,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:11,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:11,903 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:11,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043350576] [2022-01-17 23:30:11,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043350576] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:11,903 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:11,903 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-17 23:30:11,903 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074967304] [2022-01-17 23:30:11,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:11,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-17 23:30:11,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:11,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-17 23:30:11,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=836, Unknown=0, NotChecked=0, Total=930 [2022-01-17 23:30:11,904 INFO L87 Difference]: Start difference. First operand 2156 states and 5453 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:13,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:13,844 INFO L93 Difference]: Finished difference Result 2364 states and 5852 transitions. [2022-01-17 23:30:13,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-17 23:30:13,845 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:30:13,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:13,847 INFO L225 Difference]: With dead ends: 2364 [2022-01-17 23:30:13,847 INFO L226 Difference]: Without dead ends: 2215 [2022-01-17 23:30:13,848 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 646 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=568, Invalid=2738, Unknown=0, NotChecked=0, Total=3306 [2022-01-17 23:30:13,848 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 1267 mSDsluCounter, 2556 mSDsCounter, 0 mSdLazyCounter, 1414 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1267 SdHoareTripleChecker+Valid, 2662 SdHoareTripleChecker+Invalid, 1553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 1414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:13,848 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1267 Valid, 2662 Invalid, 1553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 1414 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:30:13,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2215 states. [2022-01-17 23:30:13,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2215 to 2156. [2022-01-17 23:30:13,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2156 states, 2155 states have (on average 2.528074245939675) internal successors, (5448), 2155 states have internal predecessors, (5448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:13,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2156 states to 2156 states and 5448 transitions. [2022-01-17 23:30:13,866 INFO L78 Accepts]: Start accepts. Automaton has 2156 states and 5448 transitions. Word has length 137 [2022-01-17 23:30:13,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:13,867 INFO L470 AbstractCegarLoop]: Abstraction has 2156 states and 5448 transitions. [2022-01-17 23:30:13,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:13,867 INFO L276 IsEmpty]: Start isEmpty. Operand 2156 states and 5448 transitions. [2022-01-17 23:30:13,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:30:13,869 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:13,869 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:13,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2022-01-17 23:30:13,869 INFO L402 AbstractCegarLoop]: === Iteration 213 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:30:13,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:13,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1650021179, now seen corresponding path program 169 times [2022-01-17 23:30:13,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:13,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229841032] [2022-01-17 23:30:13,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:13,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:13,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:14,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:14,542 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:14,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229841032] [2022-01-17 23:30:14,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229841032] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:14,542 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:14,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-17 23:30:14,542 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118685557] [2022-01-17 23:30:14,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:14,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-17 23:30:14,542 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:14,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-17 23:30:14,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1009, Unknown=0, NotChecked=0, Total=1122 [2022-01-17 23:30:14,543 INFO L87 Difference]: Start difference. First operand 2156 states and 5448 transitions. Second operand has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:16,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:16,847 INFO L93 Difference]: Finished difference Result 2578 states and 6418 transitions. [2022-01-17 23:30:16,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-17 23:30:16,847 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:30:16,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:16,850 INFO L225 Difference]: With dead ends: 2578 [2022-01-17 23:30:16,850 INFO L226 Difference]: Without dead ends: 2444 [2022-01-17 23:30:16,851 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 825 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=665, Invalid=3367, Unknown=0, NotChecked=0, Total=4032 [2022-01-17 23:30:16,851 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 1422 mSDsluCounter, 3181 mSDsCounter, 0 mSdLazyCounter, 1661 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1422 SdHoareTripleChecker+Valid, 3280 SdHoareTripleChecker+Invalid, 1827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 1661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:16,851 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1422 Valid, 3280 Invalid, 1827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 1661 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:30:16,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2444 states. [2022-01-17 23:30:16,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2444 to 2352. [2022-01-17 23:30:16,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2352 states, 2351 states have (on average 2.52573373032752) internal successors, (5938), 2351 states have internal predecessors, (5938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:16,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2352 states to 2352 states and 5938 transitions. [2022-01-17 23:30:16,871 INFO L78 Accepts]: Start accepts. Automaton has 2352 states and 5938 transitions. Word has length 137 [2022-01-17 23:30:16,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:16,871 INFO L470 AbstractCegarLoop]: Abstraction has 2352 states and 5938 transitions. [2022-01-17 23:30:16,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:16,871 INFO L276 IsEmpty]: Start isEmpty. Operand 2352 states and 5938 transitions. [2022-01-17 23:30:16,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:30:16,873 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:16,873 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:16,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2022-01-17 23:30:16,873 INFO L402 AbstractCegarLoop]: === Iteration 214 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:30:16,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:16,873 INFO L85 PathProgramCache]: Analyzing trace with hash -74773765, now seen corresponding path program 170 times [2022-01-17 23:30:16,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:16,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291545250] [2022-01-17 23:30:16,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:16,874 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:16,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:17,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:17,747 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:17,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291545250] [2022-01-17 23:30:17,747 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291545250] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:17,747 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:17,747 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-17 23:30:17,747 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427407299] [2022-01-17 23:30:17,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:17,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-17 23:30:17,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:17,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-17 23:30:17,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=835, Unknown=0, NotChecked=0, Total=930 [2022-01-17 23:30:17,748 INFO L87 Difference]: Start difference. First operand 2352 states and 5938 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:19,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:19,828 INFO L93 Difference]: Finished difference Result 2842 states and 7008 transitions. [2022-01-17 23:30:19,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-17 23:30:19,829 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:30:19,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:19,831 INFO L225 Difference]: With dead ends: 2842 [2022-01-17 23:30:19,831 INFO L226 Difference]: Without dead ends: 2189 [2022-01-17 23:30:19,831 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 732 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=643, Invalid=3139, Unknown=0, NotChecked=0, Total=3782 [2022-01-17 23:30:19,831 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 1360 mSDsluCounter, 3052 mSDsCounter, 0 mSdLazyCounter, 1423 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1360 SdHoareTripleChecker+Valid, 3185 SdHoareTripleChecker+Invalid, 1588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 1423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:19,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1360 Valid, 3185 Invalid, 1588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 1423 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:30:19,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2189 states. [2022-01-17 23:30:19,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2189 to 2086. [2022-01-17 23:30:19,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2086 states, 2085 states have (on average 2.51462829736211) internal successors, (5243), 2085 states have internal predecessors, (5243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:19,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2086 states to 2086 states and 5243 transitions. [2022-01-17 23:30:19,850 INFO L78 Accepts]: Start accepts. Automaton has 2086 states and 5243 transitions. Word has length 137 [2022-01-17 23:30:19,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:19,850 INFO L470 AbstractCegarLoop]: Abstraction has 2086 states and 5243 transitions. [2022-01-17 23:30:19,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:19,850 INFO L276 IsEmpty]: Start isEmpty. Operand 2086 states and 5243 transitions. [2022-01-17 23:30:19,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:30:19,853 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:19,853 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:19,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2022-01-17 23:30:19,853 INFO L402 AbstractCegarLoop]: === Iteration 215 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:30:19,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:19,854 INFO L85 PathProgramCache]: Analyzing trace with hash -625112829, now seen corresponding path program 171 times [2022-01-17 23:30:19,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:19,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916746888] [2022-01-17 23:30:19,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:19,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:19,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:20,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:20,416 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:20,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916746888] [2022-01-17 23:30:20,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916746888] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:20,416 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:20,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:30:20,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028534693] [2022-01-17 23:30:20,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:20,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:30:20,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:20,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:30:20,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=726, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:30:20,417 INFO L87 Difference]: Start difference. First operand 2086 states and 5243 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:22,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:22,118 INFO L93 Difference]: Finished difference Result 2283 states and 5615 transitions. [2022-01-17 23:30:22,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-17 23:30:22,118 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:30:22,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:22,121 INFO L225 Difference]: With dead ends: 2283 [2022-01-17 23:30:22,121 INFO L226 Difference]: Without dead ends: 2134 [2022-01-17 23:30:22,121 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 601 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=574, Invalid=2618, Unknown=0, NotChecked=0, Total=3192 [2022-01-17 23:30:22,121 INFO L933 BasicCegarLoop]: 173 mSDtfsCounter, 1111 mSDsluCounter, 2340 mSDsCounter, 0 mSdLazyCounter, 1252 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1111 SdHoareTripleChecker+Valid, 2435 SdHoareTripleChecker+Invalid, 1361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 1252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:22,121 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1111 Valid, 2435 Invalid, 1361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 1252 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:30:22,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2134 states. [2022-01-17 23:30:22,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2134 to 2071. [2022-01-17 23:30:22,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2071 states, 2070 states have (on average 2.5159420289855072) internal successors, (5208), 2070 states have internal predecessors, (5208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:22,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2071 states to 2071 states and 5208 transitions. [2022-01-17 23:30:22,138 INFO L78 Accepts]: Start accepts. Automaton has 2071 states and 5208 transitions. Word has length 137 [2022-01-17 23:30:22,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:22,138 INFO L470 AbstractCegarLoop]: Abstraction has 2071 states and 5208 transitions. [2022-01-17 23:30:22,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:22,139 INFO L276 IsEmpty]: Start isEmpty. Operand 2071 states and 5208 transitions. [2022-01-17 23:30:22,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:30:22,140 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:22,140 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:22,140 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2022-01-17 23:30:22,141 INFO L402 AbstractCegarLoop]: === Iteration 216 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:30:22,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:22,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1795602559, now seen corresponding path program 172 times [2022-01-17 23:30:22,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:22,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874165415] [2022-01-17 23:30:22,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:22,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:22,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:22,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:22,675 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:22,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874165415] [2022-01-17 23:30:22,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874165415] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:22,675 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:22,675 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:30:22,675 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335185025] [2022-01-17 23:30:22,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:22,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:30:22,676 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:22,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:30:22,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=729, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:30:22,676 INFO L87 Difference]: Start difference. First operand 2071 states and 5208 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:24,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:24,425 INFO L93 Difference]: Finished difference Result 2211 states and 5462 transitions. [2022-01-17 23:30:24,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-17 23:30:24,426 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:30:24,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:24,428 INFO L225 Difference]: With dead ends: 2211 [2022-01-17 23:30:24,428 INFO L226 Difference]: Without dead ends: 2073 [2022-01-17 23:30:24,429 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 574 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=560, Invalid=2520, Unknown=0, NotChecked=0, Total=3080 [2022-01-17 23:30:24,429 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 1108 mSDsluCounter, 2612 mSDsCounter, 0 mSdLazyCounter, 1386 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1108 SdHoareTripleChecker+Valid, 2706 SdHoareTripleChecker+Invalid, 1494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:24,429 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1108 Valid, 2706 Invalid, 1494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1386 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:30:24,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2073 states. [2022-01-17 23:30:24,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2073 to 2069. [2022-01-17 23:30:24,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2069 states, 2068 states have (on average 2.516441005802708) internal successors, (5204), 2068 states have internal predecessors, (5204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:24,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2069 states to 2069 states and 5204 transitions. [2022-01-17 23:30:24,446 INFO L78 Accepts]: Start accepts. Automaton has 2069 states and 5204 transitions. Word has length 137 [2022-01-17 23:30:24,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:24,446 INFO L470 AbstractCegarLoop]: Abstraction has 2069 states and 5204 transitions. [2022-01-17 23:30:24,446 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:24,446 INFO L276 IsEmpty]: Start isEmpty. Operand 2069 states and 5204 transitions. [2022-01-17 23:30:24,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:30:24,448 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:24,448 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:24,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2022-01-17 23:30:24,448 INFO L402 AbstractCegarLoop]: === Iteration 217 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:30:24,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:24,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1025624163, now seen corresponding path program 173 times [2022-01-17 23:30:24,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:24,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875811071] [2022-01-17 23:30:24,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:24,449 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:24,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:25,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:25,127 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:25,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875811071] [2022-01-17 23:30:25,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875811071] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:25,127 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:25,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2022-01-17 23:30:25,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361054749] [2022-01-17 23:30:25,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:25,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-01-17 23:30:25,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:25,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-01-17 23:30:25,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=960, Unknown=0, NotChecked=0, Total=1056 [2022-01-17 23:30:25,128 INFO L87 Difference]: Start difference. First operand 2069 states and 5204 transitions. Second operand has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:26,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:26,864 INFO L93 Difference]: Finished difference Result 2507 states and 6205 transitions. [2022-01-17 23:30:26,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-17 23:30:26,864 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:30:26,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:26,867 INFO L225 Difference]: With dead ends: 2507 [2022-01-17 23:30:26,867 INFO L226 Difference]: Without dead ends: 2373 [2022-01-17 23:30:26,867 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 688 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=630, Invalid=3152, Unknown=0, NotChecked=0, Total=3782 [2022-01-17 23:30:26,867 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 1402 mSDsluCounter, 3071 mSDsCounter, 0 mSdLazyCounter, 1553 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1402 SdHoareTripleChecker+Valid, 3183 SdHoareTripleChecker+Invalid, 1706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 1553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:26,867 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1402 Valid, 3183 Invalid, 1706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 1553 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:30:26,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2373 states. [2022-01-17 23:30:26,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2373 to 2279. [2022-01-17 23:30:26,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2279 states, 2278 states have (on average 2.5118525021949076) internal successors, (5722), 2278 states have internal predecessors, (5722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:26,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2279 states to 2279 states and 5722 transitions. [2022-01-17 23:30:26,886 INFO L78 Accepts]: Start accepts. Automaton has 2279 states and 5722 transitions. Word has length 137 [2022-01-17 23:30:26,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:26,886 INFO L470 AbstractCegarLoop]: Abstraction has 2279 states and 5722 transitions. [2022-01-17 23:30:26,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:26,887 INFO L276 IsEmpty]: Start isEmpty. Operand 2279 states and 5722 transitions. [2022-01-17 23:30:26,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:30:26,889 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:26,889 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:26,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2022-01-17 23:30:26,889 INFO L402 AbstractCegarLoop]: === Iteration 218 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:30:26,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:26,889 INFO L85 PathProgramCache]: Analyzing trace with hash 366386753, now seen corresponding path program 174 times [2022-01-17 23:30:26,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:26,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869796651] [2022-01-17 23:30:26,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:26,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:26,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:27,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:27,647 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:27,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869796651] [2022-01-17 23:30:27,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869796651] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:27,647 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:27,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2022-01-17 23:30:27,647 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064025877] [2022-01-17 23:30:27,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:27,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-01-17 23:30:27,647 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:27,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-01-17 23:30:27,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=890, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:30:27,648 INFO L87 Difference]: Start difference. First operand 2279 states and 5722 transitions. Second operand has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:29,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:29,633 INFO L93 Difference]: Finished difference Result 2771 states and 6795 transitions. [2022-01-17 23:30:29,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-17 23:30:29,633 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:30:29,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:29,635 INFO L225 Difference]: With dead ends: 2771 [2022-01-17 23:30:29,636 INFO L226 Difference]: Without dead ends: 2188 [2022-01-17 23:30:29,636 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 990 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=817, Invalid=3875, Unknown=0, NotChecked=0, Total=4692 [2022-01-17 23:30:29,636 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 1525 mSDsluCounter, 2784 mSDsCounter, 0 mSdLazyCounter, 1347 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1525 SdHoareTripleChecker+Valid, 2933 SdHoareTripleChecker+Invalid, 1525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 1347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:29,636 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1525 Valid, 2933 Invalid, 1525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 1347 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:30:29,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2188 states. [2022-01-17 23:30:29,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2188 to 2083. [2022-01-17 23:30:29,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2083 states, 2082 states have (on average 2.506243996157541) internal successors, (5218), 2082 states have internal predecessors, (5218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:29,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2083 states to 2083 states and 5218 transitions. [2022-01-17 23:30:29,655 INFO L78 Accepts]: Start accepts. Automaton has 2083 states and 5218 transitions. Word has length 137 [2022-01-17 23:30:29,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:29,655 INFO L470 AbstractCegarLoop]: Abstraction has 2083 states and 5218 transitions. [2022-01-17 23:30:29,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:29,655 INFO L276 IsEmpty]: Start isEmpty. Operand 2083 states and 5218 transitions. [2022-01-17 23:30:29,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:30:29,657 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:29,657 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:29,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2022-01-17 23:30:29,657 INFO L402 AbstractCegarLoop]: === Iteration 219 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:30:29,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:29,657 INFO L85 PathProgramCache]: Analyzing trace with hash -787823361, now seen corresponding path program 175 times [2022-01-17 23:30:29,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:29,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373662963] [2022-01-17 23:30:29,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:29,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:29,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:30,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:30,387 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:30,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373662963] [2022-01-17 23:30:30,387 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373662963] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:30,387 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:30,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-17 23:30:30,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650523619] [2022-01-17 23:30:30,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:30,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-17 23:30:30,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:30,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-17 23:30:30,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1008, Unknown=0, NotChecked=0, Total=1122 [2022-01-17 23:30:30,388 INFO L87 Difference]: Start difference. First operand 2083 states and 5218 transitions. Second operand has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:32,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:32,824 INFO L93 Difference]: Finished difference Result 2219 states and 5466 transitions. [2022-01-17 23:30:32,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-17 23:30:32,824 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:30:32,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:32,826 INFO L225 Difference]: With dead ends: 2219 [2022-01-17 23:30:32,826 INFO L226 Difference]: Without dead ends: 2055 [2022-01-17 23:30:32,827 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 888 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=722, Invalid=3568, Unknown=0, NotChecked=0, Total=4290 [2022-01-17 23:30:32,827 INFO L933 BasicCegarLoop]: 177 mSDtfsCounter, 1124 mSDsluCounter, 3042 mSDsCounter, 0 mSdLazyCounter, 1649 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1124 SdHoareTripleChecker+Valid, 3132 SdHoareTripleChecker+Invalid, 1767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 1649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:32,827 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1124 Valid, 3132 Invalid, 1767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 1649 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:30:32,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2055 states. [2022-01-17 23:30:32,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2055 to 2055. [2022-01-17 23:30:32,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2055 states, 2054 states have (on average 2.5136319376825704) internal successors, (5163), 2054 states have internal predecessors, (5163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:32,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2055 states to 2055 states and 5163 transitions. [2022-01-17 23:30:32,844 INFO L78 Accepts]: Start accepts. Automaton has 2055 states and 5163 transitions. Word has length 137 [2022-01-17 23:30:32,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:32,844 INFO L470 AbstractCegarLoop]: Abstraction has 2055 states and 5163 transitions. [2022-01-17 23:30:32,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:32,844 INFO L276 IsEmpty]: Start isEmpty. Operand 2055 states and 5163 transitions. [2022-01-17 23:30:32,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:30:32,846 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:32,846 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:32,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2022-01-17 23:30:32,846 INFO L402 AbstractCegarLoop]: === Iteration 220 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:30:32,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:32,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1877232731, now seen corresponding path program 176 times [2022-01-17 23:30:32,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:32,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974047692] [2022-01-17 23:30:32,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:32,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:32,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:33,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:33,600 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:33,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974047692] [2022-01-17 23:30:33,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974047692] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:33,600 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:33,600 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-17 23:30:33,600 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78010750] [2022-01-17 23:30:33,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:33,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-17 23:30:33,600 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:33,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-17 23:30:33,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1008, Unknown=0, NotChecked=0, Total=1122 [2022-01-17 23:30:33,600 INFO L87 Difference]: Start difference. First operand 2055 states and 5163 transitions. Second operand has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:35,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:35,575 INFO L93 Difference]: Finished difference Result 2621 states and 6428 transitions. [2022-01-17 23:30:35,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-17 23:30:35,575 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:30:35,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:35,578 INFO L225 Difference]: With dead ends: 2621 [2022-01-17 23:30:35,578 INFO L226 Difference]: Without dead ends: 2487 [2022-01-17 23:30:35,578 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 914 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=747, Invalid=3675, Unknown=0, NotChecked=0, Total=4422 [2022-01-17 23:30:35,579 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 1309 mSDsluCounter, 2748 mSDsCounter, 0 mSdLazyCounter, 1539 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1309 SdHoareTripleChecker+Valid, 2862 SdHoareTripleChecker+Invalid, 1697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 1539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:35,579 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1309 Valid, 2862 Invalid, 1697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 1539 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:30:35,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2487 states. [2022-01-17 23:30:35,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2487 to 2321. [2022-01-17 23:30:35,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2321 states, 2320 states have (on average 2.50301724137931) internal successors, (5807), 2320 states have internal predecessors, (5807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:35,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2321 states to 2321 states and 5807 transitions. [2022-01-17 23:30:35,598 INFO L78 Accepts]: Start accepts. Automaton has 2321 states and 5807 transitions. Word has length 137 [2022-01-17 23:30:35,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:35,599 INFO L470 AbstractCegarLoop]: Abstraction has 2321 states and 5807 transitions. [2022-01-17 23:30:35,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:35,599 INFO L276 IsEmpty]: Start isEmpty. Operand 2321 states and 5807 transitions. [2022-01-17 23:30:35,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:30:35,601 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:35,601 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:35,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2022-01-17 23:30:35,601 INFO L402 AbstractCegarLoop]: === Iteration 221 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:30:35,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:35,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1025723649, now seen corresponding path program 177 times [2022-01-17 23:30:35,601 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:35,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032020220] [2022-01-17 23:30:35,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:35,601 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:35,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:36,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:36,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:36,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032020220] [2022-01-17 23:30:36,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032020220] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:36,285 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:36,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-17 23:30:36,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171207648] [2022-01-17 23:30:36,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:36,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-17 23:30:36,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:36,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-17 23:30:36,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1008, Unknown=0, NotChecked=0, Total=1122 [2022-01-17 23:30:36,285 INFO L87 Difference]: Start difference. First operand 2321 states and 5807 transitions. Second operand has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:38,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:38,268 INFO L93 Difference]: Finished difference Result 2885 states and 7018 transitions. [2022-01-17 23:30:38,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-17 23:30:38,268 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:30:38,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:38,270 INFO L225 Difference]: With dead ends: 2885 [2022-01-17 23:30:38,270 INFO L226 Difference]: Without dead ends: 2302 [2022-01-17 23:30:38,270 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 950 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=774, Invalid=3782, Unknown=0, NotChecked=0, Total=4556 [2022-01-17 23:30:38,271 INFO L933 BasicCegarLoop]: 220 mSDtfsCounter, 1585 mSDsluCounter, 3153 mSDsCounter, 0 mSdLazyCounter, 1454 mSolverCounterSat, 188 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1585 SdHoareTripleChecker+Valid, 3297 SdHoareTripleChecker+Invalid, 1642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 188 IncrementalHoareTripleChecker+Valid, 1454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:38,271 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1585 Valid, 3297 Invalid, 1642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [188 Valid, 1454 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:30:38,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2302 states. [2022-01-17 23:30:38,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2302 to 2125. [2022-01-17 23:30:38,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2125 states, 2124 states have (on average 2.4967043314500943) internal successors, (5303), 2124 states have internal predecessors, (5303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:38,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2125 states to 2125 states and 5303 transitions. [2022-01-17 23:30:38,288 INFO L78 Accepts]: Start accepts. Automaton has 2125 states and 5303 transitions. Word has length 137 [2022-01-17 23:30:38,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:38,288 INFO L470 AbstractCegarLoop]: Abstraction has 2125 states and 5303 transitions. [2022-01-17 23:30:38,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:38,289 INFO L276 IsEmpty]: Start isEmpty. Operand 2125 states and 5303 transitions. [2022-01-17 23:30:38,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:30:38,290 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:38,291 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:38,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2022-01-17 23:30:38,291 INFO L402 AbstractCegarLoop]: === Iteration 222 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:30:38,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:38,291 INFO L85 PathProgramCache]: Analyzing trace with hash 2115033533, now seen corresponding path program 178 times [2022-01-17 23:30:38,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:38,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262656556] [2022-01-17 23:30:38,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:38,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:38,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:38,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:38,904 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:38,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262656556] [2022-01-17 23:30:38,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262656556] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:38,904 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:38,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-17 23:30:38,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345566169] [2022-01-17 23:30:38,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:38,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-17 23:30:38,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:38,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-17 23:30:38,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=835, Unknown=0, NotChecked=0, Total=930 [2022-01-17 23:30:38,905 INFO L87 Difference]: Start difference. First operand 2125 states and 5303 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:40,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:40,732 INFO L93 Difference]: Finished difference Result 2337 states and 5695 transitions. [2022-01-17 23:30:40,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:30:40,732 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:30:40,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:40,735 INFO L225 Difference]: With dead ends: 2337 [2022-01-17 23:30:40,735 INFO L226 Difference]: Without dead ends: 2187 [2022-01-17 23:30:40,735 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 590 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=566, Invalid=2626, Unknown=0, NotChecked=0, Total=3192 [2022-01-17 23:30:40,735 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 977 mSDsluCounter, 2272 mSDsCounter, 0 mSdLazyCounter, 1250 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 977 SdHoareTripleChecker+Valid, 2385 SdHoareTripleChecker+Invalid, 1354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 1250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:40,735 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [977 Valid, 2385 Invalid, 1354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 1250 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:30:40,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2187 states. [2022-01-17 23:30:40,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2187 to 2111. [2022-01-17 23:30:40,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2111 states, 2110 states have (on average 2.5) internal successors, (5275), 2110 states have internal predecessors, (5275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:40,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2111 states to 2111 states and 5275 transitions. [2022-01-17 23:30:40,753 INFO L78 Accepts]: Start accepts. Automaton has 2111 states and 5275 transitions. Word has length 137 [2022-01-17 23:30:40,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:40,753 INFO L470 AbstractCegarLoop]: Abstraction has 2111 states and 5275 transitions. [2022-01-17 23:30:40,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:40,753 INFO L276 IsEmpty]: Start isEmpty. Operand 2111 states and 5275 transitions. [2022-01-17 23:30:40,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:30:40,755 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:40,755 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:40,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2022-01-17 23:30:40,755 INFO L402 AbstractCegarLoop]: === Iteration 223 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:30:40,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:40,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1403837929, now seen corresponding path program 179 times [2022-01-17 23:30:40,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:40,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558947931] [2022-01-17 23:30:40,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:40,755 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:40,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:41,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:41,564 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:41,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558947931] [2022-01-17 23:30:41,564 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558947931] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:41,564 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:41,564 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-17 23:30:41,564 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19970934] [2022-01-17 23:30:41,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:41,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-17 23:30:41,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:41,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-17 23:30:41,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=835, Unknown=0, NotChecked=0, Total=930 [2022-01-17 23:30:41,565 INFO L87 Difference]: Start difference. First operand 2111 states and 5275 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:43,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:43,366 INFO L93 Difference]: Finished difference Result 2319 states and 5661 transitions. [2022-01-17 23:30:43,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:30:43,367 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:30:43,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:43,369 INFO L225 Difference]: With dead ends: 2319 [2022-01-17 23:30:43,369 INFO L226 Difference]: Without dead ends: 2093 [2022-01-17 23:30:43,370 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 566 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=546, Invalid=2534, Unknown=0, NotChecked=0, Total=3080 [2022-01-17 23:30:43,370 INFO L933 BasicCegarLoop]: 170 mSDtfsCounter, 1148 mSDsluCounter, 2405 mSDsCounter, 0 mSdLazyCounter, 1415 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1148 SdHoareTripleChecker+Valid, 2505 SdHoareTripleChecker+Invalid, 1537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 1415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:43,371 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1148 Valid, 2505 Invalid, 1537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 1415 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:30:43,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2093 states. [2022-01-17 23:30:43,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2093 to 2029. [2022-01-17 23:30:43,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2029 states, 2028 states have (on average 2.500493096646943) internal successors, (5071), 2028 states have internal predecessors, (5071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:43,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2029 states to 2029 states and 5071 transitions. [2022-01-17 23:30:43,389 INFO L78 Accepts]: Start accepts. Automaton has 2029 states and 5071 transitions. Word has length 137 [2022-01-17 23:30:43,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:43,390 INFO L470 AbstractCegarLoop]: Abstraction has 2029 states and 5071 transitions. [2022-01-17 23:30:43,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:43,390 INFO L276 IsEmpty]: Start isEmpty. Operand 2029 states and 5071 transitions. [2022-01-17 23:30:43,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:30:43,392 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:43,392 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:43,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2022-01-17 23:30:43,392 INFO L402 AbstractCegarLoop]: === Iteration 224 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:30:43,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:43,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1327752357, now seen corresponding path program 180 times [2022-01-17 23:30:43,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:43,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55775046] [2022-01-17 23:30:43,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:43,392 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:43,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:43,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:43,993 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:43,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55775046] [2022-01-17 23:30:43,993 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55775046] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:43,994 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:43,994 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:30:43,994 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208452406] [2022-01-17 23:30:43,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:43,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:30:43,994 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:43,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:30:43,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=729, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:30:43,994 INFO L87 Difference]: Start difference. First operand 2029 states and 5071 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:45,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:45,459 INFO L93 Difference]: Finished difference Result 2194 states and 5373 transitions. [2022-01-17 23:30:45,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:30:45,459 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:30:45,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:45,462 INFO L225 Difference]: With dead ends: 2194 [2022-01-17 23:30:45,462 INFO L226 Difference]: Without dead ends: 2085 [2022-01-17 23:30:45,462 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 528 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=515, Invalid=2347, Unknown=0, NotChecked=0, Total=2862 [2022-01-17 23:30:45,462 INFO L933 BasicCegarLoop]: 167 mSDtfsCounter, 987 mSDsluCounter, 2374 mSDsCounter, 0 mSdLazyCounter, 1287 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 987 SdHoareTripleChecker+Valid, 2485 SdHoareTripleChecker+Invalid, 1385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:45,462 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [987 Valid, 2485 Invalid, 1385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 1287 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:30:45,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2085 states. [2022-01-17 23:30:45,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2085 to 2069. [2022-01-17 23:30:45,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2069 states, 2068 states have (on average 2.4893617021276597) internal successors, (5148), 2068 states have internal predecessors, (5148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:45,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2069 states to 2069 states and 5148 transitions. [2022-01-17 23:30:45,480 INFO L78 Accepts]: Start accepts. Automaton has 2069 states and 5148 transitions. Word has length 137 [2022-01-17 23:30:45,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:45,480 INFO L470 AbstractCegarLoop]: Abstraction has 2069 states and 5148 transitions. [2022-01-17 23:30:45,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:45,481 INFO L276 IsEmpty]: Start isEmpty. Operand 2069 states and 5148 transitions. [2022-01-17 23:30:45,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:30:45,482 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:45,483 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:45,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2022-01-17 23:30:45,483 INFO L402 AbstractCegarLoop]: === Iteration 225 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:30:45,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:45,483 INFO L85 PathProgramCache]: Analyzing trace with hash 872735973, now seen corresponding path program 181 times [2022-01-17 23:30:45,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:45,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481117625] [2022-01-17 23:30:45,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:45,483 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:45,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:46,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:46,115 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:46,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481117625] [2022-01-17 23:30:46,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481117625] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:46,115 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:46,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:30:46,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105449229] [2022-01-17 23:30:46,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:46,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:30:46,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:46,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:30:46,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=728, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:30:46,116 INFO L87 Difference]: Start difference. First operand 2069 states and 5148 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:48,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:48,123 INFO L93 Difference]: Finished difference Result 2200 states and 5385 transitions. [2022-01-17 23:30:48,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-17 23:30:48,124 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:30:48,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:48,126 INFO L225 Difference]: With dead ends: 2200 [2022-01-17 23:30:48,126 INFO L226 Difference]: Without dead ends: 2099 [2022-01-17 23:30:48,126 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 572 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=557, Invalid=2523, Unknown=0, NotChecked=0, Total=3080 [2022-01-17 23:30:48,127 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 1017 mSDsluCounter, 2190 mSDsCounter, 0 mSdLazyCounter, 1117 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1017 SdHoareTripleChecker+Valid, 2319 SdHoareTripleChecker+Invalid, 1217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:48,127 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1017 Valid, 2319 Invalid, 1217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1117 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:30:48,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2099 states. [2022-01-17 23:30:48,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2099 to 2083. [2022-01-17 23:30:48,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2083 states, 2082 states have (on average 2.4855907780979827) internal successors, (5175), 2082 states have internal predecessors, (5175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:48,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2083 states to 2083 states and 5175 transitions. [2022-01-17 23:30:48,144 INFO L78 Accepts]: Start accepts. Automaton has 2083 states and 5175 transitions. Word has length 137 [2022-01-17 23:30:48,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:48,144 INFO L470 AbstractCegarLoop]: Abstraction has 2083 states and 5175 transitions. [2022-01-17 23:30:48,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:48,144 INFO L276 IsEmpty]: Start isEmpty. Operand 2083 states and 5175 transitions. [2022-01-17 23:30:48,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:30:48,146 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:48,146 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:48,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2022-01-17 23:30:48,146 INFO L402 AbstractCegarLoop]: === Iteration 226 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:30:48,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:48,146 INFO L85 PathProgramCache]: Analyzing trace with hash -2088492955, now seen corresponding path program 182 times [2022-01-17 23:30:48,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:48,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669787746] [2022-01-17 23:30:48,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:48,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:48,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:48,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:48,737 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:48,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669787746] [2022-01-17 23:30:48,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669787746] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:48,737 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:48,737 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:30:48,737 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416567774] [2022-01-17 23:30:48,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:48,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:30:48,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:48,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:30:48,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=726, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:30:48,738 INFO L87 Difference]: Start difference. First operand 2083 states and 5175 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:50,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:50,849 INFO L93 Difference]: Finished difference Result 2426 states and 5979 transitions. [2022-01-17 23:30:50,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:30:50,849 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:30:50,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:50,852 INFO L225 Difference]: With dead ends: 2426 [2022-01-17 23:30:50,853 INFO L226 Difference]: Without dead ends: 2327 [2022-01-17 23:30:50,853 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 550 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=527, Invalid=2443, Unknown=0, NotChecked=0, Total=2970 [2022-01-17 23:30:50,853 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 1072 mSDsluCounter, 2358 mSDsCounter, 0 mSdLazyCounter, 1170 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1072 SdHoareTripleChecker+Valid, 2502 SdHoareTripleChecker+Invalid, 1282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 1170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:50,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1072 Valid, 2502 Invalid, 1282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 1170 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:30:50,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2327 states. [2022-01-17 23:30:50,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2327 to 2279. [2022-01-17 23:30:50,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2279 states, 2278 states have (on average 2.486830553116769) internal successors, (5665), 2278 states have internal predecessors, (5665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:50,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2279 states to 2279 states and 5665 transitions. [2022-01-17 23:30:50,873 INFO L78 Accepts]: Start accepts. Automaton has 2279 states and 5665 transitions. Word has length 137 [2022-01-17 23:30:50,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:50,873 INFO L470 AbstractCegarLoop]: Abstraction has 2279 states and 5665 transitions. [2022-01-17 23:30:50,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:50,873 INFO L276 IsEmpty]: Start isEmpty. Operand 2279 states and 5665 transitions. [2022-01-17 23:30:50,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:30:50,875 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:50,876 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:50,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2022-01-17 23:30:50,876 INFO L402 AbstractCegarLoop]: === Iteration 227 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:30:50,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:50,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1880438811, now seen corresponding path program 183 times [2022-01-17 23:30:50,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:50,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352568317] [2022-01-17 23:30:50,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:50,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:50,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:51,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:51,732 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:51,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352568317] [2022-01-17 23:30:51,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352568317] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:51,732 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:51,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-17 23:30:51,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528902831] [2022-01-17 23:30:51,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:51,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-17 23:30:51,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:51,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-17 23:30:51,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=830, Unknown=0, NotChecked=0, Total=930 [2022-01-17 23:30:51,733 INFO L87 Difference]: Start difference. First operand 2279 states and 5665 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:53,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:53,264 INFO L93 Difference]: Finished difference Result 2635 states and 6479 transitions. [2022-01-17 23:30:53,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:30:53,264 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:30:53,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:53,267 INFO L225 Difference]: With dead ends: 2635 [2022-01-17 23:30:53,267 INFO L226 Difference]: Without dead ends: 2360 [2022-01-17 23:30:53,267 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 564 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=567, Invalid=2625, Unknown=0, NotChecked=0, Total=3192 [2022-01-17 23:30:53,267 INFO L933 BasicCegarLoop]: 219 mSDtfsCounter, 1295 mSDsluCounter, 3093 mSDsCounter, 0 mSdLazyCounter, 1320 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1295 SdHoareTripleChecker+Valid, 3249 SdHoareTripleChecker+Invalid, 1448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 1320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:53,267 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1295 Valid, 3249 Invalid, 1448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 1320 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:30:53,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2360 states. [2022-01-17 23:30:53,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2360 to 2321. [2022-01-17 23:30:53,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2321 states, 2320 states have (on average 2.4719827586206895) internal successors, (5735), 2320 states have internal predecessors, (5735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:53,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2321 states to 2321 states and 5735 transitions. [2022-01-17 23:30:53,287 INFO L78 Accepts]: Start accepts. Automaton has 2321 states and 5735 transitions. Word has length 137 [2022-01-17 23:30:53,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:53,288 INFO L470 AbstractCegarLoop]: Abstraction has 2321 states and 5735 transitions. [2022-01-17 23:30:53,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:53,288 INFO L276 IsEmpty]: Start isEmpty. Operand 2321 states and 5735 transitions. [2022-01-17 23:30:53,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:30:53,290 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:53,290 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:53,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2022-01-17 23:30:53,290 INFO L402 AbstractCegarLoop]: === Iteration 228 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:30:53,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:53,290 INFO L85 PathProgramCache]: Analyzing trace with hash -935246781, now seen corresponding path program 184 times [2022-01-17 23:30:53,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:53,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327004862] [2022-01-17 23:30:53,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:53,290 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:53,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:53,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:53,939 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:53,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327004862] [2022-01-17 23:30:53,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327004862] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:53,940 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:53,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-17 23:30:53,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652426126] [2022-01-17 23:30:53,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:53,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-17 23:30:53,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:53,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-17 23:30:53,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=831, Unknown=0, NotChecked=0, Total=930 [2022-01-17 23:30:53,940 INFO L87 Difference]: Start difference. First operand 2321 states and 5735 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:55,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:55,592 INFO L93 Difference]: Finished difference Result 2392 states and 5852 transitions. [2022-01-17 23:30:55,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:30:55,593 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:30:55,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:55,595 INFO L225 Difference]: With dead ends: 2392 [2022-01-17 23:30:55,595 INFO L226 Difference]: Without dead ends: 1999 [2022-01-17 23:30:55,596 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 537 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=537, Invalid=2543, Unknown=0, NotChecked=0, Total=3080 [2022-01-17 23:30:55,596 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 1137 mSDsluCounter, 2761 mSDsCounter, 0 mSdLazyCounter, 1219 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1137 SdHoareTripleChecker+Valid, 2907 SdHoareTripleChecker+Invalid, 1327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:55,596 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1137 Valid, 2907 Invalid, 1327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1219 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:30:55,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1999 states. [2022-01-17 23:30:55,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1999 to 1999. [2022-01-17 23:30:55,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1999 states, 1998 states have (on average 2.502002002002002) internal successors, (4999), 1998 states have internal predecessors, (4999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:55,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1999 states to 1999 states and 4999 transitions. [2022-01-17 23:30:55,613 INFO L78 Accepts]: Start accepts. Automaton has 1999 states and 4999 transitions. Word has length 137 [2022-01-17 23:30:55,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:55,613 INFO L470 AbstractCegarLoop]: Abstraction has 1999 states and 4999 transitions. [2022-01-17 23:30:55,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:55,613 INFO L276 IsEmpty]: Start isEmpty. Operand 1999 states and 4999 transitions. [2022-01-17 23:30:55,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:30:55,616 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:55,616 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:55,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2022-01-17 23:30:55,616 INFO L402 AbstractCegarLoop]: === Iteration 229 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:30:55,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:55,616 INFO L85 PathProgramCache]: Analyzing trace with hash 89871867, now seen corresponding path program 185 times [2022-01-17 23:30:55,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:55,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618871344] [2022-01-17 23:30:55,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:55,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:55,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:56,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:56,332 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:56,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618871344] [2022-01-17 23:30:56,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618871344] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:56,333 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:56,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-17 23:30:56,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696248161] [2022-01-17 23:30:56,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:56,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-17 23:30:56,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:56,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-17 23:30:56,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2022-01-17 23:30:56,333 INFO L87 Difference]: Start difference. First operand 1999 states and 4999 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:58,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:58,460 INFO L93 Difference]: Finished difference Result 2338 states and 5744 transitions. [2022-01-17 23:30:58,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:30:58,460 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:30:58,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:58,462 INFO L225 Difference]: With dead ends: 2338 [2022-01-17 23:30:58,462 INFO L226 Difference]: Without dead ends: 2229 [2022-01-17 23:30:58,463 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 472 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=510, Invalid=2352, Unknown=0, NotChecked=0, Total=2862 [2022-01-17 23:30:58,463 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 927 mSDsluCounter, 2197 mSDsCounter, 0 mSdLazyCounter, 1197 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 927 SdHoareTripleChecker+Valid, 2303 SdHoareTripleChecker+Invalid, 1281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 1197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:58,463 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [927 Valid, 2303 Invalid, 1281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 1197 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:30:58,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2229 states. [2022-01-17 23:30:58,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2229 to 2065. [2022-01-17 23:30:58,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2065 states, 2064 states have (on average 2.51453488372093) internal successors, (5190), 2064 states have internal predecessors, (5190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:58,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2065 states to 2065 states and 5190 transitions. [2022-01-17 23:30:58,480 INFO L78 Accepts]: Start accepts. Automaton has 2065 states and 5190 transitions. Word has length 137 [2022-01-17 23:30:58,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:58,480 INFO L470 AbstractCegarLoop]: Abstraction has 2065 states and 5190 transitions. [2022-01-17 23:30:58,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:58,480 INFO L276 IsEmpty]: Start isEmpty. Operand 2065 states and 5190 transitions. [2022-01-17 23:30:58,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:30:58,482 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:58,482 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:58,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228 [2022-01-17 23:30:58,482 INFO L402 AbstractCegarLoop]: === Iteration 230 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:30:58,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:58,482 INFO L85 PathProgramCache]: Analyzing trace with hash -472645329, now seen corresponding path program 186 times [2022-01-17 23:30:58,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:58,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540538694] [2022-01-17 23:30:58,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:58,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:58,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:59,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:59,097 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:59,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540538694] [2022-01-17 23:30:59,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540538694] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:59,098 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:59,098 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:30:59,098 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98007524] [2022-01-17 23:30:59,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:59,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:30:59,098 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:59,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:30:59,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=730, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:30:59,098 INFO L87 Difference]: Start difference. First operand 2065 states and 5190 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:00,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:00,820 INFO L93 Difference]: Finished difference Result 2298 states and 5654 transitions. [2022-01-17 23:31:00,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:31:00,820 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:31:00,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:00,823 INFO L225 Difference]: With dead ends: 2298 [2022-01-17 23:31:00,824 INFO L226 Difference]: Without dead ends: 2195 [2022-01-17 23:31:00,824 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 551 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=535, Invalid=2435, Unknown=0, NotChecked=0, Total=2970 [2022-01-17 23:31:00,824 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 853 mSDsluCounter, 2089 mSDsCounter, 0 mSdLazyCounter, 1157 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 853 SdHoareTripleChecker+Valid, 2197 SdHoareTripleChecker+Invalid, 1239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:00,824 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [853 Valid, 2197 Invalid, 1239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1157 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:31:00,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2195 states. [2022-01-17 23:31:00,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2195 to 2063. [2022-01-17 23:31:00,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2063 states, 2062 states have (on average 2.51454898157129) internal successors, (5185), 2062 states have internal predecessors, (5185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:00,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2063 states to 2063 states and 5185 transitions. [2022-01-17 23:31:00,846 INFO L78 Accepts]: Start accepts. Automaton has 2063 states and 5185 transitions. Word has length 137 [2022-01-17 23:31:00,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:00,846 INFO L470 AbstractCegarLoop]: Abstraction has 2063 states and 5185 transitions. [2022-01-17 23:31:00,846 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:00,846 INFO L276 IsEmpty]: Start isEmpty. Operand 2063 states and 5185 transitions. [2022-01-17 23:31:00,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:31:00,848 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:00,848 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:00,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229 [2022-01-17 23:31:00,848 INFO L402 AbstractCegarLoop]: === Iteration 231 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:31:00,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:00,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1332607007, now seen corresponding path program 187 times [2022-01-17 23:31:00,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:00,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715578360] [2022-01-17 23:31:00,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:00,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:00,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:01,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:01,524 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:01,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715578360] [2022-01-17 23:31:01,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715578360] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:01,524 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:01,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2022-01-17 23:31:01,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517811257] [2022-01-17 23:31:01,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:01,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-01-17 23:31:01,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:01,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-01-17 23:31:01,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=895, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:31:01,525 INFO L87 Difference]: Start difference. First operand 2063 states and 5185 transitions. Second operand has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:03,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:03,582 INFO L93 Difference]: Finished difference Result 2310 states and 5672 transitions. [2022-01-17 23:31:03,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-17 23:31:03,582 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:31:03,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:03,585 INFO L225 Difference]: With dead ends: 2310 [2022-01-17 23:31:03,585 INFO L226 Difference]: Without dead ends: 2197 [2022-01-17 23:31:03,585 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 809 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=692, Invalid=3214, Unknown=0, NotChecked=0, Total=3906 [2022-01-17 23:31:03,585 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 1177 mSDsluCounter, 2045 mSDsCounter, 0 mSdLazyCounter, 1242 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1177 SdHoareTripleChecker+Valid, 2149 SdHoareTripleChecker+Invalid, 1359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 1242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:03,585 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1177 Valid, 2149 Invalid, 1359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 1242 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:31:03,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2197 states. [2022-01-17 23:31:03,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2197 to 2059. [2022-01-17 23:31:03,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2059 states, 2058 states have (on average 2.512147716229349) internal successors, (5170), 2058 states have internal predecessors, (5170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:03,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2059 states to 2059 states and 5170 transitions. [2022-01-17 23:31:03,604 INFO L78 Accepts]: Start accepts. Automaton has 2059 states and 5170 transitions. Word has length 137 [2022-01-17 23:31:03,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:03,604 INFO L470 AbstractCegarLoop]: Abstraction has 2059 states and 5170 transitions. [2022-01-17 23:31:03,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:03,604 INFO L276 IsEmpty]: Start isEmpty. Operand 2059 states and 5170 transitions. [2022-01-17 23:31:03,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:31:03,606 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:03,606 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:03,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2022-01-17 23:31:03,606 INFO L402 AbstractCegarLoop]: === Iteration 232 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:31:03,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:03,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1130734149, now seen corresponding path program 188 times [2022-01-17 23:31:03,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:03,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737917913] [2022-01-17 23:31:03,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:03,607 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:03,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:04,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:04,434 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:04,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737917913] [2022-01-17 23:31:04,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737917913] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:04,434 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:04,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2022-01-17 23:31:04,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297500598] [2022-01-17 23:31:04,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:04,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-01-17 23:31:04,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:04,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-01-17 23:31:04,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=894, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:31:04,435 INFO L87 Difference]: Start difference. First operand 2059 states and 5170 transitions. Second operand has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:06,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:06,367 INFO L93 Difference]: Finished difference Result 2366 states and 5803 transitions. [2022-01-17 23:31:06,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-17 23:31:06,367 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:31:06,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:06,370 INFO L225 Difference]: With dead ends: 2366 [2022-01-17 23:31:06,370 INFO L226 Difference]: Without dead ends: 2257 [2022-01-17 23:31:06,371 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 910 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=750, Invalid=3540, Unknown=0, NotChecked=0, Total=4290 [2022-01-17 23:31:06,371 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 1293 mSDsluCounter, 2406 mSDsCounter, 0 mSdLazyCounter, 1290 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1293 SdHoareTripleChecker+Valid, 2517 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 1290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:06,371 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1293 Valid, 2517 Invalid, 1406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 1290 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:31:06,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2257 states. [2022-01-17 23:31:06,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2257 to 2075. [2022-01-17 23:31:06,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2075 states, 2074 states have (on average 2.5144648023143685) internal successors, (5215), 2074 states have internal predecessors, (5215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:06,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2075 states to 2075 states and 5215 transitions. [2022-01-17 23:31:06,391 INFO L78 Accepts]: Start accepts. Automaton has 2075 states and 5215 transitions. Word has length 137 [2022-01-17 23:31:06,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:06,392 INFO L470 AbstractCegarLoop]: Abstraction has 2075 states and 5215 transitions. [2022-01-17 23:31:06,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:06,392 INFO L276 IsEmpty]: Start isEmpty. Operand 2075 states and 5215 transitions. [2022-01-17 23:31:06,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:31:06,394 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:06,394 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:06,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231 [2022-01-17 23:31:06,394 INFO L402 AbstractCegarLoop]: === Iteration 233 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:31:06,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:06,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1693251345, now seen corresponding path program 189 times [2022-01-17 23:31:06,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:06,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804200013] [2022-01-17 23:31:06,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:06,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:06,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:07,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:07,123 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:07,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804200013] [2022-01-17 23:31:07,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804200013] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:07,123 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:07,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-17 23:31:07,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111447041] [2022-01-17 23:31:07,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:07,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-17 23:31:07,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:07,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-17 23:31:07,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2022-01-17 23:31:07,124 INFO L87 Difference]: Start difference. First operand 2075 states and 5215 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:08,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:08,712 INFO L93 Difference]: Finished difference Result 2326 states and 5713 transitions. [2022-01-17 23:31:08,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-17 23:31:08,712 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:31:08,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:08,715 INFO L225 Difference]: With dead ends: 2326 [2022-01-17 23:31:08,715 INFO L226 Difference]: Without dead ends: 2223 [2022-01-17 23:31:08,715 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 510 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=565, Invalid=2515, Unknown=0, NotChecked=0, Total=3080 [2022-01-17 23:31:08,715 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 1025 mSDsluCounter, 1942 mSDsCounter, 0 mSdLazyCounter, 975 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1025 SdHoareTripleChecker+Valid, 2067 SdHoareTripleChecker+Invalid, 1069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:08,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1025 Valid, 2067 Invalid, 1069 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 975 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:31:08,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2223 states. [2022-01-17 23:31:08,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2223 to 2073. [2022-01-17 23:31:08,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2073 states, 2072 states have (on average 2.51496138996139) internal successors, (5211), 2072 states have internal predecessors, (5211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:08,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2073 states to 2073 states and 5211 transitions. [2022-01-17 23:31:08,734 INFO L78 Accepts]: Start accepts. Automaton has 2073 states and 5211 transitions. Word has length 137 [2022-01-17 23:31:08,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:08,734 INFO L470 AbstractCegarLoop]: Abstraction has 2073 states and 5211 transitions. [2022-01-17 23:31:08,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:08,734 INFO L276 IsEmpty]: Start isEmpty. Operand 2073 states and 5211 transitions. [2022-01-17 23:31:08,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:31:08,736 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:08,736 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:08,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232 [2022-01-17 23:31:08,736 INFO L402 AbstractCegarLoop]: === Iteration 234 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:31:08,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:08,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1560449595, now seen corresponding path program 190 times [2022-01-17 23:31:08,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:08,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252682961] [2022-01-17 23:31:08,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:08,737 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:08,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:09,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:09,350 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:09,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252682961] [2022-01-17 23:31:09,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252682961] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:09,351 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:09,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:31:09,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339452783] [2022-01-17 23:31:09,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:09,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:31:09,351 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:09,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:31:09,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=727, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:31:09,351 INFO L87 Difference]: Start difference. First operand 2073 states and 5211 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:11,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:11,016 INFO L93 Difference]: Finished difference Result 2670 states and 6596 transitions. [2022-01-17 23:31:11,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-17 23:31:11,016 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:31:11,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:11,019 INFO L225 Difference]: With dead ends: 2670 [2022-01-17 23:31:11,020 INFO L226 Difference]: Without dead ends: 2561 [2022-01-17 23:31:11,020 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 582 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=545, Invalid=2535, Unknown=0, NotChecked=0, Total=3080 [2022-01-17 23:31:11,020 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 1064 mSDsluCounter, 2618 mSDsCounter, 0 mSdLazyCounter, 1324 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1064 SdHoareTripleChecker+Valid, 2748 SdHoareTripleChecker+Invalid, 1424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:11,020 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1064 Valid, 2748 Invalid, 1424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1324 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:31:11,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2022-01-17 23:31:11,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 2143. [2022-01-17 23:31:11,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2143 states, 2142 states have (on average 2.521942110177404) internal successors, (5402), 2142 states have internal predecessors, (5402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:11,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2143 states to 2143 states and 5402 transitions. [2022-01-17 23:31:11,039 INFO L78 Accepts]: Start accepts. Automaton has 2143 states and 5402 transitions. Word has length 137 [2022-01-17 23:31:11,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:11,039 INFO L470 AbstractCegarLoop]: Abstraction has 2143 states and 5402 transitions. [2022-01-17 23:31:11,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:11,039 INFO L276 IsEmpty]: Start isEmpty. Operand 2143 states and 5402 transitions. [2022-01-17 23:31:11,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:31:11,041 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:11,041 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:11,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable233 [2022-01-17 23:31:11,042 INFO L402 AbstractCegarLoop]: === Iteration 235 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:31:11,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:11,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1118340155, now seen corresponding path program 191 times [2022-01-17 23:31:11,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:11,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537777563] [2022-01-17 23:31:11,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:11,042 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:11,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:11,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:11,576 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:11,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537777563] [2022-01-17 23:31:11,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537777563] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:11,576 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:11,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:31:11,576 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139595847] [2022-01-17 23:31:11,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:11,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:31:11,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:11,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:31:11,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=726, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:31:11,577 INFO L87 Difference]: Start difference. First operand 2143 states and 5402 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:13,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:13,616 INFO L93 Difference]: Finished difference Result 2870 states and 7126 transitions. [2022-01-17 23:31:13,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-17 23:31:13,616 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:31:13,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:13,619 INFO L225 Difference]: With dead ends: 2870 [2022-01-17 23:31:13,619 INFO L226 Difference]: Without dead ends: 2771 [2022-01-17 23:31:13,620 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 576 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=546, Invalid=2534, Unknown=0, NotChecked=0, Total=3080 [2022-01-17 23:31:13,620 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 1133 mSDsluCounter, 2407 mSDsCounter, 0 mSdLazyCounter, 1160 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1133 SdHoareTripleChecker+Valid, 2553 SdHoareTripleChecker+Invalid, 1276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 1160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:13,620 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1133 Valid, 2553 Invalid, 1276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 1160 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:31:13,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2771 states. [2022-01-17 23:31:13,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2771 to 2339. [2022-01-17 23:31:13,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2339 states, 2338 states have (on average 2.5201026518391787) internal successors, (5892), 2338 states have internal predecessors, (5892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:13,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2339 states to 2339 states and 5892 transitions. [2022-01-17 23:31:13,644 INFO L78 Accepts]: Start accepts. Automaton has 2339 states and 5892 transitions. Word has length 137 [2022-01-17 23:31:13,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:13,644 INFO L470 AbstractCegarLoop]: Abstraction has 2339 states and 5892 transitions. [2022-01-17 23:31:13,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:13,644 INFO L276 IsEmpty]: Start isEmpty. Operand 2339 states and 5892 transitions. [2022-01-17 23:31:13,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:31:13,646 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:13,646 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:13,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234 [2022-01-17 23:31:13,646 INFO L402 AbstractCegarLoop]: === Iteration 236 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:31:13,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:13,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1352668219, now seen corresponding path program 192 times [2022-01-17 23:31:13,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:13,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984755867] [2022-01-17 23:31:13,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:13,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:13,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:14,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:14,406 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:14,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984755867] [2022-01-17 23:31:14,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984755867] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:14,406 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:14,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-17 23:31:14,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635361736] [2022-01-17 23:31:14,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:14,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-17 23:31:14,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:14,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-17 23:31:14,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=830, Unknown=0, NotChecked=0, Total=930 [2022-01-17 23:31:14,406 INFO L87 Difference]: Start difference. First operand 2339 states and 5892 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:16,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:16,581 INFO L93 Difference]: Finished difference Result 3079 states and 7626 transitions. [2022-01-17 23:31:16,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-17 23:31:16,581 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:31:16,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:16,584 INFO L225 Difference]: With dead ends: 3079 [2022-01-17 23:31:16,584 INFO L226 Difference]: Without dead ends: 2804 [2022-01-17 23:31:16,585 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 594 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=577, Invalid=2729, Unknown=0, NotChecked=0, Total=3306 [2022-01-17 23:31:16,585 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 1385 mSDsluCounter, 3261 mSDsCounter, 0 mSdLazyCounter, 1384 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1385 SdHoareTripleChecker+Valid, 3419 SdHoareTripleChecker+Invalid, 1516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 1384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:16,585 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1385 Valid, 3419 Invalid, 1516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 1384 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:31:16,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2804 states. [2022-01-17 23:31:16,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2804 to 2381. [2022-01-17 23:31:16,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2381 states, 2380 states have (on average 2.5050420168067227) internal successors, (5962), 2380 states have internal predecessors, (5962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:16,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2381 states to 2381 states and 5962 transitions. [2022-01-17 23:31:16,606 INFO L78 Accepts]: Start accepts. Automaton has 2381 states and 5962 transitions. Word has length 137 [2022-01-17 23:31:16,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:16,606 INFO L470 AbstractCegarLoop]: Abstraction has 2381 states and 5962 transitions. [2022-01-17 23:31:16,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:16,606 INFO L276 IsEmpty]: Start isEmpty. Operand 2381 states and 5962 transitions. [2022-01-17 23:31:16,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:31:16,608 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:16,608 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:16,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable235 [2022-01-17 23:31:16,609 INFO L402 AbstractCegarLoop]: === Iteration 237 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:31:16,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:16,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1997107047, now seen corresponding path program 193 times [2022-01-17 23:31:16,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:16,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661064119] [2022-01-17 23:31:16,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:16,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:16,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:17,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:17,535 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:17,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661064119] [2022-01-17 23:31:17,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661064119] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:17,535 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:17,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-17 23:31:17,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009631547] [2022-01-17 23:31:17,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:17,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-17 23:31:17,536 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:17,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-17 23:31:17,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=831, Unknown=0, NotChecked=0, Total=930 [2022-01-17 23:31:17,536 INFO L87 Difference]: Start difference. First operand 2381 states and 5962 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:19,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:19,712 INFO L93 Difference]: Finished difference Result 2836 states and 6999 transitions. [2022-01-17 23:31:19,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:31:19,712 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:31:19,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:19,715 INFO L225 Difference]: With dead ends: 2836 [2022-01-17 23:31:19,715 INFO L226 Difference]: Without dead ends: 2457 [2022-01-17 23:31:19,715 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 565 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=549, Invalid=2643, Unknown=0, NotChecked=0, Total=3192 [2022-01-17 23:31:19,715 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 1380 mSDsluCounter, 2903 mSDsCounter, 0 mSdLazyCounter, 1284 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1380 SdHoareTripleChecker+Valid, 3049 SdHoareTripleChecker+Invalid, 1415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 1284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:19,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1380 Valid, 3049 Invalid, 1415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 1284 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:31:19,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2457 states. [2022-01-17 23:31:19,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2457 to 2073. [2022-01-17 23:31:19,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2073 states, 2072 states have (on average 2.5082046332046333) internal successors, (5197), 2072 states have internal predecessors, (5197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:19,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2073 states to 2073 states and 5197 transitions. [2022-01-17 23:31:19,733 INFO L78 Accepts]: Start accepts. Automaton has 2073 states and 5197 transitions. Word has length 137 [2022-01-17 23:31:19,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:19,733 INFO L470 AbstractCegarLoop]: Abstraction has 2073 states and 5197 transitions. [2022-01-17 23:31:19,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:19,734 INFO L276 IsEmpty]: Start isEmpty. Operand 2073 states and 5197 transitions. [2022-01-17 23:31:19,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:31:19,735 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:19,735 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:19,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236 [2022-01-17 23:31:19,736 INFO L402 AbstractCegarLoop]: === Iteration 238 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:31:19,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:19,736 INFO L85 PathProgramCache]: Analyzing trace with hash 397729647, now seen corresponding path program 194 times [2022-01-17 23:31:19,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:19,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538777573] [2022-01-17 23:31:19,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:19,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:19,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:20,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:20,415 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:20,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538777573] [2022-01-17 23:31:20,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538777573] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:20,416 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:20,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:31:20,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712172696] [2022-01-17 23:31:20,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:20,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:31:20,416 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:20,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:31:20,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=728, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:31:20,416 INFO L87 Difference]: Start difference. First operand 2073 states and 5197 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:22,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:22,151 INFO L93 Difference]: Finished difference Result 2332 states and 5698 transitions. [2022-01-17 23:31:22,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-17 23:31:22,152 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:31:22,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:22,154 INFO L225 Difference]: With dead ends: 2332 [2022-01-17 23:31:22,154 INFO L226 Difference]: Without dead ends: 2231 [2022-01-17 23:31:22,155 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 598 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=582, Invalid=2610, Unknown=0, NotChecked=0, Total=3192 [2022-01-17 23:31:22,155 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 1085 mSDsluCounter, 2326 mSDsCounter, 0 mSdLazyCounter, 1137 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1085 SdHoareTripleChecker+Valid, 2453 SdHoareTripleChecker+Invalid, 1237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:22,155 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1085 Valid, 2453 Invalid, 1237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1137 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:31:22,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2022-01-17 23:31:22,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 2087. [2022-01-17 23:31:22,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2087 states, 2086 states have (on average 2.50431447746884) internal successors, (5224), 2086 states have internal predecessors, (5224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:22,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2087 states to 2087 states and 5224 transitions. [2022-01-17 23:31:22,173 INFO L78 Accepts]: Start accepts. Automaton has 2087 states and 5224 transitions. Word has length 137 [2022-01-17 23:31:22,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:22,173 INFO L470 AbstractCegarLoop]: Abstraction has 2087 states and 5224 transitions. [2022-01-17 23:31:22,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:22,173 INFO L276 IsEmpty]: Start isEmpty. Operand 2087 states and 5224 transitions. [2022-01-17 23:31:22,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:31:22,175 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:22,175 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:22,175 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable237 [2022-01-17 23:31:22,176 INFO L402 AbstractCegarLoop]: === Iteration 239 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:31:22,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:22,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1731468015, now seen corresponding path program 195 times [2022-01-17 23:31:22,176 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:22,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332834614] [2022-01-17 23:31:22,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:22,176 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:22,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:22,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:22,740 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:22,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332834614] [2022-01-17 23:31:22,740 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332834614] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:22,740 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:22,740 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:31:22,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64750133] [2022-01-17 23:31:22,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:22,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:31:22,741 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:22,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:31:22,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=726, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:31:22,741 INFO L87 Difference]: Start difference. First operand 2087 states and 5224 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:24,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:24,327 INFO L93 Difference]: Finished difference Result 2558 states and 6292 transitions. [2022-01-17 23:31:24,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-17 23:31:24,327 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:31:24,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:24,330 INFO L225 Difference]: With dead ends: 2558 [2022-01-17 23:31:24,330 INFO L226 Difference]: Without dead ends: 2459 [2022-01-17 23:31:24,330 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 575 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=549, Invalid=2531, Unknown=0, NotChecked=0, Total=3080 [2022-01-17 23:31:24,330 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 1070 mSDsluCounter, 2207 mSDsCounter, 0 mSdLazyCounter, 1086 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1070 SdHoareTripleChecker+Valid, 2355 SdHoareTripleChecker+Invalid, 1188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1086 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:24,331 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1070 Valid, 2355 Invalid, 1188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1086 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:31:24,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2459 states. [2022-01-17 23:31:24,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2459 to 2283. [2022-01-17 23:31:24,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2283 states, 2282 states have (on average 2.5039439088518844) internal successors, (5714), 2282 states have internal predecessors, (5714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:24,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2283 states to 2283 states and 5714 transitions. [2022-01-17 23:31:24,350 INFO L78 Accepts]: Start accepts. Automaton has 2283 states and 5714 transitions. Word has length 137 [2022-01-17 23:31:24,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:24,350 INFO L470 AbstractCegarLoop]: Abstraction has 2283 states and 5714 transitions. [2022-01-17 23:31:24,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:24,350 INFO L276 IsEmpty]: Start isEmpty. Operand 2283 states and 5714 transitions. [2022-01-17 23:31:24,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:31:24,353 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:24,353 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:24,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable238 [2022-01-17 23:31:24,353 INFO L402 AbstractCegarLoop]: === Iteration 240 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:31:24,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:24,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1939522159, now seen corresponding path program 196 times [2022-01-17 23:31:24,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:24,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006556622] [2022-01-17 23:31:24,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:24,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:24,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:25,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:25,054 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:25,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006556622] [2022-01-17 23:31:25,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006556622] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:25,054 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:25,054 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2022-01-17 23:31:25,054 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683693716] [2022-01-17 23:31:25,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:25,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-01-17 23:31:25,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:25,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-01-17 23:31:25,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=970, Unknown=0, NotChecked=0, Total=1056 [2022-01-17 23:31:25,055 INFO L87 Difference]: Start difference. First operand 2283 states and 5714 transitions. Second operand has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:27,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:27,074 INFO L93 Difference]: Finished difference Result 2767 states and 6792 transitions. [2022-01-17 23:31:27,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-17 23:31:27,074 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:31:27,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:27,077 INFO L225 Difference]: With dead ends: 2767 [2022-01-17 23:31:27,077 INFO L226 Difference]: Without dead ends: 2492 [2022-01-17 23:31:27,078 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 790 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=713, Invalid=3709, Unknown=0, NotChecked=0, Total=4422 [2022-01-17 23:31:27,078 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 1307 mSDsluCounter, 3002 mSDsCounter, 0 mSdLazyCounter, 1301 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1307 SdHoareTripleChecker+Valid, 3158 SdHoareTripleChecker+Invalid, 1418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 1301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:27,078 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1307 Valid, 3158 Invalid, 1418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 1301 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:31:27,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2492 states. [2022-01-17 23:31:27,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2492 to 2325. [2022-01-17 23:31:27,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2325 states, 2324 states have (on average 2.4888123924268504) internal successors, (5784), 2324 states have internal predecessors, (5784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:27,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2325 states to 2325 states and 5784 transitions. [2022-01-17 23:31:27,097 INFO L78 Accepts]: Start accepts. Automaton has 2325 states and 5784 transitions. Word has length 137 [2022-01-17 23:31:27,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:27,098 INFO L470 AbstractCegarLoop]: Abstraction has 2325 states and 5784 transitions. [2022-01-17 23:31:27,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:27,098 INFO L276 IsEmpty]: Start isEmpty. Operand 2325 states and 5784 transitions. [2022-01-17 23:31:27,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:31:27,100 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:27,100 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:27,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable239 [2022-01-17 23:31:27,100 INFO L402 AbstractCegarLoop]: === Iteration 241 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:31:27,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:27,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1410253107, now seen corresponding path program 197 times [2022-01-17 23:31:27,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:27,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592406564] [2022-01-17 23:31:27,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:27,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:27,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:28,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:28,005 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:28,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592406564] [2022-01-17 23:31:28,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592406564] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:28,005 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:28,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-17 23:31:28,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141004407] [2022-01-17 23:31:28,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:28,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-17 23:31:28,005 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:28,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-17 23:31:28,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=831, Unknown=0, NotChecked=0, Total=930 [2022-01-17 23:31:28,006 INFO L87 Difference]: Start difference. First operand 2325 states and 5784 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:29,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:29,868 INFO L93 Difference]: Finished difference Result 2524 states and 6165 transitions. [2022-01-17 23:31:29,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:31:29,869 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:31:29,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:29,872 INFO L225 Difference]: With dead ends: 2524 [2022-01-17 23:31:29,872 INFO L226 Difference]: Without dead ends: 2187 [2022-01-17 23:31:29,872 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 561 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=557, Invalid=2635, Unknown=0, NotChecked=0, Total=3192 [2022-01-17 23:31:29,872 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 1248 mSDsluCounter, 2620 mSDsCounter, 0 mSdLazyCounter, 1161 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1248 SdHoareTripleChecker+Valid, 2770 SdHoareTripleChecker+Invalid, 1278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 1161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:29,872 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1248 Valid, 2770 Invalid, 1278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 1161 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:31:29,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2187 states. [2022-01-17 23:31:29,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2187 to 2059. [2022-01-17 23:31:29,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2059 states, 2058 states have (on average 2.5053449951409137) internal successors, (5156), 2058 states have internal predecessors, (5156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:29,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2059 states to 2059 states and 5156 transitions. [2022-01-17 23:31:29,891 INFO L78 Accepts]: Start accepts. Automaton has 2059 states and 5156 transitions. Word has length 137 [2022-01-17 23:31:29,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:29,891 INFO L470 AbstractCegarLoop]: Abstraction has 2059 states and 5156 transitions. [2022-01-17 23:31:29,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:29,891 INFO L276 IsEmpty]: Start isEmpty. Operand 2059 states and 5156 transitions. [2022-01-17 23:31:29,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:31:29,893 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:29,893 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:29,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable240 [2022-01-17 23:31:29,893 INFO L402 AbstractCegarLoop]: === Iteration 242 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:31:29,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:29,893 INFO L85 PathProgramCache]: Analyzing trace with hash -936705695, now seen corresponding path program 198 times [2022-01-17 23:31:29,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:29,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004067463] [2022-01-17 23:31:29,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:29,894 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:29,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:30,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:30,533 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:30,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004067463] [2022-01-17 23:31:30,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004067463] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:30,533 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:30,533 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:31:30,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645050564] [2022-01-17 23:31:30,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:30,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:31:30,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:30,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:31:30,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=729, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:31:30,534 INFO L87 Difference]: Start difference. First operand 2059 states and 5156 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:32,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:32,447 INFO L93 Difference]: Finished difference Result 2312 states and 5641 transitions. [2022-01-17 23:31:32,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:31:32,447 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:31:32,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:32,450 INFO L225 Difference]: With dead ends: 2312 [2022-01-17 23:31:32,450 INFO L226 Difference]: Without dead ends: 2205 [2022-01-17 23:31:32,450 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 528 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=515, Invalid=2347, Unknown=0, NotChecked=0, Total=2862 [2022-01-17 23:31:32,450 INFO L933 BasicCegarLoop]: 167 mSDtfsCounter, 910 mSDsluCounter, 2320 mSDsCounter, 0 mSdLazyCounter, 1292 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 910 SdHoareTripleChecker+Valid, 2430 SdHoareTripleChecker+Invalid, 1388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:32,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [910 Valid, 2430 Invalid, 1388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 1292 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:31:32,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2205 states. [2022-01-17 23:31:32,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2205 to 2115. [2022-01-17 23:31:32,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2115 states, 2114 states have (on average 2.4971617786187323) internal successors, (5279), 2114 states have internal predecessors, (5279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:32,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2115 states to 2115 states and 5279 transitions. [2022-01-17 23:31:32,468 INFO L78 Accepts]: Start accepts. Automaton has 2115 states and 5279 transitions. Word has length 137 [2022-01-17 23:31:32,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:32,468 INFO L470 AbstractCegarLoop]: Abstraction has 2115 states and 5279 transitions. [2022-01-17 23:31:32,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:32,468 INFO L276 IsEmpty]: Start isEmpty. Operand 2115 states and 5279 transitions. [2022-01-17 23:31:32,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:31:32,470 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:32,470 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:32,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable241 [2022-01-17 23:31:32,470 INFO L402 AbstractCegarLoop]: === Iteration 243 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:31:32,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:32,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1391722079, now seen corresponding path program 199 times [2022-01-17 23:31:32,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:32,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200164814] [2022-01-17 23:31:32,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:32,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:32,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:33,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:33,129 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:33,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200164814] [2022-01-17 23:31:33,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200164814] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:33,129 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:33,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:31:33,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716439326] [2022-01-17 23:31:33,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:33,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:31:33,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:33,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:31:33,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=728, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:31:33,130 INFO L87 Difference]: Start difference. First operand 2115 states and 5279 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:35,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:35,053 INFO L93 Difference]: Finished difference Result 2310 states and 5640 transitions. [2022-01-17 23:31:35,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-17 23:31:35,053 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:31:35,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:35,055 INFO L225 Difference]: With dead ends: 2310 [2022-01-17 23:31:35,056 INFO L226 Difference]: Without dead ends: 2209 [2022-01-17 23:31:35,056 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 572 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=557, Invalid=2523, Unknown=0, NotChecked=0, Total=3080 [2022-01-17 23:31:35,056 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 1061 mSDsluCounter, 2082 mSDsCounter, 0 mSdLazyCounter, 1053 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1061 SdHoareTripleChecker+Valid, 2213 SdHoareTripleChecker+Invalid, 1161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1053 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:35,056 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1061 Valid, 2213 Invalid, 1161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1053 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:31:35,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2209 states. [2022-01-17 23:31:35,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2209 to 2129. [2022-01-17 23:31:35,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2129 states, 2128 states have (on average 2.4934210526315788) internal successors, (5306), 2128 states have internal predecessors, (5306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:35,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2129 states to 2129 states and 5306 transitions. [2022-01-17 23:31:35,074 INFO L78 Accepts]: Start accepts. Automaton has 2129 states and 5306 transitions. Word has length 137 [2022-01-17 23:31:35,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:35,074 INFO L470 AbstractCegarLoop]: Abstraction has 2129 states and 5306 transitions. [2022-01-17 23:31:35,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:35,074 INFO L276 IsEmpty]: Start isEmpty. Operand 2129 states and 5306 transitions. [2022-01-17 23:31:35,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:31:35,076 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:35,076 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:35,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242 [2022-01-17 23:31:35,076 INFO L402 AbstractCegarLoop]: === Iteration 244 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:31:35,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:35,076 INFO L85 PathProgramCache]: Analyzing trace with hash -57983711, now seen corresponding path program 200 times [2022-01-17 23:31:35,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:35,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239633270] [2022-01-17 23:31:35,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:35,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:35,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:35,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:35,821 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:35,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239633270] [2022-01-17 23:31:35,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239633270] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:35,821 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:35,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:31:35,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227924943] [2022-01-17 23:31:35,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:35,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:31:35,821 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:35,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:31:35,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=726, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:31:35,822 INFO L87 Difference]: Start difference. First operand 2129 states and 5306 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:37,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:37,626 INFO L93 Difference]: Finished difference Result 2536 states and 6234 transitions. [2022-01-17 23:31:37,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:31:37,626 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:31:37,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:37,629 INFO L225 Difference]: With dead ends: 2536 [2022-01-17 23:31:37,629 INFO L226 Difference]: Without dead ends: 2437 [2022-01-17 23:31:37,629 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 550 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=527, Invalid=2443, Unknown=0, NotChecked=0, Total=2970 [2022-01-17 23:31:37,630 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 1164 mSDsluCounter, 2151 mSDsCounter, 0 mSdLazyCounter, 1075 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1164 SdHoareTripleChecker+Valid, 2297 SdHoareTripleChecker+Invalid, 1196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 1075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:37,630 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1164 Valid, 2297 Invalid, 1196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 1075 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:31:37,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2437 states. [2022-01-17 23:31:37,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2437 to 2325. [2022-01-17 23:31:37,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2325 states, 2324 states have (on average 2.4939759036144578) internal successors, (5796), 2324 states have internal predecessors, (5796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:37,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2325 states to 2325 states and 5796 transitions. [2022-01-17 23:31:37,649 INFO L78 Accepts]: Start accepts. Automaton has 2325 states and 5796 transitions. Word has length 137 [2022-01-17 23:31:37,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:37,649 INFO L470 AbstractCegarLoop]: Abstraction has 2325 states and 5796 transitions. [2022-01-17 23:31:37,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:37,649 INFO L276 IsEmpty]: Start isEmpty. Operand 2325 states and 5796 transitions. [2022-01-17 23:31:37,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:31:37,651 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:37,651 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:37,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable243 [2022-01-17 23:31:37,651 INFO L402 AbstractCegarLoop]: === Iteration 245 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:31:37,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:37,651 INFO L85 PathProgramCache]: Analyzing trace with hash 150070433, now seen corresponding path program 201 times [2022-01-17 23:31:37,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:37,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677830213] [2022-01-17 23:31:37,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:37,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:37,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:38,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:38,433 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:38,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677830213] [2022-01-17 23:31:38,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677830213] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:38,433 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:38,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-17 23:31:38,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262021825] [2022-01-17 23:31:38,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:38,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-17 23:31:38,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:38,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-17 23:31:38,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=1003, Unknown=0, NotChecked=0, Total=1122 [2022-01-17 23:31:38,434 INFO L87 Difference]: Start difference. First operand 2325 states and 5796 transitions. Second operand has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:40,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:40,548 INFO L93 Difference]: Finished difference Result 2745 states and 6734 transitions. [2022-01-17 23:31:40,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-17 23:31:40,548 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:31:40,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:40,551 INFO L225 Difference]: With dead ends: 2745 [2022-01-17 23:31:40,551 INFO L226 Difference]: Without dead ends: 2470 [2022-01-17 23:31:40,551 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 872 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=762, Invalid=3660, Unknown=0, NotChecked=0, Total=4422 [2022-01-17 23:31:40,552 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 1370 mSDsluCounter, 3277 mSDsCounter, 0 mSdLazyCounter, 1446 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1370 SdHoareTripleChecker+Valid, 3425 SdHoareTripleChecker+Invalid, 1584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 1446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:40,552 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1370 Valid, 3425 Invalid, 1584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 1446 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:31:40,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2470 states. [2022-01-17 23:31:40,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2470 to 2367. [2022-01-17 23:31:40,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2367 states, 2366 states have (on average 2.4792899408284024) internal successors, (5866), 2366 states have internal predecessors, (5866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:40,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2367 states to 2367 states and 5866 transitions. [2022-01-17 23:31:40,571 INFO L78 Accepts]: Start accepts. Automaton has 2367 states and 5866 transitions. Word has length 137 [2022-01-17 23:31:40,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:40,571 INFO L470 AbstractCegarLoop]: Abstraction has 2367 states and 5866 transitions. [2022-01-17 23:31:40,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:40,571 INFO L276 IsEmpty]: Start isEmpty. Operand 2367 states and 5866 transitions. [2022-01-17 23:31:40,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:31:40,573 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:40,573 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:40,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable244 [2022-01-17 23:31:40,574 INFO L402 AbstractCegarLoop]: === Iteration 246 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:31:40,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:40,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1095262463, now seen corresponding path program 202 times [2022-01-17 23:31:40,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:40,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790694588] [2022-01-17 23:31:40,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:40,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:40,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:41,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:41,126 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:41,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790694588] [2022-01-17 23:31:41,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790694588] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:41,126 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:41,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-17 23:31:41,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376177622] [2022-01-17 23:31:41,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:41,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-17 23:31:41,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:41,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-17 23:31:41,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2022-01-17 23:31:41,127 INFO L87 Difference]: Start difference. First operand 2367 states and 5866 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:42,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:42,650 INFO L93 Difference]: Finished difference Result 2502 states and 6107 transitions. [2022-01-17 23:31:42,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:31:42,650 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:31:42,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:42,653 INFO L225 Difference]: With dead ends: 2502 [2022-01-17 23:31:42,653 INFO L226 Difference]: Without dead ends: 2095 [2022-01-17 23:31:42,653 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 440 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=489, Invalid=2267, Unknown=0, NotChecked=0, Total=2756 [2022-01-17 23:31:42,653 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 1151 mSDsluCounter, 2592 mSDsCounter, 0 mSdLazyCounter, 1144 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1151 SdHoareTripleChecker+Valid, 2740 SdHoareTripleChecker+Invalid, 1258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 1144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:42,653 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1151 Valid, 2740 Invalid, 1258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 1144 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:31:42,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2095 states. [2022-01-17 23:31:42,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2095 to 2031. [2022-01-17 23:31:42,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2031 states, 2030 states have (on average 2.4931034482758623) internal successors, (5061), 2030 states have internal predecessors, (5061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:42,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2031 states to 2031 states and 5061 transitions. [2022-01-17 23:31:42,670 INFO L78 Accepts]: Start accepts. Automaton has 2031 states and 5061 transitions. Word has length 137 [2022-01-17 23:31:42,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:42,670 INFO L470 AbstractCegarLoop]: Abstraction has 2031 states and 5061 transitions. [2022-01-17 23:31:42,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:42,671 INFO L276 IsEmpty]: Start isEmpty. Operand 2031 states and 5061 transitions. [2022-01-17 23:31:42,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:31:42,672 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:42,673 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:42,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable245 [2022-01-17 23:31:42,673 INFO L402 AbstractCegarLoop]: === Iteration 247 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:31:42,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:42,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1843929917, now seen corresponding path program 203 times [2022-01-17 23:31:42,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:42,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645480110] [2022-01-17 23:31:42,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:42,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:42,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:43,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:43,261 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:43,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645480110] [2022-01-17 23:31:43,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645480110] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:43,261 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:43,261 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-17 23:31:43,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103568225] [2022-01-17 23:31:43,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:43,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-17 23:31:43,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:43,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-17 23:31:43,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2022-01-17 23:31:43,261 INFO L87 Difference]: Start difference. First operand 2031 states and 5061 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:44,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:44,866 INFO L93 Difference]: Finished difference Result 2207 states and 5383 transitions. [2022-01-17 23:31:44,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:31:44,866 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:31:44,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:44,868 INFO L225 Difference]: With dead ends: 2207 [2022-01-17 23:31:44,868 INFO L226 Difference]: Without dead ends: 2061 [2022-01-17 23:31:44,868 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=500, Invalid=2256, Unknown=0, NotChecked=0, Total=2756 [2022-01-17 23:31:44,868 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 954 mSDsluCounter, 2138 mSDsCounter, 0 mSdLazyCounter, 1145 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 954 SdHoareTripleChecker+Valid, 2229 SdHoareTripleChecker+Invalid, 1236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:44,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [954 Valid, 2229 Invalid, 1236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1145 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:31:44,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2061 states. [2022-01-17 23:31:44,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2061 to 2029. [2022-01-17 23:31:44,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2029 states, 2028 states have (on average 2.4935897435897436) internal successors, (5057), 2028 states have internal predecessors, (5057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:44,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2029 states to 2029 states and 5057 transitions. [2022-01-17 23:31:44,886 INFO L78 Accepts]: Start accepts. Automaton has 2029 states and 5057 transitions. Word has length 137 [2022-01-17 23:31:44,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:44,886 INFO L470 AbstractCegarLoop]: Abstraction has 2029 states and 5057 transitions. [2022-01-17 23:31:44,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:44,886 INFO L276 IsEmpty]: Start isEmpty. Operand 2029 states and 5057 transitions. [2022-01-17 23:31:44,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:31:44,888 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:44,888 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:44,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable246 [2022-01-17 23:31:44,888 INFO L402 AbstractCegarLoop]: === Iteration 248 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:31:44,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:44,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1528138941, now seen corresponding path program 204 times [2022-01-17 23:31:44,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:44,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667200996] [2022-01-17 23:31:44,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:44,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:44,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:45,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:45,533 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:45,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667200996] [2022-01-17 23:31:45,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667200996] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:45,533 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:45,533 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:31:45,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167308953] [2022-01-17 23:31:45,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:45,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:31:45,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:45,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:31:45,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=729, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:31:45,534 INFO L87 Difference]: Start difference. First operand 2029 states and 5057 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:47,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:47,237 INFO L93 Difference]: Finished difference Result 2229 states and 5429 transitions. [2022-01-17 23:31:47,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:31:47,237 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:31:47,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:47,240 INFO L225 Difference]: With dead ends: 2229 [2022-01-17 23:31:47,240 INFO L226 Difference]: Without dead ends: 2085 [2022-01-17 23:31:47,240 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 528 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=515, Invalid=2347, Unknown=0, NotChecked=0, Total=2862 [2022-01-17 23:31:47,240 INFO L933 BasicCegarLoop]: 167 mSDtfsCounter, 924 mSDsluCounter, 2384 mSDsCounter, 0 mSdLazyCounter, 1284 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 924 SdHoareTripleChecker+Valid, 2482 SdHoareTripleChecker+Invalid, 1380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:47,240 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [924 Valid, 2482 Invalid, 1380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 1284 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:31:47,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2085 states. [2022-01-17 23:31:47,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2085 to 2069. [2022-01-17 23:31:47,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2069 states, 2068 states have (on average 2.4825918762088977) internal successors, (5134), 2068 states have internal predecessors, (5134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:47,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2069 states to 2069 states and 5134 transitions. [2022-01-17 23:31:47,257 INFO L78 Accepts]: Start accepts. Automaton has 2069 states and 5134 transitions. Word has length 137 [2022-01-17 23:31:47,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:47,257 INFO L470 AbstractCegarLoop]: Abstraction has 2069 states and 5134 transitions. [2022-01-17 23:31:47,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:47,257 INFO L276 IsEmpty]: Start isEmpty. Operand 2069 states and 5134 transitions. [2022-01-17 23:31:47,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:31:47,259 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:47,259 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:47,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable247 [2022-01-17 23:31:47,259 INFO L402 AbstractCegarLoop]: === Iteration 249 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:31:47,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:47,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1221112673, now seen corresponding path program 205 times [2022-01-17 23:31:47,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:47,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031935394] [2022-01-17 23:31:47,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:47,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:47,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:48,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:48,089 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:48,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031935394] [2022-01-17 23:31:48,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031935394] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:48,089 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:48,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-17 23:31:48,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752886266] [2022-01-17 23:31:48,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:48,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-17 23:31:48,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:48,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-17 23:31:48,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=835, Unknown=0, NotChecked=0, Total=930 [2022-01-17 23:31:48,090 INFO L87 Difference]: Start difference. First operand 2069 states and 5134 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:49,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:49,812 INFO L93 Difference]: Finished difference Result 2507 states and 6135 transitions. [2022-01-17 23:31:49,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:31:49,812 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:31:49,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:49,815 INFO L225 Difference]: With dead ends: 2507 [2022-01-17 23:31:49,815 INFO L226 Difference]: Without dead ends: 2373 [2022-01-17 23:31:49,815 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 594 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=552, Invalid=2640, Unknown=0, NotChecked=0, Total=3192 [2022-01-17 23:31:49,816 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 1168 mSDsluCounter, 2685 mSDsCounter, 0 mSdLazyCounter, 1386 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1168 SdHoareTripleChecker+Valid, 2801 SdHoareTripleChecker+Invalid, 1513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 1386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:49,816 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1168 Valid, 2801 Invalid, 1513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 1386 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:31:49,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2373 states. [2022-01-17 23:31:49,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2373 to 2279. [2022-01-17 23:31:49,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2279 states, 2278 states have (on average 2.481123792800702) internal successors, (5652), 2278 states have internal predecessors, (5652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:49,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2279 states to 2279 states and 5652 transitions. [2022-01-17 23:31:49,838 INFO L78 Accepts]: Start accepts. Automaton has 2279 states and 5652 transitions. Word has length 137 [2022-01-17 23:31:49,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:49,838 INFO L470 AbstractCegarLoop]: Abstraction has 2279 states and 5652 transitions. [2022-01-17 23:31:49,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:49,839 INFO L276 IsEmpty]: Start isEmpty. Operand 2279 states and 5652 transitions. [2022-01-17 23:31:49,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:31:49,841 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:49,841 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:49,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable248 [2022-01-17 23:31:49,841 INFO L402 AbstractCegarLoop]: === Iteration 250 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:31:49,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:49,841 INFO L85 PathProgramCache]: Analyzing trace with hash 170898243, now seen corresponding path program 206 times [2022-01-17 23:31:49,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:49,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483255357] [2022-01-17 23:31:49,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:49,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:49,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:50,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:50,558 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:50,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483255357] [2022-01-17 23:31:50,559 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483255357] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:50,559 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:50,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-17 23:31:50,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696481908] [2022-01-17 23:31:50,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:50,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-17 23:31:50,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:50,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-17 23:31:50,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=835, Unknown=0, NotChecked=0, Total=930 [2022-01-17 23:31:50,559 INFO L87 Difference]: Start difference. First operand 2279 states and 5652 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:52,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:52,736 INFO L93 Difference]: Finished difference Result 2771 states and 6725 transitions. [2022-01-17 23:31:52,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-17 23:31:52,736 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:31:52,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:52,739 INFO L225 Difference]: With dead ends: 2771 [2022-01-17 23:31:52,739 INFO L226 Difference]: Without dead ends: 2188 [2022-01-17 23:31:52,739 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 699 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=631, Invalid=3029, Unknown=0, NotChecked=0, Total=3660 [2022-01-17 23:31:52,739 INFO L933 BasicCegarLoop]: 218 mSDtfsCounter, 1417 mSDsluCounter, 3334 mSDsCounter, 0 mSdLazyCounter, 1484 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1417 SdHoareTripleChecker+Valid, 3465 SdHoareTripleChecker+Invalid, 1635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 1484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:52,739 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1417 Valid, 3465 Invalid, 1635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 1484 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:31:52,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2188 states. [2022-01-17 23:31:52,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2188 to 2083. [2022-01-17 23:31:52,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2083 states, 2082 states have (on average 2.472622478386167) internal successors, (5148), 2082 states have internal predecessors, (5148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:52,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2083 states to 2083 states and 5148 transitions. [2022-01-17 23:31:52,756 INFO L78 Accepts]: Start accepts. Automaton has 2083 states and 5148 transitions. Word has length 137 [2022-01-17 23:31:52,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:52,756 INFO L470 AbstractCegarLoop]: Abstraction has 2083 states and 5148 transitions. [2022-01-17 23:31:52,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:52,757 INFO L276 IsEmpty]: Start isEmpty. Operand 2083 states and 5148 transitions. [2022-01-17 23:31:52,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:31:52,758 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:52,758 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:52,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable249 [2022-01-17 23:31:52,759 INFO L402 AbstractCegarLoop]: === Iteration 251 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:31:52,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:52,759 INFO L85 PathProgramCache]: Analyzing trace with hash -983311871, now seen corresponding path program 207 times [2022-01-17 23:31:52,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:52,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544228903] [2022-01-17 23:31:52,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:52,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:52,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:53,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:53,470 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:53,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544228903] [2022-01-17 23:31:53,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544228903] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:53,470 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:53,470 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-17 23:31:53,470 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833518601] [2022-01-17 23:31:53,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:53,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-17 23:31:53,470 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:53,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-17 23:31:53,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1008, Unknown=0, NotChecked=0, Total=1122 [2022-01-17 23:31:53,471 INFO L87 Difference]: Start difference. First operand 2083 states and 5148 transitions. Second operand has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:56,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:56,018 INFO L93 Difference]: Finished difference Result 2219 states and 5396 transitions. [2022-01-17 23:31:56,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-17 23:31:56,018 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:31:56,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:56,020 INFO L225 Difference]: With dead ends: 2219 [2022-01-17 23:31:56,020 INFO L226 Difference]: Without dead ends: 1985 [2022-01-17 23:31:56,021 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 841 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=708, Invalid=3452, Unknown=0, NotChecked=0, Total=4160 [2022-01-17 23:31:56,021 INFO L933 BasicCegarLoop]: 176 mSDtfsCounter, 1164 mSDsluCounter, 2933 mSDsCounter, 0 mSdLazyCounter, 1539 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1164 SdHoareTripleChecker+Valid, 3021 SdHoareTripleChecker+Invalid, 1650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 1539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:56,021 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1164 Valid, 3021 Invalid, 1650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 1539 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:31:56,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1985 states. [2022-01-17 23:31:56,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1985 to 1985. [2022-01-17 23:31:56,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1985 states, 1984 states have (on average 2.498991935483871) internal successors, (4958), 1984 states have internal predecessors, (4958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:56,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1985 states to 1985 states and 4958 transitions. [2022-01-17 23:31:56,037 INFO L78 Accepts]: Start accepts. Automaton has 1985 states and 4958 transitions. Word has length 137 [2022-01-17 23:31:56,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:56,037 INFO L470 AbstractCegarLoop]: Abstraction has 1985 states and 4958 transitions. [2022-01-17 23:31:56,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:56,038 INFO L276 IsEmpty]: Start isEmpty. Operand 1985 states and 4958 transitions. [2022-01-17 23:31:56,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:31:56,039 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:56,039 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:56,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable250 [2022-01-17 23:31:56,039 INFO L402 AbstractCegarLoop]: === Iteration 252 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:31:56,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:56,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1503061787, now seen corresponding path program 208 times [2022-01-17 23:31:56,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:56,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147509939] [2022-01-17 23:31:56,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:56,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:56,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:56,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:56,784 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:56,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147509939] [2022-01-17 23:31:56,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147509939] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:56,784 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:56,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:31:56,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873889993] [2022-01-17 23:31:56,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:56,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:31:56,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:56,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:31:56,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=730, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:31:56,785 INFO L87 Difference]: Start difference. First operand 1985 states and 4958 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:58,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:58,947 INFO L93 Difference]: Finished difference Result 2178 states and 5342 transitions. [2022-01-17 23:31:58,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-17 23:31:58,948 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:31:58,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:58,950 INFO L225 Difference]: With dead ends: 2178 [2022-01-17 23:31:58,950 INFO L226 Difference]: Without dead ends: 2039 [2022-01-17 23:31:58,950 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 602 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=541, Invalid=2539, Unknown=0, NotChecked=0, Total=3080 [2022-01-17 23:31:58,950 INFO L933 BasicCegarLoop]: 159 mSDtfsCounter, 932 mSDsluCounter, 1983 mSDsCounter, 0 mSdLazyCounter, 1035 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 932 SdHoareTripleChecker+Valid, 2088 SdHoareTripleChecker+Invalid, 1119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 1035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:58,950 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [932 Valid, 2088 Invalid, 1119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 1035 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:31:58,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2039 states. [2022-01-17 23:31:58,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2039 to 1991. [2022-01-17 23:31:58,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1991 states, 1990 states have (on average 2.4959798994974873) internal successors, (4967), 1990 states have internal predecessors, (4967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:58,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1991 states to 1991 states and 4967 transitions. [2022-01-17 23:31:58,966 INFO L78 Accepts]: Start accepts. Automaton has 1991 states and 4967 transitions. Word has length 137 [2022-01-17 23:31:58,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:58,966 INFO L470 AbstractCegarLoop]: Abstraction has 1991 states and 4967 transitions. [2022-01-17 23:31:58,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:58,966 INFO L276 IsEmpty]: Start isEmpty. Operand 1991 states and 4967 transitions. [2022-01-17 23:31:58,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:31:58,968 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:58,968 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:58,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable251 [2022-01-17 23:31:58,968 INFO L402 AbstractCegarLoop]: === Iteration 253 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:31:58,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:58,968 INFO L85 PathProgramCache]: Analyzing trace with hash 320274959, now seen corresponding path program 209 times [2022-01-17 23:31:58,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:58,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483945079] [2022-01-17 23:31:58,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:58,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:58,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:59,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:59,537 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:59,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483945079] [2022-01-17 23:31:59,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483945079] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:59,538 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:59,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:31:59,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124172388] [2022-01-17 23:31:59,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:59,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:31:59,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:59,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:31:59,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=730, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:31:59,540 INFO L87 Difference]: Start difference. First operand 1991 states and 4967 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:01,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:32:01,097 INFO L93 Difference]: Finished difference Result 2146 states and 5260 transitions. [2022-01-17 23:32:01,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-17 23:32:01,098 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:32:01,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:32:01,100 INFO L225 Difference]: With dead ends: 2146 [2022-01-17 23:32:01,100 INFO L226 Difference]: Without dead ends: 2037 [2022-01-17 23:32:01,101 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 599 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=547, Invalid=2533, Unknown=0, NotChecked=0, Total=3080 [2022-01-17 23:32:01,101 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 1011 mSDsluCounter, 1810 mSDsCounter, 0 mSdLazyCounter, 961 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1011 SdHoareTripleChecker+Valid, 1914 SdHoareTripleChecker+Invalid, 1058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 961 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:32:01,101 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1011 Valid, 1914 Invalid, 1058 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 961 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:32:01,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2037 states. [2022-01-17 23:32:01,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2037 to 1993. [2022-01-17 23:32:01,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1993 states, 1992 states have (on average 2.494979919678715) internal successors, (4970), 1992 states have internal predecessors, (4970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:01,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1993 states to 1993 states and 4970 transitions. [2022-01-17 23:32:01,117 INFO L78 Accepts]: Start accepts. Automaton has 1993 states and 4970 transitions. Word has length 137 [2022-01-17 23:32:01,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:32:01,117 INFO L470 AbstractCegarLoop]: Abstraction has 1993 states and 4970 transitions. [2022-01-17 23:32:01,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:01,117 INFO L276 IsEmpty]: Start isEmpty. Operand 1993 states and 4970 transitions. [2022-01-17 23:32:01,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:32:01,119 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:32:01,119 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:32:01,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable252 [2022-01-17 23:32:01,120 INFO L402 AbstractCegarLoop]: === Iteration 254 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:32:01,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:32:01,120 INFO L85 PathProgramCache]: Analyzing trace with hash -242242237, now seen corresponding path program 210 times [2022-01-17 23:32:01,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:32:01,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934786745] [2022-01-17 23:32:01,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:32:01,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:32:01,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:32:01,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:32:01,816 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:32:01,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934786745] [2022-01-17 23:32:01,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934786745] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:32:01,816 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:32:01,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:32:01,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020443629] [2022-01-17 23:32:01,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:32:01,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:32:01,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:32:01,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:32:01,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=730, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:32:01,817 INFO L87 Difference]: Start difference. First operand 1993 states and 4970 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:03,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:32:03,955 INFO L93 Difference]: Finished difference Result 2102 states and 5164 transitions. [2022-01-17 23:32:03,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:32:03,956 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:32:03,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:32:03,958 INFO L225 Difference]: With dead ends: 2102 [2022-01-17 23:32:03,958 INFO L226 Difference]: Without dead ends: 1993 [2022-01-17 23:32:03,958 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 566 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=538, Invalid=2432, Unknown=0, NotChecked=0, Total=2970 [2022-01-17 23:32:03,958 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 891 mSDsluCounter, 2392 mSDsCounter, 0 mSdLazyCounter, 1317 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 891 SdHoareTripleChecker+Valid, 2479 SdHoareTripleChecker+Invalid, 1398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:32:03,958 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [891 Valid, 2479 Invalid, 1398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1317 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:32:03,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1993 states. [2022-01-17 23:32:03,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1993 to 1985. [2022-01-17 23:32:03,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1985 states, 1984 states have (on average 2.495967741935484) internal successors, (4952), 1984 states have internal predecessors, (4952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:03,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1985 states to 1985 states and 4952 transitions. [2022-01-17 23:32:03,975 INFO L78 Accepts]: Start accepts. Automaton has 1985 states and 4952 transitions. Word has length 137 [2022-01-17 23:32:03,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:32:03,975 INFO L470 AbstractCegarLoop]: Abstraction has 1985 states and 4952 transitions. [2022-01-17 23:32:03,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:03,975 INFO L276 IsEmpty]: Start isEmpty. Operand 1985 states and 4952 transitions. [2022-01-17 23:32:03,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:32:03,976 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:32:03,976 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:32:03,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable253 [2022-01-17 23:32:03,977 INFO L402 AbstractCegarLoop]: === Iteration 255 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:32:03,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:32:03,978 INFO L85 PathProgramCache]: Analyzing trace with hash 7263999, now seen corresponding path program 211 times [2022-01-17 23:32:03,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:32:03,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160158867] [2022-01-17 23:32:03,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:32:03,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:32:04,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:32:04,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:32:04,903 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:32:04,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160158867] [2022-01-17 23:32:04,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160158867] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:32:04,903 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:32:04,903 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-17 23:32:04,903 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827874930] [2022-01-17 23:32:04,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:32:04,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-17 23:32:04,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:32:04,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-17 23:32:04,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=1013, Unknown=0, NotChecked=0, Total=1122 [2022-01-17 23:32:04,904 INFO L87 Difference]: Start difference. First operand 1985 states and 4952 transitions. Second operand has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:07,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:32:07,475 INFO L93 Difference]: Finished difference Result 2156 states and 5277 transitions. [2022-01-17 23:32:07,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-17 23:32:07,475 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:32:07,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:32:07,477 INFO L225 Difference]: With dead ends: 2156 [2022-01-17 23:32:07,477 INFO L226 Difference]: Without dead ends: 2047 [2022-01-17 23:32:07,478 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 868 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=700, Invalid=3460, Unknown=0, NotChecked=0, Total=4160 [2022-01-17 23:32:07,478 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 1056 mSDsluCounter, 2397 mSDsCounter, 0 mSdLazyCounter, 1328 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1056 SdHoareTripleChecker+Valid, 2483 SdHoareTripleChecker+Invalid, 1428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:32:07,478 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1056 Valid, 2483 Invalid, 1428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1328 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:32:07,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2047 states. [2022-01-17 23:32:07,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2047 to 1995. [2022-01-17 23:32:07,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1995 states, 1994 states have (on average 2.4949849548645937) internal successors, (4975), 1994 states have internal predecessors, (4975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:07,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1995 states to 1995 states and 4975 transitions. [2022-01-17 23:32:07,494 INFO L78 Accepts]: Start accepts. Automaton has 1995 states and 4975 transitions. Word has length 137 [2022-01-17 23:32:07,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:32:07,494 INFO L470 AbstractCegarLoop]: Abstraction has 1995 states and 4975 transitions. [2022-01-17 23:32:07,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:07,498 INFO L276 IsEmpty]: Start isEmpty. Operand 1995 states and 4975 transitions. [2022-01-17 23:32:07,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:32:07,500 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:32:07,501 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:32:07,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable254 [2022-01-17 23:32:07,502 INFO L402 AbstractCegarLoop]: === Iteration 256 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:32:07,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:32:07,508 INFO L85 PathProgramCache]: Analyzing trace with hash -555253197, now seen corresponding path program 212 times [2022-01-17 23:32:07,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:32:07,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016597022] [2022-01-17 23:32:07,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:32:07,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:32:07,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:32:08,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:32:08,351 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:32:08,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016597022] [2022-01-17 23:32:08,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016597022] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:32:08,351 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:32:08,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-17 23:32:08,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654818004] [2022-01-17 23:32:08,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:32:08,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-17 23:32:08,352 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:32:08,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-17 23:32:08,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=840, Unknown=0, NotChecked=0, Total=930 [2022-01-17 23:32:08,352 INFO L87 Difference]: Start difference. First operand 1995 states and 4975 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:10,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:32:10,424 INFO L93 Difference]: Finished difference Result 2116 states and 5187 transitions. [2022-01-17 23:32:10,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:32:10,425 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:32:10,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:32:10,427 INFO L225 Difference]: With dead ends: 2116 [2022-01-17 23:32:10,427 INFO L226 Difference]: Without dead ends: 2013 [2022-01-17 23:32:10,428 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 640 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=562, Invalid=2630, Unknown=0, NotChecked=0, Total=3192 [2022-01-17 23:32:10,428 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 1198 mSDsluCounter, 1882 mSDsCounter, 0 mSdLazyCounter, 1056 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1198 SdHoareTripleChecker+Valid, 1977 SdHoareTripleChecker+Invalid, 1165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 1056 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:32:10,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1198 Valid, 1977 Invalid, 1165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 1056 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:32:10,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2013 states. [2022-01-17 23:32:10,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2013 to 1993. [2022-01-17 23:32:10,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1993 states, 1992 states have (on average 2.494979919678715) internal successors, (4970), 1992 states have internal predecessors, (4970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:10,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1993 states to 1993 states and 4970 transitions. [2022-01-17 23:32:10,444 INFO L78 Accepts]: Start accepts. Automaton has 1993 states and 4970 transitions. Word has length 137 [2022-01-17 23:32:10,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:32:10,445 INFO L470 AbstractCegarLoop]: Abstraction has 1993 states and 4970 transitions. [2022-01-17 23:32:10,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:10,445 INFO L276 IsEmpty]: Start isEmpty. Operand 1993 states and 4970 transitions. [2022-01-17 23:32:10,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:32:10,447 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:32:10,447 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:32:10,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable255 [2022-01-17 23:32:10,447 INFO L402 AbstractCegarLoop]: === Iteration 257 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:32:10,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:32:10,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1415214875, now seen corresponding path program 213 times [2022-01-17 23:32:10,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:32:10,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912728901] [2022-01-17 23:32:10,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:32:10,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:32:10,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:32:11,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:32:11,253 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:32:11,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912728901] [2022-01-17 23:32:11,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912728901] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:32:11,253 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:32:11,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:32:11,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535696343] [2022-01-17 23:32:11,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:32:11,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:32:11,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:32:11,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:32:11,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=730, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:32:11,254 INFO L87 Difference]: Start difference. First operand 1993 states and 4970 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:13,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:32:13,330 INFO L93 Difference]: Finished difference Result 2114 states and 5182 transitions. [2022-01-17 23:32:13,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:32:13,330 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:32:13,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:32:13,332 INFO L225 Difference]: With dead ends: 2114 [2022-01-17 23:32:13,332 INFO L226 Difference]: Without dead ends: 1983 [2022-01-17 23:32:13,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 541 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=516, Invalid=2346, Unknown=0, NotChecked=0, Total=2862 [2022-01-17 23:32:13,333 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 912 mSDsluCounter, 2139 mSDsCounter, 0 mSdLazyCounter, 1249 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 912 SdHoareTripleChecker+Valid, 2230 SdHoareTripleChecker+Invalid, 1339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 1249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:32:13,333 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [912 Valid, 2230 Invalid, 1339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 1249 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:32:13,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1983 states. [2022-01-17 23:32:13,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1983 to 1971. [2022-01-17 23:32:13,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1971 states, 1970 states have (on average 2.4893401015228425) internal successors, (4904), 1970 states have internal predecessors, (4904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:13,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1971 states to 1971 states and 4904 transitions. [2022-01-17 23:32:13,350 INFO L78 Accepts]: Start accepts. Automaton has 1971 states and 4904 transitions. Word has length 137 [2022-01-17 23:32:13,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:32:13,350 INFO L470 AbstractCegarLoop]: Abstraction has 1971 states and 4904 transitions. [2022-01-17 23:32:13,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:13,350 INFO L276 IsEmpty]: Start isEmpty. Operand 1971 states and 4904 transitions. [2022-01-17 23:32:13,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:32:13,351 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:32:13,352 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:32:13,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable256 [2022-01-17 23:32:13,352 INFO L402 AbstractCegarLoop]: === Iteration 258 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:32:13,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:32:13,352 INFO L85 PathProgramCache]: Analyzing trace with hash -687142619, now seen corresponding path program 214 times [2022-01-17 23:32:13,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:32:13,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376170420] [2022-01-17 23:32:13,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:32:13,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:32:13,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:32:13,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:32:13,931 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:32:13,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376170420] [2022-01-17 23:32:13,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376170420] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:32:13,932 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:32:13,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:32:13,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260746971] [2022-01-17 23:32:13,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:32:13,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:32:13,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:32:13,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:32:13,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=729, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:32:13,932 INFO L87 Difference]: Start difference. First operand 1971 states and 4904 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:15,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:32:15,571 INFO L93 Difference]: Finished difference Result 2162 states and 5281 transitions. [2022-01-17 23:32:15,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-17 23:32:15,571 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:32:15,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:32:15,574 INFO L225 Difference]: With dead ends: 2162 [2022-01-17 23:32:15,574 INFO L226 Difference]: Without dead ends: 2023 [2022-01-17 23:32:15,575 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 660 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=591, Invalid=2715, Unknown=0, NotChecked=0, Total=3306 [2022-01-17 23:32:15,575 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 1323 mSDsluCounter, 2289 mSDsCounter, 0 mSdLazyCounter, 1126 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1323 SdHoareTripleChecker+Valid, 2396 SdHoareTripleChecker+Invalid, 1238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 1126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:32:15,575 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1323 Valid, 2396 Invalid, 1238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 1126 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:32:15,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2023 states. [2022-01-17 23:32:15,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2023 to 1971. [2022-01-17 23:32:15,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1971 states, 1970 states have (on average 2.4862944162436547) internal successors, (4898), 1970 states have internal predecessors, (4898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:15,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1971 states to 1971 states and 4898 transitions. [2022-01-17 23:32:15,591 INFO L78 Accepts]: Start accepts. Automaton has 1971 states and 4898 transitions. Word has length 137 [2022-01-17 23:32:15,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:32:15,591 INFO L470 AbstractCegarLoop]: Abstraction has 1971 states and 4898 transitions. [2022-01-17 23:32:15,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:15,591 INFO L276 IsEmpty]: Start isEmpty. Operand 1971 states and 4898 transitions. [2022-01-17 23:32:15,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:32:15,593 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:32:15,593 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:32:15,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable257 [2022-01-17 23:32:15,593 INFO L402 AbstractCegarLoop]: === Iteration 259 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:32:15,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:32:15,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1136194127, now seen corresponding path program 215 times [2022-01-17 23:32:15,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:32:15,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111475912] [2022-01-17 23:32:15,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:32:15,594 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:32:15,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:32:16,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:32:16,208 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:32:16,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111475912] [2022-01-17 23:32:16,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111475912] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:32:16,209 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:32:16,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:32:16,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62243004] [2022-01-17 23:32:16,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:32:16,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:32:16,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:32:16,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:32:16,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=729, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:32:16,209 INFO L87 Difference]: Start difference. First operand 1971 states and 4898 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:18,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:32:18,513 INFO L93 Difference]: Finished difference Result 2130 states and 5199 transitions. [2022-01-17 23:32:18,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-17 23:32:18,513 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:32:18,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:32:18,515 INFO L225 Difference]: With dead ends: 2130 [2022-01-17 23:32:18,515 INFO L226 Difference]: Without dead ends: 2021 [2022-01-17 23:32:18,516 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 653 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=599, Invalid=2707, Unknown=0, NotChecked=0, Total=3306 [2022-01-17 23:32:18,516 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 1246 mSDsluCounter, 2467 mSDsCounter, 0 mSdLazyCounter, 1232 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1246 SdHoareTripleChecker+Valid, 2566 SdHoareTripleChecker+Invalid, 1339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 1232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:32:18,516 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1246 Valid, 2566 Invalid, 1339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 1232 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:32:18,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2021 states. [2022-01-17 23:32:18,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2021 to 1973. [2022-01-17 23:32:18,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1973 states, 1972 states have (on average 2.485294117647059) internal successors, (4901), 1972 states have internal predecessors, (4901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:18,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1973 states to 1973 states and 4901 transitions. [2022-01-17 23:32:18,532 INFO L78 Accepts]: Start accepts. Automaton has 1973 states and 4901 transitions. Word has length 137 [2022-01-17 23:32:18,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:32:18,532 INFO L470 AbstractCegarLoop]: Abstraction has 1973 states and 4901 transitions. [2022-01-17 23:32:18,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:18,532 INFO L276 IsEmpty]: Start isEmpty. Operand 1973 states and 4901 transitions. [2022-01-17 23:32:18,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:32:18,534 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:32:18,534 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:32:18,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable258 [2022-01-17 23:32:18,534 INFO L402 AbstractCegarLoop]: === Iteration 260 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:32:18,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:32:18,535 INFO L85 PathProgramCache]: Analyzing trace with hash 573676931, now seen corresponding path program 216 times [2022-01-17 23:32:18,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:32:18,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232861174] [2022-01-17 23:32:18,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:32:18,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:32:18,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:32:19,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:32:19,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:32:19,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232861174] [2022-01-17 23:32:19,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232861174] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:32:19,286 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:32:19,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:32:19,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374837967] [2022-01-17 23:32:19,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:32:19,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:32:19,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:32:19,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:32:19,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=729, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:32:19,287 INFO L87 Difference]: Start difference. First operand 1973 states and 4901 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:20,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:32:20,963 INFO L93 Difference]: Finished difference Result 2086 states and 5103 transitions. [2022-01-17 23:32:20,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-17 23:32:20,963 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:32:20,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:32:20,965 INFO L225 Difference]: With dead ends: 2086 [2022-01-17 23:32:20,965 INFO L226 Difference]: Without dead ends: 1977 [2022-01-17 23:32:20,966 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 644 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=613, Invalid=2693, Unknown=0, NotChecked=0, Total=3306 [2022-01-17 23:32:20,966 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 977 mSDsluCounter, 2040 mSDsCounter, 0 mSdLazyCounter, 1035 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 977 SdHoareTripleChecker+Valid, 2151 SdHoareTripleChecker+Invalid, 1124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 1035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:32:20,966 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [977 Valid, 2151 Invalid, 1124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 1035 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:32:20,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1977 states. [2022-01-17 23:32:20,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1977 to 1965. [2022-01-17 23:32:20,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1965 states, 1964 states have (on average 2.4877800407331976) internal successors, (4886), 1964 states have internal predecessors, (4886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:20,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1965 states to 1965 states and 4886 transitions. [2022-01-17 23:32:20,981 INFO L78 Accepts]: Start accepts. Automaton has 1965 states and 4886 transitions. Word has length 137 [2022-01-17 23:32:20,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:32:20,982 INFO L470 AbstractCegarLoop]: Abstraction has 1965 states and 4886 transitions. [2022-01-17 23:32:20,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:20,982 INFO L276 IsEmpty]: Start isEmpty. Operand 1965 states and 4886 transitions. [2022-01-17 23:32:20,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:32:20,983 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:32:20,983 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:32:20,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable259 [2022-01-17 23:32:20,984 INFO L402 AbstractCegarLoop]: === Iteration 261 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:32:20,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:32:20,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1135174821, now seen corresponding path program 217 times [2022-01-17 23:32:20,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:32:20,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18850121] [2022-01-17 23:32:20,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:32:20,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:32:21,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:32:21,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:32:21,539 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:32:21,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18850121] [2022-01-17 23:32:21,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18850121] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:32:21,539 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:32:21,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:32:21,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295869293] [2022-01-17 23:32:21,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:32:21,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:32:21,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:32:21,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:32:21,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=727, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:32:21,540 INFO L87 Difference]: Start difference. First operand 1965 states and 4886 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:23,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:32:23,734 INFO L93 Difference]: Finished difference Result 2118 states and 5178 transitions. [2022-01-17 23:32:23,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-17 23:32:23,735 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:32:23,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:32:23,737 INFO L225 Difference]: With dead ends: 2118 [2022-01-17 23:32:23,737 INFO L226 Difference]: Without dead ends: 1979 [2022-01-17 23:32:23,737 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 641 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=571, Invalid=2621, Unknown=0, NotChecked=0, Total=3192 [2022-01-17 23:32:23,738 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 1408 mSDsluCounter, 2595 mSDsCounter, 0 mSdLazyCounter, 1318 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1408 SdHoareTripleChecker+Valid, 2710 SdHoareTripleChecker+Invalid, 1440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 1318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:32:23,738 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1408 Valid, 2710 Invalid, 1440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 1318 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:32:23,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1979 states. [2022-01-17 23:32:23,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1979 to 1935. [2022-01-17 23:32:23,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1935 states, 1934 states have (on average 2.4829369183040333) internal successors, (4802), 1934 states have internal predecessors, (4802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:23,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1935 states to 1935 states and 4802 transitions. [2022-01-17 23:32:23,754 INFO L78 Accepts]: Start accepts. Automaton has 1935 states and 4802 transitions. Word has length 137 [2022-01-17 23:32:23,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:32:23,754 INFO L470 AbstractCegarLoop]: Abstraction has 1935 states and 4802 transitions. [2022-01-17 23:32:23,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:23,754 INFO L276 IsEmpty]: Start isEmpty. Operand 1935 states and 4802 transitions. [2022-01-17 23:32:23,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:32:23,756 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:32:23,756 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:32:23,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable260 [2022-01-17 23:32:23,756 INFO L402 AbstractCegarLoop]: === Iteration 262 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:32:23,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:32:23,756 INFO L85 PathProgramCache]: Analyzing trace with hash 485908069, now seen corresponding path program 218 times [2022-01-17 23:32:23,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:32:23,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375381788] [2022-01-17 23:32:23,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:32:23,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:32:23,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:32:24,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:32:24,325 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:32:24,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375381788] [2022-01-17 23:32:24,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375381788] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:32:24,325 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:32:24,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:32:24,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21826391] [2022-01-17 23:32:24,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:32:24,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:32:24,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:32:24,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:32:24,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=726, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:32:24,328 INFO L87 Difference]: Start difference. First operand 1935 states and 4802 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:26,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:32:26,270 INFO L93 Difference]: Finished difference Result 2386 states and 5883 transitions. [2022-01-17 23:32:26,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-17 23:32:26,271 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:32:26,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:32:26,273 INFO L225 Difference]: With dead ends: 2386 [2022-01-17 23:32:26,273 INFO L226 Difference]: Without dead ends: 2277 [2022-01-17 23:32:26,274 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 642 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=572, Invalid=2620, Unknown=0, NotChecked=0, Total=3192 [2022-01-17 23:32:26,287 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 1079 mSDsluCounter, 2830 mSDsCounter, 0 mSdLazyCounter, 1379 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1079 SdHoareTripleChecker+Valid, 2953 SdHoareTripleChecker+Invalid, 1473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:32:26,287 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1079 Valid, 2953 Invalid, 1473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 1379 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:32:26,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2277 states. [2022-01-17 23:32:26,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2277 to 2005. [2022-01-17 23:32:26,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2005 states, 2004 states have (on average 2.491516966067864) internal successors, (4993), 2004 states have internal predecessors, (4993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:26,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2005 states to 2005 states and 4993 transitions. [2022-01-17 23:32:26,305 INFO L78 Accepts]: Start accepts. Automaton has 2005 states and 4993 transitions. Word has length 137 [2022-01-17 23:32:26,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:32:26,305 INFO L470 AbstractCegarLoop]: Abstraction has 2005 states and 4993 transitions. [2022-01-17 23:32:26,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:26,305 INFO L276 IsEmpty]: Start isEmpty. Operand 2005 states and 4993 transitions. [2022-01-17 23:32:26,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:32:26,307 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:32:26,307 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:32:26,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable261 [2022-01-17 23:32:26,307 INFO L402 AbstractCegarLoop]: === Iteration 263 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:32:26,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:32:26,307 INFO L85 PathProgramCache]: Analyzing trace with hash 858290149, now seen corresponding path program 219 times [2022-01-17 23:32:26,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:32:26,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026957684] [2022-01-17 23:32:26,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:32:26,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:32:26,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:32:27,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:32:27,004 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:32:27,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026957684] [2022-01-17 23:32:27,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026957684] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:32:27,004 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:32:27,004 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:32:27,004 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029409243] [2022-01-17 23:32:27,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:32:27,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:32:27,005 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:32:27,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:32:27,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:32:27,005 INFO L87 Difference]: Start difference. First operand 2005 states and 4993 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:29,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:32:29,313 INFO L93 Difference]: Finished difference Result 2348 states and 5797 transitions. [2022-01-17 23:32:29,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-17 23:32:29,313 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:32:29,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:32:29,316 INFO L225 Difference]: With dead ends: 2348 [2022-01-17 23:32:29,316 INFO L226 Difference]: Without dead ends: 2249 [2022-01-17 23:32:29,316 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 637 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=571, Invalid=2621, Unknown=0, NotChecked=0, Total=3192 [2022-01-17 23:32:29,316 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 1336 mSDsluCounter, 2617 mSDsCounter, 0 mSdLazyCounter, 1238 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1336 SdHoareTripleChecker+Valid, 2758 SdHoareTripleChecker+Invalid, 1350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 1238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:32:29,316 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1336 Valid, 2758 Invalid, 1350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 1238 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:32:29,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2249 states. [2022-01-17 23:32:29,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2249 to 2201. [2022-01-17 23:32:29,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2201 states, 2200 states have (on average 2.492272727272727) internal successors, (5483), 2200 states have internal predecessors, (5483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:29,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2201 states to 2201 states and 5483 transitions. [2022-01-17 23:32:29,334 INFO L78 Accepts]: Start accepts. Automaton has 2201 states and 5483 transitions. Word has length 137 [2022-01-17 23:32:29,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:32:29,334 INFO L470 AbstractCegarLoop]: Abstraction has 2201 states and 5483 transitions. [2022-01-17 23:32:29,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:29,334 INFO L276 IsEmpty]: Start isEmpty. Operand 2201 states and 5483 transitions. [2022-01-17 23:32:29,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:32:29,336 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:32:29,336 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:32:29,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable262 [2022-01-17 23:32:29,336 INFO L402 AbstractCegarLoop]: === Iteration 264 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:32:29,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:32:29,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1092618213, now seen corresponding path program 220 times [2022-01-17 23:32:29,337 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:32:29,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802795909] [2022-01-17 23:32:29,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:32:29,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:32:29,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:32:30,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:32:30,005 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:32:30,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802795909] [2022-01-17 23:32:30,006 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802795909] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:32:30,006 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:32:30,006 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-17 23:32:30,006 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169588995] [2022-01-17 23:32:30,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:32:30,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-17 23:32:30,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:32:30,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-17 23:32:30,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=829, Unknown=0, NotChecked=0, Total=930 [2022-01-17 23:32:30,006 INFO L87 Difference]: Start difference. First operand 2201 states and 5483 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:31,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:32:31,639 INFO L93 Difference]: Finished difference Result 2557 states and 6297 transitions. [2022-01-17 23:32:31,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-17 23:32:31,639 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:32:31,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:32:31,643 INFO L225 Difference]: With dead ends: 2557 [2022-01-17 23:32:31,643 INFO L226 Difference]: Without dead ends: 2282 [2022-01-17 23:32:31,644 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 659 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=595, Invalid=2827, Unknown=0, NotChecked=0, Total=3422 [2022-01-17 23:32:31,644 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 1367 mSDsluCounter, 2737 mSDsCounter, 0 mSdLazyCounter, 1135 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1367 SdHoareTripleChecker+Valid, 2906 SdHoareTripleChecker+Invalid, 1248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:32:31,644 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1367 Valid, 2906 Invalid, 1248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1135 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:32:31,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2282 states. [2022-01-17 23:32:31,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2282 to 2243. [2022-01-17 23:32:31,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2243 states, 2242 states have (on average 2.476806422836753) internal successors, (5553), 2242 states have internal predecessors, (5553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:31,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2243 states to 2243 states and 5553 transitions. [2022-01-17 23:32:31,671 INFO L78 Accepts]: Start accepts. Automaton has 2243 states and 5553 transitions. Word has length 137 [2022-01-17 23:32:31,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:32:31,672 INFO L470 AbstractCegarLoop]: Abstraction has 2243 states and 5553 transitions. [2022-01-17 23:32:31,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:31,672 INFO L276 IsEmpty]: Start isEmpty. Operand 2243 states and 5553 transitions. [2022-01-17 23:32:31,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:32:31,674 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:32:31,675 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:32:31,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable263 [2022-01-17 23:32:31,675 INFO L402 AbstractCegarLoop]: === Iteration 265 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:32:31,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:32:31,675 INFO L85 PathProgramCache]: Analyzing trace with hash 2037810243, now seen corresponding path program 221 times [2022-01-17 23:32:31,675 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:32:31,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104168615] [2022-01-17 23:32:31,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:32:31,675 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:32:31,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:32:32,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:32:32,401 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:32:32,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104168615] [2022-01-17 23:32:32,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104168615] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:32:32,401 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:32:32,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-17 23:32:32,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69886526] [2022-01-17 23:32:32,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:32:32,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-17 23:32:32,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:32:32,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-17 23:32:32,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2022-01-17 23:32:32,402 INFO L87 Difference]: Start difference. First operand 2243 states and 5553 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:34,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:32:34,516 INFO L93 Difference]: Finished difference Result 2314 states and 5670 transitions. [2022-01-17 23:32:34,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-17 23:32:34,516 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:32:34,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:32:34,518 INFO L225 Difference]: With dead ends: 2314 [2022-01-17 23:32:34,518 INFO L226 Difference]: Without dead ends: 1725 [2022-01-17 23:32:34,518 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 544 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=525, Invalid=2445, Unknown=0, NotChecked=0, Total=2970 [2022-01-17 23:32:34,518 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 1329 mSDsluCounter, 2671 mSDsCounter, 0 mSdLazyCounter, 1150 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1329 SdHoareTripleChecker+Valid, 2822 SdHoareTripleChecker+Invalid, 1258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:32:34,518 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1329 Valid, 2822 Invalid, 1258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1150 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:32:34,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1725 states. [2022-01-17 23:32:34,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1725 to 1725. [2022-01-17 23:32:34,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1725 states, 1724 states have (on average 2.4286542923433876) internal successors, (4187), 1724 states have internal predecessors, (4187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:34,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1725 states to 1725 states and 4187 transitions. [2022-01-17 23:32:34,532 INFO L78 Accepts]: Start accepts. Automaton has 1725 states and 4187 transitions. Word has length 137 [2022-01-17 23:32:34,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:32:34,532 INFO L470 AbstractCegarLoop]: Abstraction has 1725 states and 4187 transitions. [2022-01-17 23:32:34,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:34,532 INFO L276 IsEmpty]: Start isEmpty. Operand 1725 states and 4187 transitions. [2022-01-17 23:32:34,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:32:34,533 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:32:34,534 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:32:34,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable264 [2022-01-17 23:32:34,534 INFO L402 AbstractCegarLoop]: === Iteration 266 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:32:34,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:32:34,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1510828017, now seen corresponding path program 222 times [2022-01-17 23:32:34,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:32:34,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196561272] [2022-01-17 23:32:34,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:32:34,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:32:34,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:32:35,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:32:35,089 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:32:35,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196561272] [2022-01-17 23:32:35,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196561272] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:32:35,089 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:32:35,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:32:35,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4233962] [2022-01-17 23:32:35,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:32:35,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:32:35,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:32:35,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:32:35,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=728, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:32:35,089 INFO L87 Difference]: Start difference. First operand 1725 states and 4187 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:37,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:32:37,352 INFO L93 Difference]: Finished difference Result 1932 states and 4612 transitions. [2022-01-17 23:32:37,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-17 23:32:37,353 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:32:37,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:32:37,355 INFO L225 Difference]: With dead ends: 1932 [2022-01-17 23:32:37,355 INFO L226 Difference]: Without dead ends: 1823 [2022-01-17 23:32:37,355 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 657 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=598, Invalid=2708, Unknown=0, NotChecked=0, Total=3306 [2022-01-17 23:32:37,355 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 994 mSDsluCounter, 2302 mSDsCounter, 0 mSdLazyCounter, 1090 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 994 SdHoareTripleChecker+Valid, 2419 SdHoareTripleChecker+Invalid, 1189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1090 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:32:37,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [994 Valid, 2419 Invalid, 1189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1090 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:32:37,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1823 states. [2022-01-17 23:32:37,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1823 to 1741. [2022-01-17 23:32:37,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1741 states, 1740 states have (on average 2.432183908045977) internal successors, (4232), 1740 states have internal predecessors, (4232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:37,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1741 states to 1741 states and 4232 transitions. [2022-01-17 23:32:37,372 INFO L78 Accepts]: Start accepts. Automaton has 1741 states and 4232 transitions. Word has length 137 [2022-01-17 23:32:37,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:32:37,372 INFO L470 AbstractCegarLoop]: Abstraction has 1741 states and 4232 transitions. [2022-01-17 23:32:37,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:37,372 INFO L276 IsEmpty]: Start isEmpty. Operand 1741 states and 4232 transitions. [2022-01-17 23:32:37,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:32:37,374 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:32:37,374 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:32:37,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable265 [2022-01-17 23:32:37,374 INFO L402 AbstractCegarLoop]: === Iteration 267 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:32:37,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:32:37,374 INFO L85 PathProgramCache]: Analyzing trace with hash -2073345213, now seen corresponding path program 223 times [2022-01-17 23:32:37,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:32:37,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670504154] [2022-01-17 23:32:37,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:32:37,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:32:37,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:32:37,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:32:37,934 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:32:37,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670504154] [2022-01-17 23:32:37,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670504154] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:32:37,934 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:32:37,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:32:37,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938740847] [2022-01-17 23:32:37,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:32:37,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:32:37,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:32:37,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:32:37,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=728, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:32:37,935 INFO L87 Difference]: Start difference. First operand 1741 states and 4232 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:39,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:32:39,771 INFO L93 Difference]: Finished difference Result 1892 states and 4522 transitions. [2022-01-17 23:32:39,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-17 23:32:39,771 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:32:39,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:32:39,773 INFO L225 Difference]: With dead ends: 1892 [2022-01-17 23:32:39,773 INFO L226 Difference]: Without dead ends: 1789 [2022-01-17 23:32:39,773 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 648 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=612, Invalid=2694, Unknown=0, NotChecked=0, Total=3306 [2022-01-17 23:32:39,774 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 940 mSDsluCounter, 2406 mSDsCounter, 0 mSdLazyCounter, 1164 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 940 SdHoareTripleChecker+Valid, 2517 SdHoareTripleChecker+Invalid, 1257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 1164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:32:39,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [940 Valid, 2517 Invalid, 1257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 1164 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:32:39,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1789 states. [2022-01-17 23:32:39,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1789 to 1739. [2022-01-17 23:32:39,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1739 states, 1738 states have (on average 2.432681242807825) internal successors, (4228), 1738 states have internal predecessors, (4228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:39,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1739 states to 1739 states and 4228 transitions. [2022-01-17 23:32:39,788 INFO L78 Accepts]: Start accepts. Automaton has 1739 states and 4228 transitions. Word has length 137 [2022-01-17 23:32:39,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:32:39,788 INFO L470 AbstractCegarLoop]: Abstraction has 1739 states and 4228 transitions. [2022-01-17 23:32:39,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:39,788 INFO L276 IsEmpty]: Start isEmpty. Operand 1739 states and 4228 transitions. [2022-01-17 23:32:39,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:32:39,790 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:32:39,790 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:32:39,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable266 [2022-01-17 23:32:39,790 INFO L402 AbstractCegarLoop]: === Iteration 268 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:32:39,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:32:39,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1180355727, now seen corresponding path program 224 times [2022-01-17 23:32:39,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:32:39,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545053690] [2022-01-17 23:32:39,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:32:39,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:32:39,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:32:40,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:32:40,423 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:32:40,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545053690] [2022-01-17 23:32:40,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545053690] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:32:40,423 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:32:40,423 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:32:40,423 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395105738] [2022-01-17 23:32:40,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:32:40,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:32:40,423 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:32:40,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:32:40,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=726, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:32:40,424 INFO L87 Difference]: Start difference. First operand 1739 states and 4228 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:42,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:32:42,186 INFO L93 Difference]: Finished difference Result 2240 states and 5411 transitions. [2022-01-17 23:32:42,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-17 23:32:42,187 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:32:42,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:32:42,189 INFO L225 Difference]: With dead ends: 2240 [2022-01-17 23:32:42,189 INFO L226 Difference]: Without dead ends: 2131 [2022-01-17 23:32:42,189 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 635 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=570, Invalid=2622, Unknown=0, NotChecked=0, Total=3192 [2022-01-17 23:32:42,189 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 1122 mSDsluCounter, 2194 mSDsCounter, 0 mSdLazyCounter, 1079 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1122 SdHoareTripleChecker+Valid, 2328 SdHoareTripleChecker+Invalid, 1192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1079 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:32:42,190 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1122 Valid, 2328 Invalid, 1192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1079 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:32:42,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2131 states. [2022-01-17 23:32:42,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2131 to 1809. [2022-01-17 23:32:42,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1809 states, 1808 states have (on average 2.444137168141593) internal successors, (4419), 1808 states have internal predecessors, (4419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:42,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1809 states to 1809 states and 4419 transitions. [2022-01-17 23:32:42,205 INFO L78 Accepts]: Start accepts. Automaton has 1809 states and 4419 transitions. Word has length 137 [2022-01-17 23:32:42,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:32:42,205 INFO L470 AbstractCegarLoop]: Abstraction has 1809 states and 4419 transitions. [2022-01-17 23:32:42,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:42,205 INFO L276 IsEmpty]: Start isEmpty. Operand 1809 states and 4419 transitions. [2022-01-17 23:32:42,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:32:42,207 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:32:42,207 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:32:42,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable267 [2022-01-17 23:32:42,207 INFO L402 AbstractCegarLoop]: === Iteration 269 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:32:42,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:32:42,207 INFO L85 PathProgramCache]: Analyzing trace with hash 738246287, now seen corresponding path program 225 times [2022-01-17 23:32:42,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:32:42,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533003301] [2022-01-17 23:32:42,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:32:42,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:32:42,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:32:42,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:32:42,760 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:32:42,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533003301] [2022-01-17 23:32:42,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533003301] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:32:42,760 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:32:42,760 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:32:42,760 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377581991] [2022-01-17 23:32:42,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:32:42,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:32:42,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:32:42,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:32:42,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:32:42,761 INFO L87 Difference]: Start difference. First operand 1809 states and 4419 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:44,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:32:44,741 INFO L93 Difference]: Finished difference Result 2440 states and 5941 transitions. [2022-01-17 23:32:44,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-17 23:32:44,742 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:32:44,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:32:44,744 INFO L225 Difference]: With dead ends: 2440 [2022-01-17 23:32:44,744 INFO L226 Difference]: Without dead ends: 2341 [2022-01-17 23:32:44,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 631 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=571, Invalid=2621, Unknown=0, NotChecked=0, Total=3192 [2022-01-17 23:32:44,745 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 1208 mSDsluCounter, 2289 mSDsCounter, 0 mSdLazyCounter, 1072 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1208 SdHoareTripleChecker+Valid, 2433 SdHoareTripleChecker+Invalid, 1200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 1072 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:32:44,745 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1208 Valid, 2433 Invalid, 1200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 1072 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:32:44,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2341 states. [2022-01-17 23:32:44,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2341 to 2005. [2022-01-17 23:32:44,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2005 states, 2004 states have (on average 2.4496007984031936) internal successors, (4909), 2004 states have internal predecessors, (4909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:44,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2005 states to 2005 states and 4909 transitions. [2022-01-17 23:32:44,762 INFO L78 Accepts]: Start accepts. Automaton has 2005 states and 4909 transitions. Word has length 137 [2022-01-17 23:32:44,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:32:44,763 INFO L470 AbstractCegarLoop]: Abstraction has 2005 states and 4909 transitions. [2022-01-17 23:32:44,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:44,763 INFO L276 IsEmpty]: Start isEmpty. Operand 2005 states and 4909 transitions. [2022-01-17 23:32:44,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:32:44,764 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:32:44,764 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:32:44,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable268 [2022-01-17 23:32:44,765 INFO L402 AbstractCegarLoop]: === Iteration 270 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:32:44,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:32:44,765 INFO L85 PathProgramCache]: Analyzing trace with hash 972574351, now seen corresponding path program 226 times [2022-01-17 23:32:44,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:32:44,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075974758] [2022-01-17 23:32:44,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:32:44,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:32:44,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:32:45,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:32:45,677 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:32:45,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075974758] [2022-01-17 23:32:45,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075974758] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:32:45,677 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:32:45,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2022-01-17 23:32:45,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627404223] [2022-01-17 23:32:45,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:32:45,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-01-17 23:32:45,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:32:45,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-01-17 23:32:45,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=884, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:32:45,678 INFO L87 Difference]: Start difference. First operand 2005 states and 4909 transitions. Second operand has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:47,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:32:47,970 INFO L93 Difference]: Finished difference Result 2649 states and 6441 transitions. [2022-01-17 23:32:47,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-17 23:32:47,970 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:32:47,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:32:47,973 INFO L225 Difference]: With dead ends: 2649 [2022-01-17 23:32:47,973 INFO L226 Difference]: Without dead ends: 2374 [2022-01-17 23:32:47,973 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 899 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=758, Invalid=3532, Unknown=0, NotChecked=0, Total=4290 [2022-01-17 23:32:47,973 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 1359 mSDsluCounter, 2700 mSDsCounter, 0 mSdLazyCounter, 1175 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1359 SdHoareTripleChecker+Valid, 2862 SdHoareTripleChecker+Invalid, 1316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 1175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:32:47,973 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1359 Valid, 2862 Invalid, 1316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 1175 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:32:47,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2374 states. [2022-01-17 23:32:47,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2374 to 2047. [2022-01-17 23:32:47,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2047 states, 2046 states have (on average 2.4335288367546433) internal successors, (4979), 2046 states have internal predecessors, (4979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:47,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2047 states to 2047 states and 4979 transitions. [2022-01-17 23:32:47,991 INFO L78 Accepts]: Start accepts. Automaton has 2047 states and 4979 transitions. Word has length 137 [2022-01-17 23:32:47,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:32:47,991 INFO L470 AbstractCegarLoop]: Abstraction has 2047 states and 4979 transitions. [2022-01-17 23:32:47,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:47,991 INFO L276 IsEmpty]: Start isEmpty. Operand 2047 states and 4979 transitions. [2022-01-17 23:32:47,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:32:47,993 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:32:47,993 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:32:47,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable269 [2022-01-17 23:32:47,993 INFO L402 AbstractCegarLoop]: === Iteration 271 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:32:47,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:32:47,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1917766381, now seen corresponding path program 227 times [2022-01-17 23:32:47,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:32:47,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970075493] [2022-01-17 23:32:47,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:32:47,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:32:48,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:32:48,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:32:48,746 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:32:48,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970075493] [2022-01-17 23:32:48,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970075493] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:32:48,746 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:32:48,746 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-17 23:32:48,746 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928749027] [2022-01-17 23:32:48,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:32:48,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-17 23:32:48,746 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:32:48,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-17 23:32:48,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=830, Unknown=0, NotChecked=0, Total=930 [2022-01-17 23:32:48,747 INFO L87 Difference]: Start difference. First operand 2047 states and 4979 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:50,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:32:50,430 INFO L93 Difference]: Finished difference Result 2406 states and 5814 transitions. [2022-01-17 23:32:50,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-17 23:32:50,430 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:32:50,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:32:50,433 INFO L225 Difference]: With dead ends: 2406 [2022-01-17 23:32:50,433 INFO L226 Difference]: Without dead ends: 2027 [2022-01-17 23:32:50,433 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 622 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=572, Invalid=2734, Unknown=0, NotChecked=0, Total=3306 [2022-01-17 23:32:50,434 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 1147 mSDsluCounter, 2693 mSDsCounter, 0 mSdLazyCounter, 1208 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1147 SdHoareTripleChecker+Valid, 2838 SdHoareTripleChecker+Invalid, 1316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:32:50,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1147 Valid, 2838 Invalid, 1316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1208 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:32:50,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2027 states. [2022-01-17 23:32:50,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2027 to 1739. [2022-01-17 23:32:50,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1739 states, 1738 states have (on average 2.424626006904488) internal successors, (4214), 1738 states have internal predecessors, (4214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:50,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1739 states to 1739 states and 4214 transitions. [2022-01-17 23:32:50,452 INFO L78 Accepts]: Start accepts. Automaton has 1739 states and 4214 transitions. Word has length 137 [2022-01-17 23:32:50,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:32:50,452 INFO L470 AbstractCegarLoop]: Abstraction has 1739 states and 4214 transitions. [2022-01-17 23:32:50,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:50,452 INFO L276 IsEmpty]: Start isEmpty. Operand 1739 states and 4214 transitions. [2022-01-17 23:32:50,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:32:50,454 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:32:50,454 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:32:50,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable270 [2022-01-17 23:32:50,454 INFO L402 AbstractCegarLoop]: === Iteration 272 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:32:50,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:32:50,454 INFO L85 PathProgramCache]: Analyzing trace with hash 17635779, now seen corresponding path program 228 times [2022-01-17 23:32:50,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:32:50,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952563943] [2022-01-17 23:32:50,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:32:50,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:32:50,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:32:51,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:32:51,132 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:32:51,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952563943] [2022-01-17 23:32:51,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952563943] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:32:51,132 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:32:51,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2022-01-17 23:32:51,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203173144] [2022-01-17 23:32:51,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:32:51,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-01-17 23:32:51,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:32:51,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-01-17 23:32:51,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=892, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:32:51,133 INFO L87 Difference]: Start difference. First operand 1739 states and 4214 transitions. Second operand has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:53,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:32:53,026 INFO L93 Difference]: Finished difference Result 1870 states and 4451 transitions. [2022-01-17 23:32:53,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-17 23:32:53,026 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:32:53,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:32:53,028 INFO L225 Difference]: With dead ends: 1870 [2022-01-17 23:32:53,028 INFO L226 Difference]: Without dead ends: 1769 [2022-01-17 23:32:53,029 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 929 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=770, Invalid=3520, Unknown=0, NotChecked=0, Total=4290 [2022-01-17 23:32:53,029 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 1335 mSDsluCounter, 2499 mSDsCounter, 0 mSdLazyCounter, 1273 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1335 SdHoareTripleChecker+Valid, 2619 SdHoareTripleChecker+Invalid, 1397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 1273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:32:53,029 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1335 Valid, 2619 Invalid, 1397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 1273 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:32:53,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1769 states. [2022-01-17 23:32:53,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1769 to 1753. [2022-01-17 23:32:53,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1753 states, 1752 states have (on average 2.420662100456621) internal successors, (4241), 1752 states have internal predecessors, (4241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:53,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1753 states to 1753 states and 4241 transitions. [2022-01-17 23:32:53,045 INFO L78 Accepts]: Start accepts. Automaton has 1753 states and 4241 transitions. Word has length 137 [2022-01-17 23:32:53,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:32:53,045 INFO L470 AbstractCegarLoop]: Abstraction has 1753 states and 4241 transitions. [2022-01-17 23:32:53,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:53,045 INFO L276 IsEmpty]: Start isEmpty. Operand 1753 states and 4241 transitions. [2022-01-17 23:32:53,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:32:53,047 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:32:53,047 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:32:53,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable271 [2022-01-17 23:32:53,047 INFO L402 AbstractCegarLoop]: === Iteration 273 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:32:53,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:32:53,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1351374147, now seen corresponding path program 229 times [2022-01-17 23:32:53,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:32:53,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250143991] [2022-01-17 23:32:53,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:32:53,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:32:53,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:32:53,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:32:53,742 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:32:53,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250143991] [2022-01-17 23:32:53,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250143991] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:32:53,742 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:32:53,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-17 23:32:53,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923659700] [2022-01-17 23:32:53,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:32:53,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-17 23:32:53,742 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:32:53,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-17 23:32:53,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1008, Unknown=0, NotChecked=0, Total=1122 [2022-01-17 23:32:53,743 INFO L87 Difference]: Start difference. First operand 1753 states and 4241 transitions. Second operand has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:55,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:32:55,813 INFO L93 Difference]: Finished difference Result 2096 states and 5045 transitions. [2022-01-17 23:32:55,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-17 23:32:55,813 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:32:55,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:32:55,816 INFO L225 Difference]: With dead ends: 2096 [2022-01-17 23:32:55,816 INFO L226 Difference]: Without dead ends: 1997 [2022-01-17 23:32:55,816 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 871 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=659, Invalid=3373, Unknown=0, NotChecked=0, Total=4032 [2022-01-17 23:32:55,816 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 1167 mSDsluCounter, 3021 mSDsCounter, 0 mSdLazyCounter, 1394 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1167 SdHoareTripleChecker+Valid, 3152 SdHoareTripleChecker+Invalid, 1508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 1394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:32:55,816 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1167 Valid, 3152 Invalid, 1508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 1394 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:32:55,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1997 states. [2022-01-17 23:32:55,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1997 to 1949. [2022-01-17 23:32:55,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1949 states, 1948 states have (on average 2.4286447638603694) internal successors, (4731), 1948 states have internal predecessors, (4731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:55,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1949 states to 1949 states and 4731 transitions. [2022-01-17 23:32:55,832 INFO L78 Accepts]: Start accepts. Automaton has 1949 states and 4731 transitions. Word has length 137 [2022-01-17 23:32:55,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:32:55,832 INFO L470 AbstractCegarLoop]: Abstraction has 1949 states and 4731 transitions. [2022-01-17 23:32:55,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:55,832 INFO L276 IsEmpty]: Start isEmpty. Operand 1949 states and 4731 transitions. [2022-01-17 23:32:55,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:32:55,834 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:32:55,834 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:32:55,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable272 [2022-01-17 23:32:55,834 INFO L402 AbstractCegarLoop]: === Iteration 274 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:32:55,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:32:55,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1559428291, now seen corresponding path program 230 times [2022-01-17 23:32:55,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:32:55,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425053829] [2022-01-17 23:32:55,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:32:55,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:32:55,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:32:56,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:32:56,466 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:32:56,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425053829] [2022-01-17 23:32:56,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425053829] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:32:56,466 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:32:56,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-17 23:32:56,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015067774] [2022-01-17 23:32:56,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:32:56,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-17 23:32:56,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:32:56,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-17 23:32:56,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=829, Unknown=0, NotChecked=0, Total=930 [2022-01-17 23:32:56,467 INFO L87 Difference]: Start difference. First operand 1949 states and 4731 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:58,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:32:58,320 INFO L93 Difference]: Finished difference Result 2305 states and 5545 transitions. [2022-01-17 23:32:58,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-17 23:32:58,320 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:32:58,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:32:58,322 INFO L225 Difference]: With dead ends: 2305 [2022-01-17 23:32:58,322 INFO L226 Difference]: Without dead ends: 2030 [2022-01-17 23:32:58,323 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 620 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=590, Invalid=2716, Unknown=0, NotChecked=0, Total=3306 [2022-01-17 23:32:58,323 INFO L933 BasicCegarLoop]: 221 mSDtfsCounter, 1124 mSDsluCounter, 2873 mSDsCounter, 0 mSdLazyCounter, 1158 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1124 SdHoareTripleChecker+Valid, 3036 SdHoareTripleChecker+Invalid, 1258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:32:58,323 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1124 Valid, 3036 Invalid, 1258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1158 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:32:58,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2030 states. [2022-01-17 23:32:58,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2030 to 1991. [2022-01-17 23:32:58,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1991 states, 1990 states have (on average 2.412562814070352) internal successors, (4801), 1990 states have internal predecessors, (4801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:58,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1991 states to 1991 states and 4801 transitions. [2022-01-17 23:32:58,339 INFO L78 Accepts]: Start accepts. Automaton has 1991 states and 4801 transitions. Word has length 137 [2022-01-17 23:32:58,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:32:58,339 INFO L470 AbstractCegarLoop]: Abstraction has 1991 states and 4801 transitions. [2022-01-17 23:32:58,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:58,339 INFO L276 IsEmpty]: Start isEmpty. Operand 1991 states and 4801 transitions. [2022-01-17 23:32:58,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:32:58,341 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:32:58,341 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:32:58,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable273 [2022-01-17 23:32:58,341 INFO L402 AbstractCegarLoop]: === Iteration 275 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:32:58,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:32:58,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1790346975, now seen corresponding path program 231 times [2022-01-17 23:32:58,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:32:58,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029519032] [2022-01-17 23:32:58,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:32:58,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:32:58,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:32:59,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:32:59,220 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:32:59,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029519032] [2022-01-17 23:32:59,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029519032] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:32:59,220 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:32:59,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-17 23:32:59,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667508381] [2022-01-17 23:32:59,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:32:59,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-17 23:32:59,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:32:59,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-17 23:32:59,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=830, Unknown=0, NotChecked=0, Total=930 [2022-01-17 23:32:59,221 INFO L87 Difference]: Start difference. First operand 1991 states and 4801 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:00,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:33:00,914 INFO L93 Difference]: Finished difference Result 2062 states and 4918 transitions. [2022-01-17 23:33:00,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:33:00,915 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:33:00,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:33:00,917 INFO L225 Difference]: With dead ends: 2062 [2022-01-17 23:33:00,917 INFO L226 Difference]: Without dead ends: 1683 [2022-01-17 23:33:00,917 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 591 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=560, Invalid=2632, Unknown=0, NotChecked=0, Total=3192 [2022-01-17 23:33:00,917 INFO L933 BasicCegarLoop]: 206 mSDtfsCounter, 1178 mSDsluCounter, 2785 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1178 SdHoareTripleChecker+Valid, 2931 SdHoareTripleChecker+Invalid, 1267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:33:00,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1178 Valid, 2931 Invalid, 1267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:33:00,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1683 states. [2022-01-17 23:33:00,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1683 to 1683. [2022-01-17 23:33:00,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1683 states, 1682 states have (on average 2.4161712247324614) internal successors, (4064), 1682 states have internal predecessors, (4064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:00,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1683 states to 1683 states and 4064 transitions. [2022-01-17 23:33:00,931 INFO L78 Accepts]: Start accepts. Automaton has 1683 states and 4064 transitions. Word has length 137 [2022-01-17 23:33:00,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:33:00,931 INFO L470 AbstractCegarLoop]: Abstraction has 1683 states and 4064 transitions. [2022-01-17 23:33:00,932 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:00,932 INFO L276 IsEmpty]: Start isEmpty. Operand 1683 states and 4064 transitions. [2022-01-17 23:33:00,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:33:00,933 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:33:00,933 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:33:00,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable274 [2022-01-17 23:33:00,933 INFO L402 AbstractCegarLoop]: === Iteration 276 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:33:00,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:33:00,933 INFO L85 PathProgramCache]: Analyzing trace with hash -446043841, now seen corresponding path program 232 times [2022-01-17 23:33:00,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:33:00,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943857401] [2022-01-17 23:33:00,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:33:00,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:33:00,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:33:01,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:33:01,689 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:33:01,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943857401] [2022-01-17 23:33:01,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943857401] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:33:01,689 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:33:01,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:33:01,690 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065674760] [2022-01-17 23:33:01,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:33:01,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:33:01,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:33:01,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:33:01,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=729, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:33:01,690 INFO L87 Difference]: Start difference. First operand 1683 states and 4064 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:03,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:33:03,833 INFO L93 Difference]: Finished difference Result 1834 states and 4347 transitions. [2022-01-17 23:33:03,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:33:03,833 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:33:03,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:33:03,835 INFO L225 Difference]: With dead ends: 1834 [2022-01-17 23:33:03,835 INFO L226 Difference]: Without dead ends: 1725 [2022-01-17 23:33:03,835 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 583 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=525, Invalid=2445, Unknown=0, NotChecked=0, Total=2970 [2022-01-17 23:33:03,835 INFO L933 BasicCegarLoop]: 160 mSDtfsCounter, 976 mSDsluCounter, 2331 mSDsCounter, 0 mSdLazyCounter, 1236 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 976 SdHoareTripleChecker+Valid, 2432 SdHoareTripleChecker+Invalid, 1326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 1236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:33:03,836 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [976 Valid, 2432 Invalid, 1326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 1236 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:33:03,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1725 states. [2022-01-17 23:33:03,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1725 to 1685. [2022-01-17 23:33:03,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1685 states, 1684 states have (on average 2.415083135391924) internal successors, (4067), 1684 states have internal predecessors, (4067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:03,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1685 states to 1685 states and 4067 transitions. [2022-01-17 23:33:03,849 INFO L78 Accepts]: Start accepts. Automaton has 1685 states and 4067 transitions. Word has length 137 [2022-01-17 23:33:03,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:33:03,850 INFO L470 AbstractCegarLoop]: Abstraction has 1685 states and 4067 transitions. [2022-01-17 23:33:03,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:03,850 INFO L276 IsEmpty]: Start isEmpty. Operand 1685 states and 4067 transitions. [2022-01-17 23:33:03,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:33:03,851 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:33:03,851 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:33:03,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable275 [2022-01-17 23:33:03,851 INFO L402 AbstractCegarLoop]: === Iteration 277 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:33:03,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:33:03,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1008561037, now seen corresponding path program 233 times [2022-01-17 23:33:03,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:33:03,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783820490] [2022-01-17 23:33:03,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:33:03,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:33:03,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:33:04,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:33:04,622 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:33:04,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783820490] [2022-01-17 23:33:04,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783820490] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:33:04,622 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:33:04,622 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:33:04,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32394305] [2022-01-17 23:33:04,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:33:04,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:33:04,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:33:04,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:33:04,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=729, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:33:04,623 INFO L87 Difference]: Start difference. First operand 1685 states and 4067 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:06,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:33:06,249 INFO L93 Difference]: Finished difference Result 1794 states and 4257 transitions. [2022-01-17 23:33:06,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:33:06,249 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:33:06,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:33:06,251 INFO L225 Difference]: With dead ends: 1794 [2022-01-17 23:33:06,251 INFO L226 Difference]: Without dead ends: 1691 [2022-01-17 23:33:06,252 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 571 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=536, Invalid=2434, Unknown=0, NotChecked=0, Total=2970 [2022-01-17 23:33:06,252 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 938 mSDsluCounter, 2127 mSDsCounter, 0 mSdLazyCounter, 1152 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 938 SdHoareTripleChecker+Valid, 2230 SdHoareTripleChecker+Invalid, 1241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 1152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:33:06,252 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [938 Valid, 2230 Invalid, 1241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 1152 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:33:06,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1691 states. [2022-01-17 23:33:06,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1691 to 1683. [2022-01-17 23:33:06,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1683 states, 1682 states have (on average 2.4149821640903686) internal successors, (4062), 1682 states have internal predecessors, (4062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:06,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1683 states to 1683 states and 4062 transitions. [2022-01-17 23:33:06,267 INFO L78 Accepts]: Start accepts. Automaton has 1683 states and 4062 transitions. Word has length 137 [2022-01-17 23:33:06,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:33:06,267 INFO L470 AbstractCegarLoop]: Abstraction has 1683 states and 4062 transitions. [2022-01-17 23:33:06,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:06,268 INFO L276 IsEmpty]: Start isEmpty. Operand 1683 states and 4062 transitions. [2022-01-17 23:33:06,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:33:06,269 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:33:06,269 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:33:06,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable276 [2022-01-17 23:33:06,269 INFO L402 AbstractCegarLoop]: === Iteration 278 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:33:06,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:33:06,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1868522715, now seen corresponding path program 234 times [2022-01-17 23:33:06,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:33:06,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558628843] [2022-01-17 23:33:06,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:33:06,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:33:06,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:33:06,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:33:06,823 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:33:06,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558628843] [2022-01-17 23:33:06,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558628843] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:33:06,823 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:33:06,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:33:06,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790739973] [2022-01-17 23:33:06,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:33:06,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:33:06,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:33:06,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:33:06,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=729, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:33:06,824 INFO L87 Difference]: Start difference. First operand 1683 states and 4062 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:08,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:33:08,186 INFO L93 Difference]: Finished difference Result 1806 states and 4275 transitions. [2022-01-17 23:33:08,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:33:08,186 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:33:08,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:33:08,188 INFO L225 Difference]: With dead ends: 1806 [2022-01-17 23:33:08,188 INFO L226 Difference]: Without dead ends: 1693 [2022-01-17 23:33:08,188 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 546 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=516, Invalid=2346, Unknown=0, NotChecked=0, Total=2862 [2022-01-17 23:33:08,188 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 1002 mSDsluCounter, 1838 mSDsCounter, 0 mSdLazyCounter, 1033 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1002 SdHoareTripleChecker+Valid, 1950 SdHoareTripleChecker+Invalid, 1138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 1033 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:33:08,188 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1002 Valid, 1950 Invalid, 1138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 1033 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:33:08,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1693 states. [2022-01-17 23:33:08,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1693 to 1675. [2022-01-17 23:33:08,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1675 states, 1674 states have (on average 2.413978494623656) internal successors, (4041), 1674 states have internal predecessors, (4041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:08,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1675 states to 1675 states and 4041 transitions. [2022-01-17 23:33:08,202 INFO L78 Accepts]: Start accepts. Automaton has 1675 states and 4041 transitions. Word has length 137 [2022-01-17 23:33:08,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:33:08,202 INFO L470 AbstractCegarLoop]: Abstraction has 1675 states and 4041 transitions. [2022-01-17 23:33:08,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:08,202 INFO L276 IsEmpty]: Start isEmpty. Operand 1675 states and 4041 transitions. [2022-01-17 23:33:08,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:33:08,204 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:33:08,204 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:33:08,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable277 [2022-01-17 23:33:08,204 INFO L402 AbstractCegarLoop]: === Iteration 279 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:33:08,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:33:08,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1666649857, now seen corresponding path program 235 times [2022-01-17 23:33:08,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:33:08,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905502771] [2022-01-17 23:33:08,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:33:08,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:33:08,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:33:08,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:33:08,748 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:33:08,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905502771] [2022-01-17 23:33:08,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905502771] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:33:08,748 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:33:08,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:33:08,748 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469160036] [2022-01-17 23:33:08,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:33:08,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:33:08,748 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:33:08,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:33:08,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=728, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:33:08,749 INFO L87 Difference]: Start difference. First operand 1675 states and 4041 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:10,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:33:10,759 INFO L93 Difference]: Finished difference Result 1822 states and 4316 transitions. [2022-01-17 23:33:10,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-17 23:33:10,759 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:33:10,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:33:10,761 INFO L225 Difference]: With dead ends: 1822 [2022-01-17 23:33:10,761 INFO L226 Difference]: Without dead ends: 1713 [2022-01-17 23:33:10,762 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 629 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=571, Invalid=2621, Unknown=0, NotChecked=0, Total=3192 [2022-01-17 23:33:10,762 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 859 mSDsluCounter, 2169 mSDsCounter, 0 mSdLazyCounter, 1063 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 859 SdHoareTripleChecker+Valid, 2288 SdHoareTripleChecker+Invalid, 1146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 1063 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:33:10,762 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [859 Valid, 2288 Invalid, 1146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 1063 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:33:10,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1713 states. [2022-01-17 23:33:10,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1713 to 1675. [2022-01-17 23:33:10,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1675 states, 1674 states have (on average 2.412783751493429) internal successors, (4039), 1674 states have internal predecessors, (4039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:10,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1675 states to 1675 states and 4039 transitions. [2022-01-17 23:33:10,776 INFO L78 Accepts]: Start accepts. Automaton has 1675 states and 4039 transitions. Word has length 137 [2022-01-17 23:33:10,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:33:10,776 INFO L470 AbstractCegarLoop]: Abstraction has 1675 states and 4039 transitions. [2022-01-17 23:33:10,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:10,776 INFO L276 IsEmpty]: Start isEmpty. Operand 1675 states and 4039 transitions. [2022-01-17 23:33:10,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:33:10,777 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:33:10,777 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:33:10,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable278 [2022-01-17 23:33:10,777 INFO L402 AbstractCegarLoop]: === Iteration 280 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:33:10,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:33:10,778 INFO L85 PathProgramCache]: Analyzing trace with hash 2065800243, now seen corresponding path program 236 times [2022-01-17 23:33:10,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:33:10,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317957940] [2022-01-17 23:33:10,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:33:10,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:33:10,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:33:11,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:33:11,344 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:33:11,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317957940] [2022-01-17 23:33:11,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317957940] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:33:11,344 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:33:11,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:33:11,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498990155] [2022-01-17 23:33:11,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:33:11,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:33:11,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:33:11,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:33:11,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=728, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:33:11,345 INFO L87 Difference]: Start difference. First operand 1675 states and 4039 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:13,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:33:13,115 INFO L93 Difference]: Finished difference Result 1782 states and 4226 transitions. [2022-01-17 23:33:13,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-17 23:33:13,115 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:33:13,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:33:13,117 INFO L225 Difference]: With dead ends: 1782 [2022-01-17 23:33:13,117 INFO L226 Difference]: Without dead ends: 1679 [2022-01-17 23:33:13,117 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 620 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=584, Invalid=2608, Unknown=0, NotChecked=0, Total=3192 [2022-01-17 23:33:13,117 INFO L933 BasicCegarLoop]: 167 mSDtfsCounter, 1050 mSDsluCounter, 2134 mSDsCounter, 0 mSdLazyCounter, 1050 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1050 SdHoareTripleChecker+Valid, 2249 SdHoareTripleChecker+Invalid, 1147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 1050 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:33:13,118 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1050 Valid, 2249 Invalid, 1147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 1050 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:33:13,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1679 states. [2022-01-17 23:33:13,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1679 to 1673. [2022-01-17 23:33:13,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1673 states, 1672 states have (on average 2.4132775119617227) internal successors, (4035), 1672 states have internal predecessors, (4035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:13,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1673 states to 1673 states and 4035 transitions. [2022-01-17 23:33:13,131 INFO L78 Accepts]: Start accepts. Automaton has 1673 states and 4035 transitions. Word has length 137 [2022-01-17 23:33:13,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:33:13,131 INFO L470 AbstractCegarLoop]: Abstraction has 1673 states and 4035 transitions. [2022-01-17 23:33:13,131 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:13,131 INFO L276 IsEmpty]: Start isEmpty. Operand 1673 states and 4035 transitions. [2022-01-17 23:33:13,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:33:13,133 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:33:13,133 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:33:13,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable279 [2022-01-17 23:33:13,133 INFO L402 AbstractCegarLoop]: === Iteration 281 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:33:13,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:33:13,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1024533887, now seen corresponding path program 237 times [2022-01-17 23:33:13,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:33:13,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013940898] [2022-01-17 23:33:13,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:33:13,133 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:33:13,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:33:13,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:33:13,693 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:33:13,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013940898] [2022-01-17 23:33:13,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013940898] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:33:13,694 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:33:13,694 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:33:13,694 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620141646] [2022-01-17 23:33:13,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:33:13,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:33:13,694 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:33:13,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:33:13,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=726, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:33:13,694 INFO L87 Difference]: Start difference. First operand 1673 states and 4035 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:15,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:33:15,435 INFO L93 Difference]: Finished difference Result 1806 states and 4281 transitions. [2022-01-17 23:33:15,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-17 23:33:15,435 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:33:15,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:33:15,437 INFO L225 Difference]: With dead ends: 1806 [2022-01-17 23:33:15,437 INFO L226 Difference]: Without dead ends: 1697 [2022-01-17 23:33:15,437 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 608 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=546, Invalid=2534, Unknown=0, NotChecked=0, Total=3080 [2022-01-17 23:33:15,437 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 1055 mSDsluCounter, 2381 mSDsCounter, 0 mSdLazyCounter, 1219 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1055 SdHoareTripleChecker+Valid, 2507 SdHoareTripleChecker+Invalid, 1322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:33:15,437 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1055 Valid, 2507 Invalid, 1322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1219 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:33:15,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1697 states. [2022-01-17 23:33:15,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1697 to 1663. [2022-01-17 23:33:15,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1663 states, 1662 states have (on average 2.410950661853189) internal successors, (4007), 1662 states have internal predecessors, (4007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:15,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1663 states to 1663 states and 4007 transitions. [2022-01-17 23:33:15,451 INFO L78 Accepts]: Start accepts. Automaton has 1663 states and 4007 transitions. Word has length 137 [2022-01-17 23:33:15,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:33:15,451 INFO L470 AbstractCegarLoop]: Abstraction has 1663 states and 4007 transitions. [2022-01-17 23:33:15,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:15,451 INFO L276 IsEmpty]: Start isEmpty. Operand 1663 states and 4007 transitions. [2022-01-17 23:33:15,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:33:15,453 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:33:15,453 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:33:15,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable280 [2022-01-17 23:33:15,453 INFO L402 AbstractCegarLoop]: === Iteration 282 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:33:15,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:33:15,453 INFO L85 PathProgramCache]: Analyzing trace with hash 582424447, now seen corresponding path program 238 times [2022-01-17 23:33:15,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:33:15,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072122816] [2022-01-17 23:33:15,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:33:15,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:33:15,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:33:16,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:33:16,079 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:33:16,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072122816] [2022-01-17 23:33:16,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072122816] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:33:16,080 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:33:16,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:33:16,080 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588583102] [2022-01-17 23:33:16,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:33:16,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:33:16,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:33:16,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:33:16,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:33:16,080 INFO L87 Difference]: Start difference. First operand 1663 states and 4007 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:18,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:33:18,261 INFO L93 Difference]: Finished difference Result 2006 states and 4811 transitions. [2022-01-17 23:33:18,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-17 23:33:18,261 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:33:18,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:33:18,263 INFO L225 Difference]: With dead ends: 2006 [2022-01-17 23:33:18,263 INFO L226 Difference]: Without dead ends: 1907 [2022-01-17 23:33:18,264 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 604 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=547, Invalid=2533, Unknown=0, NotChecked=0, Total=3080 [2022-01-17 23:33:18,264 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 1172 mSDsluCounter, 2548 mSDsCounter, 0 mSdLazyCounter, 1202 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1172 SdHoareTripleChecker+Valid, 2683 SdHoareTripleChecker+Invalid, 1323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 1202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:33:18,264 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1172 Valid, 2683 Invalid, 1323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 1202 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:33:18,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1907 states. [2022-01-17 23:33:18,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1907 to 1859. [2022-01-17 23:33:18,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1859 states, 1858 states have (on average 2.4203444564047363) internal successors, (4497), 1858 states have internal predecessors, (4497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:18,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1859 states to 1859 states and 4497 transitions. [2022-01-17 23:33:18,279 INFO L78 Accepts]: Start accepts. Automaton has 1859 states and 4497 transitions. Word has length 137 [2022-01-17 23:33:18,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:33:18,279 INFO L470 AbstractCegarLoop]: Abstraction has 1859 states and 4497 transitions. [2022-01-17 23:33:18,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:18,279 INFO L276 IsEmpty]: Start isEmpty. Operand 1859 states and 4497 transitions. [2022-01-17 23:33:18,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:33:18,281 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:33:18,281 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:33:18,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable281 [2022-01-17 23:33:18,281 INFO L402 AbstractCegarLoop]: === Iteration 283 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:33:18,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:33:18,282 INFO L85 PathProgramCache]: Analyzing trace with hash 816752511, now seen corresponding path program 239 times [2022-01-17 23:33:18,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:33:18,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872837622] [2022-01-17 23:33:18,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:33:18,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:33:18,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:33:18,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:33:18,953 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:33:18,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872837622] [2022-01-17 23:33:18,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872837622] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:33:18,953 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:33:18,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-17 23:33:18,953 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921281291] [2022-01-17 23:33:18,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:33:18,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-17 23:33:18,953 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:33:18,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-17 23:33:18,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=829, Unknown=0, NotChecked=0, Total=930 [2022-01-17 23:33:18,953 INFO L87 Difference]: Start difference. First operand 1859 states and 4497 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:20,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:33:20,520 INFO L93 Difference]: Finished difference Result 2215 states and 5311 transitions. [2022-01-17 23:33:20,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-17 23:33:20,520 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:33:20,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:33:20,523 INFO L225 Difference]: With dead ends: 2215 [2022-01-17 23:33:20,523 INFO L226 Difference]: Without dead ends: 1940 [2022-01-17 23:33:20,523 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 626 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=578, Invalid=2728, Unknown=0, NotChecked=0, Total=3306 [2022-01-17 23:33:20,523 INFO L933 BasicCegarLoop]: 218 mSDtfsCounter, 1386 mSDsluCounter, 2746 mSDsCounter, 0 mSdLazyCounter, 1191 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1386 SdHoareTripleChecker+Valid, 2907 SdHoareTripleChecker+Invalid, 1323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 1191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:33:20,523 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1386 Valid, 2907 Invalid, 1323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 1191 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:33:20,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1940 states. [2022-01-17 23:33:20,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1940 to 1901. [2022-01-17 23:33:20,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1901 states, 1900 states have (on average 2.4036842105263156) internal successors, (4567), 1900 states have internal predecessors, (4567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:20,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1901 states to 1901 states and 4567 transitions. [2022-01-17 23:33:20,539 INFO L78 Accepts]: Start accepts. Automaton has 1901 states and 4567 transitions. Word has length 137 [2022-01-17 23:33:20,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:33:20,539 INFO L470 AbstractCegarLoop]: Abstraction has 1901 states and 4567 transitions. [2022-01-17 23:33:20,539 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:20,539 INFO L276 IsEmpty]: Start isEmpty. Operand 1901 states and 4567 transitions. [2022-01-17 23:33:20,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:33:20,540 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:33:20,541 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:33:20,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable282 [2022-01-17 23:33:20,541 INFO L402 AbstractCegarLoop]: === Iteration 284 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:33:20,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:33:20,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1761944541, now seen corresponding path program 240 times [2022-01-17 23:33:20,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:33:20,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555379204] [2022-01-17 23:33:20,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:33:20,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:33:20,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:33:21,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:33:21,441 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:33:21,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555379204] [2022-01-17 23:33:21,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555379204] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:33:21,441 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:33:21,441 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2022-01-17 23:33:21,441 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410188538] [2022-01-17 23:33:21,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:33:21,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-01-17 23:33:21,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:33:21,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-01-17 23:33:21,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=959, Unknown=0, NotChecked=0, Total=1056 [2022-01-17 23:33:21,442 INFO L87 Difference]: Start difference. First operand 1901 states and 4567 transitions. Second operand has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:23,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:33:23,177 INFO L93 Difference]: Finished difference Result 1972 states and 4684 transitions. [2022-01-17 23:33:23,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-17 23:33:23,177 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:33:23,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:33:23,179 INFO L225 Difference]: With dead ends: 1972 [2022-01-17 23:33:23,179 INFO L226 Difference]: Without dead ends: 1593 [2022-01-17 23:33:23,179 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 760 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=646, Invalid=3260, Unknown=0, NotChecked=0, Total=3906 [2022-01-17 23:33:23,179 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 1357 mSDsluCounter, 2715 mSDsCounter, 0 mSdLazyCounter, 1175 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1357 SdHoareTripleChecker+Valid, 2860 SdHoareTripleChecker+Invalid, 1308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 1175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:33:23,179 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1357 Valid, 2860 Invalid, 1308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 1175 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:33:23,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1593 states. [2022-01-17 23:33:23,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1593 to 1593. [2022-01-17 23:33:23,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1593 states, 1592 states have (on average 2.3881909547738696) internal successors, (3802), 1592 states have internal predecessors, (3802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:23,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1593 states to 1593 states and 3802 transitions. [2022-01-17 23:33:23,192 INFO L78 Accepts]: Start accepts. Automaton has 1593 states and 3802 transitions. Word has length 137 [2022-01-17 23:33:23,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:33:23,192 INFO L470 AbstractCegarLoop]: Abstraction has 1593 states and 3802 transitions. [2022-01-17 23:33:23,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:23,192 INFO L276 IsEmpty]: Start isEmpty. Operand 1593 states and 3802 transitions. [2022-01-17 23:33:23,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:33:23,194 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:33:23,194 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:33:23,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable283 [2022-01-17 23:33:23,194 INFO L402 AbstractCegarLoop]: === Iteration 285 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:33:23,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:33:23,194 INFO L85 PathProgramCache]: Analyzing trace with hash -138186061, now seen corresponding path program 241 times [2022-01-17 23:33:23,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:33:23,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857527876] [2022-01-17 23:33:23,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:33:23,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:33:23,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:33:23,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:33:23,715 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:33:23,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857527876] [2022-01-17 23:33:23,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857527876] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:33:23,715 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:33:23,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:33:23,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965354598] [2022-01-17 23:33:23,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:33:23,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:33:23,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:33:23,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:33:23,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=727, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:33:23,716 INFO L87 Difference]: Start difference. First operand 1593 states and 3802 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:25,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:33:25,679 INFO L93 Difference]: Finished difference Result 1724 states and 4039 transitions. [2022-01-17 23:33:25,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-17 23:33:25,679 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:33:25,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:33:25,681 INFO L225 Difference]: With dead ends: 1724 [2022-01-17 23:33:25,681 INFO L226 Difference]: Without dead ends: 1623 [2022-01-17 23:33:25,681 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 623 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=583, Invalid=2609, Unknown=0, NotChecked=0, Total=3192 [2022-01-17 23:33:25,682 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 921 mSDsluCounter, 2510 mSDsCounter, 0 mSdLazyCounter, 1177 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 921 SdHoareTripleChecker+Valid, 2630 SdHoareTripleChecker+Invalid, 1269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:33:25,682 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [921 Valid, 2630 Invalid, 1269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 1177 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:33:25,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1623 states. [2022-01-17 23:33:25,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1623 to 1607. [2022-01-17 23:33:25,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1607 states, 1606 states have (on average 2.384184308841843) internal successors, (3829), 1606 states have internal predecessors, (3829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:25,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1607 states to 1607 states and 3829 transitions. [2022-01-17 23:33:25,695 INFO L78 Accepts]: Start accepts. Automaton has 1607 states and 3829 transitions. Word has length 137 [2022-01-17 23:33:25,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:33:25,695 INFO L470 AbstractCegarLoop]: Abstraction has 1607 states and 3829 transitions. [2022-01-17 23:33:25,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:25,695 INFO L276 IsEmpty]: Start isEmpty. Operand 1607 states and 3829 transitions. [2022-01-17 23:33:25,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:33:25,696 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:33:25,696 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:33:25,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable284 [2022-01-17 23:33:25,696 INFO L402 AbstractCegarLoop]: === Iteration 286 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:33:25,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:33:25,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1195552307, now seen corresponding path program 242 times [2022-01-17 23:33:25,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:33:25,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687346483] [2022-01-17 23:33:25,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:33:25,697 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:33:25,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:33:26,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:33:26,238 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:33:26,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687346483] [2022-01-17 23:33:26,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687346483] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:33:26,238 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:33:26,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:33:26,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597425626] [2022-01-17 23:33:26,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:33:26,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:33:26,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:33:26,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:33:26,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:33:26,238 INFO L87 Difference]: Start difference. First operand 1607 states and 3829 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:28,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:33:28,035 INFO L93 Difference]: Finished difference Result 1950 states and 4633 transitions. [2022-01-17 23:33:28,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-17 23:33:28,035 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:33:28,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:33:28,037 INFO L225 Difference]: With dead ends: 1950 [2022-01-17 23:33:28,037 INFO L226 Difference]: Without dead ends: 1851 [2022-01-17 23:33:28,038 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 601 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=550, Invalid=2530, Unknown=0, NotChecked=0, Total=3080 [2022-01-17 23:33:28,038 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 954 mSDsluCounter, 2496 mSDsCounter, 0 mSdLazyCounter, 1229 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 954 SdHoareTripleChecker+Valid, 2632 SdHoareTripleChecker+Invalid, 1324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:33:28,038 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [954 Valid, 2632 Invalid, 1324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 1229 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:33:28,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1851 states. [2022-01-17 23:33:28,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1851 to 1803. [2022-01-17 23:33:28,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1803 states, 1802 states have (on average 2.3967813540510545) internal successors, (4319), 1802 states have internal predecessors, (4319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:28,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1803 states to 1803 states and 4319 transitions. [2022-01-17 23:33:28,052 INFO L78 Accepts]: Start accepts. Automaton has 1803 states and 4319 transitions. Word has length 137 [2022-01-17 23:33:28,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:33:28,052 INFO L470 AbstractCegarLoop]: Abstraction has 1803 states and 4319 transitions. [2022-01-17 23:33:28,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:28,052 INFO L276 IsEmpty]: Start isEmpty. Operand 1803 states and 4319 transitions. [2022-01-17 23:33:28,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:33:28,054 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:33:28,054 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:33:28,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable285 [2022-01-17 23:33:28,054 INFO L402 AbstractCegarLoop]: === Iteration 287 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:33:28,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:33:28,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1403606451, now seen corresponding path program 243 times [2022-01-17 23:33:28,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:33:28,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583339315] [2022-01-17 23:33:28,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:33:28,054 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:33:28,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:33:28,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:33:28,969 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:33:28,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583339315] [2022-01-17 23:33:28,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583339315] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:33:28,969 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:33:28,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-17 23:33:28,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102555096] [2022-01-17 23:33:28,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:33:28,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-17 23:33:28,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:33:28,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-17 23:33:28,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=994, Unknown=0, NotChecked=0, Total=1122 [2022-01-17 23:33:28,970 INFO L87 Difference]: Start difference. First operand 1803 states and 4319 transitions. Second operand has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:31,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:33:31,476 INFO L93 Difference]: Finished difference Result 2159 states and 5133 transitions. [2022-01-17 23:33:31,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-17 23:33:31,476 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:33:31,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:33:31,478 INFO L225 Difference]: With dead ends: 2159 [2022-01-17 23:33:31,478 INFO L226 Difference]: Without dead ends: 1884 [2022-01-17 23:33:31,479 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 877 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=723, Invalid=3437, Unknown=0, NotChecked=0, Total=4160 [2022-01-17 23:33:31,479 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 1264 mSDsluCounter, 3440 mSDsCounter, 0 mSdLazyCounter, 1398 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1264 SdHoareTripleChecker+Valid, 3585 SdHoareTripleChecker+Invalid, 1518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 1398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:33:31,479 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1264 Valid, 3585 Invalid, 1518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 1398 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:33:31,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1884 states. [2022-01-17 23:33:31,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1884 to 1845. [2022-01-17 23:33:31,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1845 states, 1844 states have (on average 2.3801518438177873) internal successors, (4389), 1844 states have internal predecessors, (4389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:31,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1845 states to 1845 states and 4389 transitions. [2022-01-17 23:33:31,493 INFO L78 Accepts]: Start accepts. Automaton has 1845 states and 4389 transitions. Word has length 137 [2022-01-17 23:33:31,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:33:31,494 INFO L470 AbstractCegarLoop]: Abstraction has 1845 states and 4389 transitions. [2022-01-17 23:33:31,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:31,494 INFO L276 IsEmpty]: Start isEmpty. Operand 1845 states and 4389 transitions. [2022-01-17 23:33:31,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:33:31,495 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:33:31,495 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:33:31,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable286 [2022-01-17 23:33:31,495 INFO L402 AbstractCegarLoop]: === Iteration 288 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:33:31,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:33:31,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1946168815, now seen corresponding path program 244 times [2022-01-17 23:33:31,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:33:31,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467383861] [2022-01-17 23:33:31,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:33:31,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:33:31,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:33:32,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:33:32,412 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:33:32,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467383861] [2022-01-17 23:33:32,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467383861] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:33:32,412 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:33:32,412 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-17 23:33:32,412 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819850660] [2022-01-17 23:33:32,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:33:32,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-17 23:33:32,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:33:32,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-17 23:33:32,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=999, Unknown=0, NotChecked=0, Total=1122 [2022-01-17 23:33:32,413 INFO L87 Difference]: Start difference. First operand 1845 states and 4389 transitions. Second operand has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:34,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:33:34,184 INFO L93 Difference]: Finished difference Result 1916 states and 4506 transitions. [2022-01-17 23:33:34,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-17 23:33:34,184 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:33:34,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:33:34,186 INFO L225 Difference]: With dead ends: 1916 [2022-01-17 23:33:34,186 INFO L226 Difference]: Without dead ends: 1579 [2022-01-17 23:33:34,187 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 840 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=678, Invalid=3354, Unknown=0, NotChecked=0, Total=4032 [2022-01-17 23:33:34,187 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 1491 mSDsluCounter, 2835 mSDsCounter, 0 mSdLazyCounter, 1176 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1491 SdHoareTripleChecker+Valid, 2976 SdHoareTripleChecker+Invalid, 1326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 1176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:33:34,187 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1491 Valid, 2976 Invalid, 1326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 1176 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:33:34,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1579 states. [2022-01-17 23:33:34,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1579 to 1579. [2022-01-17 23:33:34,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1579 states, 1578 states have (on average 2.3833967046894804) internal successors, (3761), 1578 states have internal predecessors, (3761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:34,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1579 states to 1579 states and 3761 transitions. [2022-01-17 23:33:34,200 INFO L78 Accepts]: Start accepts. Automaton has 1579 states and 3761 transitions. Word has length 137 [2022-01-17 23:33:34,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:33:34,200 INFO L470 AbstractCegarLoop]: Abstraction has 1579 states and 3761 transitions. [2022-01-17 23:33:34,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:34,200 INFO L276 IsEmpty]: Start isEmpty. Operand 1579 states and 3761 transitions. [2022-01-17 23:33:34,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:33:34,202 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:33:34,202 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:33:34,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable287 [2022-01-17 23:33:34,202 INFO L402 AbstractCegarLoop]: === Iteration 289 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:33:34,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:33:34,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1472621403, now seen corresponding path program 245 times [2022-01-17 23:33:34,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:33:34,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904817225] [2022-01-17 23:33:34,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:33:34,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:33:34,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:33:34,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:33:34,751 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:33:34,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904817225] [2022-01-17 23:33:34,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904817225] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:33:34,751 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:33:34,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:33:34,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353911645] [2022-01-17 23:33:34,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:33:34,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:33:34,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:33:34,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:33:34,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=728, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:33:34,752 INFO L87 Difference]: Start difference. First operand 1579 states and 3761 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:36,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:33:36,311 INFO L93 Difference]: Finished difference Result 1688 states and 3951 transitions. [2022-01-17 23:33:36,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:33:36,311 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:33:36,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:33:36,313 INFO L225 Difference]: With dead ends: 1688 [2022-01-17 23:33:36,313 INFO L226 Difference]: Without dead ends: 1581 [2022-01-17 23:33:36,313 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 549 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=516, Invalid=2346, Unknown=0, NotChecked=0, Total=2862 [2022-01-17 23:33:36,313 INFO L933 BasicCegarLoop]: 166 mSDtfsCounter, 854 mSDsluCounter, 2460 mSDsCounter, 0 mSdLazyCounter, 1351 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 854 SdHoareTripleChecker+Valid, 2568 SdHoareTripleChecker+Invalid, 1442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:33:36,314 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [854 Valid, 2568 Invalid, 1442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1351 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:33:36,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1581 states. [2022-01-17 23:33:36,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1581 to 1571. [2022-01-17 23:33:36,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 2.3847133757961783) internal successors, (3744), 1570 states have internal predecessors, (3744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:36,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 3744 transitions. [2022-01-17 23:33:36,329 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 3744 transitions. Word has length 137 [2022-01-17 23:33:36,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:33:36,330 INFO L470 AbstractCegarLoop]: Abstraction has 1571 states and 3744 transitions. [2022-01-17 23:33:36,330 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:36,330 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 3744 transitions. [2022-01-17 23:33:36,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:33:36,331 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:33:36,331 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:33:36,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable288 [2022-01-17 23:33:36,331 INFO L402 AbstractCegarLoop]: === Iteration 290 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:33:36,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:33:36,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1927637787, now seen corresponding path program 246 times [2022-01-17 23:33:36,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:33:36,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468036186] [2022-01-17 23:33:36,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:33:36,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:33:36,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:33:36,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:33:36,865 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:33:36,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468036186] [2022-01-17 23:33:36,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468036186] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:33:36,865 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:33:36,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:33:36,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799821333] [2022-01-17 23:33:36,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:33:36,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:33:36,865 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:33:36,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:33:36,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=727, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:33:36,866 INFO L87 Difference]: Start difference. First operand 1571 states and 3744 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:38,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:33:38,351 INFO L93 Difference]: Finished difference Result 1670 states and 3919 transitions. [2022-01-17 23:33:38,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-17 23:33:38,351 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:33:38,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:33:38,353 INFO L225 Difference]: With dead ends: 1670 [2022-01-17 23:33:38,353 INFO L226 Difference]: Without dead ends: 1569 [2022-01-17 23:33:38,354 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 599 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=558, Invalid=2522, Unknown=0, NotChecked=0, Total=3080 [2022-01-17 23:33:38,354 INFO L933 BasicCegarLoop]: 176 mSDtfsCounter, 975 mSDsluCounter, 2386 mSDsCounter, 0 mSdLazyCounter, 1191 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 975 SdHoareTripleChecker+Valid, 2508 SdHoareTripleChecker+Invalid, 1293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:33:38,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [975 Valid, 2508 Invalid, 1293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1191 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:33:38,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1569 states. [2022-01-17 23:33:38,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1569 to 1569. [2022-01-17 23:33:38,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1568 states have (on average 2.385204081632653) internal successors, (3740), 1568 states have internal predecessors, (3740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:38,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 3740 transitions. [2022-01-17 23:33:38,367 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 3740 transitions. Word has length 137 [2022-01-17 23:33:38,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:33:38,367 INFO L470 AbstractCegarLoop]: Abstraction has 1569 states and 3740 transitions. [2022-01-17 23:33:38,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:38,367 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 3740 transitions. [2022-01-17 23:33:38,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:33:38,368 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:33:38,368 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:33:38,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable289 [2022-01-17 23:33:38,369 INFO L402 AbstractCegarLoop]: === Iteration 291 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:33:38,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:33:38,369 INFO L85 PathProgramCache]: Analyzing trace with hash -593899419, now seen corresponding path program 247 times [2022-01-17 23:33:38,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:33:38,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650128769] [2022-01-17 23:33:38,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:33:38,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:33:38,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:33:39,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:33:39,040 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:33:39,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650128769] [2022-01-17 23:33:39,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650128769] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:33:39,040 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:33:39,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-17 23:33:39,040 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830380920] [2022-01-17 23:33:39,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:33:39,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-17 23:33:39,041 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:33:39,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-17 23:33:39,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2022-01-17 23:33:39,041 INFO L87 Difference]: Start difference. First operand 1569 states and 3740 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:40,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:33:40,847 INFO L93 Difference]: Finished difference Result 1640 states and 3857 transitions. [2022-01-17 23:33:40,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:33:40,847 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:33:40,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:33:40,849 INFO L225 Difference]: With dead ends: 1640 [2022-01-17 23:33:40,849 INFO L226 Difference]: Without dead ends: 1541 [2022-01-17 23:33:40,849 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 577 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=528, Invalid=2442, Unknown=0, NotChecked=0, Total=2970 [2022-01-17 23:33:40,849 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 1118 mSDsluCounter, 2099 mSDsCounter, 0 mSdLazyCounter, 1044 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1118 SdHoareTripleChecker+Valid, 2239 SdHoareTripleChecker+Invalid, 1170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 1044 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:33:40,849 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1118 Valid, 2239 Invalid, 1170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 1044 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:33:40,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1541 states. [2022-01-17 23:33:40,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1541 to 1541. [2022-01-17 23:33:40,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1541 states, 1540 states have (on average 2.381818181818182) internal successors, (3668), 1540 states have internal predecessors, (3668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:40,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1541 states to 1541 states and 3668 transitions. [2022-01-17 23:33:40,861 INFO L78 Accepts]: Start accepts. Automaton has 1541 states and 3668 transitions. Word has length 137 [2022-01-17 23:33:40,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:33:40,861 INFO L470 AbstractCegarLoop]: Abstraction has 1541 states and 3668 transitions. [2022-01-17 23:33:40,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:40,861 INFO L276 IsEmpty]: Start isEmpty. Operand 1541 states and 3668 transitions. [2022-01-17 23:33:40,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:33:40,863 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:33:40,863 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:33:40,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable290 [2022-01-17 23:33:40,863 INFO L402 AbstractCegarLoop]: === Iteration 292 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:33:40,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:33:40,863 INFO L85 PathProgramCache]: Analyzing trace with hash -385845275, now seen corresponding path program 248 times [2022-01-17 23:33:40,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:33:40,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108453055] [2022-01-17 23:33:40,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:33:40,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:33:40,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:33:41,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:33:41,486 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:33:41,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108453055] [2022-01-17 23:33:41,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108453055] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:33:41,486 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:33:41,487 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-17 23:33:41,487 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615682654] [2022-01-17 23:33:41,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:33:41,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-17 23:33:41,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:33:41,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-17 23:33:41,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=829, Unknown=0, NotChecked=0, Total=930 [2022-01-17 23:33:41,487 INFO L87 Difference]: Start difference. First operand 1541 states and 3668 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:43,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:33:43,298 INFO L93 Difference]: Finished difference Result 1753 states and 4107 transitions. [2022-01-17 23:33:43,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:33:43,299 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:33:43,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:33:43,300 INFO L225 Difference]: With dead ends: 1753 [2022-01-17 23:33:43,301 INFO L226 Difference]: Without dead ends: 1478 [2022-01-17 23:33:43,301 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 595 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=568, Invalid=2624, Unknown=0, NotChecked=0, Total=3192 [2022-01-17 23:33:43,301 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 1256 mSDsluCounter, 2381 mSDsCounter, 0 mSdLazyCounter, 1028 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1256 SdHoareTripleChecker+Valid, 2543 SdHoareTripleChecker+Invalid, 1153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 1028 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:33:43,301 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1256 Valid, 2543 Invalid, 1153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 1028 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:33:43,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1478 states. [2022-01-17 23:33:43,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1478 to 1457. [2022-01-17 23:33:43,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1457 states, 1456 states have (on average 2.3365384615384617) internal successors, (3402), 1456 states have internal predecessors, (3402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:43,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1457 states to 1457 states and 3402 transitions. [2022-01-17 23:33:43,313 INFO L78 Accepts]: Start accepts. Automaton has 1457 states and 3402 transitions. Word has length 137 [2022-01-17 23:33:43,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:33:43,313 INFO L470 AbstractCegarLoop]: Abstraction has 1457 states and 3402 transitions. [2022-01-17 23:33:43,313 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:43,313 INFO L276 IsEmpty]: Start isEmpty. Operand 1457 states and 3402 transitions. [2022-01-17 23:33:43,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:33:43,314 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:33:43,314 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:33:43,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable291 [2022-01-17 23:33:43,314 INFO L402 AbstractCegarLoop]: === Iteration 293 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:33:43,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:33:43,315 INFO L85 PathProgramCache]: Analyzing trace with hash 559346755, now seen corresponding path program 249 times [2022-01-17 23:33:43,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:33:43,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914791570] [2022-01-17 23:33:43,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:33:43,315 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:33:43,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:33:44,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:33:44,002 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:33:44,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914791570] [2022-01-17 23:33:44,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914791570] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:33:44,003 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:33:44,003 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2022-01-17 23:33:44,003 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892829916] [2022-01-17 23:33:44,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:33:44,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-01-17 23:33:44,003 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:33:44,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-01-17 23:33:44,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=885, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:33:44,003 INFO L87 Difference]: Start difference. First operand 1457 states and 3402 transitions. Second operand has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:46,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:33:46,113 INFO L93 Difference]: Finished difference Result 1510 states and 3480 transitions. [2022-01-17 23:33:46,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-17 23:33:46,113 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:33:46,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:33:46,115 INFO L225 Difference]: With dead ends: 1510 [2022-01-17 23:33:46,115 INFO L226 Difference]: Without dead ends: 977 [2022-01-17 23:33:46,115 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 784 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=688, Invalid=3218, Unknown=0, NotChecked=0, Total=3906 [2022-01-17 23:33:46,115 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 1238 mSDsluCounter, 2942 mSDsCounter, 0 mSdLazyCounter, 1408 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1238 SdHoareTripleChecker+Valid, 3071 SdHoareTripleChecker+Invalid, 1534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 1408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:33:46,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1238 Valid, 3071 Invalid, 1534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 1408 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:33:46,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2022-01-17 23:33:46,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 977. [2022-01-17 23:33:46,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 977 states, 976 states have (on average 2.242827868852459) internal successors, (2189), 976 states have internal predecessors, (2189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:46,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 2189 transitions. [2022-01-17 23:33:46,124 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 2189 transitions. Word has length 137 [2022-01-17 23:33:46,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:33:46,124 INFO L470 AbstractCegarLoop]: Abstraction has 977 states and 2189 transitions. [2022-01-17 23:33:46,124 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:46,124 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 2189 transitions. [2022-01-17 23:33:46,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:33:46,125 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:33:46,125 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:33:46,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable292 [2022-01-17 23:33:46,125 INFO L402 AbstractCegarLoop]: === Iteration 294 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:33:46,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:33:46,125 INFO L85 PathProgramCache]: Analyzing trace with hash 2066122139, now seen corresponding path program 250 times [2022-01-17 23:33:46,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:33:46,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037528466] [2022-01-17 23:33:46,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:33:46,125 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:33:46,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:33:46,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:33:46,816 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:33:46,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037528466] [2022-01-17 23:33:46,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037528466] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:33:46,816 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:33:46,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-17 23:33:46,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697583002] [2022-01-17 23:33:46,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:33:46,816 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-17 23:33:46,816 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:33:46,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-17 23:33:46,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=793, Unknown=0, NotChecked=0, Total=870 [2022-01-17 23:33:46,817 INFO L87 Difference]: Start difference. First operand 977 states and 2189 transitions. Second operand has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:48,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:33:48,837 INFO L93 Difference]: Finished difference Result 1123 states and 2452 transitions. [2022-01-17 23:33:48,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:33:48,837 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:33:48,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:33:48,838 INFO L225 Difference]: With dead ends: 1123 [2022-01-17 23:33:48,838 INFO L226 Difference]: Without dead ends: 971 [2022-01-17 23:33:48,839 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 522 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=525, Invalid=2445, Unknown=0, NotChecked=0, Total=2970 [2022-01-17 23:33:48,839 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 942 mSDsluCounter, 1993 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 942 SdHoareTripleChecker+Valid, 2075 SdHoareTripleChecker+Invalid, 1184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:33:48,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [942 Valid, 2075 Invalid, 1184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 1098 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:33:48,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 971 states. [2022-01-17 23:33:48,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 971 to 971. [2022-01-17 23:33:48,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 971 states, 970 states have (on average 2.2443298969072165) internal successors, (2177), 970 states have internal predecessors, (2177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:48,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 971 states to 971 states and 2177 transitions. [2022-01-17 23:33:48,846 INFO L78 Accepts]: Start accepts. Automaton has 971 states and 2177 transitions. Word has length 137 [2022-01-17 23:33:48,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:33:48,846 INFO L470 AbstractCegarLoop]: Abstraction has 971 states and 2177 transitions. [2022-01-17 23:33:48,846 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:48,847 INFO L276 IsEmpty]: Start isEmpty. Operand 971 states and 2177 transitions. [2022-01-17 23:33:48,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:33:48,847 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:33:48,847 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:33:48,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable293 [2022-01-17 23:33:48,848 INFO L402 AbstractCegarLoop]: === Iteration 295 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:33:48,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:33:48,848 INFO L85 PathProgramCache]: Analyzing trace with hash 949439323, now seen corresponding path program 251 times [2022-01-17 23:33:48,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:33:48,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772567307] [2022-01-17 23:33:48,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:33:48,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:33:48,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:33:49,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:33:49,366 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:33:49,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772567307] [2022-01-17 23:33:49,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772567307] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:33:49,366 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:33:49,366 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-17 23:33:49,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478087780] [2022-01-17 23:33:49,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:33:49,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-17 23:33:49,366 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:33:49,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-17 23:33:49,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2022-01-17 23:33:49,367 INFO L87 Difference]: Start difference. First operand 971 states and 2177 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:50,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:33:50,896 INFO L93 Difference]: Finished difference Result 1115 states and 2437 transitions. [2022-01-17 23:33:50,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:33:50,896 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:33:50,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:33:50,897 INFO L225 Difference]: With dead ends: 1115 [2022-01-17 23:33:50,898 INFO L226 Difference]: Without dead ends: 969 [2022-01-17 23:33:50,898 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 473 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=501, Invalid=2255, Unknown=0, NotChecked=0, Total=2756 [2022-01-17 23:33:50,898 INFO L933 BasicCegarLoop]: 159 mSDtfsCounter, 801 mSDsluCounter, 2362 mSDsCounter, 0 mSdLazyCounter, 1225 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 801 SdHoareTripleChecker+Valid, 2446 SdHoareTripleChecker+Invalid, 1299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:33:50,898 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [801 Valid, 2446 Invalid, 1299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1225 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:33:50,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 969 states. [2022-01-17 23:33:50,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 969 to 969. [2022-01-17 23:33:50,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 969 states, 968 states have (on average 2.2448347107438016) internal successors, (2173), 968 states have internal predecessors, (2173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:50,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 969 states to 969 states and 2173 transitions. [2022-01-17 23:33:50,906 INFO L78 Accepts]: Start accepts. Automaton has 969 states and 2173 transitions. Word has length 137 [2022-01-17 23:33:50,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:33:50,906 INFO L470 AbstractCegarLoop]: Abstraction has 969 states and 2173 transitions. [2022-01-17 23:33:50,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:50,906 INFO L276 IsEmpty]: Start isEmpty. Operand 969 states and 2173 transitions. [2022-01-17 23:33:50,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:33:50,907 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:33:50,907 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:33:50,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable294 [2022-01-17 23:33:50,908 INFO L402 AbstractCegarLoop]: === Iteration 296 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:33:50,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:33:50,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1265230299, now seen corresponding path program 252 times [2022-01-17 23:33:50,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:33:50,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888908116] [2022-01-17 23:33:50,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:33:50,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:33:50,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:33:51,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:33:51,446 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:33:51,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888908116] [2022-01-17 23:33:51,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888908116] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:33:51,446 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:33:51,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-17 23:33:51,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966407257] [2022-01-17 23:33:51,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:33:51,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-17 23:33:51,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:33:51,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-17 23:33:51,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2022-01-17 23:33:51,447 INFO L87 Difference]: Start difference. First operand 969 states and 2173 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:52,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:33:52,821 INFO L93 Difference]: Finished difference Result 1105 states and 2421 transitions. [2022-01-17 23:33:52,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:33:52,821 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:33:52,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:33:52,822 INFO L225 Difference]: With dead ends: 1105 [2022-01-17 23:33:52,822 INFO L226 Difference]: Without dead ends: 961 [2022-01-17 23:33:52,823 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 474 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=501, Invalid=2255, Unknown=0, NotChecked=0, Total=2756 [2022-01-17 23:33:52,823 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 976 mSDsluCounter, 2157 mSDsCounter, 0 mSdLazyCounter, 1033 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 976 SdHoareTripleChecker+Valid, 2262 SdHoareTripleChecker+Invalid, 1130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 1033 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:33:52,823 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [976 Valid, 2262 Invalid, 1130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 1033 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:33:52,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states. [2022-01-17 23:33:52,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 961. [2022-01-17 23:33:52,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 961 states, 960 states have (on average 2.246875) internal successors, (2157), 960 states have internal predecessors, (2157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:52,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 961 states to 961 states and 2157 transitions. [2022-01-17 23:33:52,830 INFO L78 Accepts]: Start accepts. Automaton has 961 states and 2157 transitions. Word has length 137 [2022-01-17 23:33:52,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:33:52,831 INFO L470 AbstractCegarLoop]: Abstraction has 961 states and 2157 transitions. [2022-01-17 23:33:52,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:52,831 INFO L276 IsEmpty]: Start isEmpty. Operand 961 states and 2157 transitions. [2022-01-17 23:33:52,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:33:52,832 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:33:52,832 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:33:52,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable295 [2022-01-17 23:33:52,832 INFO L402 AbstractCegarLoop]: === Iteration 297 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:33:52,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:33:52,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1572256567, now seen corresponding path program 253 times [2022-01-17 23:33:52,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:33:52,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248747437] [2022-01-17 23:33:52,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:33:52,832 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:33:52,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:33:53,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:33:53,491 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:33:53,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248747437] [2022-01-17 23:33:53,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248747437] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:33:53,491 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:33:53,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-17 23:33:53,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810241454] [2022-01-17 23:33:53,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:33:53,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-17 23:33:53,491 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:33:53,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-17 23:33:53,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=834, Unknown=0, NotChecked=0, Total=930 [2022-01-17 23:33:53,491 INFO L87 Difference]: Start difference. First operand 961 states and 2157 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:55,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:33:55,376 INFO L93 Difference]: Finished difference Result 1106 states and 2425 transitions. [2022-01-17 23:33:55,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:33:55,376 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:33:55,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:33:55,377 INFO L225 Difference]: With dead ends: 1106 [2022-01-17 23:33:55,377 INFO L226 Difference]: Without dead ends: 972 [2022-01-17 23:33:55,378 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 625 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=553, Invalid=2639, Unknown=0, NotChecked=0, Total=3192 [2022-01-17 23:33:55,378 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 1306 mSDsluCounter, 2277 mSDsCounter, 0 mSdLazyCounter, 1074 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1306 SdHoareTripleChecker+Valid, 2398 SdHoareTripleChecker+Invalid, 1220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 1074 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:33:55,378 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1306 Valid, 2398 Invalid, 1220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 1074 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:33:55,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 972 states. [2022-01-17 23:33:55,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 972 to 961. [2022-01-17 23:33:55,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 961 states, 960 states have (on average 2.232291666666667) internal successors, (2143), 960 states have internal predecessors, (2143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:55,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 961 states to 961 states and 2143 transitions. [2022-01-17 23:33:55,385 INFO L78 Accepts]: Start accepts. Automaton has 961 states and 2143 transitions. Word has length 137 [2022-01-17 23:33:55,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:33:55,385 INFO L470 AbstractCegarLoop]: Abstraction has 961 states and 2143 transitions. [2022-01-17 23:33:55,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:55,386 INFO L276 IsEmpty]: Start isEmpty. Operand 961 states and 2143 transitions. [2022-01-17 23:33:55,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:33:55,386 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:33:55,386 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:33:55,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable296 [2022-01-17 23:33:55,387 INFO L402 AbstractCegarLoop]: === Iteration 298 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:33:55,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:33:55,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1330699813, now seen corresponding path program 254 times [2022-01-17 23:33:55,387 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:33:55,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292581756] [2022-01-17 23:33:55,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:33:55,387 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:33:55,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:33:55,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:33:55,978 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:33:55,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292581756] [2022-01-17 23:33:55,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292581756] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:33:55,978 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:33:55,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-17 23:33:55,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114296076] [2022-01-17 23:33:55,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:33:55,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-17 23:33:55,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:33:55,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-17 23:33:55,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=793, Unknown=0, NotChecked=0, Total=870 [2022-01-17 23:33:55,979 INFO L87 Difference]: Start difference. First operand 961 states and 2143 transitions. Second operand has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:57,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:33:57,694 INFO L93 Difference]: Finished difference Result 1125 states and 2424 transitions. [2022-01-17 23:33:57,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-17 23:33:57,694 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:33:57,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:33:57,695 INFO L225 Difference]: With dead ends: 1125 [2022-01-17 23:33:57,695 INFO L226 Difference]: Without dead ends: 542 [2022-01-17 23:33:57,695 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 681 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=611, Invalid=2929, Unknown=0, NotChecked=0, Total=3540 [2022-01-17 23:33:57,695 INFO L933 BasicCegarLoop]: 210 mSDtfsCounter, 1449 mSDsluCounter, 2475 mSDsCounter, 0 mSdLazyCounter, 1001 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1449 SdHoareTripleChecker+Valid, 2620 SdHoareTripleChecker+Invalid, 1172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 1001 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:33:57,695 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1449 Valid, 2620 Invalid, 1172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 1001 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:33:57,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2022-01-17 23:33:57,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 513. [2022-01-17 23:33:57,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 512 states have (on average 1.970703125) internal successors, (1009), 512 states have internal predecessors, (1009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:57,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 1009 transitions. [2022-01-17 23:33:57,699 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 1009 transitions. Word has length 137 [2022-01-17 23:33:57,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:33:57,699 INFO L470 AbstractCegarLoop]: Abstraction has 513 states and 1009 transitions. [2022-01-17 23:33:57,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:33:57,699 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 1009 transitions. [2022-01-17 23:33:57,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-17 23:33:57,700 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:33:57,700 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:33:57,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable297 [2022-01-17 23:33:57,700 INFO L402 AbstractCegarLoop]: === Iteration 299 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:33:57,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:33:57,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1810057369, now seen corresponding path program 255 times [2022-01-17 23:33:57,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:33:57,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134138734] [2022-01-17 23:33:57,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:33:57,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:33:57,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:33:58,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:33:58,420 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:33:58,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134138734] [2022-01-17 23:33:58,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134138734] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:33:58,420 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:33:58,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-17 23:33:58,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585871400] [2022-01-17 23:33:58,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:33:58,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-17 23:33:58,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:33:58,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-17 23:33:58,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=1007, Unknown=0, NotChecked=0, Total=1122 [2022-01-17 23:33:58,421 INFO L87 Difference]: Start difference. First operand 513 states and 1009 transitions. Second operand has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:34:00,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:34:00,023 INFO L93 Difference]: Finished difference Result 511 states and 1007 transitions. [2022-01-17 23:34:00,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:34:00,023 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-17 23:34:00,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:34:00,023 INFO L225 Difference]: With dead ends: 511 [2022-01-17 23:34:00,023 INFO L226 Difference]: Without dead ends: 0 [2022-01-17 23:34:00,024 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 685 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=575, Invalid=2847, Unknown=0, NotChecked=0, Total=3422 [2022-01-17 23:34:00,024 INFO L933 BasicCegarLoop]: 164 mSDtfsCounter, 1384 mSDsluCounter, 2163 mSDsCounter, 0 mSdLazyCounter, 963 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1384 SdHoareTripleChecker+Valid, 2263 SdHoareTripleChecker+Invalid, 1121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:34:00,024 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1384 Valid, 2263 Invalid, 1121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 963 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:34:00,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-17 23:34:00,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-17 23:34:00,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:34:00,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-17 23:34:00,025 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 137 [2022-01-17 23:34:00,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:34:00,025 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-17 23:34:00,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:34:00,025 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-17 23:34:00,025 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-17 23:34:00,027 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 8 remaining) [2022-01-17 23:34:00,027 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (6 of 8 remaining) [2022-01-17 23:34:00,027 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (5 of 8 remaining) [2022-01-17 23:34:00,027 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2022-01-17 23:34:00,027 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 8 remaining) [2022-01-17 23:34:00,027 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining) [2022-01-17 23:34:00,027 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 8 remaining) [2022-01-17 23:34:00,027 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 8 remaining) [2022-01-17 23:34:00,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable298 [2022-01-17 23:34:00,029 INFO L732 BasicCegarLoop]: Path program histogram: [255, 39, 1, 1, 1, 1, 1] [2022-01-17 23:34:00,031 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-17 23:34:00,031 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-17 23:34:00,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.01 11:34:00 BasicIcfg [2022-01-17 23:34:00,033 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-17 23:34:00,033 INFO L158 Benchmark]: Toolchain (without parser) took 739341.22ms. Allocated memory was 362.8MB in the beginning and 2.1GB in the end (delta: 1.7GB). Free memory was 304.7MB in the beginning and 718.7MB in the end (delta: -414.0MB). Peak memory consumption was 1.3GB. Max. memory is 16.0GB. [2022-01-17 23:34:00,033 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 362.8MB. Free memory was 325.2MB in the beginning and 325.2MB in the end (delta: 69.5kB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-17 23:34:00,033 INFO L158 Benchmark]: CACSL2BoogieTranslator took 674.00ms. Allocated memory was 362.8MB in the beginning and 436.2MB in the end (delta: 73.4MB). Free memory was 304.5MB in the beginning and 365.5MB in the end (delta: -61.0MB). Peak memory consumption was 15.8MB. Max. memory is 16.0GB. [2022-01-17 23:34:00,036 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.67ms. Allocated memory is still 436.2MB. Free memory was 365.5MB in the beginning and 362.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-17 23:34:00,045 INFO L158 Benchmark]: Boogie Preprocessor took 38.33ms. Allocated memory is still 436.2MB. Free memory was 362.3MB in the beginning and 359.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2022-01-17 23:34:00,045 INFO L158 Benchmark]: RCFGBuilder took 378.36ms. Allocated memory is still 436.2MB. Free memory was 359.2MB in the beginning and 337.2MB in the end (delta: 22.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2022-01-17 23:34:00,045 INFO L158 Benchmark]: TraceAbstraction took 738188.27ms. Allocated memory was 436.2MB in the beginning and 2.1GB in the end (delta: 1.7GB). Free memory was 337.2MB in the beginning and 718.7MB in the end (delta: -381.5MB). Peak memory consumption was 1.3GB. Max. memory is 16.0GB. [2022-01-17 23:34:00,048 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 362.8MB. Free memory was 325.2MB in the beginning and 325.2MB in the end (delta: 69.5kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 674.00ms. Allocated memory was 362.8MB in the beginning and 436.2MB in the end (delta: 73.4MB). Free memory was 304.5MB in the beginning and 365.5MB in the end (delta: -61.0MB). Peak memory consumption was 15.8MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 57.67ms. Allocated memory is still 436.2MB. Free memory was 365.5MB in the beginning and 362.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 38.33ms. Allocated memory is still 436.2MB. Free memory was 362.3MB in the beginning and 359.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * RCFGBuilder took 378.36ms. Allocated memory is still 436.2MB. Free memory was 359.2MB in the beginning and 337.2MB in the end (delta: 22.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * TraceAbstraction took 738188.27ms. Allocated memory was 436.2MB in the beginning and 2.1GB in the end (delta: 1.7GB). Free memory was 337.2MB in the beginning and 718.7MB in the end (delta: -381.5MB). Peak memory consumption was 1.3GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 202 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 738.1s, OverallIterations: 299, TraceHistogramMax: 1, PathProgramHistogramMax: 255, EmptinessCheckTime: 0.8s, AutomataDifference: 529.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 319213 SdHoareTripleChecker+Valid, 152.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 319213 mSDsluCounter, 722787 SdHoareTripleChecker+Invalid, 130.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 688642 mSDsCounter, 29291 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 368196 IncrementalHoareTripleChecker+Invalid, 397487 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29291 mSolverCounterUnsat, 55223 mSDtfsCounter, 368196 mSolverCounterSat, 1.6s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17126 GetRequests, 1403 SyntacticMatches, 275 SemanticMatches, 15448 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164721 ImplicationChecksByTransitivity, 462.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10010occurred in iteration=4, InterpolantAutomatonStates: 9414, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 8.9s AutomataMinimizationTime, 299 MinimizatonAttempts, 105897 StatesRemovedByMinimization, 283 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 4.6s SatisfiabilityAnalysisTime, 187.8s InterpolantComputationTime, 40320 NumberOfCodeBlocks, 40320 NumberOfCodeBlocksAsserted, 299 NumberOfCheckSat, 40021 ConstructedInterpolants, 0 QuantifiedInterpolants, 893416 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 299 InterpolantComputations, 299 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-01-17 23:34:00,091 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...