/usr/bin/java -Xmx8000000000 -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-2_2-container_of.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-8a14012e553caa636f65c1137831746b6d9875cd-8a14012 [2021-08-06 13:52:42,418 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-06 13:52:42,420 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-06 13:52:42,442 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-06 13:52:42,488 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 [2021-08-06 13:52:42,516 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-06 13:52:42,516 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-06 13:52:42,516 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-06 13:52:42,517 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-06 13:52:42,518 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-06 13:52:42,518 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-06 13:52:42,518 INFO L138 SettingsManager]: * Use SBE=true [2021-08-06 13:52:42,518 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-06 13:52:42,518 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-06 13:52:42,518 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-06 13:52:42,518 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-06 13:52:42,519 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-06 13:52:42,519 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-06 13:52:42,519 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-06 13:52:42,519 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-06 13:52:42,519 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-06 13:52:42,519 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-06 13:52:42,519 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-06 13:52:42,519 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-06 13:52:42,520 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-06 13:52:42,520 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-06 13:52:42,520 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-06 13:52:42,520 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-06 13:52:42,520 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-06 13:52:42,520 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-06 13:52:42,520 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-06 13:52:42,520 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-06 13:52:42,521 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-06 13:52:42,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-06 13:52:42,521 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-06 13:52:42,521 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-06 13:52:42,521 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-06 13:52:42,792 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-06 13:52:42,818 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-06 13:52:42,819 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-06 13:52:42,820 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-06 13:52:42,821 INFO L275 PluginConnector]: CDTParser initialized [2021-08-06 13:52:42,822 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_2-container_of.i [2021-08-06 13:52:42,875 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/237e7a9c4/902c2036eb804ca7b1bb71ac54c6388b/FLAGed2316248 [2021-08-06 13:52:43,321 INFO L306 CDTParser]: Found 1 translation units. [2021-08-06 13:52:43,322 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_2-container_of.i [2021-08-06 13:52:43,342 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/237e7a9c4/902c2036eb804ca7b1bb71ac54c6388b/FLAGed2316248 [2021-08-06 13:52:43,355 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/237e7a9c4/902c2036eb804ca7b1bb71ac54c6388b [2021-08-06 13:52:43,357 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-06 13:52:43,359 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-06 13:52:43,360 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-06 13:52:43,360 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-06 13:52:43,363 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-06 13:52:43,363 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.08 01:52:43" (1/1) ... [2021-08-06 13:52:43,365 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c5da3c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:52:43, skipping insertion in model container [2021-08-06 13:52:43,365 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.08 01:52:43" (1/1) ... [2021-08-06 13:52:43,369 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-06 13:52:43,415 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-06 13:52:43,541 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-08-06 13:52:44,007 WARN L224 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-2_2-container_of.i[75002,75015] [2021-08-06 13:52:44,033 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-06 13:52:44,044 INFO L203 MainTranslator]: Completed pre-run [2021-08-06 13:52:44,052 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-08-06 13:52:44,082 WARN L224 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-2_2-container_of.i[75002,75015] [2021-08-06 13:52:44,094 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-06 13:52:44,186 INFO L208 MainTranslator]: Completed translation [2021-08-06 13:52:44,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:52:44 WrapperNode [2021-08-06 13:52:44,186 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-06 13:52:44,187 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-06 13:52:44,187 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-06 13:52:44,187 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-06 13:52:44,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:52:44" (1/1) ... [2021-08-06 13:52:44,223 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:52:44" (1/1) ... [2021-08-06 13:52:44,251 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-06 13:52:44,252 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-06 13:52:44,252 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-06 13:52:44,252 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-06 13:52:44,258 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:52:44" (1/1) ... [2021-08-06 13:52:44,258 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:52:44" (1/1) ... [2021-08-06 13:52:44,260 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:52:44" (1/1) ... [2021-08-06 13:52:44,261 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:52:44" (1/1) ... [2021-08-06 13:52:44,270 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:52:44" (1/1) ... [2021-08-06 13:52:44,272 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:52:44" (1/1) ... [2021-08-06 13:52:44,276 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:52:44" (1/1) ... [2021-08-06 13:52:44,279 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-06 13:52:44,280 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-06 13:52:44,280 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-06 13:52:44,280 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-06 13:52:44,281 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:52:44" (1/1) ... [2021-08-06 13:52:44,287 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-06 13:52:44,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-06 13:52:44,310 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) [2021-08-06 13:52:44,329 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 [2021-08-06 13:52:44,349 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-06 13:52:44,350 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-06 13:52:44,350 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-06 13:52:44,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-06 13:52:44,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-08-06 13:52:44,350 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-06 13:52:44,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-06 13:52:44,350 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2021-08-06 13:52:44,351 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2021-08-06 13:52:44,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-06 13:52:44,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-06 13:52:44,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-06 13:52:44,352 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-06 13:52:44,932 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-06 13:52:44,933 INFO L299 CfgBuilder]: Removed 20 assume(true) statements. [2021-08-06 13:52:44,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 01:52:44 BoogieIcfgContainer [2021-08-06 13:52:44,934 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-06 13:52:44,936 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-06 13:52:44,936 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-06 13:52:44,938 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-06 13:52:44,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.08 01:52:43" (1/3) ... [2021-08-06 13:52:44,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7026257b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.08 01:52:44, skipping insertion in model container [2021-08-06 13:52:44,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:52:44" (2/3) ... [2021-08-06 13:52:44,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7026257b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.08 01:52:44, skipping insertion in model container [2021-08-06 13:52:44,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 01:52:44" (3/3) ... [2021-08-06 13:52:44,940 INFO L111 eAbstractionObserver]: Analyzing ICFG race-2_2-container_of.i [2021-08-06 13:52:44,943 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-06 13:52:44,943 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-06 13:52:44,943 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-08-06 13:52:44,943 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-06 13:52:44,967 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,967 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,967 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,967 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,968 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,968 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,968 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,968 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,968 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,968 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,968 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,968 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,969 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,969 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,969 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,969 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,969 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,969 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,969 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,969 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,969 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,969 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,970 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,970 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,970 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,970 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,970 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,970 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,970 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,970 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,970 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,970 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,971 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,971 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,971 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,971 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,971 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,971 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,971 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,971 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,971 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,972 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,972 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,972 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,972 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,972 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,972 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,972 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,972 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,972 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,972 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,972 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,973 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,973 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,973 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,973 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,973 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,973 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,973 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,973 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,973 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,974 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,974 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,974 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,974 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,974 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,974 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,974 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,974 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,974 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,974 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,974 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,975 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,975 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,975 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,975 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,975 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,975 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,975 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,975 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,975 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,975 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,976 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,976 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,976 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,976 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,976 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,976 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,976 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,976 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,976 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,976 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,976 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,977 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,977 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,977 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,977 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,977 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,977 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,977 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,977 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,978 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,978 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,978 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,978 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,978 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,978 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,978 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,978 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,978 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,978 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,979 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,979 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,979 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,979 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,979 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,981 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,981 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,981 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,982 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,982 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,982 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,982 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,982 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,982 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,982 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,982 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,983 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,987 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,987 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,987 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,987 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,987 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,987 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,988 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,988 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,988 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,988 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,988 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:44,988 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:52:45,013 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-08-06 13:52:45,048 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-08-06 13:52:45,052 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, mConcurrency=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 [2021-08-06 13:52:45,052 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-08-06 13:52:45,060 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 141 places, 143 transitions, 308 flow [2021-08-06 13:52:45,199 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5107 states, 5099 states have (on average 2.7834869582271033) internal successors, (14193), 5106 states have internal predecessors, (14193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:52:45,217 INFO L276 IsEmpty]: Start isEmpty. Operand has 5107 states, 5099 states have (on average 2.7834869582271033) internal successors, (14193), 5106 states have internal predecessors, (14193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:52:45,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-08-06 13:52:45,224 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:52:45,225 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:52:45,226 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:52:45,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:52:45,230 INFO L82 PathProgramCache]: Analyzing trace with hash 1601756939, now seen corresponding path program 1 times [2021-08-06 13:52:45,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:52:45,237 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209713608] [2021-08-06 13:52:45,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:52:45,237 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:52:45,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:52:45,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:52:45,682 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:52:45,682 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209713608] [2021-08-06 13:52:45,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209713608] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:52:45,683 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:52:45,683 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-06 13:52:45,684 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488079654] [2021-08-06 13:52:45,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-06 13:52:45,688 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:52:45,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-06 13:52:45,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-06 13:52:45,712 INFO L87 Difference]: Start difference. First operand has 5107 states, 5099 states have (on average 2.7834869582271033) internal successors, (14193), 5106 states have internal predecessors, (14193), 0 states have call successors, (0), 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 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:52:46,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:52:46,224 INFO L93 Difference]: Finished difference Result 6833 states and 18642 transitions. [2021-08-06 13:52:46,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-06 13:52:46,225 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-08-06 13:52:46,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:52:46,270 INFO L225 Difference]: With dead ends: 6833 [2021-08-06 13:52:46,270 INFO L226 Difference]: Without dead ends: 5725 [2021-08-06 13:52:46,271 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 142.7ms TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-08-06 13:52:46,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5725 states. [2021-08-06 13:52:46,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5725 to 4445. [2021-08-06 13:52:46,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4445 states, 4440 states have (on average 2.713963963963964) internal successors, (12050), 4444 states have internal predecessors, (12050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:52:46,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4445 states to 4445 states and 12050 transitions. [2021-08-06 13:52:46,440 INFO L78 Accepts]: Start accepts. Automaton has 4445 states and 12050 transitions. Word has length 48 [2021-08-06 13:52:46,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:52:46,441 INFO L470 AbstractCegarLoop]: Abstraction has 4445 states and 12050 transitions. [2021-08-06 13:52:46,441 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:52:46,441 INFO L276 IsEmpty]: Start isEmpty. Operand 4445 states and 12050 transitions. [2021-08-06 13:52:46,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-08-06 13:52:46,444 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:52:46,444 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:52:46,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-06 13:52:46,444 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:52:46,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:52:46,445 INFO L82 PathProgramCache]: Analyzing trace with hash 350998619, now seen corresponding path program 1 times [2021-08-06 13:52:46,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:52:46,445 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778233852] [2021-08-06 13:52:46,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:52:46,445 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:52:46,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:52:46,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:52:46,526 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:52:46,526 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778233852] [2021-08-06 13:52:46,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778233852] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:52:46,526 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:52:46,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-06 13:52:46,527 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275588904] [2021-08-06 13:52:46,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-06 13:52:46,527 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:52:46,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-06 13:52:46,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-06 13:52:46,528 INFO L87 Difference]: Start difference. First operand 4445 states and 12050 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:52:46,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:52:46,803 INFO L93 Difference]: Finished difference Result 6161 states and 16560 transitions. [2021-08-06 13:52:46,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-06 13:52:46,804 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-08-06 13:52:46,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:52:46,823 INFO L225 Difference]: With dead ends: 6161 [2021-08-06 13:52:46,823 INFO L226 Difference]: Without dead ends: 5231 [2021-08-06 13:52:46,823 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 58.2ms TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-08-06 13:52:46,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5231 states. [2021-08-06 13:52:46,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5231 to 5061. [2021-08-06 13:52:46,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5061 states, 5057 states have (on average 2.716630413288511) internal successors, (13738), 5060 states have internal predecessors, (13738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:52:46,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5061 states to 5061 states and 13738 transitions. [2021-08-06 13:52:46,939 INFO L78 Accepts]: Start accepts. Automaton has 5061 states and 13738 transitions. Word has length 54 [2021-08-06 13:52:46,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:52:46,939 INFO L470 AbstractCegarLoop]: Abstraction has 5061 states and 13738 transitions. [2021-08-06 13:52:46,940 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:52:46,940 INFO L276 IsEmpty]: Start isEmpty. Operand 5061 states and 13738 transitions. [2021-08-06 13:52:46,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-08-06 13:52:46,946 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:52:46,946 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:52:46,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-06 13:52:46,946 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:52:46,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:52:46,947 INFO L82 PathProgramCache]: Analyzing trace with hash -1372281656, now seen corresponding path program 1 times [2021-08-06 13:52:46,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:52:46,947 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144020066] [2021-08-06 13:52:46,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:52:46,947 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:52:46,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:52:47,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:52:47,024 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:52:47,024 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144020066] [2021-08-06 13:52:47,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144020066] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:52:47,024 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:52:47,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-06 13:52:47,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710613399] [2021-08-06 13:52:47,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-06 13:52:47,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:52:47,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-06 13:52:47,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-06 13:52:47,026 INFO L87 Difference]: Start difference. First operand 5061 states and 13738 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:52:47,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:52:47,063 INFO L93 Difference]: Finished difference Result 1928 states and 5048 transitions. [2021-08-06 13:52:47,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-06 13:52:47,064 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-08-06 13:52:47,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:52:47,071 INFO L225 Difference]: With dead ends: 1928 [2021-08-06 13:52:47,071 INFO L226 Difference]: Without dead ends: 1928 [2021-08-06 13:52:47,071 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 23.8ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-08-06 13:52:47,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1928 states. [2021-08-06 13:52:47,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1928 to 1928. [2021-08-06 13:52:47,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1928 states, 1926 states have (on average 2.6209761163032192) internal successors, (5048), 1927 states have internal predecessors, (5048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:52:47,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1928 states to 1928 states and 5048 transitions. [2021-08-06 13:52:47,104 INFO L78 Accepts]: Start accepts. Automaton has 1928 states and 5048 transitions. Word has length 66 [2021-08-06 13:52:47,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:52:47,105 INFO L470 AbstractCegarLoop]: Abstraction has 1928 states and 5048 transitions. [2021-08-06 13:52:47,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:52:47,105 INFO L276 IsEmpty]: Start isEmpty. Operand 1928 states and 5048 transitions. [2021-08-06 13:52:47,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:52:47,111 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:52:47,111 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:52:47,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-06 13:52:47,112 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:52:47,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:52:47,113 INFO L82 PathProgramCache]: Analyzing trace with hash 1489108937, now seen corresponding path program 1 times [2021-08-06 13:52:47,113 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:52:47,116 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776069323] [2021-08-06 13:52:47,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:52:47,116 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:52:47,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:52:47,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:52:47,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:52:47,861 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776069323] [2021-08-06 13:52:47,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776069323] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:52:47,862 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:52:47,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-08-06 13:52:47,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968177129] [2021-08-06 13:52:47,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-08-06 13:52:47,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:52:47,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-08-06 13:52:47,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2021-08-06 13:52:47,863 INFO L87 Difference]: Start difference. First operand 1928 states and 5048 transitions. Second operand has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:52:49,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:52:49,039 INFO L93 Difference]: Finished difference Result 2375 states and 6018 transitions. [2021-08-06 13:52:49,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-06 13:52:49,039 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:52:49,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:52:49,046 INFO L225 Difference]: With dead ends: 2375 [2021-08-06 13:52:49,047 INFO L226 Difference]: Without dead ends: 2375 [2021-08-06 13:52:49,047 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 966.2ms TimeCoverageRelationStatistics Valid=311, Invalid=745, Unknown=0, NotChecked=0, Total=1056 [2021-08-06 13:52:49,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2375 states. [2021-08-06 13:52:49,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2375 to 2188. [2021-08-06 13:52:49,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2188 states, 2186 states have (on average 2.5768526989935956) internal successors, (5633), 2187 states have internal predecessors, (5633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:52:49,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2188 states to 2188 states and 5633 transitions. [2021-08-06 13:52:49,083 INFO L78 Accepts]: Start accepts. Automaton has 2188 states and 5633 transitions. Word has length 94 [2021-08-06 13:52:49,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:52:49,083 INFO L470 AbstractCegarLoop]: Abstraction has 2188 states and 5633 transitions. [2021-08-06 13:52:49,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:52:49,083 INFO L276 IsEmpty]: Start isEmpty. Operand 2188 states and 5633 transitions. [2021-08-06 13:52:49,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:52:49,087 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:52:49,087 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:52:49,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-06 13:52:49,088 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:52:49,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:52:49,088 INFO L82 PathProgramCache]: Analyzing trace with hash -108601423, now seen corresponding path program 2 times [2021-08-06 13:52:49,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:52:49,088 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473104209] [2021-08-06 13:52:49,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:52:49,088 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:52:49,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:52:49,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:52:49,645 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:52:49,645 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473104209] [2021-08-06 13:52:49,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473104209] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:52:49,646 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:52:49,646 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-08-06 13:52:49,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875121959] [2021-08-06 13:52:49,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-08-06 13:52:49,646 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:52:49,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-08-06 13:52:49,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2021-08-06 13:52:49,647 INFO L87 Difference]: Start difference. First operand 2188 states and 5633 transitions. Second operand has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:52:50,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:52:50,836 INFO L93 Difference]: Finished difference Result 2572 states and 6372 transitions. [2021-08-06 13:52:50,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-08-06 13:52:50,836 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:52:50,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:52:50,845 INFO L225 Difference]: With dead ends: 2572 [2021-08-06 13:52:50,845 INFO L226 Difference]: Without dead ends: 2572 [2021-08-06 13:52:50,845 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 973.6ms TimeCoverageRelationStatistics Valid=340, Invalid=850, Unknown=0, NotChecked=0, Total=1190 [2021-08-06 13:52:50,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2572 states. [2021-08-06 13:52:50,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2572 to 2215. [2021-08-06 13:52:50,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2215 states, 2213 states have (on average 2.5738816086760052) internal successors, (5696), 2214 states have internal predecessors, (5696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:52:50,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2215 states to 2215 states and 5696 transitions. [2021-08-06 13:52:50,884 INFO L78 Accepts]: Start accepts. Automaton has 2215 states and 5696 transitions. Word has length 94 [2021-08-06 13:52:50,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:52:50,884 INFO L470 AbstractCegarLoop]: Abstraction has 2215 states and 5696 transitions. [2021-08-06 13:52:50,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:52:50,884 INFO L276 IsEmpty]: Start isEmpty. Operand 2215 states and 5696 transitions. [2021-08-06 13:52:50,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:52:50,888 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:52:50,888 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:52:50,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-06 13:52:50,888 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:52:50,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:52:50,889 INFO L82 PathProgramCache]: Analyzing trace with hash -1594092727, now seen corresponding path program 3 times [2021-08-06 13:52:50,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:52:50,889 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129687200] [2021-08-06 13:52:50,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:52:50,889 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:52:50,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:52:51,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:52:51,437 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:52:51,437 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129687200] [2021-08-06 13:52:51,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129687200] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:52:51,437 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:52:51,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-08-06 13:52:51,437 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797252348] [2021-08-06 13:52:51,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-08-06 13:52:51,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:52:51,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-08-06 13:52:51,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2021-08-06 13:52:51,438 INFO L87 Difference]: Start difference. First operand 2215 states and 5696 transitions. Second operand has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:52:52,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:52:52,601 INFO L93 Difference]: Finished difference Result 2762 states and 6784 transitions. [2021-08-06 13:52:52,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-08-06 13:52:52,601 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:52:52,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:52:52,607 INFO L225 Difference]: With dead ends: 2762 [2021-08-06 13:52:52,607 INFO L226 Difference]: Without dead ends: 2762 [2021-08-06 13:52:52,608 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 996.2ms TimeCoverageRelationStatistics Valid=325, Invalid=865, Unknown=0, NotChecked=0, Total=1190 [2021-08-06 13:52:52,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2762 states. [2021-08-06 13:52:52,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2762 to 2242. [2021-08-06 13:52:52,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2242 states, 2240 states have (on average 2.570982142857143) internal successors, (5759), 2241 states have internal predecessors, (5759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:52:52,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2242 states to 2242 states and 5759 transitions. [2021-08-06 13:52:52,646 INFO L78 Accepts]: Start accepts. Automaton has 2242 states and 5759 transitions. Word has length 94 [2021-08-06 13:52:52,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:52:52,646 INFO L470 AbstractCegarLoop]: Abstraction has 2242 states and 5759 transitions. [2021-08-06 13:52:52,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:52:52,647 INFO L276 IsEmpty]: Start isEmpty. Operand 2242 states and 5759 transitions. [2021-08-06 13:52:52,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:52:52,657 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:52:52,657 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:52:52,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-06 13:52:52,658 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:52:52,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:52:52,659 INFO L82 PathProgramCache]: Analyzing trace with hash 2007292209, now seen corresponding path program 4 times [2021-08-06 13:52:52,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:52:52,659 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506521861] [2021-08-06 13:52:52,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:52:52,659 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:52:52,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:52:53,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:52:53,192 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:52:53,192 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506521861] [2021-08-06 13:52:53,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506521861] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:52:53,193 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:52:53,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-08-06 13:52:53,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160689642] [2021-08-06 13:52:53,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-08-06 13:52:53,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:52:53,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-08-06 13:52:53,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2021-08-06 13:52:53,194 INFO L87 Difference]: Start difference. First operand 2242 states and 5759 transitions. Second operand has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:52:54,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:52:54,299 INFO L93 Difference]: Finished difference Result 2843 states and 6973 transitions. [2021-08-06 13:52:54,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-08-06 13:52:54,301 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:52:54,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:52:54,305 INFO L225 Difference]: With dead ends: 2843 [2021-08-06 13:52:54,306 INFO L226 Difference]: Without dead ends: 2843 [2021-08-06 13:52:54,306 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 931.5ms TimeCoverageRelationStatistics Valid=310, Invalid=880, Unknown=0, NotChecked=0, Total=1190 [2021-08-06 13:52:54,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2843 states. [2021-08-06 13:52:54,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2843 to 2296. [2021-08-06 13:52:54,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2296 states, 2294 states have (on average 2.5653879686137753) internal successors, (5885), 2295 states have internal predecessors, (5885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:52:54,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2296 states to 2296 states and 5885 transitions. [2021-08-06 13:52:54,354 INFO L78 Accepts]: Start accepts. Automaton has 2296 states and 5885 transitions. Word has length 94 [2021-08-06 13:52:54,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:52:54,354 INFO L470 AbstractCegarLoop]: Abstraction has 2296 states and 5885 transitions. [2021-08-06 13:52:54,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:52:54,354 INFO L276 IsEmpty]: Start isEmpty. Operand 2296 states and 5885 transitions. [2021-08-06 13:52:54,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:52:54,358 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:52:54,358 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:52:54,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-06 13:52:54,359 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:52:54,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:52:54,359 INFO L82 PathProgramCache]: Analyzing trace with hash -998452559, now seen corresponding path program 5 times [2021-08-06 13:52:54,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:52:54,359 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959882342] [2021-08-06 13:52:54,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:52:54,359 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:52:54,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:52:54,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:52:54,831 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:52:54,831 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959882342] [2021-08-06 13:52:54,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959882342] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:52:54,831 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:52:54,831 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-08-06 13:52:54,831 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562927328] [2021-08-06 13:52:54,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-08-06 13:52:54,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:52:54,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-08-06 13:52:54,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2021-08-06 13:52:54,832 INFO L87 Difference]: Start difference. First operand 2296 states and 5885 transitions. Second operand has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:52:55,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:52:55,847 INFO L93 Difference]: Finished difference Result 2924 states and 7162 transitions. [2021-08-06 13:52:55,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-08-06 13:52:55,848 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:52:55,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:52:55,853 INFO L225 Difference]: With dead ends: 2924 [2021-08-06 13:52:55,853 INFO L226 Difference]: Without dead ends: 2924 [2021-08-06 13:52:55,854 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 843.2ms TimeCoverageRelationStatistics Valid=295, Invalid=895, Unknown=0, NotChecked=0, Total=1190 [2021-08-06 13:52:55,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2924 states. [2021-08-06 13:52:55,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2924 to 2323. [2021-08-06 13:52:55,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2323 states, 2321 states have (on average 2.5626884963377856) internal successors, (5948), 2322 states have internal predecessors, (5948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:52:55,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2323 states to 2323 states and 5948 transitions. [2021-08-06 13:52:55,894 INFO L78 Accepts]: Start accepts. Automaton has 2323 states and 5948 transitions. Word has length 94 [2021-08-06 13:52:55,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:52:55,895 INFO L470 AbstractCegarLoop]: Abstraction has 2323 states and 5948 transitions. [2021-08-06 13:52:55,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:52:55,895 INFO L276 IsEmpty]: Start isEmpty. Operand 2323 states and 5948 transitions. [2021-08-06 13:52:55,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:52:55,899 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:52:55,899 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:52:55,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-06 13:52:55,899 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:52:55,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:52:55,900 INFO L82 PathProgramCache]: Analyzing trace with hash 431104073, now seen corresponding path program 6 times [2021-08-06 13:52:55,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:52:55,905 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371469621] [2021-08-06 13:52:55,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:52:55,905 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:52:55,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:52:56,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:52:56,435 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:52:56,435 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371469621] [2021-08-06 13:52:56,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371469621] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:52:56,435 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:52:56,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-08-06 13:52:56,436 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227756124] [2021-08-06 13:52:56,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-08-06 13:52:56,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:52:56,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-08-06 13:52:56,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2021-08-06 13:52:56,437 INFO L87 Difference]: Start difference. First operand 2323 states and 5948 transitions. Second operand has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:52:57,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:52:57,376 INFO L93 Difference]: Finished difference Result 2606 states and 6496 transitions. [2021-08-06 13:52:57,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-06 13:52:57,377 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:52:57,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:52:57,381 INFO L225 Difference]: With dead ends: 2606 [2021-08-06 13:52:57,382 INFO L226 Difference]: Without dead ends: 2606 [2021-08-06 13:52:57,382 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 797.4ms TimeCoverageRelationStatistics Valid=280, Invalid=910, Unknown=0, NotChecked=0, Total=1190 [2021-08-06 13:52:57,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2606 states. [2021-08-06 13:52:57,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2606 to 2188. [2021-08-06 13:52:57,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2188 states, 2186 states have (on average 2.5768526989935956) internal successors, (5633), 2187 states have internal predecessors, (5633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:52:57,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2188 states to 2188 states and 5633 transitions. [2021-08-06 13:52:57,421 INFO L78 Accepts]: Start accepts. Automaton has 2188 states and 5633 transitions. Word has length 94 [2021-08-06 13:52:57,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:52:57,421 INFO L470 AbstractCegarLoop]: Abstraction has 2188 states and 5633 transitions. [2021-08-06 13:52:57,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:52:57,421 INFO L276 IsEmpty]: Start isEmpty. Operand 2188 states and 5633 transitions. [2021-08-06 13:52:57,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:52:57,426 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:52:57,426 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:52:57,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-06 13:52:57,427 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:52:57,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:52:57,427 INFO L82 PathProgramCache]: Analyzing trace with hash -1295500011, now seen corresponding path program 7 times [2021-08-06 13:52:57,427 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:52:57,427 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480023555] [2021-08-06 13:52:57,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:52:57,427 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:52:57,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:52:58,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:52:58,252 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:52:58,252 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480023555] [2021-08-06 13:52:58,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480023555] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:52:58,252 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:52:58,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:52:58,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438157042] [2021-08-06 13:52:58,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:52:58,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:52:58,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:52:58,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=522, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:52:58,254 INFO L87 Difference]: Start difference. First operand 2188 states and 5633 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:53:03,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:53:03,437 INFO L93 Difference]: Finished difference Result 4700 states and 11687 transitions. [2021-08-06 13:53:03,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-08-06 13:53:03,445 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:53:03,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:53:03,453 INFO L225 Difference]: With dead ends: 4700 [2021-08-06 13:53:03,453 INFO L226 Difference]: Without dead ends: 4700 [2021-08-06 13:53:03,454 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 393 ImplicationChecksByTransitivity, 4445.2ms TimeCoverageRelationStatistics Valid=1000, Invalid=2422, Unknown=0, NotChecked=0, Total=3422 [2021-08-06 13:53:03,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4700 states. [2021-08-06 13:53:03,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4700 to 2799. [2021-08-06 13:53:03,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2799 states, 2797 states have (on average 2.638541294243833) internal successors, (7380), 2798 states have internal predecessors, (7380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:53:03,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2799 states to 2799 states and 7380 transitions. [2021-08-06 13:53:03,514 INFO L78 Accepts]: Start accepts. Automaton has 2799 states and 7380 transitions. Word has length 94 [2021-08-06 13:53:03,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:53:03,514 INFO L470 AbstractCegarLoop]: Abstraction has 2799 states and 7380 transitions. [2021-08-06 13:53:03,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:53:03,514 INFO L276 IsEmpty]: Start isEmpty. Operand 2799 states and 7380 transitions. [2021-08-06 13:53:03,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:53:03,518 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:53:03,518 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:53:03,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-06 13:53:03,519 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:53:03,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:53:03,519 INFO L82 PathProgramCache]: Analyzing trace with hash 337362837, now seen corresponding path program 8 times [2021-08-06 13:53:03,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:53:03,519 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186391740] [2021-08-06 13:53:03,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:53:03,520 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:53:03,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:53:04,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:53:04,371 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:53:04,371 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186391740] [2021-08-06 13:53:04,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186391740] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:53:04,372 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:53:04,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:53:04,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186426062] [2021-08-06 13:53:04,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:53:04,373 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:53:04,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:53:04,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=526, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:53:04,374 INFO L87 Difference]: Start difference. First operand 2799 states and 7380 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:53:09,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:53:09,696 INFO L93 Difference]: Finished difference Result 4586 states and 11390 transitions. [2021-08-06 13:53:09,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-08-06 13:53:09,697 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:53:09,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:53:09,704 INFO L225 Difference]: With dead ends: 4586 [2021-08-06 13:53:09,704 INFO L226 Difference]: Without dead ends: 4586 [2021-08-06 13:53:09,705 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 4530.1ms TimeCoverageRelationStatistics Valid=994, Invalid=2546, Unknown=0, NotChecked=0, Total=3540 [2021-08-06 13:53:09,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4586 states. [2021-08-06 13:53:09,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4586 to 2777. [2021-08-06 13:53:09,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2777 states, 2775 states have (on average 2.6353153153153155) internal successors, (7313), 2776 states have internal predecessors, (7313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:53:09,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2777 states to 2777 states and 7313 transitions. [2021-08-06 13:53:09,781 INFO L78 Accepts]: Start accepts. Automaton has 2777 states and 7313 transitions. Word has length 94 [2021-08-06 13:53:09,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:53:09,781 INFO L470 AbstractCegarLoop]: Abstraction has 2777 states and 7313 transitions. [2021-08-06 13:53:09,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:53:09,782 INFO L276 IsEmpty]: Start isEmpty. Operand 2777 states and 7313 transitions. [2021-08-06 13:53:09,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:53:09,786 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:53:09,786 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:53:09,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-06 13:53:09,786 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:53:09,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:53:09,787 INFO L82 PathProgramCache]: Analyzing trace with hash 1408943357, now seen corresponding path program 9 times [2021-08-06 13:53:09,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:53:09,787 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851492867] [2021-08-06 13:53:09,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:53:09,787 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:53:09,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:53:10,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:53:10,547 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:53:10,547 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851492867] [2021-08-06 13:53:10,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851492867] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:53:10,547 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:53:10,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:53:10,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958726439] [2021-08-06 13:53:10,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:53:10,548 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:53:10,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:53:10,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=527, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:53:10,548 INFO L87 Difference]: Start difference. First operand 2777 states and 7313 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:53:15,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:53:15,699 INFO L93 Difference]: Finished difference Result 5215 states and 12837 transitions. [2021-08-06 13:53:15,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-08-06 13:53:15,700 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:53:15,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:53:15,707 INFO L225 Difference]: With dead ends: 5215 [2021-08-06 13:53:15,707 INFO L226 Difference]: Without dead ends: 5215 [2021-08-06 13:53:15,708 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 457 ImplicationChecksByTransitivity, 4370.5ms TimeCoverageRelationStatistics Valid=975, Invalid=2565, Unknown=0, NotChecked=0, Total=3540 [2021-08-06 13:53:15,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5215 states. [2021-08-06 13:53:15,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5215 to 2755. [2021-08-06 13:53:15,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2755 states, 2753 states have (on average 2.6320377769705776) internal successors, (7246), 2754 states have internal predecessors, (7246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:53:15,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2755 states to 2755 states and 7246 transitions. [2021-08-06 13:53:15,767 INFO L78 Accepts]: Start accepts. Automaton has 2755 states and 7246 transitions. Word has length 94 [2021-08-06 13:53:15,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:53:15,768 INFO L470 AbstractCegarLoop]: Abstraction has 2755 states and 7246 transitions. [2021-08-06 13:53:15,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:53:15,768 INFO L276 IsEmpty]: Start isEmpty. Operand 2755 states and 7246 transitions. [2021-08-06 13:53:15,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:53:15,772 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:53:15,772 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:53:15,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-08-06 13:53:15,773 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:53:15,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:53:15,773 INFO L82 PathProgramCache]: Analyzing trace with hash 1984517653, now seen corresponding path program 10 times [2021-08-06 13:53:15,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:53:15,773 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310637492] [2021-08-06 13:53:15,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:53:15,773 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:53:15,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:53:16,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:53:16,583 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:53:16,583 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310637492] [2021-08-06 13:53:16,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310637492] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:53:16,583 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:53:16,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:53:16,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483698255] [2021-08-06 13:53:16,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:53:16,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:53:16,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:53:16,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:53:16,584 INFO L87 Difference]: Start difference. First operand 2755 states and 7246 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:53:21,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:53:21,252 INFO L93 Difference]: Finished difference Result 5289 states and 13004 transitions. [2021-08-06 13:53:21,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-08-06 13:53:21,259 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:53:21,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:53:21,265 INFO L225 Difference]: With dead ends: 5289 [2021-08-06 13:53:21,266 INFO L226 Difference]: Without dead ends: 5289 [2021-08-06 13:53:21,266 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 446 ImplicationChecksByTransitivity, 4044.5ms TimeCoverageRelationStatistics Valid=925, Invalid=2497, Unknown=0, NotChecked=0, Total=3422 [2021-08-06 13:53:21,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5289 states. [2021-08-06 13:53:21,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5289 to 2711. [2021-08-06 13:53:21,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2711 states, 2709 states have (on average 2.6253229974160206) internal successors, (7112), 2710 states have internal predecessors, (7112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:53:21,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2711 states to 2711 states and 7112 transitions. [2021-08-06 13:53:21,324 INFO L78 Accepts]: Start accepts. Automaton has 2711 states and 7112 transitions. Word has length 94 [2021-08-06 13:53:21,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:53:21,325 INFO L470 AbstractCegarLoop]: Abstraction has 2711 states and 7112 transitions. [2021-08-06 13:53:21,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:53:21,325 INFO L276 IsEmpty]: Start isEmpty. Operand 2711 states and 7112 transitions. [2021-08-06 13:53:21,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:53:21,329 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:53:21,329 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:53:21,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-08-06 13:53:21,329 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:53:21,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:53:21,330 INFO L82 PathProgramCache]: Analyzing trace with hash -679678827, now seen corresponding path program 11 times [2021-08-06 13:53:21,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:53:21,330 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967797461] [2021-08-06 13:53:21,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:53:21,330 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:53:21,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:53:22,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:53:22,105 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:53:22,105 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967797461] [2021-08-06 13:53:22,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967797461] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:53:22,105 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:53:22,105 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:53:22,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602330669] [2021-08-06 13:53:22,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:53:22,106 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:53:22,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:53:22,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:53:22,107 INFO L87 Difference]: Start difference. First operand 2711 states and 7112 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:53:26,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:53:26,601 INFO L93 Difference]: Finished difference Result 5374 states and 13194 transitions. [2021-08-06 13:53:26,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-08-06 13:53:26,601 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:53:26,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:53:26,607 INFO L225 Difference]: With dead ends: 5374 [2021-08-06 13:53:26,608 INFO L226 Difference]: Without dead ends: 5374 [2021-08-06 13:53:26,609 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 3829.0ms TimeCoverageRelationStatistics Valid=877, Invalid=2429, Unknown=0, NotChecked=0, Total=3306 [2021-08-06 13:53:26,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5374 states. [2021-08-06 13:53:26,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5374 to 2689. [2021-08-06 13:53:26,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2689 states, 2687 states have (on average 2.6218831410494974) internal successors, (7045), 2688 states have internal predecessors, (7045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:53:26,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2689 states to 2689 states and 7045 transitions. [2021-08-06 13:53:26,656 INFO L78 Accepts]: Start accepts. Automaton has 2689 states and 7045 transitions. Word has length 94 [2021-08-06 13:53:26,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:53:26,656 INFO L470 AbstractCegarLoop]: Abstraction has 2689 states and 7045 transitions. [2021-08-06 13:53:26,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:53:26,656 INFO L276 IsEmpty]: Start isEmpty. Operand 2689 states and 7045 transitions. [2021-08-06 13:53:26,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:53:26,660 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:53:26,660 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:53:26,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-08-06 13:53:26,660 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:53:26,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:53:26,661 INFO L82 PathProgramCache]: Analyzing trace with hash -1653762051, now seen corresponding path program 12 times [2021-08-06 13:53:26,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:53:26,661 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508663908] [2021-08-06 13:53:26,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:53:26,661 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:53:26,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:53:27,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:53:27,392 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:53:27,392 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508663908] [2021-08-06 13:53:27,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508663908] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:53:27,392 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:53:27,392 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:53:27,393 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228968377] [2021-08-06 13:53:27,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:53:27,393 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:53:27,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:53:27,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:53:27,394 INFO L87 Difference]: Start difference. First operand 2689 states and 7045 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:53:31,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:53:31,472 INFO L93 Difference]: Finished difference Result 4971 states and 12362 transitions. [2021-08-06 13:53:31,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-08-06 13:53:31,472 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:53:31,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:53:31,478 INFO L225 Difference]: With dead ends: 4971 [2021-08-06 13:53:31,478 INFO L226 Difference]: Without dead ends: 4971 [2021-08-06 13:53:31,479 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 3521.8ms TimeCoverageRelationStatistics Valid=831, Invalid=2361, Unknown=0, NotChecked=0, Total=3192 [2021-08-06 13:53:31,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4971 states. [2021-08-06 13:53:31,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4971 to 2665. [2021-08-06 13:53:31,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2665 states, 2663 states have (on average 2.6188509200150207) internal successors, (6974), 2664 states have internal predecessors, (6974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:53:31,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2665 states to 2665 states and 6974 transitions. [2021-08-06 13:53:31,521 INFO L78 Accepts]: Start accepts. Automaton has 2665 states and 6974 transitions. Word has length 94 [2021-08-06 13:53:31,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:53:31,521 INFO L470 AbstractCegarLoop]: Abstraction has 2665 states and 6974 transitions. [2021-08-06 13:53:31,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:53:31,521 INFO L276 IsEmpty]: Start isEmpty. Operand 2665 states and 6974 transitions. [2021-08-06 13:53:31,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:53:31,525 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:53:31,525 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:53:31,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-08-06 13:53:31,526 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:53:31,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:53:31,526 INFO L82 PathProgramCache]: Analyzing trace with hash 567338889, now seen corresponding path program 13 times [2021-08-06 13:53:31,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:53:31,526 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889603177] [2021-08-06 13:53:31,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:53:31,526 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:53:31,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:53:31,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:53:31,929 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:53:31,930 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889603177] [2021-08-06 13:53:31,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889603177] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:53:31,930 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:53:31,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-08-06 13:53:31,930 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615400775] [2021-08-06 13:53:31,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-08-06 13:53:31,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:53:31,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-08-06 13:53:31,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2021-08-06 13:53:31,931 INFO L87 Difference]: Start difference. First operand 2665 states and 6974 transitions. Second operand has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:53:32,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:53:32,983 INFO L93 Difference]: Finished difference Result 3394 states and 8402 transitions. [2021-08-06 13:53:32,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-08-06 13:53:32,984 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:53:32,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:53:32,990 INFO L225 Difference]: With dead ends: 3394 [2021-08-06 13:53:32,990 INFO L226 Difference]: Without dead ends: 3394 [2021-08-06 13:53:32,991 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 889.2ms TimeCoverageRelationStatistics Valid=325, Invalid=865, Unknown=0, NotChecked=0, Total=1190 [2021-08-06 13:53:32,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3394 states. [2021-08-06 13:53:33,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3394 to 2708. [2021-08-06 13:53:33,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2708 states, 2706 states have (on average 2.61529933481153) internal successors, (7077), 2707 states have internal predecessors, (7077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:53:33,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2708 states to 2708 states and 7077 transitions. [2021-08-06 13:53:33,041 INFO L78 Accepts]: Start accepts. Automaton has 2708 states and 7077 transitions. Word has length 94 [2021-08-06 13:53:33,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:53:33,041 INFO L470 AbstractCegarLoop]: Abstraction has 2708 states and 7077 transitions. [2021-08-06 13:53:33,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:53:33,041 INFO L276 IsEmpty]: Start isEmpty. Operand 2708 states and 7077 transitions. [2021-08-06 13:53:33,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:53:33,046 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:53:33,046 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:53:33,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-08-06 13:53:33,046 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:53:33,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:53:33,046 INFO L82 PathProgramCache]: Analyzing trace with hash 1400784019, now seen corresponding path program 14 times [2021-08-06 13:53:33,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:53:33,047 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163057] [2021-08-06 13:53:33,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:53:33,047 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:53:33,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:53:33,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:53:33,473 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:53:33,473 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163057] [2021-08-06 13:53:33,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163057] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:53:33,473 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:53:33,473 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-08-06 13:53:33,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911817809] [2021-08-06 13:53:33,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-08-06 13:53:33,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:53:33,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-08-06 13:53:33,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2021-08-06 13:53:33,475 INFO L87 Difference]: Start difference. First operand 2708 states and 7077 transitions. Second operand has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:53:34,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:53:34,517 INFO L93 Difference]: Finished difference Result 4115 states and 10310 transitions. [2021-08-06 13:53:34,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-08-06 13:53:34,518 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:53:34,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:53:34,524 INFO L225 Difference]: With dead ends: 4115 [2021-08-06 13:53:34,524 INFO L226 Difference]: Without dead ends: 4115 [2021-08-06 13:53:34,524 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 859.6ms TimeCoverageRelationStatistics Valid=340, Invalid=850, Unknown=0, NotChecked=0, Total=1190 [2021-08-06 13:53:34,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4115 states. [2021-08-06 13:53:34,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4115 to 2672. [2021-08-06 13:53:34,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2672 states, 2670 states have (on average 2.614606741573034) internal successors, (6981), 2671 states have internal predecessors, (6981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:53:34,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2672 states to 2672 states and 6981 transitions. [2021-08-06 13:53:34,569 INFO L78 Accepts]: Start accepts. Automaton has 2672 states and 6981 transitions. Word has length 94 [2021-08-06 13:53:34,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:53:34,569 INFO L470 AbstractCegarLoop]: Abstraction has 2672 states and 6981 transitions. [2021-08-06 13:53:34,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:53:34,569 INFO L276 IsEmpty]: Start isEmpty. Operand 2672 states and 6981 transitions. [2021-08-06 13:53:34,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:53:34,573 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:53:34,573 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:53:34,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-08-06 13:53:34,573 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:53:34,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:53:34,573 INFO L82 PathProgramCache]: Analyzing trace with hash 1547638283, now seen corresponding path program 15 times [2021-08-06 13:53:34,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:53:34,574 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451126878] [2021-08-06 13:53:34,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:53:34,574 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:53:34,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:53:35,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:53:35,284 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:53:35,284 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451126878] [2021-08-06 13:53:35,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451126878] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:53:35,284 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:53:35,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:53:35,284 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871780208] [2021-08-06 13:53:35,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:53:35,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:53:35,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:53:35,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:53:35,285 INFO L87 Difference]: Start difference. First operand 2672 states and 6981 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:53:38,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:53:38,796 INFO L93 Difference]: Finished difference Result 4733 states and 11908 transitions. [2021-08-06 13:53:38,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-06 13:53:38,796 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:53:38,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:53:38,802 INFO L225 Difference]: With dead ends: 4733 [2021-08-06 13:53:38,802 INFO L226 Difference]: Without dead ends: 4733 [2021-08-06 13:53:38,802 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 3069.0ms TimeCoverageRelationStatistics Valid=554, Invalid=1516, Unknown=0, NotChecked=0, Total=2070 [2021-08-06 13:53:38,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4733 states. [2021-08-06 13:53:38,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4733 to 2774. [2021-08-06 13:53:38,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2774 states, 2772 states have (on average 2.6277056277056277) internal successors, (7284), 2773 states have internal predecessors, (7284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:53:38,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2774 states to 2774 states and 7284 transitions. [2021-08-06 13:53:38,843 INFO L78 Accepts]: Start accepts. Automaton has 2774 states and 7284 transitions. Word has length 94 [2021-08-06 13:53:38,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:53:38,843 INFO L470 AbstractCegarLoop]: Abstraction has 2774 states and 7284 transitions. [2021-08-06 13:53:38,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:53:38,843 INFO L276 IsEmpty]: Start isEmpty. Operand 2774 states and 7284 transitions. [2021-08-06 13:53:38,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:53:38,847 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:53:38,848 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:53:38,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-08-06 13:53:38,848 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:53:38,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:53:38,848 INFO L82 PathProgramCache]: Analyzing trace with hash 1505567937, now seen corresponding path program 16 times [2021-08-06 13:53:38,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:53:38,848 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143452150] [2021-08-06 13:53:38,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:53:38,849 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:53:38,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:53:39,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:53:39,574 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:53:39,574 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143452150] [2021-08-06 13:53:39,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143452150] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:53:39,574 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:53:39,574 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:53:39,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617290902] [2021-08-06 13:53:39,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:53:39,575 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:53:39,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:53:39,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:53:39,575 INFO L87 Difference]: Start difference. First operand 2774 states and 7284 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:53:42,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:53:42,951 INFO L93 Difference]: Finished difference Result 5405 states and 13685 transitions. [2021-08-06 13:53:42,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-06 13:53:42,951 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:53:42,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:53:42,958 INFO L225 Difference]: With dead ends: 5405 [2021-08-06 13:53:42,958 INFO L226 Difference]: Without dead ends: 5405 [2021-08-06 13:53:42,958 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 2899.3ms TimeCoverageRelationStatistics Valid=536, Invalid=1444, Unknown=0, NotChecked=0, Total=1980 [2021-08-06 13:53:42,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5405 states. [2021-08-06 13:53:42,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5405 to 2774. [2021-08-06 13:53:42,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2774 states, 2772 states have (on average 2.6277056277056277) internal successors, (7284), 2773 states have internal predecessors, (7284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:53:43,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2774 states to 2774 states and 7284 transitions. [2021-08-06 13:53:43,001 INFO L78 Accepts]: Start accepts. Automaton has 2774 states and 7284 transitions. Word has length 94 [2021-08-06 13:53:43,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:53:43,001 INFO L470 AbstractCegarLoop]: Abstraction has 2774 states and 7284 transitions. [2021-08-06 13:53:43,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:53:43,001 INFO L276 IsEmpty]: Start isEmpty. Operand 2774 states and 7284 transitions. [2021-08-06 13:53:43,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:53:43,005 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:53:43,005 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:53:43,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-08-06 13:53:43,016 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:53:43,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:53:43,017 INFO L82 PathProgramCache]: Analyzing trace with hash 1858081059, now seen corresponding path program 17 times [2021-08-06 13:53:43,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:53:43,017 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487246462] [2021-08-06 13:53:43,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:53:43,017 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:53:43,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:53:43,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:53:43,791 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:53:43,791 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487246462] [2021-08-06 13:53:43,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487246462] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:53:43,791 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:53:43,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:53:43,791 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652909140] [2021-08-06 13:53:43,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:53:43,792 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:53:43,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:53:43,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:53:43,793 INFO L87 Difference]: Start difference. First operand 2774 states and 7284 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:53:47,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:53:47,118 INFO L93 Difference]: Finished difference Result 5027 states and 12504 transitions. [2021-08-06 13:53:47,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-06 13:53:47,118 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:53:47,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:53:47,124 INFO L225 Difference]: With dead ends: 5027 [2021-08-06 13:53:47,124 INFO L226 Difference]: Without dead ends: 5027 [2021-08-06 13:53:47,125 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 2876.3ms TimeCoverageRelationStatistics Valid=539, Invalid=1531, Unknown=0, NotChecked=0, Total=2070 [2021-08-06 13:53:47,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5027 states. [2021-08-06 13:53:47,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5027 to 2776. [2021-08-06 13:53:47,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2776 states, 2774 states have (on average 2.6276135544340304) internal successors, (7289), 2775 states have internal predecessors, (7289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:53:47,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2776 states to 2776 states and 7289 transitions. [2021-08-06 13:53:47,181 INFO L78 Accepts]: Start accepts. Automaton has 2776 states and 7289 transitions. Word has length 94 [2021-08-06 13:53:47,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:53:47,182 INFO L470 AbstractCegarLoop]: Abstraction has 2776 states and 7289 transitions. [2021-08-06 13:53:47,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:53:47,182 INFO L276 IsEmpty]: Start isEmpty. Operand 2776 states and 7289 transitions. [2021-08-06 13:53:47,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:53:47,185 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:53:47,185 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:53:47,185 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-08-06 13:53:47,186 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:53:47,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:53:47,186 INFO L82 PathProgramCache]: Analyzing trace with hash -1865067663, now seen corresponding path program 18 times [2021-08-06 13:53:47,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:53:47,186 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111193623] [2021-08-06 13:53:47,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:53:47,186 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:53:47,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:53:47,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:53:47,912 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:53:47,912 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111193623] [2021-08-06 13:53:47,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111193623] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:53:47,912 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:53:47,912 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:53:47,913 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411562449] [2021-08-06 13:53:47,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:53:47,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:53:47,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:53:47,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:53:47,915 INFO L87 Difference]: Start difference. First operand 2776 states and 7289 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:53:51,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:53:51,436 INFO L93 Difference]: Finished difference Result 4987 states and 12413 transitions. [2021-08-06 13:53:51,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-08-06 13:53:51,436 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:53:51,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:53:51,442 INFO L225 Difference]: With dead ends: 4987 [2021-08-06 13:53:51,442 INFO L226 Difference]: Without dead ends: 4987 [2021-08-06 13:53:51,443 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 3103.5ms TimeCoverageRelationStatistics Valid=572, Invalid=1590, Unknown=0, NotChecked=0, Total=2162 [2021-08-06 13:53:51,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4987 states. [2021-08-06 13:53:51,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4987 to 2776. [2021-08-06 13:53:51,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2776 states, 2774 states have (on average 2.6276135544340304) internal successors, (7289), 2775 states have internal predecessors, (7289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:53:51,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2776 states to 2776 states and 7289 transitions. [2021-08-06 13:53:51,484 INFO L78 Accepts]: Start accepts. Automaton has 2776 states and 7289 transitions. Word has length 94 [2021-08-06 13:53:51,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:53:51,484 INFO L470 AbstractCegarLoop]: Abstraction has 2776 states and 7289 transitions. [2021-08-06 13:53:51,484 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:53:51,484 INFO L276 IsEmpty]: Start isEmpty. Operand 2776 states and 7289 transitions. [2021-08-06 13:53:51,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:53:51,489 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:53:51,489 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:53:51,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-08-06 13:53:51,489 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:53:51,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:53:51,489 INFO L82 PathProgramCache]: Analyzing trace with hash -450294109, now seen corresponding path program 19 times [2021-08-06 13:53:51,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:53:51,490 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691419016] [2021-08-06 13:53:51,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:53:51,490 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:53:51,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:53:52,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:53:52,224 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:53:52,224 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691419016] [2021-08-06 13:53:52,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691419016] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:53:52,224 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:53:52,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:53:52,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899740925] [2021-08-06 13:53:52,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:53:52,224 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:53:52,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:53:52,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:53:52,225 INFO L87 Difference]: Start difference. First operand 2776 states and 7289 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:53:56,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:53:56,960 INFO L93 Difference]: Finished difference Result 6571 states and 16435 transitions. [2021-08-06 13:53:56,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-08-06 13:53:56,967 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:53:56,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:53:56,974 INFO L225 Difference]: With dead ends: 6571 [2021-08-06 13:53:56,974 INFO L226 Difference]: Without dead ends: 6571 [2021-08-06 13:53:56,975 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 4100.0ms TimeCoverageRelationStatistics Valid=773, Invalid=1879, Unknown=0, NotChecked=0, Total=2652 [2021-08-06 13:53:56,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6571 states. [2021-08-06 13:53:57,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6571 to 2788. [2021-08-06 13:53:57,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2788 states, 2786 states have (on average 2.6292175161521896) internal successors, (7325), 2787 states have internal predecessors, (7325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:53:57,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2788 states to 2788 states and 7325 transitions. [2021-08-06 13:53:57,017 INFO L78 Accepts]: Start accepts. Automaton has 2788 states and 7325 transitions. Word has length 94 [2021-08-06 13:53:57,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:53:57,017 INFO L470 AbstractCegarLoop]: Abstraction has 2788 states and 7325 transitions. [2021-08-06 13:53:57,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:53:57,017 INFO L276 IsEmpty]: Start isEmpty. Operand 2788 states and 7325 transitions. [2021-08-06 13:53:57,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:53:57,021 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:53:57,021 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:53:57,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-08-06 13:53:57,021 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:53:57,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:53:57,021 INFO L82 PathProgramCache]: Analyzing trace with hash -1052294917, now seen corresponding path program 20 times [2021-08-06 13:53:57,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:53:57,022 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324657809] [2021-08-06 13:53:57,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:53:57,022 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:53:57,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:53:57,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:53:57,777 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:53:57,777 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324657809] [2021-08-06 13:53:57,777 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324657809] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:53:57,777 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:53:57,777 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:53:57,777 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567187790] [2021-08-06 13:53:57,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:53:57,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:53:57,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:53:57,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:53:57,778 INFO L87 Difference]: Start difference. First operand 2788 states and 7325 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:54:01,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:54:01,530 INFO L93 Difference]: Finished difference Result 5726 states and 14335 transitions. [2021-08-06 13:54:01,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-08-06 13:54:01,530 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:54:01,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:54:01,537 INFO L225 Difference]: With dead ends: 5726 [2021-08-06 13:54:01,537 INFO L226 Difference]: Without dead ends: 5726 [2021-08-06 13:54:01,538 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 3192.0ms TimeCoverageRelationStatistics Valid=587, Invalid=1575, Unknown=0, NotChecked=0, Total=2162 [2021-08-06 13:54:01,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5726 states. [2021-08-06 13:54:01,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5726 to 2776. [2021-08-06 13:54:01,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2776 states, 2774 states have (on average 2.6276135544340304) internal successors, (7289), 2775 states have internal predecessors, (7289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:54:01,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2776 states to 2776 states and 7289 transitions. [2021-08-06 13:54:01,584 INFO L78 Accepts]: Start accepts. Automaton has 2776 states and 7289 transitions. Word has length 94 [2021-08-06 13:54:01,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:54:01,585 INFO L470 AbstractCegarLoop]: Abstraction has 2776 states and 7289 transitions. [2021-08-06 13:54:01,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:54:01,585 INFO L276 IsEmpty]: Start isEmpty. Operand 2776 states and 7289 transitions. [2021-08-06 13:54:01,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:54:01,589 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:54:01,589 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:54:01,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-08-06 13:54:01,589 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:54:01,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:54:01,589 INFO L82 PathProgramCache]: Analyzing trace with hash -1012479733, now seen corresponding path program 21 times [2021-08-06 13:54:01,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:54:01,589 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574040333] [2021-08-06 13:54:01,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:54:01,590 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:54:01,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:54:02,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:54:02,297 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:54:02,297 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574040333] [2021-08-06 13:54:02,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574040333] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:54:02,297 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:54:02,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:54:02,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945414463] [2021-08-06 13:54:02,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:54:02,298 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:54:02,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:54:02,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:54:02,298 INFO L87 Difference]: Start difference. First operand 2776 states and 7289 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:54:05,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:54:05,428 INFO L93 Difference]: Finished difference Result 5102 states and 12678 transitions. [2021-08-06 13:54:05,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-06 13:54:05,429 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:54:05,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:54:05,434 INFO L225 Difference]: With dead ends: 5102 [2021-08-06 13:54:05,434 INFO L226 Difference]: Without dead ends: 5102 [2021-08-06 13:54:05,435 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 2726.0ms TimeCoverageRelationStatistics Valid=524, Invalid=1546, Unknown=0, NotChecked=0, Total=2070 [2021-08-06 13:54:05,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5102 states. [2021-08-06 13:54:05,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5102 to 2782. [2021-08-06 13:54:05,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2782 states, 2780 states have (on average 2.627338129496403) internal successors, (7304), 2781 states have internal predecessors, (7304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:54:05,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2782 states to 2782 states and 7304 transitions. [2021-08-06 13:54:05,476 INFO L78 Accepts]: Start accepts. Automaton has 2782 states and 7304 transitions. Word has length 94 [2021-08-06 13:54:05,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:54:05,477 INFO L470 AbstractCegarLoop]: Abstraction has 2782 states and 7304 transitions. [2021-08-06 13:54:05,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:54:05,477 INFO L276 IsEmpty]: Start isEmpty. Operand 2782 states and 7304 transitions. [2021-08-06 13:54:05,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:54:05,481 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:54:05,481 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:54:05,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-08-06 13:54:05,481 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:54:05,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:54:05,481 INFO L82 PathProgramCache]: Analyzing trace with hash -440661159, now seen corresponding path program 22 times [2021-08-06 13:54:05,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:54:05,482 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504861969] [2021-08-06 13:54:05,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:54:05,482 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:54:05,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:54:06,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:54:06,214 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:54:06,214 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504861969] [2021-08-06 13:54:06,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504861969] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:54:06,214 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:54:06,214 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:54:06,214 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959120840] [2021-08-06 13:54:06,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:54:06,214 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:54:06,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:54:06,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:54:06,215 INFO L87 Difference]: Start difference. First operand 2782 states and 7304 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:54:09,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:54:09,481 INFO L93 Difference]: Finished difference Result 5331 states and 13125 transitions. [2021-08-06 13:54:09,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-08-06 13:54:09,482 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:54:09,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:54:09,489 INFO L225 Difference]: With dead ends: 5331 [2021-08-06 13:54:09,489 INFO L226 Difference]: Without dead ends: 5331 [2021-08-06 13:54:09,490 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 2916.8ms TimeCoverageRelationStatistics Valid=557, Invalid=1605, Unknown=0, NotChecked=0, Total=2162 [2021-08-06 13:54:09,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5331 states. [2021-08-06 13:54:09,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5331 to 2780. [2021-08-06 13:54:09,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2780 states, 2778 states have (on average 2.627429805615551) internal successors, (7299), 2779 states have internal predecessors, (7299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:54:09,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2780 states to 2780 states and 7299 transitions. [2021-08-06 13:54:09,531 INFO L78 Accepts]: Start accepts. Automaton has 2780 states and 7299 transitions. Word has length 94 [2021-08-06 13:54:09,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:54:09,531 INFO L470 AbstractCegarLoop]: Abstraction has 2780 states and 7299 transitions. [2021-08-06 13:54:09,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:54:09,532 INFO L276 IsEmpty]: Start isEmpty. Operand 2780 states and 7299 transitions. [2021-08-06 13:54:09,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:54:09,535 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:54:09,535 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:54:09,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-08-06 13:54:09,535 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:54:09,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:54:09,535 INFO L82 PathProgramCache]: Analyzing trace with hash -1001306545, now seen corresponding path program 23 times [2021-08-06 13:54:09,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:54:09,536 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763758167] [2021-08-06 13:54:09,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:54:09,536 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:54:09,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:54:10,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:54:10,247 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:54:10,247 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763758167] [2021-08-06 13:54:10,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763758167] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:54:10,247 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:54:10,247 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:54:10,247 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587473622] [2021-08-06 13:54:10,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:54:10,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:54:10,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:54:10,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:54:10,248 INFO L87 Difference]: Start difference. First operand 2780 states and 7299 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:54:13,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:54:13,780 INFO L93 Difference]: Finished difference Result 5088 states and 12643 transitions. [2021-08-06 13:54:13,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-08-06 13:54:13,781 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:54:13,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:54:13,786 INFO L225 Difference]: With dead ends: 5088 [2021-08-06 13:54:13,786 INFO L226 Difference]: Without dead ends: 5088 [2021-08-06 13:54:13,787 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 3066.7ms TimeCoverageRelationStatistics Valid=589, Invalid=1667, Unknown=0, NotChecked=0, Total=2256 [2021-08-06 13:54:13,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5088 states. [2021-08-06 13:54:13,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5088 to 2780. [2021-08-06 13:54:13,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2780 states, 2778 states have (on average 2.627429805615551) internal successors, (7299), 2779 states have internal predecessors, (7299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:54:13,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2780 states to 2780 states and 7299 transitions. [2021-08-06 13:54:13,825 INFO L78 Accepts]: Start accepts. Automaton has 2780 states and 7299 transitions. Word has length 94 [2021-08-06 13:54:13,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:54:13,826 INFO L470 AbstractCegarLoop]: Abstraction has 2780 states and 7299 transitions. [2021-08-06 13:54:13,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:54:13,826 INFO L276 IsEmpty]: Start isEmpty. Operand 2780 states and 7299 transitions. [2021-08-06 13:54:13,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:54:13,829 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:54:13,829 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:54:13,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-08-06 13:54:13,829 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:54:13,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:54:13,830 INFO L82 PathProgramCache]: Analyzing trace with hash 400263745, now seen corresponding path program 24 times [2021-08-06 13:54:13,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:54:13,830 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122188653] [2021-08-06 13:54:13,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:54:13,830 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:54:13,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:54:14,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:54:14,531 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:54:14,532 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122188653] [2021-08-06 13:54:14,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122188653] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:54:14,532 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:54:14,532 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:54:14,532 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634059176] [2021-08-06 13:54:14,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:54:14,532 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:54:14,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:54:14,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:54:14,533 INFO L87 Difference]: Start difference. First operand 2780 states and 7299 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:54:19,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:54:19,507 INFO L93 Difference]: Finished difference Result 6905 states and 17315 transitions. [2021-08-06 13:54:19,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-08-06 13:54:19,508 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:54:19,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:54:19,516 INFO L225 Difference]: With dead ends: 6905 [2021-08-06 13:54:19,516 INFO L226 Difference]: Without dead ends: 6905 [2021-08-06 13:54:19,517 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 4304.5ms TimeCoverageRelationStatistics Valid=828, Invalid=2034, Unknown=0, NotChecked=0, Total=2862 [2021-08-06 13:54:19,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6905 states. [2021-08-06 13:54:19,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6905 to 2816. [2021-08-06 13:54:19,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2816 states, 2814 states have (on average 2.6321961620469083) internal successors, (7407), 2815 states have internal predecessors, (7407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:54:19,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2816 states to 2816 states and 7407 transitions. [2021-08-06 13:54:19,562 INFO L78 Accepts]: Start accepts. Automaton has 2816 states and 7407 transitions. Word has length 94 [2021-08-06 13:54:19,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:54:19,562 INFO L470 AbstractCegarLoop]: Abstraction has 2816 states and 7407 transitions. [2021-08-06 13:54:19,562 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:54:19,563 INFO L276 IsEmpty]: Start isEmpty. Operand 2816 states and 7407 transitions. [2021-08-06 13:54:19,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:54:19,565 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:54:19,566 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:54:19,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-08-06 13:54:19,566 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:54:19,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:54:19,566 INFO L82 PathProgramCache]: Analyzing trace with hash -201737063, now seen corresponding path program 25 times [2021-08-06 13:54:19,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:54:19,566 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177302774] [2021-08-06 13:54:19,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:54:19,566 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:54:19,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:54:20,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:54:20,251 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:54:20,251 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177302774] [2021-08-06 13:54:20,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177302774] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:54:20,252 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:54:20,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:54:20,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785138978] [2021-08-06 13:54:20,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:54:20,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:54:20,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:54:20,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:54:20,253 INFO L87 Difference]: Start difference. First operand 2816 states and 7407 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:54:25,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:54:25,189 INFO L93 Difference]: Finished difference Result 7114 states and 17670 transitions. [2021-08-06 13:54:25,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-08-06 13:54:25,189 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:54:25,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:54:25,197 INFO L225 Difference]: With dead ends: 7114 [2021-08-06 13:54:25,198 INFO L226 Difference]: Without dead ends: 7114 [2021-08-06 13:54:25,198 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 4238.2ms TimeCoverageRelationStatistics Valid=812, Invalid=2050, Unknown=0, NotChecked=0, Total=2862 [2021-08-06 13:54:25,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7114 states. [2021-08-06 13:54:25,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7114 to 2804. [2021-08-06 13:54:25,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2804 states, 2802 states have (on average 2.6306209850107067) internal successors, (7371), 2803 states have internal predecessors, (7371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:54:25,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2804 states to 2804 states and 7371 transitions. [2021-08-06 13:54:25,253 INFO L78 Accepts]: Start accepts. Automaton has 2804 states and 7371 transitions. Word has length 94 [2021-08-06 13:54:25,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:54:25,254 INFO L470 AbstractCegarLoop]: Abstraction has 2804 states and 7371 transitions. [2021-08-06 13:54:25,254 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:54:25,254 INFO L276 IsEmpty]: Start isEmpty. Operand 2804 states and 7371 transitions. [2021-08-06 13:54:25,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:54:25,256 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:54:25,257 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:54:25,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-08-06 13:54:25,257 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:54:25,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:54:25,257 INFO L82 PathProgramCache]: Analyzing trace with hash -1575155195, now seen corresponding path program 26 times [2021-08-06 13:54:25,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:54:25,257 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873257359] [2021-08-06 13:54:25,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:54:25,258 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:54:25,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:54:25,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:54:25,945 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:54:25,945 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873257359] [2021-08-06 13:54:25,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873257359] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:54:25,946 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:54:25,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:54:25,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102658668] [2021-08-06 13:54:25,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:54:25,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:54:25,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:54:25,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:54:25,947 INFO L87 Difference]: Start difference. First operand 2804 states and 7371 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:54:29,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:54:29,610 INFO L93 Difference]: Finished difference Result 5979 states and 14993 transitions. [2021-08-06 13:54:29,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-08-06 13:54:29,611 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:54:29,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:54:29,617 INFO L225 Difference]: With dead ends: 5979 [2021-08-06 13:54:29,618 INFO L226 Difference]: Without dead ends: 5979 [2021-08-06 13:54:29,618 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 3138.1ms TimeCoverageRelationStatistics Valid=604, Invalid=1652, Unknown=0, NotChecked=0, Total=2256 [2021-08-06 13:54:29,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5979 states. [2021-08-06 13:54:29,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5979 to 2780. [2021-08-06 13:54:29,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2780 states, 2778 states have (on average 2.627429805615551) internal successors, (7299), 2779 states have internal predecessors, (7299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:54:29,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2780 states to 2780 states and 7299 transitions. [2021-08-06 13:54:29,660 INFO L78 Accepts]: Start accepts. Automaton has 2780 states and 7299 transitions. Word has length 94 [2021-08-06 13:54:29,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:54:29,660 INFO L470 AbstractCegarLoop]: Abstraction has 2780 states and 7299 transitions. [2021-08-06 13:54:29,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:54:29,661 INFO L276 IsEmpty]: Start isEmpty. Operand 2780 states and 7299 transitions. [2021-08-06 13:54:29,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:54:29,663 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:54:29,663 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:54:29,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-08-06 13:54:29,664 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:54:29,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:54:29,664 INFO L82 PathProgramCache]: Analyzing trace with hash 905814667, now seen corresponding path program 27 times [2021-08-06 13:54:29,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:54:29,664 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094373935] [2021-08-06 13:54:29,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:54:29,664 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:54:29,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:54:30,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:54:30,355 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:54:30,355 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094373935] [2021-08-06 13:54:30,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094373935] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:54:30,355 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:54:30,355 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:54:30,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522436795] [2021-08-06 13:54:30,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:54:30,356 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:54:30,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:54:30,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:54:30,356 INFO L87 Difference]: Start difference. First operand 2780 states and 7299 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:54:33,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:54:33,494 INFO L93 Difference]: Finished difference Result 5177 states and 12852 transitions. [2021-08-06 13:54:33,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-06 13:54:33,494 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:54:33,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:54:33,500 INFO L225 Difference]: With dead ends: 5177 [2021-08-06 13:54:33,501 INFO L226 Difference]: Without dead ends: 5177 [2021-08-06 13:54:33,501 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 2664.1ms TimeCoverageRelationStatistics Valid=509, Invalid=1561, Unknown=0, NotChecked=0, Total=2070 [2021-08-06 13:54:33,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5177 states. [2021-08-06 13:54:33,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5177 to 2788. [2021-08-06 13:54:33,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2788 states, 2786 states have (on average 2.627063890882986) internal successors, (7319), 2787 states have internal predecessors, (7319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:54:33,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2788 states to 2788 states and 7319 transitions. [2021-08-06 13:54:33,546 INFO L78 Accepts]: Start accepts. Automaton has 2788 states and 7319 transitions. Word has length 94 [2021-08-06 13:54:33,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:54:33,546 INFO L470 AbstractCegarLoop]: Abstraction has 2788 states and 7319 transitions. [2021-08-06 13:54:33,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:54:33,546 INFO L276 IsEmpty]: Start isEmpty. Operand 2788 states and 7319 transitions. [2021-08-06 13:54:33,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:54:33,549 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:54:33,549 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:54:33,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-08-06 13:54:33,550 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:54:33,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:54:33,550 INFO L82 PathProgramCache]: Analyzing trace with hash 1477633241, now seen corresponding path program 28 times [2021-08-06 13:54:33,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:54:33,550 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121261439] [2021-08-06 13:54:33,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:54:33,550 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:54:33,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:54:34,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:54:34,243 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:54:34,243 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121261439] [2021-08-06 13:54:34,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121261439] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:54:34,243 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:54:34,244 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:54:34,244 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836550686] [2021-08-06 13:54:34,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:54:34,244 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:54:34,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:54:34,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:54:34,245 INFO L87 Difference]: Start difference. First operand 2788 states and 7319 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:54:37,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:54:37,539 INFO L93 Difference]: Finished difference Result 5406 states and 13299 transitions. [2021-08-06 13:54:37,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-08-06 13:54:37,539 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:54:37,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:54:37,546 INFO L225 Difference]: With dead ends: 5406 [2021-08-06 13:54:37,546 INFO L226 Difference]: Without dead ends: 5406 [2021-08-06 13:54:37,546 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 2825.2ms TimeCoverageRelationStatistics Valid=542, Invalid=1620, Unknown=0, NotChecked=0, Total=2162 [2021-08-06 13:54:37,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5406 states. [2021-08-06 13:54:37,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5406 to 2786. [2021-08-06 13:54:37,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2786 states, 2784 states have (on average 2.627155172413793) internal successors, (7314), 2785 states have internal predecessors, (7314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:54:37,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2786 states to 2786 states and 7314 transitions. [2021-08-06 13:54:37,591 INFO L78 Accepts]: Start accepts. Automaton has 2786 states and 7314 transitions. Word has length 94 [2021-08-06 13:54:37,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:54:37,592 INFO L470 AbstractCegarLoop]: Abstraction has 2786 states and 7314 transitions. [2021-08-06 13:54:37,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:54:37,592 INFO L276 IsEmpty]: Start isEmpty. Operand 2786 states and 7314 transitions. [2021-08-06 13:54:37,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:54:37,595 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:54:37,595 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:54:37,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-08-06 13:54:37,595 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:54:37,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:54:37,595 INFO L82 PathProgramCache]: Analyzing trace with hash 916987855, now seen corresponding path program 29 times [2021-08-06 13:54:37,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:54:37,595 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848643354] [2021-08-06 13:54:37,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:54:37,596 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:54:37,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:54:38,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:54:38,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:54:38,285 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848643354] [2021-08-06 13:54:38,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848643354] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:54:38,285 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:54:38,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:54:38,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332037937] [2021-08-06 13:54:38,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:54:38,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:54:38,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:54:38,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:54:38,286 INFO L87 Difference]: Start difference. First operand 2786 states and 7314 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:54:41,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:54:41,721 INFO L93 Difference]: Finished difference Result 5457 states and 13413 transitions. [2021-08-06 13:54:41,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-08-06 13:54:41,722 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:54:41,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:54:41,728 INFO L225 Difference]: With dead ends: 5457 [2021-08-06 13:54:41,728 INFO L226 Difference]: Without dead ends: 5457 [2021-08-06 13:54:41,729 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 2887.4ms TimeCoverageRelationStatistics Valid=574, Invalid=1682, Unknown=0, NotChecked=0, Total=2256 [2021-08-06 13:54:41,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5457 states. [2021-08-06 13:54:41,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5457 to 2782. [2021-08-06 13:54:41,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2782 states, 2780 states have (on average 2.627338129496403) internal successors, (7304), 2781 states have internal predecessors, (7304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:54:41,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2782 states to 2782 states and 7304 transitions. [2021-08-06 13:54:41,771 INFO L78 Accepts]: Start accepts. Automaton has 2782 states and 7304 transitions. Word has length 94 [2021-08-06 13:54:41,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:54:41,771 INFO L470 AbstractCegarLoop]: Abstraction has 2782 states and 7304 transitions. [2021-08-06 13:54:41,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:54:41,771 INFO L276 IsEmpty]: Start isEmpty. Operand 2782 states and 7304 transitions. [2021-08-06 13:54:41,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:54:41,774 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:54:41,774 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:54:41,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-08-06 13:54:41,774 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:54:41,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:54:41,774 INFO L82 PathProgramCache]: Analyzing trace with hash 394463473, now seen corresponding path program 30 times [2021-08-06 13:54:41,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:54:41,775 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671305192] [2021-08-06 13:54:41,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:54:41,775 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:54:41,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:54:42,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:54:42,462 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:54:42,462 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671305192] [2021-08-06 13:54:42,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671305192] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:54:42,463 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:54:42,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:54:42,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292703647] [2021-08-06 13:54:42,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:54:42,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:54:42,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:54:42,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:54:42,464 INFO L87 Difference]: Start difference. First operand 2782 states and 7304 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:54:46,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:54:46,007 INFO L93 Difference]: Finished difference Result 5164 states and 12815 transitions. [2021-08-06 13:54:46,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-06 13:54:46,008 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:54:46,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:54:46,013 INFO L225 Difference]: With dead ends: 5164 [2021-08-06 13:54:46,013 INFO L226 Difference]: Without dead ends: 5164 [2021-08-06 13:54:46,013 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 3122.5ms TimeCoverageRelationStatistics Valid=605, Invalid=1747, Unknown=0, NotChecked=0, Total=2352 [2021-08-06 13:54:46,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5164 states. [2021-08-06 13:54:46,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5164 to 2782. [2021-08-06 13:54:46,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2782 states, 2780 states have (on average 2.627338129496403) internal successors, (7304), 2781 states have internal predecessors, (7304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:54:46,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2782 states to 2782 states and 7304 transitions. [2021-08-06 13:54:46,047 INFO L78 Accepts]: Start accepts. Automaton has 2782 states and 7304 transitions. Word has length 94 [2021-08-06 13:54:46,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:54:46,047 INFO L470 AbstractCegarLoop]: Abstraction has 2782 states and 7304 transitions. [2021-08-06 13:54:46,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:54:46,048 INFO L276 IsEmpty]: Start isEmpty. Operand 2782 states and 7304 transitions. [2021-08-06 13:54:46,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:54:46,050 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:54:46,050 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:54:46,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-08-06 13:54:46,050 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:54:46,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:54:46,051 INFO L82 PathProgramCache]: Analyzing trace with hash -3619583, now seen corresponding path program 31 times [2021-08-06 13:54:46,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:54:46,051 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493780890] [2021-08-06 13:54:46,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:54:46,051 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:54:46,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:54:46,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:54:46,725 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:54:46,725 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493780890] [2021-08-06 13:54:46,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493780890] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:54:46,725 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:54:46,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:54:46,725 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341501108] [2021-08-06 13:54:46,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:54:46,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:54:46,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:54:46,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:54:46,726 INFO L87 Difference]: Start difference. First operand 2782 states and 7304 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:54:52,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:54:52,101 INFO L93 Difference]: Finished difference Result 7237 states and 18190 transitions. [2021-08-06 13:54:52,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-08-06 13:54:52,102 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:54:52,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:54:52,111 INFO L225 Difference]: With dead ends: 7237 [2021-08-06 13:54:52,111 INFO L226 Difference]: Without dead ends: 7237 [2021-08-06 13:54:52,112 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 328 ImplicationChecksByTransitivity, 4577.4ms TimeCoverageRelationStatistics Valid=882, Invalid=2198, Unknown=0, NotChecked=0, Total=3080 [2021-08-06 13:54:52,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7237 states. [2021-08-06 13:54:52,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7237 to 2830. [2021-08-06 13:54:52,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2830 states, 2828 states have (on average 2.633663366336634) internal successors, (7448), 2829 states have internal predecessors, (7448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:54:52,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2830 states to 2830 states and 7448 transitions. [2021-08-06 13:54:52,159 INFO L78 Accepts]: Start accepts. Automaton has 2830 states and 7448 transitions. Word has length 94 [2021-08-06 13:54:52,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:54:52,159 INFO L470 AbstractCegarLoop]: Abstraction has 2830 states and 7448 transitions. [2021-08-06 13:54:52,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:54:52,159 INFO L276 IsEmpty]: Start isEmpty. Operand 2830 states and 7448 transitions. [2021-08-06 13:54:52,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:54:52,162 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:54:52,162 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:54:52,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-08-06 13:54:52,163 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:54:52,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:54:52,163 INFO L82 PathProgramCache]: Analyzing trace with hash -605620391, now seen corresponding path program 32 times [2021-08-06 13:54:52,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:54:52,163 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162035677] [2021-08-06 13:54:52,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:54:52,163 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:54:52,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:54:52,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:54:52,891 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:54:52,892 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162035677] [2021-08-06 13:54:52,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162035677] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:54:52,892 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:54:52,892 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:54:52,892 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221658678] [2021-08-06 13:54:52,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:54:52,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:54:52,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:54:52,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:54:52,893 INFO L87 Difference]: Start difference. First operand 2830 states and 7448 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:54:58,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:54:58,084 INFO L93 Difference]: Finished difference Result 7446 states and 18545 transitions. [2021-08-06 13:54:58,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-08-06 13:54:58,084 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:54:58,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:54:58,093 INFO L225 Difference]: With dead ends: 7446 [2021-08-06 13:54:58,093 INFO L226 Difference]: Without dead ends: 7446 [2021-08-06 13:54:58,093 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 4479.6ms TimeCoverageRelationStatistics Valid=865, Invalid=2215, Unknown=0, NotChecked=0, Total=3080 [2021-08-06 13:54:58,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7446 states. [2021-08-06 13:54:58,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7446 to 2818. [2021-08-06 13:54:58,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2818 states, 2816 states have (on average 2.632102272727273) internal successors, (7412), 2817 states have internal predecessors, (7412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:54:58,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2818 states to 2818 states and 7412 transitions. [2021-08-06 13:54:58,138 INFO L78 Accepts]: Start accepts. Automaton has 2818 states and 7412 transitions. Word has length 94 [2021-08-06 13:54:58,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:54:58,138 INFO L470 AbstractCegarLoop]: Abstraction has 2818 states and 7412 transitions. [2021-08-06 13:54:58,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:54:58,139 INFO L276 IsEmpty]: Start isEmpty. Operand 2818 states and 7412 transitions. [2021-08-06 13:54:58,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:54:58,141 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:54:58,141 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:54:58,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-08-06 13:54:58,142 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:54:58,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:54:58,142 INFO L82 PathProgramCache]: Analyzing trace with hash -1979038523, now seen corresponding path program 33 times [2021-08-06 13:54:58,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:54:58,142 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648196730] [2021-08-06 13:54:58,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:54:58,142 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:54:58,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:54:58,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:54:58,835 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:54:58,835 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648196730] [2021-08-06 13:54:58,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648196730] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:54:58,835 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:54:58,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:54:58,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186538489] [2021-08-06 13:54:58,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:54:58,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:54:58,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:54:58,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:54:58,836 INFO L87 Difference]: Start difference. First operand 2818 states and 7412 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:55:03,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:55:03,857 INFO L93 Difference]: Finished difference Result 7475 states and 18613 transitions. [2021-08-06 13:55:03,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-08-06 13:55:03,857 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:55:03,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:55:03,867 INFO L225 Difference]: With dead ends: 7475 [2021-08-06 13:55:03,867 INFO L226 Difference]: Without dead ends: 7475 [2021-08-06 13:55:03,868 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 4345.0ms TimeCoverageRelationStatistics Valid=817, Invalid=2153, Unknown=0, NotChecked=0, Total=2970 [2021-08-06 13:55:03,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7475 states. [2021-08-06 13:55:03,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7475 to 2794. [2021-08-06 13:55:03,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2794 states, 2792 states have (on average 2.628939828080229) internal successors, (7340), 2793 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) [2021-08-06 13:55:03,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2794 states to 2794 states and 7340 transitions. [2021-08-06 13:55:03,917 INFO L78 Accepts]: Start accepts. Automaton has 2794 states and 7340 transitions. Word has length 94 [2021-08-06 13:55:03,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:55:03,917 INFO L470 AbstractCegarLoop]: Abstraction has 2794 states and 7340 transitions. [2021-08-06 13:55:03,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:55:03,917 INFO L276 IsEmpty]: Start isEmpty. Operand 2794 states and 7340 transitions. [2021-08-06 13:55:03,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:55:03,920 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:55:03,920 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:55:03,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-08-06 13:55:03,921 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:55:03,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:55:03,921 INFO L82 PathProgramCache]: Analyzing trace with hash -1318275289, now seen corresponding path program 34 times [2021-08-06 13:55:03,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:55:03,921 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144790490] [2021-08-06 13:55:03,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:55:03,921 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:55:03,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:55:04,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:55:04,612 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:55:04,612 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144790490] [2021-08-06 13:55:04,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144790490] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:55:04,612 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:55:04,612 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:55:04,613 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433184904] [2021-08-06 13:55:04,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:55:04,613 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:55:04,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:55:04,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:55:04,613 INFO L87 Difference]: Start difference. First operand 2794 states and 7340 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:55:08,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:55:08,667 INFO L93 Difference]: Finished difference Result 6131 states and 15379 transitions. [2021-08-06 13:55:08,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-06 13:55:08,668 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:55:08,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:55:08,676 INFO L225 Difference]: With dead ends: 6131 [2021-08-06 13:55:08,676 INFO L226 Difference]: Without dead ends: 6131 [2021-08-06 13:55:08,676 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 3448.6ms TimeCoverageRelationStatistics Valid=620, Invalid=1732, Unknown=0, NotChecked=0, Total=2352 [2021-08-06 13:55:08,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6131 states. [2021-08-06 13:55:08,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6131 to 2782. [2021-08-06 13:55:08,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2782 states, 2780 states have (on average 2.627338129496403) internal successors, (7304), 2781 states have internal predecessors, (7304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:55:08,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2782 states to 2782 states and 7304 transitions. [2021-08-06 13:55:08,725 INFO L78 Accepts]: Start accepts. Automaton has 2782 states and 7304 transitions. Word has length 94 [2021-08-06 13:55:08,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:55:08,725 INFO L470 AbstractCegarLoop]: Abstraction has 2782 states and 7304 transitions. [2021-08-06 13:55:08,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:55:08,726 INFO L276 IsEmpty]: Start isEmpty. Operand 2782 states and 7304 transitions. [2021-08-06 13:55:08,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:55:08,729 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:55:08,729 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:55:08,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-08-06 13:55:08,729 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:55:08,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:55:08,729 INFO L82 PathProgramCache]: Analyzing trace with hash -1208459741, now seen corresponding path program 35 times [2021-08-06 13:55:08,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:55:08,730 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320465209] [2021-08-06 13:55:08,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:55:08,730 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:55:08,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:55:09,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:55:09,471 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:55:09,471 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320465209] [2021-08-06 13:55:09,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320465209] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:55:09,471 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:55:09,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:55:09,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666457969] [2021-08-06 13:55:09,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:55:09,472 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:55:09,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:55:09,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:55:09,472 INFO L87 Difference]: Start difference. First operand 2782 states and 7304 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:55:12,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:55:12,473 INFO L93 Difference]: Finished difference Result 4835 states and 12142 transitions. [2021-08-06 13:55:12,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-06 13:55:12,474 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:55:12,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:55:12,479 INFO L225 Difference]: With dead ends: 4835 [2021-08-06 13:55:12,479 INFO L226 Difference]: Without dead ends: 4835 [2021-08-06 13:55:12,480 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 2638.8ms TimeCoverageRelationStatistics Valid=494, Invalid=1576, Unknown=0, NotChecked=0, Total=2070 [2021-08-06 13:55:12,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4835 states. [2021-08-06 13:55:12,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4835 to 2792. [2021-08-06 13:55:12,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2792 states, 2790 states have (on average 2.6268817204301076) internal successors, (7329), 2791 states have internal predecessors, (7329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:55:12,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2792 states to 2792 states and 7329 transitions. [2021-08-06 13:55:12,521 INFO L78 Accepts]: Start accepts. Automaton has 2792 states and 7329 transitions. Word has length 94 [2021-08-06 13:55:12,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:55:12,521 INFO L470 AbstractCegarLoop]: Abstraction has 2792 states and 7329 transitions. [2021-08-06 13:55:12,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:55:12,522 INFO L276 IsEmpty]: Start isEmpty. Operand 2792 states and 7329 transitions. [2021-08-06 13:55:12,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:55:12,525 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:55:12,525 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:55:12,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-08-06 13:55:12,525 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:55:12,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:55:12,526 INFO L82 PathProgramCache]: Analyzing trace with hash -636641167, now seen corresponding path program 36 times [2021-08-06 13:55:12,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:55:12,526 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711813838] [2021-08-06 13:55:12,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:55:12,526 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:55:12,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:55:13,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:55:13,261 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:55:13,261 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711813838] [2021-08-06 13:55:13,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711813838] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:55:13,261 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:55:13,261 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:55:13,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915261069] [2021-08-06 13:55:13,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:55:13,262 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:55:13,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:55:13,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:55:13,262 INFO L87 Difference]: Start difference. First operand 2792 states and 7329 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:55:16,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:55:16,494 INFO L93 Difference]: Finished difference Result 5064 states and 12589 transitions. [2021-08-06 13:55:16,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-08-06 13:55:16,494 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:55:16,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:55:16,500 INFO L225 Difference]: With dead ends: 5064 [2021-08-06 13:55:16,500 INFO L226 Difference]: Without dead ends: 5064 [2021-08-06 13:55:16,500 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 2792.4ms TimeCoverageRelationStatistics Valid=527, Invalid=1635, Unknown=0, NotChecked=0, Total=2162 [2021-08-06 13:55:16,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5064 states. [2021-08-06 13:55:16,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5064 to 2790. [2021-08-06 13:55:16,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2790 states, 2788 states have (on average 2.6269727403156384) internal successors, (7324), 2789 states have internal predecessors, (7324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:55:16,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2790 states to 2790 states and 7324 transitions. [2021-08-06 13:55:16,537 INFO L78 Accepts]: Start accepts. Automaton has 2790 states and 7324 transitions. Word has length 94 [2021-08-06 13:55:16,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:55:16,537 INFO L470 AbstractCegarLoop]: Abstraction has 2790 states and 7324 transitions. [2021-08-06 13:55:16,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:55:16,537 INFO L276 IsEmpty]: Start isEmpty. Operand 2790 states and 7324 transitions. [2021-08-06 13:55:16,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:55:16,540 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:55:16,540 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:55:16,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-08-06 13:55:16,540 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:55:16,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:55:16,540 INFO L82 PathProgramCache]: Analyzing trace with hash -1197286553, now seen corresponding path program 37 times [2021-08-06 13:55:16,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:55:16,540 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96732812] [2021-08-06 13:55:16,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:55:16,541 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:55:16,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:55:17,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:55:17,248 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:55:17,248 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96732812] [2021-08-06 13:55:17,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96732812] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:55:17,248 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:55:17,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:55:17,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570695939] [2021-08-06 13:55:17,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:55:17,249 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:55:17,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:55:17,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:55:17,249 INFO L87 Difference]: Start difference. First operand 2790 states and 7324 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:55:20,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:55:20,592 INFO L93 Difference]: Finished difference Result 5115 states and 12703 transitions. [2021-08-06 13:55:20,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-08-06 13:55:20,593 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:55:20,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:55:20,600 INFO L225 Difference]: With dead ends: 5115 [2021-08-06 13:55:20,600 INFO L226 Difference]: Without dead ends: 5115 [2021-08-06 13:55:20,600 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 2895.9ms TimeCoverageRelationStatistics Valid=559, Invalid=1697, Unknown=0, NotChecked=0, Total=2256 [2021-08-06 13:55:20,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5115 states. [2021-08-06 13:55:20,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5115 to 2786. [2021-08-06 13:55:20,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2786 states, 2784 states have (on average 2.627155172413793) internal successors, (7314), 2785 states have internal predecessors, (7314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:55:20,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2786 states to 2786 states and 7314 transitions. [2021-08-06 13:55:20,645 INFO L78 Accepts]: Start accepts. Automaton has 2786 states and 7314 transitions. Word has length 94 [2021-08-06 13:55:20,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:55:20,646 INFO L470 AbstractCegarLoop]: Abstraction has 2786 states and 7314 transitions. [2021-08-06 13:55:20,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:55:20,646 INFO L276 IsEmpty]: Start isEmpty. Operand 2786 states and 7314 transitions. [2021-08-06 13:55:20,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:55:20,649 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:55:20,649 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:55:20,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-08-06 13:55:20,649 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:55:20,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:55:20,649 INFO L82 PathProgramCache]: Analyzing trace with hash -1719810935, now seen corresponding path program 38 times [2021-08-06 13:55:20,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:55:20,649 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596352141] [2021-08-06 13:55:20,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:55:20,650 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:55:20,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:55:21,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:55:21,409 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:55:21,410 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596352141] [2021-08-06 13:55:21,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596352141] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:55:21,410 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:55:21,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:55:21,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920358104] [2021-08-06 13:55:21,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:55:21,410 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:55:21,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:55:21,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:55:21,411 INFO L87 Difference]: Start difference. First operand 2786 states and 7314 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:55:25,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:55:25,004 INFO L93 Difference]: Finished difference Result 5166 states and 12817 transitions. [2021-08-06 13:55:25,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-06 13:55:25,005 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:55:25,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:55:25,010 INFO L225 Difference]: With dead ends: 5166 [2021-08-06 13:55:25,010 INFO L226 Difference]: Without dead ends: 5166 [2021-08-06 13:55:25,011 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 3088.1ms TimeCoverageRelationStatistics Valid=590, Invalid=1762, Unknown=0, NotChecked=0, Total=2352 [2021-08-06 13:55:25,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5166 states. [2021-08-06 13:55:25,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5166 to 2784. [2021-08-06 13:55:25,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2784 states, 2782 states have (on average 2.6272465851905102) internal successors, (7309), 2783 states have internal predecessors, (7309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:55:25,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2784 states to 2784 states and 7309 transitions. [2021-08-06 13:55:25,052 INFO L78 Accepts]: Start accepts. Automaton has 2784 states and 7309 transitions. Word has length 94 [2021-08-06 13:55:25,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:55:25,052 INFO L470 AbstractCegarLoop]: Abstraction has 2784 states and 7309 transitions. [2021-08-06 13:55:25,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:55:25,052 INFO L276 IsEmpty]: Start isEmpty. Operand 2784 states and 7309 transitions. [2021-08-06 13:55:25,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:55:25,056 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:55:25,056 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:55:25,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-08-06 13:55:25,056 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:55:25,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:55:25,056 INFO L82 PathProgramCache]: Analyzing trace with hash 258881069, now seen corresponding path program 39 times [2021-08-06 13:55:25,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:55:25,057 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570382104] [2021-08-06 13:55:25,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:55:25,057 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:55:25,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:55:25,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:55:25,760 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:55:25,760 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570382104] [2021-08-06 13:55:25,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570382104] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:55:25,760 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:55:25,760 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:55:25,760 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976379843] [2021-08-06 13:55:25,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:55:25,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:55:25,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:55:25,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:55:25,761 INFO L87 Difference]: Start difference. First operand 2784 states and 7309 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:55:29,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:55:29,369 INFO L93 Difference]: Finished difference Result 4831 states and 12123 transitions. [2021-08-06 13:55:29,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-08-06 13:55:29,370 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:55:29,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:55:29,375 INFO L225 Difference]: With dead ends: 4831 [2021-08-06 13:55:29,375 INFO L226 Difference]: Without dead ends: 4831 [2021-08-06 13:55:29,376 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 3135.7ms TimeCoverageRelationStatistics Valid=620, Invalid=1830, Unknown=0, NotChecked=0, Total=2450 [2021-08-06 13:55:29,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4831 states. [2021-08-06 13:55:29,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4831 to 2784. [2021-08-06 13:55:29,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2784 states, 2782 states have (on average 2.6272465851905102) internal successors, (7309), 2783 states have internal predecessors, (7309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:55:29,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2784 states to 2784 states and 7309 transitions. [2021-08-06 13:55:29,411 INFO L78 Accepts]: Start accepts. Automaton has 2784 states and 7309 transitions. Word has length 94 [2021-08-06 13:55:29,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:55:29,412 INFO L470 AbstractCegarLoop]: Abstraction has 2784 states and 7309 transitions. [2021-08-06 13:55:29,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:55:29,412 INFO L276 IsEmpty]: Start isEmpty. Operand 2784 states and 7309 transitions. [2021-08-06 13:55:29,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:55:29,414 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:55:29,415 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:55:29,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-08-06 13:55:29,415 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:55:29,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:55:29,415 INFO L82 PathProgramCache]: Analyzing trace with hash 621779235, now seen corresponding path program 40 times [2021-08-06 13:55:29,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:55:29,415 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665368285] [2021-08-06 13:55:29,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:55:29,415 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:55:29,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:55:30,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:55:30,133 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:55:30,133 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665368285] [2021-08-06 13:55:30,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665368285] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:55:30,133 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:55:30,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:55:30,133 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079695299] [2021-08-06 13:55:30,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:55:30,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:55:30,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:55:30,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:55:30,135 INFO L87 Difference]: Start difference. First operand 2784 states and 7309 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:55:35,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:55:35,799 INFO L93 Difference]: Finished difference Result 6621 states and 16648 transitions. [2021-08-06 13:55:35,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-08-06 13:55:35,799 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:55:35,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:55:35,807 INFO L225 Difference]: With dead ends: 6621 [2021-08-06 13:55:35,808 INFO L226 Difference]: Without dead ends: 6621 [2021-08-06 13:55:35,808 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 364 ImplicationChecksByTransitivity, 4873.0ms TimeCoverageRelationStatistics Valid=935, Invalid=2371, Unknown=0, NotChecked=0, Total=3306 [2021-08-06 13:55:35,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6621 states. [2021-08-06 13:55:35,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6621 to 2844. [2021-08-06 13:55:35,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2844 states, 2842 states have (on average 2.635116115411682) internal successors, (7489), 2843 states have internal predecessors, (7489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:55:35,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2844 states to 2844 states and 7489 transitions. [2021-08-06 13:55:35,850 INFO L78 Accepts]: Start accepts. Automaton has 2844 states and 7489 transitions. Word has length 94 [2021-08-06 13:55:35,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:55:35,850 INFO L470 AbstractCegarLoop]: Abstraction has 2844 states and 7489 transitions. [2021-08-06 13:55:35,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:55:35,850 INFO L276 IsEmpty]: Start isEmpty. Operand 2844 states and 7489 transitions. [2021-08-06 13:55:35,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:55:35,853 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:55:35,853 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:55:35,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-08-06 13:55:35,854 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:55:35,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:55:35,854 INFO L82 PathProgramCache]: Analyzing trace with hash 19778427, now seen corresponding path program 41 times [2021-08-06 13:55:35,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:55:35,854 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714699277] [2021-08-06 13:55:35,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:55:35,854 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:55:35,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:55:36,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:55:36,548 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:55:36,548 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714699277] [2021-08-06 13:55:36,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714699277] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:55:36,548 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:55:36,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:55:36,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207746618] [2021-08-06 13:55:36,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:55:36,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:55:36,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:55:36,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:55:36,549 INFO L87 Difference]: Start difference. First operand 2844 states and 7489 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:55:42,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:55:42,079 INFO L93 Difference]: Finished difference Result 6830 states and 17003 transitions. [2021-08-06 13:55:42,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-08-06 13:55:42,079 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:55:42,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:55:42,086 INFO L225 Difference]: With dead ends: 6830 [2021-08-06 13:55:42,086 INFO L226 Difference]: Without dead ends: 6830 [2021-08-06 13:55:42,086 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 381 ImplicationChecksByTransitivity, 4732.0ms TimeCoverageRelationStatistics Valid=917, Invalid=2389, Unknown=0, NotChecked=0, Total=3306 [2021-08-06 13:55:42,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6830 states. [2021-08-06 13:55:42,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6830 to 2832. [2021-08-06 13:55:42,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2832 states, 2830 states have (on average 2.6335689045936395) internal successors, (7453), 2831 states have internal predecessors, (7453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:55:42,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2832 states to 2832 states and 7453 transitions. [2021-08-06 13:55:42,127 INFO L78 Accepts]: Start accepts. Automaton has 2832 states and 7453 transitions. Word has length 94 [2021-08-06 13:55:42,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:55:42,127 INFO L470 AbstractCegarLoop]: Abstraction has 2832 states and 7453 transitions. [2021-08-06 13:55:42,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:55:42,128 INFO L276 IsEmpty]: Start isEmpty. Operand 2832 states and 7453 transitions. [2021-08-06 13:55:42,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:55:42,130 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:55:42,130 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:55:42,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-08-06 13:55:42,130 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:55:42,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:55:42,131 INFO L82 PathProgramCache]: Analyzing trace with hash -1353639705, now seen corresponding path program 42 times [2021-08-06 13:55:42,131 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:55:42,131 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291511864] [2021-08-06 13:55:42,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:55:42,131 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:55:42,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:55:42,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:55:42,849 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:55:42,849 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291511864] [2021-08-06 13:55:42,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291511864] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:55:42,849 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:55:42,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:55:42,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297718694] [2021-08-06 13:55:42,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:55:42,849 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:55:42,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:55:42,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:55:42,850 INFO L87 Difference]: Start difference. First operand 2832 states and 7453 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:55:48,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:55:48,255 INFO L93 Difference]: Finished difference Result 6859 states and 17071 transitions. [2021-08-06 13:55:48,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-08-06 13:55:48,255 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:55:48,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:55:48,263 INFO L225 Difference]: With dead ends: 6859 [2021-08-06 13:55:48,263 INFO L226 Difference]: Without dead ends: 6859 [2021-08-06 13:55:48,263 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 376 ImplicationChecksByTransitivity, 4564.0ms TimeCoverageRelationStatistics Valid=868, Invalid=2324, Unknown=0, NotChecked=0, Total=3192 [2021-08-06 13:55:48,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6859 states. [2021-08-06 13:55:48,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6859 to 2808. [2021-08-06 13:55:48,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2808 states, 2806 states have (on average 2.630434782608696) internal successors, (7381), 2807 states have internal predecessors, (7381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:55:48,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2808 states to 2808 states and 7381 transitions. [2021-08-06 13:55:48,304 INFO L78 Accepts]: Start accepts. Automaton has 2808 states and 7381 transitions. Word has length 94 [2021-08-06 13:55:48,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:55:48,304 INFO L470 AbstractCegarLoop]: Abstraction has 2808 states and 7381 transitions. [2021-08-06 13:55:48,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:55:48,304 INFO L276 IsEmpty]: Start isEmpty. Operand 2808 states and 7381 transitions. [2021-08-06 13:55:48,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:55:48,307 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:55:48,307 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:55:48,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-08-06 13:55:48,307 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:55:48,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:55:48,307 INFO L82 PathProgramCache]: Analyzing trace with hash -692876471, now seen corresponding path program 43 times [2021-08-06 13:55:48,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:55:48,308 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834737729] [2021-08-06 13:55:48,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:55:48,308 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:55:48,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:55:49,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:55:49,037 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:55:49,037 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834737729] [2021-08-06 13:55:49,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834737729] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:55:49,037 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:55:49,037 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:55:49,038 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724702402] [2021-08-06 13:55:49,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:55:49,038 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:55:49,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:55:49,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:55:49,038 INFO L87 Difference]: Start difference. First operand 2808 states and 7381 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:55:53,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:55:53,989 INFO L93 Difference]: Finished difference Result 6899 states and 17162 transitions. [2021-08-06 13:55:53,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-08-06 13:55:53,990 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:55:53,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:55:53,999 INFO L225 Difference]: With dead ends: 6899 [2021-08-06 13:55:53,999 INFO L226 Difference]: Without dead ends: 6899 [2021-08-06 13:55:53,999 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 4205.8ms TimeCoverageRelationStatistics Valid=821, Invalid=2259, Unknown=0, NotChecked=0, Total=3080 [2021-08-06 13:55:54,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6899 states. [2021-08-06 13:55:54,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6899 to 2796. [2021-08-06 13:55:54,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2796 states, 2794 states have (on average 2.6288475304223335) internal successors, (7345), 2795 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) [2021-08-06 13:55:54,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2796 states to 2796 states and 7345 transitions. [2021-08-06 13:55:54,041 INFO L78 Accepts]: Start accepts. Automaton has 2796 states and 7345 transitions. Word has length 94 [2021-08-06 13:55:54,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:55:54,041 INFO L470 AbstractCegarLoop]: Abstraction has 2796 states and 7345 transitions. [2021-08-06 13:55:54,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:55:54,041 INFO L276 IsEmpty]: Start isEmpty. Operand 2796 states and 7345 transitions. [2021-08-06 13:55:54,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:55:54,044 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:55:54,044 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:55:54,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-08-06 13:55:54,045 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:55:54,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:55:54,045 INFO L82 PathProgramCache]: Analyzing trace with hash -1296413001, now seen corresponding path program 44 times [2021-08-06 13:55:54,045 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:55:54,045 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939118465] [2021-08-06 13:55:54,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:55:54,045 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:55:54,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:55:54,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:55:54,795 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:55:54,795 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939118465] [2021-08-06 13:55:54,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939118465] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:55:54,796 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:55:54,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:55:54,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879849380] [2021-08-06 13:55:54,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:55:54,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:55:54,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:55:54,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:55:54,797 INFO L87 Difference]: Start difference. First operand 2796 states and 7345 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:55:58,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:55:58,685 INFO L93 Difference]: Finished difference Result 5422 states and 13585 transitions. [2021-08-06 13:55:58,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-08-06 13:55:58,686 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:55:58,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:55:58,692 INFO L225 Difference]: With dead ends: 5422 [2021-08-06 13:55:58,692 INFO L226 Difference]: Without dead ends: 5422 [2021-08-06 13:55:58,692 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 3314.3ms TimeCoverageRelationStatistics Valid=635, Invalid=1815, Unknown=0, NotChecked=0, Total=2450 [2021-08-06 13:55:58,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5422 states. [2021-08-06 13:55:58,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5422 to 2784. [2021-08-06 13:55:58,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2784 states, 2782 states have (on average 2.6272465851905102) internal successors, (7309), 2783 states have internal predecessors, (7309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:55:58,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2784 states to 2784 states and 7309 transitions. [2021-08-06 13:55:58,727 INFO L78 Accepts]: Start accepts. Automaton has 2784 states and 7309 transitions. Word has length 94 [2021-08-06 13:55:58,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:55:58,727 INFO L470 AbstractCegarLoop]: Abstraction has 2784 states and 7309 transitions. [2021-08-06 13:55:58,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:55:58,727 INFO L276 IsEmpty]: Start isEmpty. Operand 2784 states and 7309 transitions. [2021-08-06 13:55:58,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:55:58,729 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:55:58,730 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:55:58,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-08-06 13:55:58,730 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:55:58,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:55:58,730 INFO L82 PathProgramCache]: Analyzing trace with hash 1008147897, now seen corresponding path program 45 times [2021-08-06 13:55:58,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:55:58,730 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259459029] [2021-08-06 13:55:58,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:55:58,730 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:55:58,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:55:59,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:55:59,133 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:55:59,134 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259459029] [2021-08-06 13:55:59,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259459029] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:55:59,134 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:55:59,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-08-06 13:55:59,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403741768] [2021-08-06 13:55:59,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-08-06 13:55:59,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:55:59,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-08-06 13:55:59,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2021-08-06 13:55:59,135 INFO L87 Difference]: Start difference. First operand 2784 states and 7309 transitions. Second operand has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:56:00,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:56:00,121 INFO L93 Difference]: Finished difference Result 3540 states and 8800 transitions. [2021-08-06 13:56:00,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-08-06 13:56:00,121 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:56:00,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:56:00,125 INFO L225 Difference]: With dead ends: 3540 [2021-08-06 13:56:00,125 INFO L226 Difference]: Without dead ends: 3540 [2021-08-06 13:56:00,126 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 888.9ms TimeCoverageRelationStatistics Valid=310, Invalid=880, Unknown=0, NotChecked=0, Total=1190 [2021-08-06 13:56:00,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3540 states. [2021-08-06 13:56:00,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3540 to 2838. [2021-08-06 13:56:00,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2838 states, 2836 states have (on average 2.6216502115655853) internal successors, (7435), 2837 states have internal predecessors, (7435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:56:00,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2838 states to 2838 states and 7435 transitions. [2021-08-06 13:56:00,155 INFO L78 Accepts]: Start accepts. Automaton has 2838 states and 7435 transitions. Word has length 94 [2021-08-06 13:56:00,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:56:00,155 INFO L470 AbstractCegarLoop]: Abstraction has 2838 states and 7435 transitions. [2021-08-06 13:56:00,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:56:00,155 INFO L276 IsEmpty]: Start isEmpty. Operand 2838 states and 7435 transitions. [2021-08-06 13:56:00,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:56:00,158 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:56:00,158 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:56:00,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-08-06 13:56:00,158 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:56:00,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:56:00,158 INFO L82 PathProgramCache]: Analyzing trace with hash -867661143, now seen corresponding path program 46 times [2021-08-06 13:56:00,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:56:00,158 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121679845] [2021-08-06 13:56:00,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:56:00,158 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:56:00,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:56:00,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:56:00,854 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:56:00,854 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121679845] [2021-08-06 13:56:00,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121679845] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:56:00,854 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:56:00,854 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:56:00,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190938746] [2021-08-06 13:56:00,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:56:00,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:56:00,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:56:00,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:56:00,855 INFO L87 Difference]: Start difference. First operand 2838 states and 7435 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:56:04,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:56:04,097 INFO L93 Difference]: Finished difference Result 6204 states and 15694 transitions. [2021-08-06 13:56:04,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-06 13:56:04,098 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:56:04,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:56:04,104 INFO L225 Difference]: With dead ends: 6204 [2021-08-06 13:56:04,104 INFO L226 Difference]: Without dead ends: 6204 [2021-08-06 13:56:04,105 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 2947.3ms TimeCoverageRelationStatistics Valid=554, Invalid=1516, Unknown=0, NotChecked=0, Total=2070 [2021-08-06 13:56:04,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6204 states. [2021-08-06 13:56:04,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6204 to 3066. [2021-08-06 13:56:04,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3066 states, 3064 states have (on average 2.649804177545692) internal successors, (8119), 3065 states have internal predecessors, (8119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:56:04,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3066 states to 3066 states and 8119 transitions. [2021-08-06 13:56:04,145 INFO L78 Accepts]: Start accepts. Automaton has 3066 states and 8119 transitions. Word has length 94 [2021-08-06 13:56:04,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:56:04,145 INFO L470 AbstractCegarLoop]: Abstraction has 3066 states and 8119 transitions. [2021-08-06 13:56:04,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:56:04,145 INFO L276 IsEmpty]: Start isEmpty. Operand 3066 states and 8119 transitions. [2021-08-06 13:56:04,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:56:04,148 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:56:04,148 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:56:04,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-08-06 13:56:04,148 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:56:04,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:56:04,149 INFO L82 PathProgramCache]: Analyzing trace with hash -909731489, now seen corresponding path program 47 times [2021-08-06 13:56:04,149 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:56:04,149 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836187446] [2021-08-06 13:56:04,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:56:04,149 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:56:04,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:56:04,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:56:04,847 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:56:04,847 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836187446] [2021-08-06 13:56:04,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836187446] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:56:04,847 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:56:04,847 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:56:04,847 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693130315] [2021-08-06 13:56:04,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:56:04,848 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:56:04,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:56:04,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:56:04,848 INFO L87 Difference]: Start difference. First operand 3066 states and 8119 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:56:08,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:56:08,129 INFO L93 Difference]: Finished difference Result 5978 states and 15275 transitions. [2021-08-06 13:56:08,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-06 13:56:08,130 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:56:08,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:56:08,138 INFO L225 Difference]: With dead ends: 5978 [2021-08-06 13:56:08,138 INFO L226 Difference]: Without dead ends: 5978 [2021-08-06 13:56:08,138 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 2896.9ms TimeCoverageRelationStatistics Valid=536, Invalid=1444, Unknown=0, NotChecked=0, Total=1980 [2021-08-06 13:56:08,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5978 states. [2021-08-06 13:56:08,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5978 to 3030. [2021-08-06 13:56:08,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3030 states, 3028 states have (on average 2.645640686922061) internal successors, (8011), 3029 states have internal predecessors, (8011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:56:08,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 8011 transitions. [2021-08-06 13:56:08,191 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 8011 transitions. Word has length 94 [2021-08-06 13:56:08,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:56:08,191 INFO L470 AbstractCegarLoop]: Abstraction has 3030 states and 8011 transitions. [2021-08-06 13:56:08,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:56:08,191 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 8011 transitions. [2021-08-06 13:56:08,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:56:08,195 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:56:08,195 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:56:08,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-08-06 13:56:08,195 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:56:08,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:56:08,195 INFO L82 PathProgramCache]: Analyzing trace with hash -275383103, now seen corresponding path program 48 times [2021-08-06 13:56:08,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:56:08,195 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370410417] [2021-08-06 13:56:08,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:56:08,196 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:56:08,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:56:08,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:56:08,942 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:56:08,942 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370410417] [2021-08-06 13:56:08,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370410417] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:56:08,942 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:56:08,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:56:08,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718885158] [2021-08-06 13:56:08,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:56:08,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:56:08,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:56:08,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:56:08,943 INFO L87 Difference]: Start difference. First operand 3030 states and 8011 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:56:12,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:56:12,120 INFO L93 Difference]: Finished difference Result 5274 states and 13385 transitions. [2021-08-06 13:56:12,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-06 13:56:12,121 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:56:12,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:56:12,127 INFO L225 Difference]: With dead ends: 5274 [2021-08-06 13:56:12,127 INFO L226 Difference]: Without dead ends: 5274 [2021-08-06 13:56:12,127 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 2771.1ms TimeCoverageRelationStatistics Valid=539, Invalid=1531, Unknown=0, NotChecked=0, Total=2070 [2021-08-06 13:56:12,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5274 states. [2021-08-06 13:56:12,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5274 to 3042. [2021-08-06 13:56:12,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3042 states, 3040 states have (on average 2.6450657894736844) internal successors, (8041), 3041 states have internal predecessors, (8041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:56:12,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3042 states to 3042 states and 8041 transitions. [2021-08-06 13:56:12,170 INFO L78 Accepts]: Start accepts. Automaton has 3042 states and 8041 transitions. Word has length 94 [2021-08-06 13:56:12,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:56:12,170 INFO L470 AbstractCegarLoop]: Abstraction has 3042 states and 8041 transitions. [2021-08-06 13:56:12,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:56:12,171 INFO L276 IsEmpty]: Start isEmpty. Operand 3042 states and 8041 transitions. [2021-08-06 13:56:12,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:56:12,173 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:56:12,174 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:56:12,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-08-06 13:56:12,174 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:56:12,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:56:12,174 INFO L82 PathProgramCache]: Analyzing trace with hash -440501959, now seen corresponding path program 49 times [2021-08-06 13:56:12,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:56:12,174 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496714888] [2021-08-06 13:56:12,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:56:12,174 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:56:12,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:56:12,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:56:12,834 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:56:12,834 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496714888] [2021-08-06 13:56:12,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496714888] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:56:12,835 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:56:12,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:56:12,835 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629419900] [2021-08-06 13:56:12,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:56:12,835 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:56:12,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:56:12,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:56:12,836 INFO L87 Difference]: Start difference. First operand 3042 states and 8041 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:56:16,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:56:16,223 INFO L93 Difference]: Finished difference Result 7096 states and 17914 transitions. [2021-08-06 13:56:16,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-06 13:56:16,223 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:56:16,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:56:16,231 INFO L225 Difference]: With dead ends: 7096 [2021-08-06 13:56:16,231 INFO L226 Difference]: Without dead ends: 7096 [2021-08-06 13:56:16,231 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 2945.7ms TimeCoverageRelationStatistics Valid=554, Invalid=1516, Unknown=0, NotChecked=0, Total=2070 [2021-08-06 13:56:16,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7096 states. [2021-08-06 13:56:16,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7096 to 3090. [2021-08-06 13:56:16,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3090 states, 3088 states have (on average 2.650582901554404) internal successors, (8185), 3089 states have internal predecessors, (8185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:56:16,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3090 states to 3090 states and 8185 transitions. [2021-08-06 13:56:16,278 INFO L78 Accepts]: Start accepts. Automaton has 3090 states and 8185 transitions. Word has length 94 [2021-08-06 13:56:16,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:56:16,278 INFO L470 AbstractCegarLoop]: Abstraction has 3090 states and 8185 transitions. [2021-08-06 13:56:16,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:56:16,278 INFO L276 IsEmpty]: Start isEmpty. Operand 3090 states and 8185 transitions. [2021-08-06 13:56:16,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:56:16,281 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:56:16,281 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:56:16,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-08-06 13:56:16,281 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:56:16,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:56:16,282 INFO L82 PathProgramCache]: Analyzing trace with hash -482572305, now seen corresponding path program 50 times [2021-08-06 13:56:16,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:56:16,282 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311727840] [2021-08-06 13:56:16,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:56:16,282 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:56:16,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:56:16,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:56:16,959 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:56:16,959 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311727840] [2021-08-06 13:56:16,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311727840] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:56:16,959 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:56:16,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:56:16,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172155603] [2021-08-06 13:56:16,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:56:16,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:56:16,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:56:16,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:56:16,960 INFO L87 Difference]: Start difference. First operand 3090 states and 8185 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:56:20,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:56:20,284 INFO L93 Difference]: Finished difference Result 7786 states and 19736 transitions. [2021-08-06 13:56:20,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-06 13:56:20,285 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:56:20,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:56:20,294 INFO L225 Difference]: With dead ends: 7786 [2021-08-06 13:56:20,294 INFO L226 Difference]: Without dead ends: 7786 [2021-08-06 13:56:20,294 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 2882.6ms TimeCoverageRelationStatistics Valid=536, Invalid=1444, Unknown=0, NotChecked=0, Total=1980 [2021-08-06 13:56:20,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7786 states. [2021-08-06 13:56:20,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7786 to 3054. [2021-08-06 13:56:20,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3054 states, 3052 states have (on average 2.646461336828309) internal successors, (8077), 3053 states have internal predecessors, (8077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:56:20,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3054 states to 3054 states and 8077 transitions. [2021-08-06 13:56:20,348 INFO L78 Accepts]: Start accepts. Automaton has 3054 states and 8077 transitions. Word has length 94 [2021-08-06 13:56:20,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:56:20,348 INFO L470 AbstractCegarLoop]: Abstraction has 3054 states and 8077 transitions. [2021-08-06 13:56:20,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:56:20,348 INFO L276 IsEmpty]: Start isEmpty. Operand 3054 states and 8077 transitions. [2021-08-06 13:56:20,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:56:20,351 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:56:20,352 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:56:20,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-08-06 13:56:20,352 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:56:20,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:56:20,352 INFO L82 PathProgramCache]: Analyzing trace with hash -130059183, now seen corresponding path program 51 times [2021-08-06 13:56:20,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:56:20,352 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47806651] [2021-08-06 13:56:20,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:56:20,352 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:56:20,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:56:21,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:56:21,022 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:56:21,022 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47806651] [2021-08-06 13:56:21,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47806651] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:56:21,022 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:56:21,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:56:21,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114876518] [2021-08-06 13:56:21,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:56:21,023 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:56:21,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:56:21,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:56:21,023 INFO L87 Difference]: Start difference. First operand 3054 states and 8077 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:56:24,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:56:24,410 INFO L93 Difference]: Finished difference Result 6739 states and 16972 transitions. [2021-08-06 13:56:24,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-06 13:56:24,410 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:56:24,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:56:24,418 INFO L225 Difference]: With dead ends: 6739 [2021-08-06 13:56:24,419 INFO L226 Difference]: Without dead ends: 6739 [2021-08-06 13:56:24,419 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 2867.6ms TimeCoverageRelationStatistics Valid=539, Invalid=1531, Unknown=0, NotChecked=0, Total=2070 [2021-08-06 13:56:24,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6739 states. [2021-08-06 13:56:24,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6739 to 3056. [2021-08-06 13:56:24,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3056 states, 3054 states have (on average 2.6463654223968565) internal successors, (8082), 3055 states have internal predecessors, (8082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:56:24,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3056 states to 3056 states and 8082 transitions. [2021-08-06 13:56:24,464 INFO L78 Accepts]: Start accepts. Automaton has 3056 states and 8082 transitions. Word has length 94 [2021-08-06 13:56:24,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:56:24,465 INFO L470 AbstractCegarLoop]: Abstraction has 3056 states and 8082 transitions. [2021-08-06 13:56:24,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:56:24,465 INFO L276 IsEmpty]: Start isEmpty. Operand 3056 states and 8082 transitions. [2021-08-06 13:56:24,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:56:24,467 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:56:24,467 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:56:24,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-08-06 13:56:24,468 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:56:24,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:56:24,468 INFO L82 PathProgramCache]: Analyzing trace with hash 441759391, now seen corresponding path program 52 times [2021-08-06 13:56:24,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:56:24,468 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45898725] [2021-08-06 13:56:24,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:56:24,468 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:56:24,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:56:25,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:56:25,149 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:56:25,149 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45898725] [2021-08-06 13:56:25,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45898725] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:56:25,150 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:56:25,150 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:56:25,150 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326869058] [2021-08-06 13:56:25,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:56:25,150 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:56:25,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:56:25,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:56:25,150 INFO L87 Difference]: Start difference. First operand 3056 states and 8082 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:56:28,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:56:28,559 INFO L93 Difference]: Finished difference Result 6717 states and 16926 transitions. [2021-08-06 13:56:28,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-08-06 13:56:28,559 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:56:28,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:56:28,579 INFO L225 Difference]: With dead ends: 6717 [2021-08-06 13:56:28,580 INFO L226 Difference]: Without dead ends: 6717 [2021-08-06 13:56:28,580 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 2984.1ms TimeCoverageRelationStatistics Valid=572, Invalid=1590, Unknown=0, NotChecked=0, Total=2162 [2021-08-06 13:56:28,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6717 states. [2021-08-06 13:56:28,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6717 to 3054. [2021-08-06 13:56:28,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3054 states, 3052 states have (on average 2.646461336828309) internal successors, (8077), 3053 states have internal predecessors, (8077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:56:28,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3054 states to 3054 states and 8077 transitions. [2021-08-06 13:56:28,634 INFO L78 Accepts]: Start accepts. Automaton has 3054 states and 8077 transitions. Word has length 94 [2021-08-06 13:56:28,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:56:28,634 INFO L470 AbstractCegarLoop]: Abstraction has 3054 states and 8077 transitions. [2021-08-06 13:56:28,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:56:28,635 INFO L276 IsEmpty]: Start isEmpty. Operand 3054 states and 8077 transitions. [2021-08-06 13:56:28,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:56:28,637 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:56:28,637 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:56:28,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-08-06 13:56:28,638 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:56:28,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:56:28,638 INFO L82 PathProgramCache]: Analyzing trace with hash 1856532945, now seen corresponding path program 53 times [2021-08-06 13:56:28,638 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:56:28,638 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538038733] [2021-08-06 13:56:28,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:56:28,638 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:56:28,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:56:29,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:56:29,321 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:56:29,321 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538038733] [2021-08-06 13:56:29,321 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538038733] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:56:29,321 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:56:29,321 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:56:29,321 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559006164] [2021-08-06 13:56:29,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:56:29,322 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:56:29,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:56:29,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:56:29,322 INFO L87 Difference]: Start difference. First operand 3054 states and 8077 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:56:34,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:56:34,014 INFO L93 Difference]: Finished difference Result 7170 states and 18096 transitions. [2021-08-06 13:56:34,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-08-06 13:56:34,014 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:56:34,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:56:34,022 INFO L225 Difference]: With dead ends: 7170 [2021-08-06 13:56:34,022 INFO L226 Difference]: Without dead ends: 7170 [2021-08-06 13:56:34,022 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 4060.0ms TimeCoverageRelationStatistics Valid=773, Invalid=1879, Unknown=0, NotChecked=0, Total=2652 [2021-08-06 13:56:34,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7170 states. [2021-08-06 13:56:34,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7170 to 3066. [2021-08-06 13:56:34,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3066 states, 3064 states have (on average 2.647845953002611) internal successors, (8113), 3065 states have internal predecessors, (8113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:56:34,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3066 states to 3066 states and 8113 transitions. [2021-08-06 13:56:34,065 INFO L78 Accepts]: Start accepts. Automaton has 3066 states and 8113 transitions. Word has length 94 [2021-08-06 13:56:34,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:56:34,065 INFO L470 AbstractCegarLoop]: Abstraction has 3066 states and 8113 transitions. [2021-08-06 13:56:34,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:56:34,066 INFO L276 IsEmpty]: Start isEmpty. Operand 3066 states and 8113 transitions. [2021-08-06 13:56:34,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:56:34,068 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:56:34,068 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:56:34,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-08-06 13:56:34,068 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:56:34,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:56:34,069 INFO L82 PathProgramCache]: Analyzing trace with hash 1254532137, now seen corresponding path program 54 times [2021-08-06 13:56:34,069 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:56:34,069 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911263278] [2021-08-06 13:56:34,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:56:34,069 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:56:34,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:56:34,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:56:34,734 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:56:34,735 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911263278] [2021-08-06 13:56:34,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911263278] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:56:34,735 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:56:34,735 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:56:34,735 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472749569] [2021-08-06 13:56:34,735 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:56:34,735 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:56:34,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:56:34,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:56:34,736 INFO L87 Difference]: Start difference. First operand 3066 states and 8113 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:56:38,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:56:38,376 INFO L93 Difference]: Finished difference Result 6325 states and 15996 transitions. [2021-08-06 13:56:38,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-08-06 13:56:38,376 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:56:38,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:56:38,384 INFO L225 Difference]: With dead ends: 6325 [2021-08-06 13:56:38,384 INFO L226 Difference]: Without dead ends: 6325 [2021-08-06 13:56:38,384 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 3091.2ms TimeCoverageRelationStatistics Valid=587, Invalid=1575, Unknown=0, NotChecked=0, Total=2162 [2021-08-06 13:56:38,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6325 states. [2021-08-06 13:56:38,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6325 to 3042. [2021-08-06 13:56:38,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3042 states, 3040 states have (on average 2.6450657894736844) internal successors, (8041), 3041 states have internal predecessors, (8041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:56:38,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3042 states to 3042 states and 8041 transitions. [2021-08-06 13:56:38,427 INFO L78 Accepts]: Start accepts. Automaton has 3042 states and 8041 transitions. Word has length 94 [2021-08-06 13:56:38,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:56:38,428 INFO L470 AbstractCegarLoop]: Abstraction has 3042 states and 8041 transitions. [2021-08-06 13:56:38,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:56:38,428 INFO L276 IsEmpty]: Start isEmpty. Operand 3042 states and 8041 transitions. [2021-08-06 13:56:38,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:56:38,430 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:56:38,430 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:56:38,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-08-06 13:56:38,431 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:56:38,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:56:38,431 INFO L82 PathProgramCache]: Analyzing trace with hash 758408361, now seen corresponding path program 55 times [2021-08-06 13:56:38,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:56:38,431 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378384651] [2021-08-06 13:56:38,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:56:38,431 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:56:38,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:56:39,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:56:39,140 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:56:39,140 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378384651] [2021-08-06 13:56:39,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378384651] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:56:39,140 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:56:39,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:56:39,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559661993] [2021-08-06 13:56:39,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:56:39,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:56:39,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:56:39,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:56:39,141 INFO L87 Difference]: Start difference. First operand 3042 states and 8041 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:56:42,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:56:42,275 INFO L93 Difference]: Finished difference Result 5614 states and 14087 transitions. [2021-08-06 13:56:42,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-06 13:56:42,276 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:56:42,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:56:42,281 INFO L225 Difference]: With dead ends: 5614 [2021-08-06 13:56:42,281 INFO L226 Difference]: Without dead ends: 5614 [2021-08-06 13:56:42,281 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 2699.5ms TimeCoverageRelationStatistics Valid=524, Invalid=1546, Unknown=0, NotChecked=0, Total=2070 [2021-08-06 13:56:42,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5614 states. [2021-08-06 13:56:42,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5614 to 3046. [2021-08-06 13:56:42,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3046 states, 3044 states have (on average 2.644875164257556) internal successors, (8051), 3045 states have internal predecessors, (8051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:56:42,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3046 states to 3046 states and 8051 transitions. [2021-08-06 13:56:42,320 INFO L78 Accepts]: Start accepts. Automaton has 3046 states and 8051 transitions. Word has length 94 [2021-08-06 13:56:42,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:56:42,320 INFO L470 AbstractCegarLoop]: Abstraction has 3046 states and 8051 transitions. [2021-08-06 13:56:42,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:56:42,320 INFO L276 IsEmpty]: Start isEmpty. Operand 3046 states and 8051 transitions. [2021-08-06 13:56:42,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:56:42,323 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:56:42,323 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:56:42,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-08-06 13:56:42,323 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:56:42,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:56:42,323 INFO L82 PathProgramCache]: Analyzing trace with hash 699378489, now seen corresponding path program 56 times [2021-08-06 13:56:42,323 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:56:42,324 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984261639] [2021-08-06 13:56:42,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:56:42,324 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:56:42,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:56:42,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:56:42,991 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:56:42,991 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984261639] [2021-08-06 13:56:42,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984261639] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:56:42,991 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:56:42,991 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:56:42,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774221494] [2021-08-06 13:56:42,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:56:42,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:56:42,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:56:42,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:56:42,992 INFO L87 Difference]: Start difference. First operand 3046 states and 8051 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:56:46,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:56:46,131 INFO L93 Difference]: Finished difference Result 5712 states and 14267 transitions. [2021-08-06 13:56:46,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-06 13:56:46,132 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:56:46,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:56:46,137 INFO L225 Difference]: With dead ends: 5712 [2021-08-06 13:56:46,138 INFO L226 Difference]: Without dead ends: 5712 [2021-08-06 13:56:46,138 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 2708.7ms TimeCoverageRelationStatistics Valid=524, Invalid=1546, Unknown=0, NotChecked=0, Total=2070 [2021-08-06 13:56:46,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5712 states. [2021-08-06 13:56:46,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5712 to 3048. [2021-08-06 13:56:46,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3048 states, 3046 states have (on average 2.644780039395929) internal successors, (8056), 3047 states have internal predecessors, (8056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:56:46,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3048 states to 3048 states and 8056 transitions. [2021-08-06 13:56:46,176 INFO L78 Accepts]: Start accepts. Automaton has 3048 states and 8056 transitions. Word has length 94 [2021-08-06 13:56:46,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:56:46,176 INFO L470 AbstractCegarLoop]: Abstraction has 3048 states and 8056 transitions. [2021-08-06 13:56:46,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:56:46,176 INFO L276 IsEmpty]: Start isEmpty. Operand 3048 states and 8056 transitions. [2021-08-06 13:56:46,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:56:46,179 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:56:46,179 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:56:46,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-08-06 13:56:46,179 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:56:46,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:56:46,180 INFO L82 PathProgramCache]: Analyzing trace with hash 1271197063, now seen corresponding path program 57 times [2021-08-06 13:56:46,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:56:46,180 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521156725] [2021-08-06 13:56:46,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:56:46,180 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:56:46,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:56:46,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:56:46,844 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:56:46,844 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521156725] [2021-08-06 13:56:46,844 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521156725] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:56:46,844 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:56:46,844 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:56:46,844 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104781842] [2021-08-06 13:56:46,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:56:46,844 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:56:46,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:56:46,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:56:46,845 INFO L87 Difference]: Start difference. First operand 3048 states and 8056 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:56:50,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:56:50,019 INFO L93 Difference]: Finished difference Result 5536 states and 13910 transitions. [2021-08-06 13:56:50,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-08-06 13:56:50,020 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:56:50,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:56:50,026 INFO L225 Difference]: With dead ends: 5536 [2021-08-06 13:56:50,026 INFO L226 Difference]: Without dead ends: 5536 [2021-08-06 13:56:50,027 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 2806.3ms TimeCoverageRelationStatistics Valid=557, Invalid=1605, Unknown=0, NotChecked=0, Total=2162 [2021-08-06 13:56:50,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5536 states. [2021-08-06 13:56:50,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5536 to 3046. [2021-08-06 13:56:50,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3046 states, 3044 states have (on average 2.644875164257556) internal successors, (8051), 3045 states have internal predecessors, (8051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:56:50,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3046 states to 3046 states and 8051 transitions. [2021-08-06 13:56:50,069 INFO L78 Accepts]: Start accepts. Automaton has 3046 states and 8051 transitions. Word has length 94 [2021-08-06 13:56:50,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:56:50,069 INFO L470 AbstractCegarLoop]: Abstraction has 3046 states and 8051 transitions. [2021-08-06 13:56:50,069 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:56:50,069 INFO L276 IsEmpty]: Start isEmpty. Operand 3046 states and 8051 transitions. [2021-08-06 13:56:50,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:56:50,072 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:56:50,072 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:56:50,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-08-06 13:56:50,072 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:56:50,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:56:50,073 INFO L82 PathProgramCache]: Analyzing trace with hash -1905507483, now seen corresponding path program 58 times [2021-08-06 13:56:50,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:56:50,073 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695941777] [2021-08-06 13:56:50,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:56:50,073 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:56:50,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:56:50,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:56:50,787 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:56:50,787 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695941777] [2021-08-06 13:56:50,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695941777] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:56:50,788 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:56:50,788 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:56:50,788 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917557815] [2021-08-06 13:56:50,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:56:50,788 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:56:50,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:56:50,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:56:50,789 INFO L87 Difference]: Start difference. First operand 3046 states and 8051 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:56:54,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:56:54,186 INFO L93 Difference]: Finished difference Result 7417 states and 18793 transitions. [2021-08-06 13:56:54,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-06 13:56:54,186 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:56:54,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:56:54,195 INFO L225 Difference]: With dead ends: 7417 [2021-08-06 13:56:54,195 INFO L226 Difference]: Without dead ends: 7417 [2021-08-06 13:56:54,195 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 3012.9ms TimeCoverageRelationStatistics Valid=554, Invalid=1516, Unknown=0, NotChecked=0, Total=2070 [2021-08-06 13:56:54,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7417 states. [2021-08-06 13:56:54,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7417 to 3118. [2021-08-06 13:56:54,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3118 states, 3116 states have (on average 2.6530808729139923) internal successors, (8267), 3117 states have internal predecessors, (8267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:56:54,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3118 states to 3118 states and 8267 transitions. [2021-08-06 13:56:54,248 INFO L78 Accepts]: Start accepts. Automaton has 3118 states and 8267 transitions. Word has length 94 [2021-08-06 13:56:54,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:56:54,249 INFO L470 AbstractCegarLoop]: Abstraction has 3118 states and 8267 transitions. [2021-08-06 13:56:54,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:56:54,249 INFO L276 IsEmpty]: Start isEmpty. Operand 3118 states and 8267 transitions. [2021-08-06 13:56:54,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:56:54,252 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:56:54,252 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:56:54,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-08-06 13:56:54,252 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:56:54,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:56:54,252 INFO L82 PathProgramCache]: Analyzing trace with hash -1947577829, now seen corresponding path program 59 times [2021-08-06 13:56:54,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:56:54,253 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616156883] [2021-08-06 13:56:54,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:56:54,253 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:56:54,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:56:54,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:56:54,938 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:56:54,939 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616156883] [2021-08-06 13:56:54,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616156883] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:56:54,939 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:56:54,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:56:54,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817875475] [2021-08-06 13:56:54,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:56:54,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:56:54,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:56:54,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:56:54,940 INFO L87 Difference]: Start difference. First operand 3118 states and 8267 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:56:58,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:56:58,353 INFO L93 Difference]: Finished difference Result 8107 states and 20615 transitions. [2021-08-06 13:56:58,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-06 13:56:58,354 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:56:58,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:56:58,363 INFO L225 Difference]: With dead ends: 8107 [2021-08-06 13:56:58,363 INFO L226 Difference]: Without dead ends: 8107 [2021-08-06 13:56:58,363 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 2915.4ms TimeCoverageRelationStatistics Valid=536, Invalid=1444, Unknown=0, NotChecked=0, Total=1980 [2021-08-06 13:56:58,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8107 states. [2021-08-06 13:56:58,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8107 to 3082. [2021-08-06 13:56:58,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3082 states, 3080 states have (on average 2.649025974025974) internal successors, (8159), 3081 states have internal predecessors, (8159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:56:58,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3082 states to 3082 states and 8159 transitions. [2021-08-06 13:56:58,414 INFO L78 Accepts]: Start accepts. Automaton has 3082 states and 8159 transitions. Word has length 94 [2021-08-06 13:56:58,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:56:58,415 INFO L470 AbstractCegarLoop]: Abstraction has 3082 states and 8159 transitions. [2021-08-06 13:56:58,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:56:58,415 INFO L276 IsEmpty]: Start isEmpty. Operand 3082 states and 8159 transitions. [2021-08-06 13:56:58,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:56:58,418 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:56:58,418 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:56:58,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-08-06 13:56:58,418 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:56:58,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:56:58,418 INFO L82 PathProgramCache]: Analyzing trace with hash -1595064707, now seen corresponding path program 60 times [2021-08-06 13:56:58,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:56:58,419 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218175236] [2021-08-06 13:56:58,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:56:58,419 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:56:58,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:56:59,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:56:59,085 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:56:59,085 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218175236] [2021-08-06 13:56:59,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218175236] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:56:59,085 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:56:59,085 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:56:59,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168040647] [2021-08-06 13:56:59,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:56:59,086 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:56:59,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:56:59,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:56:59,086 INFO L87 Difference]: Start difference. First operand 3082 states and 8159 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:57:02,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:57:02,312 INFO L93 Difference]: Finished difference Result 7813 states and 19698 transitions. [2021-08-06 13:57:02,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-06 13:57:02,312 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:57:02,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:57:02,320 INFO L225 Difference]: With dead ends: 7813 [2021-08-06 13:57:02,321 INFO L226 Difference]: Without dead ends: 7813 [2021-08-06 13:57:02,321 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 2843.4ms TimeCoverageRelationStatistics Valid=539, Invalid=1531, Unknown=0, NotChecked=0, Total=2070 [2021-08-06 13:57:02,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7813 states. [2021-08-06 13:57:02,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7813 to 3084. [2021-08-06 13:57:02,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3084 states, 3082 states have (on average 2.6489292667099287) internal successors, (8164), 3083 states have internal predecessors, (8164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:57:02,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3084 states to 3084 states and 8164 transitions. [2021-08-06 13:57:02,369 INFO L78 Accepts]: Start accepts. Automaton has 3084 states and 8164 transitions. Word has length 94 [2021-08-06 13:57:02,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:57:02,369 INFO L470 AbstractCegarLoop]: Abstraction has 3084 states and 8164 transitions. [2021-08-06 13:57:02,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:57:02,369 INFO L276 IsEmpty]: Start isEmpty. Operand 3084 states and 8164 transitions. [2021-08-06 13:57:02,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:57:02,372 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:57:02,372 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:57:02,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-08-06 13:57:02,372 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:57:02,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:57:02,373 INFO L82 PathProgramCache]: Analyzing trace with hash -1023246133, now seen corresponding path program 61 times [2021-08-06 13:57:02,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:57:02,373 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178669116] [2021-08-06 13:57:02,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:57:02,373 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:57:02,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:57:03,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:57:03,040 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:57:03,040 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178669116] [2021-08-06 13:57:03,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178669116] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:57:03,040 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:57:03,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:57:03,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267411916] [2021-08-06 13:57:03,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:57:03,041 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:57:03,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:57:03,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:57:03,042 INFO L87 Difference]: Start difference. First operand 3084 states and 8164 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:57:06,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:57:06,480 INFO L93 Difference]: Finished difference Result 7791 states and 19652 transitions. [2021-08-06 13:57:06,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-08-06 13:57:06,480 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:57:06,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:57:06,488 INFO L225 Difference]: With dead ends: 7791 [2021-08-06 13:57:06,488 INFO L226 Difference]: Without dead ends: 7791 [2021-08-06 13:57:06,488 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 2963.1ms TimeCoverageRelationStatistics Valid=572, Invalid=1590, Unknown=0, NotChecked=0, Total=2162 [2021-08-06 13:57:06,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7791 states. [2021-08-06 13:57:06,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7791 to 3082. [2021-08-06 13:57:06,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3082 states, 3080 states have (on average 2.649025974025974) internal successors, (8159), 3081 states have internal predecessors, (8159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:57:06,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3082 states to 3082 states and 8159 transitions. [2021-08-06 13:57:06,533 INFO L78 Accepts]: Start accepts. Automaton has 3082 states and 8159 transitions. Word has length 94 [2021-08-06 13:57:06,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:57:06,533 INFO L470 AbstractCegarLoop]: Abstraction has 3082 states and 8159 transitions. [2021-08-06 13:57:06,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:57:06,533 INFO L276 IsEmpty]: Start isEmpty. Operand 3082 states and 8159 transitions. [2021-08-06 13:57:06,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:57:06,536 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:57:06,536 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:57:06,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-08-06 13:57:06,536 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:57:06,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:57:06,537 INFO L82 PathProgramCache]: Analyzing trace with hash 391527421, now seen corresponding path program 62 times [2021-08-06 13:57:06,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:57:06,537 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748050410] [2021-08-06 13:57:06,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:57:06,537 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:57:06,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:57:07,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:57:07,247 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:57:07,247 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748050410] [2021-08-06 13:57:07,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748050410] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:57:07,247 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:57:07,247 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:57:07,247 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430133721] [2021-08-06 13:57:07,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:57:07,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:57:07,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:57:07,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:57:07,248 INFO L87 Difference]: Start difference. First operand 3082 states and 8159 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:57:11,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:57:11,795 INFO L93 Difference]: Finished difference Result 9273 states and 23365 transitions. [2021-08-06 13:57:11,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-08-06 13:57:11,795 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:57:11,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:57:11,804 INFO L225 Difference]: With dead ends: 9273 [2021-08-06 13:57:11,804 INFO L226 Difference]: Without dead ends: 9273 [2021-08-06 13:57:11,805 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 4052.3ms TimeCoverageRelationStatistics Valid=773, Invalid=1879, Unknown=0, NotChecked=0, Total=2652 [2021-08-06 13:57:11,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9273 states. [2021-08-06 13:57:11,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9273 to 3094. [2021-08-06 13:57:11,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3094 states, 3092 states have (on average 2.6503880983182406) internal successors, (8195), 3093 states have internal predecessors, (8195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:57:11,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3094 states to 3094 states and 8195 transitions. [2021-08-06 13:57:11,872 INFO L78 Accepts]: Start accepts. Automaton has 3094 states and 8195 transitions. Word has length 94 [2021-08-06 13:57:11,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:57:11,873 INFO L470 AbstractCegarLoop]: Abstraction has 3094 states and 8195 transitions. [2021-08-06 13:57:11,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:57:11,873 INFO L276 IsEmpty]: Start isEmpty. Operand 3094 states and 8195 transitions. [2021-08-06 13:57:11,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:57:11,877 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:57:11,877 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:57:11,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-08-06 13:57:11,877 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:57:11,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:57:11,877 INFO L82 PathProgramCache]: Analyzing trace with hash -210473387, now seen corresponding path program 63 times [2021-08-06 13:57:11,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:57:11,878 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689917101] [2021-08-06 13:57:11,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:57:11,878 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:57:11,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:57:12,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:57:12,559 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:57:12,559 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689917101] [2021-08-06 13:57:12,559 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689917101] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:57:12,559 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:57:12,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:57:12,560 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484715179] [2021-08-06 13:57:12,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:57:12,560 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:57:12,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:57:12,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:57:12,560 INFO L87 Difference]: Start difference. First operand 3094 states and 8195 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:57:16,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:57:16,147 INFO L93 Difference]: Finished difference Result 8428 states and 21265 transitions. [2021-08-06 13:57:16,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-08-06 13:57:16,148 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:57:16,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:57:16,156 INFO L225 Difference]: With dead ends: 8428 [2021-08-06 13:57:16,156 INFO L226 Difference]: Without dead ends: 8428 [2021-08-06 13:57:16,157 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 3099.5ms TimeCoverageRelationStatistics Valid=587, Invalid=1575, Unknown=0, NotChecked=0, Total=2162 [2021-08-06 13:57:16,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8428 states. [2021-08-06 13:57:16,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8428 to 3070. [2021-08-06 13:57:16,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3070 states, 3068 states have (on average 2.6476531942633637) internal successors, (8123), 3069 states have internal predecessors, (8123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:57:16,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3070 states to 3070 states and 8123 transitions. [2021-08-06 13:57:16,202 INFO L78 Accepts]: Start accepts. Automaton has 3070 states and 8123 transitions. Word has length 94 [2021-08-06 13:57:16,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:57:16,202 INFO L470 AbstractCegarLoop]: Abstraction has 3070 states and 8123 transitions. [2021-08-06 13:57:16,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:57:16,202 INFO L276 IsEmpty]: Start isEmpty. Operand 3070 states and 8123 transitions. [2021-08-06 13:57:16,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:57:16,205 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:57:16,205 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:57:16,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-08-06 13:57:16,205 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:57:16,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:57:16,205 INFO L82 PathProgramCache]: Analyzing trace with hash -170658203, now seen corresponding path program 64 times [2021-08-06 13:57:16,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:57:16,205 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666651879] [2021-08-06 13:57:16,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:57:16,205 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:57:16,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:57:16,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:57:16,864 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:57:16,864 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666651879] [2021-08-06 13:57:16,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666651879] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:57:16,864 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:57:16,864 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:57:16,864 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80557332] [2021-08-06 13:57:16,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:57:16,865 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:57:16,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:57:16,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:57:16,865 INFO L87 Difference]: Start difference. First operand 3070 states and 8123 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:57:19,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:57:19,926 INFO L93 Difference]: Finished difference Result 7056 states and 17820 transitions. [2021-08-06 13:57:19,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-06 13:57:19,926 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:57:19,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:57:19,934 INFO L225 Difference]: With dead ends: 7056 [2021-08-06 13:57:19,934 INFO L226 Difference]: Without dead ends: 7056 [2021-08-06 13:57:19,934 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 2687.7ms TimeCoverageRelationStatistics Valid=524, Invalid=1546, Unknown=0, NotChecked=0, Total=2070 [2021-08-06 13:57:19,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7056 states. [2021-08-06 13:57:19,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7056 to 3076. [2021-08-06 13:57:19,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3076 states, 3074 states have (on average 2.6473649967469095) internal successors, (8138), 3075 states have internal predecessors, (8138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:57:19,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3076 states to 3076 states and 8138 transitions. [2021-08-06 13:57:19,982 INFO L78 Accepts]: Start accepts. Automaton has 3076 states and 8138 transitions. Word has length 94 [2021-08-06 13:57:19,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:57:19,982 INFO L470 AbstractCegarLoop]: Abstraction has 3076 states and 8138 transitions. [2021-08-06 13:57:19,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:57:19,982 INFO L276 IsEmpty]: Start isEmpty. Operand 3076 states and 8138 transitions. [2021-08-06 13:57:19,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:57:19,985 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:57:19,985 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:57:19,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-08-06 13:57:19,985 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:57:19,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:57:19,985 INFO L82 PathProgramCache]: Analyzing trace with hash 401160371, now seen corresponding path program 65 times [2021-08-06 13:57:19,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:57:19,985 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363468466] [2021-08-06 13:57:19,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:57:19,986 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:57:20,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:57:20,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:57:20,665 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:57:20,665 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363468466] [2021-08-06 13:57:20,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363468466] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:57:20,665 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:57:20,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:57:20,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042647031] [2021-08-06 13:57:20,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:57:20,666 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:57:20,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:57:20,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:57:20,666 INFO L87 Difference]: Start difference. First operand 3076 states and 8138 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:57:24,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:57:24,021 INFO L93 Difference]: Finished difference Result 7285 states and 18267 transitions. [2021-08-06 13:57:24,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-08-06 13:57:24,021 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:57:24,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:57:24,029 INFO L225 Difference]: With dead ends: 7285 [2021-08-06 13:57:24,029 INFO L226 Difference]: Without dead ends: 7285 [2021-08-06 13:57:24,029 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 2880.9ms TimeCoverageRelationStatistics Valid=557, Invalid=1605, Unknown=0, NotChecked=0, Total=2162 [2021-08-06 13:57:24,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7285 states. [2021-08-06 13:57:24,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7285 to 3074. [2021-08-06 13:57:24,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3074 states, 3072 states have (on average 2.6474609375) internal successors, (8133), 3073 states have internal predecessors, (8133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:57:24,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3074 states to 3074 states and 8133 transitions. [2021-08-06 13:57:24,080 INFO L78 Accepts]: Start accepts. Automaton has 3074 states and 8133 transitions. Word has length 94 [2021-08-06 13:57:24,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:57:24,080 INFO L470 AbstractCegarLoop]: Abstraction has 3074 states and 8133 transitions. [2021-08-06 13:57:24,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:57:24,081 INFO L276 IsEmpty]: Start isEmpty. Operand 3074 states and 8133 transitions. [2021-08-06 13:57:24,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:57:24,083 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:57:24,084 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:57:24,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-08-06 13:57:24,084 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:57:24,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:57:24,084 INFO L82 PathProgramCache]: Analyzing trace with hash -159485015, now seen corresponding path program 66 times [2021-08-06 13:57:24,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:57:24,084 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080971887] [2021-08-06 13:57:24,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:57:24,084 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:57:24,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:57:24,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:57:24,754 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:57:24,754 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080971887] [2021-08-06 13:57:24,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080971887] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:57:24,754 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:57:24,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:57:24,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040069272] [2021-08-06 13:57:24,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:57:24,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:57:24,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:57:24,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:57:24,755 INFO L87 Difference]: Start difference. First operand 3074 states and 8133 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:57:28,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:57:28,205 INFO L93 Difference]: Finished difference Result 7066 states and 17845 transitions. [2021-08-06 13:57:28,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-08-06 13:57:28,206 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:57:28,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:57:28,214 INFO L225 Difference]: With dead ends: 7066 [2021-08-06 13:57:28,214 INFO L226 Difference]: Without dead ends: 7066 [2021-08-06 13:57:28,215 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 3039.4ms TimeCoverageRelationStatistics Valid=589, Invalid=1667, Unknown=0, NotChecked=0, Total=2256 [2021-08-06 13:57:28,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7066 states. [2021-08-06 13:57:28,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7066 to 3070. [2021-08-06 13:57:28,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3070 states, 3068 states have (on average 2.6476531942633637) internal successors, (8123), 3069 states have internal predecessors, (8123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:57:28,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3070 states to 3070 states and 8123 transitions. [2021-08-06 13:57:28,268 INFO L78 Accepts]: Start accepts. Automaton has 3070 states and 8123 transitions. Word has length 94 [2021-08-06 13:57:28,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:57:28,268 INFO L470 AbstractCegarLoop]: Abstraction has 3070 states and 8123 transitions. [2021-08-06 13:57:28,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:57:28,268 INFO L276 IsEmpty]: Start isEmpty. Operand 3070 states and 8123 transitions. [2021-08-06 13:57:28,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:57:28,271 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:57:28,271 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:57:28,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-08-06 13:57:28,271 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:57:28,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:57:28,272 INFO L82 PathProgramCache]: Analyzing trace with hash 1242085275, now seen corresponding path program 67 times [2021-08-06 13:57:28,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:57:28,272 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362863372] [2021-08-06 13:57:28,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:57:28,272 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:57:28,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:57:28,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:57:28,981 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:57:28,981 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362863372] [2021-08-06 13:57:28,981 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362863372] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:57:28,981 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:57:28,981 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:57:28,981 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179476285] [2021-08-06 13:57:28,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:57:28,982 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:57:28,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:57:28,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:57:28,982 INFO L87 Difference]: Start difference. First operand 3070 states and 8123 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:57:33,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:57:33,838 INFO L93 Difference]: Finished difference Result 7536 states and 19068 transitions. [2021-08-06 13:57:33,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-08-06 13:57:33,839 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:57:33,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:57:33,847 INFO L225 Difference]: With dead ends: 7536 [2021-08-06 13:57:33,847 INFO L226 Difference]: Without dead ends: 7536 [2021-08-06 13:57:33,847 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 4255.9ms TimeCoverageRelationStatistics Valid=828, Invalid=2034, Unknown=0, NotChecked=0, Total=2862 [2021-08-06 13:57:33,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7536 states. [2021-08-06 13:57:33,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7536 to 3106. [2021-08-06 13:57:33,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3106 states, 3104 states have (on average 2.6517396907216493) internal successors, (8231), 3105 states have internal predecessors, (8231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:57:33,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3106 states to 3106 states and 8231 transitions. [2021-08-06 13:57:33,891 INFO L78 Accepts]: Start accepts. Automaton has 3106 states and 8231 transitions. Word has length 94 [2021-08-06 13:57:33,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:57:33,892 INFO L470 AbstractCegarLoop]: Abstraction has 3106 states and 8231 transitions. [2021-08-06 13:57:33,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:57:33,892 INFO L276 IsEmpty]: Start isEmpty. Operand 3106 states and 8231 transitions. [2021-08-06 13:57:33,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:57:33,895 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:57:33,895 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:57:33,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-08-06 13:57:33,895 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:57:33,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:57:33,895 INFO L82 PathProgramCache]: Analyzing trace with hash 640084467, now seen corresponding path program 68 times [2021-08-06 13:57:33,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:57:33,895 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032401477] [2021-08-06 13:57:33,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:57:33,896 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:57:33,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:57:34,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:57:34,556 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:57:34,556 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032401477] [2021-08-06 13:57:34,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032401477] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:57:34,556 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:57:34,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:57:34,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683373476] [2021-08-06 13:57:34,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:57:34,557 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:57:34,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:57:34,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:57:34,557 INFO L87 Difference]: Start difference. First operand 3106 states and 8231 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:57:39,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:57:39,405 INFO L93 Difference]: Finished difference Result 7745 states and 19423 transitions. [2021-08-06 13:57:39,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-08-06 13:57:39,406 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:57:39,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:57:39,414 INFO L225 Difference]: With dead ends: 7745 [2021-08-06 13:57:39,414 INFO L226 Difference]: Without dead ends: 7745 [2021-08-06 13:57:39,414 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 4214.5ms TimeCoverageRelationStatistics Valid=812, Invalid=2050, Unknown=0, NotChecked=0, Total=2862 [2021-08-06 13:57:39,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7745 states. [2021-08-06 13:57:39,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7745 to 3094. [2021-08-06 13:57:39,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3094 states, 3092 states have (on average 2.6503880983182406) internal successors, (8195), 3093 states have internal predecessors, (8195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:57:39,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3094 states to 3094 states and 8195 transitions. [2021-08-06 13:57:39,458 INFO L78 Accepts]: Start accepts. Automaton has 3094 states and 8195 transitions. Word has length 94 [2021-08-06 13:57:39,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:57:39,459 INFO L470 AbstractCegarLoop]: Abstraction has 3094 states and 8195 transitions. [2021-08-06 13:57:39,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:57:39,459 INFO L276 IsEmpty]: Start isEmpty. Operand 3094 states and 8195 transitions. [2021-08-06 13:57:39,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:57:39,462 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:57:39,462 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:57:39,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-08-06 13:57:39,462 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:57:39,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:57:39,462 INFO L82 PathProgramCache]: Analyzing trace with hash -733333665, now seen corresponding path program 69 times [2021-08-06 13:57:39,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:57:39,462 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886432973] [2021-08-06 13:57:39,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:57:39,462 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:57:39,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:57:40,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:57:40,133 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:57:40,133 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886432973] [2021-08-06 13:57:40,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886432973] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:57:40,134 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:57:40,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:57:40,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402872145] [2021-08-06 13:57:40,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:57:40,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:57:40,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:57:40,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:57:40,134 INFO L87 Difference]: Start difference. First operand 3094 states and 8195 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:57:43,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:57:43,762 INFO L93 Difference]: Finished difference Result 6610 states and 16746 transitions. [2021-08-06 13:57:43,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-08-06 13:57:43,763 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:57:43,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:57:43,770 INFO L225 Difference]: With dead ends: 6610 [2021-08-06 13:57:43,771 INFO L226 Difference]: Without dead ends: 6610 [2021-08-06 13:57:43,771 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 3133.5ms TimeCoverageRelationStatistics Valid=604, Invalid=1652, Unknown=0, NotChecked=0, Total=2256 [2021-08-06 13:57:43,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6610 states. [2021-08-06 13:57:43,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6610 to 3046. [2021-08-06 13:57:43,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3046 states, 3044 states have (on average 2.644875164257556) internal successors, (8051), 3045 states have internal predecessors, (8051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:57:43,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3046 states to 3046 states and 8051 transitions. [2021-08-06 13:57:43,818 INFO L78 Accepts]: Start accepts. Automaton has 3046 states and 8051 transitions. Word has length 94 [2021-08-06 13:57:43,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:57:43,818 INFO L470 AbstractCegarLoop]: Abstraction has 3046 states and 8051 transitions. [2021-08-06 13:57:43,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:57:43,819 INFO L276 IsEmpty]: Start isEmpty. Operand 3046 states and 8051 transitions. [2021-08-06 13:57:43,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:57:43,822 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:57:43,822 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:57:43,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-08-06 13:57:43,822 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:57:43,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:57:43,822 INFO L82 PathProgramCache]: Analyzing trace with hash 1965337025, now seen corresponding path program 70 times [2021-08-06 13:57:43,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:57:43,822 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987746979] [2021-08-06 13:57:43,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:57:43,823 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:57:43,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:57:44,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:57:44,484 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:57:44,484 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987746979] [2021-08-06 13:57:44,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987746979] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:57:44,484 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:57:44,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:57:44,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101803393] [2021-08-06 13:57:44,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:57:44,485 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:57:44,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:57:44,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:57:44,485 INFO L87 Difference]: Start difference. First operand 3046 states and 8051 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:57:47,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:57:47,473 INFO L93 Difference]: Finished difference Result 5707 states and 14306 transitions. [2021-08-06 13:57:47,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-06 13:57:47,473 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:57:47,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:57:47,479 INFO L225 Difference]: With dead ends: 5707 [2021-08-06 13:57:47,479 INFO L226 Difference]: Without dead ends: 5707 [2021-08-06 13:57:47,479 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 2555.8ms TimeCoverageRelationStatistics Valid=509, Invalid=1561, Unknown=0, NotChecked=0, Total=2070 [2021-08-06 13:57:47,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5707 states. [2021-08-06 13:57:47,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5707 to 3058. [2021-08-06 13:57:47,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3058 states, 3056 states have (on average 2.6443062827225132) internal successors, (8081), 3057 states have internal predecessors, (8081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:57:47,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3058 states to 3058 states and 8081 transitions. [2021-08-06 13:57:47,525 INFO L78 Accepts]: Start accepts. Automaton has 3058 states and 8081 transitions. Word has length 94 [2021-08-06 13:57:47,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:57:47,525 INFO L470 AbstractCegarLoop]: Abstraction has 3058 states and 8081 transitions. [2021-08-06 13:57:47,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:57:47,525 INFO L276 IsEmpty]: Start isEmpty. Operand 3058 states and 8081 transitions. [2021-08-06 13:57:47,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:57:47,528 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:57:47,529 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:57:47,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-08-06 13:57:47,529 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:57:47,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:57:47,529 INFO L82 PathProgramCache]: Analyzing trace with hash 1906307153, now seen corresponding path program 71 times [2021-08-06 13:57:47,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:57:47,529 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786986546] [2021-08-06 13:57:47,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:57:47,529 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:57:47,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:57:48,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:57:48,209 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:57:48,209 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786986546] [2021-08-06 13:57:48,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786986546] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:57:48,209 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:57:48,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:57:48,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419470219] [2021-08-06 13:57:48,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:57:48,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:57:48,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:57:48,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:57:48,210 INFO L87 Difference]: Start difference. First operand 3058 states and 8081 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:57:51,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:57:51,177 INFO L93 Difference]: Finished difference Result 6114 states and 15115 transitions. [2021-08-06 13:57:51,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-06 13:57:51,178 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:57:51,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:57:51,185 INFO L225 Difference]: With dead ends: 6114 [2021-08-06 13:57:51,185 INFO L226 Difference]: Without dead ends: 6114 [2021-08-06 13:57:51,185 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 2575.7ms TimeCoverageRelationStatistics Valid=509, Invalid=1561, Unknown=0, NotChecked=0, Total=2070 [2021-08-06 13:57:51,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6114 states. [2021-08-06 13:57:51,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6114 to 3060. [2021-08-06 13:57:51,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3060 states, 3058 states have (on average 2.644211903204709) internal successors, (8086), 3059 states have internal predecessors, (8086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:57:51,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3060 states to 3060 states and 8086 transitions. [2021-08-06 13:57:51,232 INFO L78 Accepts]: Start accepts. Automaton has 3060 states and 8086 transitions. Word has length 94 [2021-08-06 13:57:51,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:57:51,232 INFO L470 AbstractCegarLoop]: Abstraction has 3060 states and 8086 transitions. [2021-08-06 13:57:51,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:57:51,232 INFO L276 IsEmpty]: Start isEmpty. Operand 3060 states and 8086 transitions. [2021-08-06 13:57:51,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:57:51,235 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:57:51,235 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:57:51,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-08-06 13:57:51,235 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:57:51,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:57:51,235 INFO L82 PathProgramCache]: Analyzing trace with hash -1816841569, now seen corresponding path program 72 times [2021-08-06 13:57:51,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:57:51,235 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630380068] [2021-08-06 13:57:51,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:57:51,235 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:57:51,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:57:51,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:57:51,929 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:57:51,929 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630380068] [2021-08-06 13:57:51,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630380068] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:57:51,929 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:57:51,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:57:51,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139303937] [2021-08-06 13:57:51,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:57:51,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:57:51,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:57:51,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:57:51,930 INFO L87 Difference]: Start difference. First operand 3060 states and 8086 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:57:55,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:57:55,108 INFO L93 Difference]: Finished difference Result 5938 states and 14758 transitions. [2021-08-06 13:57:55,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-08-06 13:57:55,108 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:57:55,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:57:55,115 INFO L225 Difference]: With dead ends: 5938 [2021-08-06 13:57:55,115 INFO L226 Difference]: Without dead ends: 5938 [2021-08-06 13:57:55,115 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 2749.3ms TimeCoverageRelationStatistics Valid=542, Invalid=1620, Unknown=0, NotChecked=0, Total=2162 [2021-08-06 13:57:55,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5938 states. [2021-08-06 13:57:55,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5938 to 3054. [2021-08-06 13:57:55,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3054 states, 3052 states have (on average 2.6444954128440368) internal successors, (8071), 3053 states have internal predecessors, (8071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:57:55,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3054 states to 3054 states and 8071 transitions. [2021-08-06 13:57:55,168 INFO L78 Accepts]: Start accepts. Automaton has 3054 states and 8071 transitions. Word has length 94 [2021-08-06 13:57:55,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:57:55,168 INFO L470 AbstractCegarLoop]: Abstraction has 3054 states and 8071 transitions. [2021-08-06 13:57:55,168 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:57:55,168 INFO L276 IsEmpty]: Start isEmpty. Operand 3054 states and 8071 transitions. [2021-08-06 13:57:55,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:57:55,171 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:57:55,171 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:57:55,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-08-06 13:57:55,171 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:57:55,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:57:55,171 INFO L82 PathProgramCache]: Analyzing trace with hash -227894147, now seen corresponding path program 73 times [2021-08-06 13:57:55,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:57:55,171 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750862231] [2021-08-06 13:57:55,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:57:55,171 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:57:55,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:57:55,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:57:55,816 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:57:55,816 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750862231] [2021-08-06 13:57:55,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750862231] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:57:55,816 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:57:55,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:57:55,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495245249] [2021-08-06 13:57:55,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:57:55,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:57:55,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:57:55,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:57:55,817 INFO L87 Difference]: Start difference. First operand 3054 states and 8071 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:57:58,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:57:58,820 INFO L93 Difference]: Finished difference Result 5831 states and 14542 transitions. [2021-08-06 13:57:58,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-06 13:57:58,821 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:57:58,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:57:58,827 INFO L225 Difference]: With dead ends: 5831 [2021-08-06 13:57:58,827 INFO L226 Difference]: Without dead ends: 5831 [2021-08-06 13:57:58,827 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 2575.0ms TimeCoverageRelationStatistics Valid=509, Invalid=1561, Unknown=0, NotChecked=0, Total=2070 [2021-08-06 13:57:58,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5831 states. [2021-08-06 13:57:58,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5831 to 3060. [2021-08-06 13:57:58,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3060 states, 3058 states have (on average 2.644211903204709) internal successors, (8086), 3059 states have internal predecessors, (8086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:57:58,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3060 states to 3060 states and 8086 transitions. [2021-08-06 13:57:58,869 INFO L78 Accepts]: Start accepts. Automaton has 3060 states and 8086 transitions. Word has length 94 [2021-08-06 13:57:58,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:57:58,869 INFO L470 AbstractCegarLoop]: Abstraction has 3060 states and 8086 transitions. [2021-08-06 13:57:58,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:57:58,869 INFO L276 IsEmpty]: Start isEmpty. Operand 3060 states and 8086 transitions. [2021-08-06 13:57:58,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:57:58,872 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:57:58,872 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:57:58,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-08-06 13:57:58,872 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:57:58,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:57:58,873 INFO L82 PathProgramCache]: Analyzing trace with hash 343924427, now seen corresponding path program 74 times [2021-08-06 13:57:58,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:57:58,873 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608584606] [2021-08-06 13:57:58,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:57:58,873 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:57:58,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:57:59,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:57:59,540 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:57:59,540 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608584606] [2021-08-06 13:57:59,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608584606] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:57:59,540 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:57:59,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:57:59,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937686256] [2021-08-06 13:57:59,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:57:59,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:57:59,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:57:59,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:57:59,541 INFO L87 Difference]: Start difference. First operand 3060 states and 8086 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:58:02,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:58:02,845 INFO L93 Difference]: Finished difference Result 6060 states and 14989 transitions. [2021-08-06 13:58:02,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-08-06 13:58:02,845 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:58:02,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:58:02,851 INFO L225 Difference]: With dead ends: 6060 [2021-08-06 13:58:02,851 INFO L226 Difference]: Without dead ends: 6060 [2021-08-06 13:58:02,851 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 2831.0ms TimeCoverageRelationStatistics Valid=542, Invalid=1620, Unknown=0, NotChecked=0, Total=2162 [2021-08-06 13:58:02,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6060 states. [2021-08-06 13:58:02,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6060 to 3058. [2021-08-06 13:58:02,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3058 states, 3056 states have (on average 2.6443062827225132) internal successors, (8081), 3057 states have internal predecessors, (8081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:58:02,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3058 states to 3058 states and 8081 transitions. [2021-08-06 13:58:02,892 INFO L78 Accepts]: Start accepts. Automaton has 3058 states and 8081 transitions. Word has length 94 [2021-08-06 13:58:02,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:58:02,892 INFO L470 AbstractCegarLoop]: Abstraction has 3058 states and 8081 transitions. [2021-08-06 13:58:02,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:58:02,892 INFO L276 IsEmpty]: Start isEmpty. Operand 3058 states and 8081 transitions. [2021-08-06 13:58:02,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:58:02,895 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:58:02,895 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:58:02,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-08-06 13:58:02,895 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:58:02,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:58:02,895 INFO L82 PathProgramCache]: Analyzing trace with hash -216720959, now seen corresponding path program 75 times [2021-08-06 13:58:02,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:58:02,895 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83120538] [2021-08-06 13:58:02,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:58:02,896 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:58:02,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:58:03,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:58:03,567 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:58:03,568 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83120538] [2021-08-06 13:58:03,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83120538] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:58:03,568 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:58:03,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:58:03,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869678325] [2021-08-06 13:58:03,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:58:03,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:58:03,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:58:03,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:58:03,569 INFO L87 Difference]: Start difference. First operand 3058 states and 8081 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:58:06,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:58:06,958 INFO L93 Difference]: Finished difference Result 5653 states and 14180 transitions. [2021-08-06 13:58:06,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-08-06 13:58:06,959 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:58:06,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:58:06,965 INFO L225 Difference]: With dead ends: 5653 [2021-08-06 13:58:06,965 INFO L226 Difference]: Without dead ends: 5653 [2021-08-06 13:58:06,966 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 2920.3ms TimeCoverageRelationStatistics Valid=574, Invalid=1682, Unknown=0, NotChecked=0, Total=2256 [2021-08-06 13:58:06,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5653 states. [2021-08-06 13:58:07,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5653 to 3054. [2021-08-06 13:58:07,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3054 states, 3052 states have (on average 2.6444954128440368) internal successors, (8071), 3053 states have internal predecessors, (8071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:58:07,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3054 states to 3054 states and 8071 transitions. [2021-08-06 13:58:07,022 INFO L78 Accepts]: Start accepts. Automaton has 3054 states and 8071 transitions. Word has length 94 [2021-08-06 13:58:07,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:58:07,022 INFO L470 AbstractCegarLoop]: Abstraction has 3054 states and 8071 transitions. [2021-08-06 13:58:07,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:58:07,022 INFO L276 IsEmpty]: Start isEmpty. Operand 3054 states and 8071 transitions. [2021-08-06 13:58:07,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:58:07,025 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:58:07,025 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:58:07,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-08-06 13:58:07,025 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:58:07,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:58:07,026 INFO L82 PathProgramCache]: Analyzing trace with hash 1161665859, now seen corresponding path program 76 times [2021-08-06 13:58:07,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:58:07,026 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279728492] [2021-08-06 13:58:07,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:58:07,026 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:58:07,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:58:07,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:58:07,731 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:58:07,731 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279728492] [2021-08-06 13:58:07,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279728492] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:58:07,731 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:58:07,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:58:07,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446428462] [2021-08-06 13:58:07,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:58:07,732 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:58:07,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:58:07,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:58:07,732 INFO L87 Difference]: Start difference. First operand 3054 states and 8071 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:58:11,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:58:11,051 INFO L93 Difference]: Finished difference Result 7750 states and 19702 transitions. [2021-08-06 13:58:11,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-06 13:58:11,052 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:58:11,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:58:11,060 INFO L225 Difference]: With dead ends: 7750 [2021-08-06 13:58:11,060 INFO L226 Difference]: Without dead ends: 7750 [2021-08-06 13:58:11,060 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 2940.1ms TimeCoverageRelationStatistics Valid=554, Invalid=1516, Unknown=0, NotChecked=0, Total=2070 [2021-08-06 13:58:11,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7750 states. [2021-08-06 13:58:11,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7750 to 3138. [2021-08-06 13:58:11,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3138 states, 3136 states have (on average 2.654017857142857) internal successors, (8323), 3137 states have internal predecessors, (8323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:58:11,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3138 states to 3138 states and 8323 transitions. [2021-08-06 13:58:11,105 INFO L78 Accepts]: Start accepts. Automaton has 3138 states and 8323 transitions. Word has length 94 [2021-08-06 13:58:11,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:58:11,106 INFO L470 AbstractCegarLoop]: Abstraction has 3138 states and 8323 transitions. [2021-08-06 13:58:11,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:58:11,106 INFO L276 IsEmpty]: Start isEmpty. Operand 3138 states and 8323 transitions. [2021-08-06 13:58:11,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:58:11,109 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:58:11,110 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:58:11,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2021-08-06 13:58:11,110 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:58:11,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:58:11,110 INFO L82 PathProgramCache]: Analyzing trace with hash 1119595513, now seen corresponding path program 77 times [2021-08-06 13:58:11,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:58:11,110 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012382924] [2021-08-06 13:58:11,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:58:11,110 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:58:11,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:58:11,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:58:11,783 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:58:11,783 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012382924] [2021-08-06 13:58:11,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012382924] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:58:11,783 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:58:11,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:58:11,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002006584] [2021-08-06 13:58:11,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:58:11,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:58:11,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:58:11,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:58:11,784 INFO L87 Difference]: Start difference. First operand 3138 states and 8323 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:58:15,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:58:15,116 INFO L93 Difference]: Finished difference Result 8440 states and 21524 transitions. [2021-08-06 13:58:15,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-06 13:58:15,116 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:58:15,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:58:15,126 INFO L225 Difference]: With dead ends: 8440 [2021-08-06 13:58:15,126 INFO L226 Difference]: Without dead ends: 8440 [2021-08-06 13:58:15,127 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 2875.0ms TimeCoverageRelationStatistics Valid=536, Invalid=1444, Unknown=0, NotChecked=0, Total=1980 [2021-08-06 13:58:15,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8440 states. [2021-08-06 13:58:15,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8440 to 3102. [2021-08-06 13:58:15,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3102 states, 3100 states have (on average 2.65) internal successors, (8215), 3101 states have internal predecessors, (8215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:58:15,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3102 states to 3102 states and 8215 transitions. [2021-08-06 13:58:15,205 INFO L78 Accepts]: Start accepts. Automaton has 3102 states and 8215 transitions. Word has length 94 [2021-08-06 13:58:15,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:58:15,205 INFO L470 AbstractCegarLoop]: Abstraction has 3102 states and 8215 transitions. [2021-08-06 13:58:15,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:58:15,206 INFO L276 IsEmpty]: Start isEmpty. Operand 3102 states and 8215 transitions. [2021-08-06 13:58:15,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:58:15,209 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:58:15,209 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:58:15,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-08-06 13:58:15,209 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:58:15,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:58:15,209 INFO L82 PathProgramCache]: Analyzing trace with hash 1472108635, now seen corresponding path program 78 times [2021-08-06 13:58:15,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:58:15,210 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915760293] [2021-08-06 13:58:15,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:58:15,210 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:58:15,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:58:15,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:58:15,890 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:58:15,891 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915760293] [2021-08-06 13:58:15,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915760293] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:58:15,891 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:58:15,891 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:58:15,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118582065] [2021-08-06 13:58:15,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:58:15,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:58:15,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:58:15,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:58:15,892 INFO L87 Difference]: Start difference. First operand 3102 states and 8215 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:58:19,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:58:19,159 INFO L93 Difference]: Finished difference Result 8146 states and 20607 transitions. [2021-08-06 13:58:19,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-06 13:58:19,159 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:58:19,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:58:19,168 INFO L225 Difference]: With dead ends: 8146 [2021-08-06 13:58:19,169 INFO L226 Difference]: Without dead ends: 8146 [2021-08-06 13:58:19,169 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 2836.5ms TimeCoverageRelationStatistics Valid=539, Invalid=1531, Unknown=0, NotChecked=0, Total=2070 [2021-08-06 13:58:19,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8146 states. [2021-08-06 13:58:19,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8146 to 3104. [2021-08-06 13:58:19,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3104 states, 3102 states have (on average 2.6499032882011604) internal successors, (8220), 3103 states have internal predecessors, (8220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:58:19,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3104 states to 3104 states and 8220 transitions. [2021-08-06 13:58:19,225 INFO L78 Accepts]: Start accepts. Automaton has 3104 states and 8220 transitions. Word has length 94 [2021-08-06 13:58:19,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:58:19,225 INFO L470 AbstractCegarLoop]: Abstraction has 3104 states and 8220 transitions. [2021-08-06 13:58:19,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:58:19,225 INFO L276 IsEmpty]: Start isEmpty. Operand 3104 states and 8220 transitions. [2021-08-06 13:58:19,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:58:19,228 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:58:19,228 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:58:19,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2021-08-06 13:58:19,228 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:58:19,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:58:19,229 INFO L82 PathProgramCache]: Analyzing trace with hash 2043927209, now seen corresponding path program 79 times [2021-08-06 13:58:19,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:58:19,229 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84023692] [2021-08-06 13:58:19,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:58:19,229 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:58:19,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:58:19,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:58:19,939 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:58:19,939 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84023692] [2021-08-06 13:58:19,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84023692] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:58:19,939 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:58:19,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:58:19,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573897317] [2021-08-06 13:58:19,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:58:19,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:58:19,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:58:19,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:58:19,940 INFO L87 Difference]: Start difference. First operand 3104 states and 8220 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:58:23,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:58:23,401 INFO L93 Difference]: Finished difference Result 8124 states and 20561 transitions. [2021-08-06 13:58:23,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-08-06 13:58:23,402 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:58:23,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:58:23,411 INFO L225 Difference]: With dead ends: 8124 [2021-08-06 13:58:23,411 INFO L226 Difference]: Without dead ends: 8124 [2021-08-06 13:58:23,412 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 3071.6ms TimeCoverageRelationStatistics Valid=572, Invalid=1590, Unknown=0, NotChecked=0, Total=2162 [2021-08-06 13:58:23,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8124 states. [2021-08-06 13:58:23,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8124 to 3102. [2021-08-06 13:58:23,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3102 states, 3100 states have (on average 2.65) internal successors, (8215), 3101 states have internal predecessors, (8215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:58:23,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3102 states to 3102 states and 8215 transitions. [2021-08-06 13:58:23,475 INFO L78 Accepts]: Start accepts. Automaton has 3102 states and 8215 transitions. Word has length 94 [2021-08-06 13:58:23,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:58:23,475 INFO L470 AbstractCegarLoop]: Abstraction has 3102 states and 8215 transitions. [2021-08-06 13:58:23,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:58:23,476 INFO L276 IsEmpty]: Start isEmpty. Operand 3102 states and 8215 transitions. [2021-08-06 13:58:23,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:58:23,478 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:58:23,479 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:58:23,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2021-08-06 13:58:23,479 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:58:23,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:58:23,479 INFO L82 PathProgramCache]: Analyzing trace with hash -836266533, now seen corresponding path program 80 times [2021-08-06 13:58:23,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:58:23,479 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524475504] [2021-08-06 13:58:23,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:58:23,479 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:58:23,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:58:24,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:58:24,139 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:58:24,139 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524475504] [2021-08-06 13:58:24,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524475504] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:58:24,139 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:58:24,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:58:24,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991927658] [2021-08-06 13:58:24,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:58:24,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:58:24,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:58:24,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:58:24,140 INFO L87 Difference]: Start difference. First operand 3102 states and 8215 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:58:28,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:58:28,794 INFO L93 Difference]: Finished difference Result 9606 states and 24274 transitions. [2021-08-06 13:58:28,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-08-06 13:58:28,794 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:58:28,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:58:28,804 INFO L225 Difference]: With dead ends: 9606 [2021-08-06 13:58:28,804 INFO L226 Difference]: Without dead ends: 9606 [2021-08-06 13:58:28,804 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 4081.6ms TimeCoverageRelationStatistics Valid=773, Invalid=1879, Unknown=0, NotChecked=0, Total=2652 [2021-08-06 13:58:28,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9606 states. [2021-08-06 13:58:28,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9606 to 3114. [2021-08-06 13:58:28,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3114 states, 3112 states have (on average 2.651349614395887) internal successors, (8251), 3113 states have internal predecessors, (8251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:58:28,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3114 states to 3114 states and 8251 transitions. [2021-08-06 13:58:28,857 INFO L78 Accepts]: Start accepts. Automaton has 3114 states and 8251 transitions. Word has length 94 [2021-08-06 13:58:28,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:58:28,857 INFO L470 AbstractCegarLoop]: Abstraction has 3114 states and 8251 transitions. [2021-08-06 13:58:28,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:58:28,858 INFO L276 IsEmpty]: Start isEmpty. Operand 3114 states and 8251 transitions. [2021-08-06 13:58:28,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:58:28,861 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:58:28,861 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:58:28,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2021-08-06 13:58:28,861 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:58:28,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:58:28,861 INFO L82 PathProgramCache]: Analyzing trace with hash -1438267341, now seen corresponding path program 81 times [2021-08-06 13:58:28,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:58:28,861 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176231199] [2021-08-06 13:58:28,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:58:28,861 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:58:28,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:58:29,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:58:29,523 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:58:29,523 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176231199] [2021-08-06 13:58:29,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176231199] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:58:29,523 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:58:29,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:58:29,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733299520] [2021-08-06 13:58:29,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:58:29,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:58:29,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:58:29,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:58:29,524 INFO L87 Difference]: Start difference. First operand 3114 states and 8251 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:58:33,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:58:33,109 INFO L93 Difference]: Finished difference Result 8761 states and 22174 transitions. [2021-08-06 13:58:33,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-08-06 13:58:33,110 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:58:33,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:58:33,120 INFO L225 Difference]: With dead ends: 8761 [2021-08-06 13:58:33,121 INFO L226 Difference]: Without dead ends: 8761 [2021-08-06 13:58:33,121 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 3079.3ms TimeCoverageRelationStatistics Valid=587, Invalid=1575, Unknown=0, NotChecked=0, Total=2162 [2021-08-06 13:58:33,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8761 states. [2021-08-06 13:58:33,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8761 to 3090. [2021-08-06 13:58:33,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3090 states, 3088 states have (on average 2.648639896373057) internal successors, (8179), 3089 states have internal predecessors, (8179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:58:33,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3090 states to 3090 states and 8179 transitions. [2021-08-06 13:58:33,196 INFO L78 Accepts]: Start accepts. Automaton has 3090 states and 8179 transitions. Word has length 94 [2021-08-06 13:58:33,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:58:33,197 INFO L470 AbstractCegarLoop]: Abstraction has 3090 states and 8179 transitions. [2021-08-06 13:58:33,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:58:33,197 INFO L276 IsEmpty]: Start isEmpty. Operand 3090 states and 8179 transitions. [2021-08-06 13:58:33,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:58:33,200 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:58:33,200 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:58:33,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2021-08-06 13:58:33,200 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:58:33,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:58:33,200 INFO L82 PathProgramCache]: Analyzing trace with hash -1398452157, now seen corresponding path program 82 times [2021-08-06 13:58:33,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:58:33,200 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764435401] [2021-08-06 13:58:33,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:58:33,201 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:58:33,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:58:33,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:58:33,856 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:58:33,856 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764435401] [2021-08-06 13:58:33,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764435401] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:58:33,856 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:58:33,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:58:33,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596979901] [2021-08-06 13:58:33,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:58:33,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:58:33,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:58:33,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:58:33,857 INFO L87 Difference]: Start difference. First operand 3090 states and 8179 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:58:37,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:58:37,042 INFO L93 Difference]: Finished difference Result 8245 states and 20859 transitions. [2021-08-06 13:58:37,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-06 13:58:37,042 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:58:37,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:58:37,051 INFO L225 Difference]: With dead ends: 8245 [2021-08-06 13:58:37,051 INFO L226 Difference]: Without dead ends: 8245 [2021-08-06 13:58:37,052 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 2730.8ms TimeCoverageRelationStatistics Valid=524, Invalid=1546, Unknown=0, NotChecked=0, Total=2070 [2021-08-06 13:58:37,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8245 states. [2021-08-06 13:58:37,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8245 to 3096. [2021-08-06 13:58:37,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3096 states, 3094 states have (on average 2.6483516483516483) internal successors, (8194), 3095 states have internal predecessors, (8194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:58:37,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3096 states to 3096 states and 8194 transitions. [2021-08-06 13:58:37,105 INFO L78 Accepts]: Start accepts. Automaton has 3096 states and 8194 transitions. Word has length 94 [2021-08-06 13:58:37,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:58:37,105 INFO L470 AbstractCegarLoop]: Abstraction has 3096 states and 8194 transitions. [2021-08-06 13:58:37,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:58:37,105 INFO L276 IsEmpty]: Start isEmpty. Operand 3096 states and 8194 transitions. [2021-08-06 13:58:37,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:58:37,108 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:58:37,109 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:58:37,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2021-08-06 13:58:37,109 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:58:37,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:58:37,109 INFO L82 PathProgramCache]: Analyzing trace with hash -826633583, now seen corresponding path program 83 times [2021-08-06 13:58:37,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:58:37,109 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894795657] [2021-08-06 13:58:37,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:58:37,109 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:58:37,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:58:37,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:58:37,807 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:58:37,807 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894795657] [2021-08-06 13:58:37,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894795657] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:58:37,807 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:58:37,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:58:37,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082515898] [2021-08-06 13:58:37,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:58:37,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:58:37,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:58:37,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:58:37,808 INFO L87 Difference]: Start difference. First operand 3096 states and 8194 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:58:41,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:58:41,191 INFO L93 Difference]: Finished difference Result 8474 states and 21306 transitions. [2021-08-06 13:58:41,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-08-06 13:58:41,191 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:58:41,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:58:41,201 INFO L225 Difference]: With dead ends: 8474 [2021-08-06 13:58:41,201 INFO L226 Difference]: Without dead ends: 8474 [2021-08-06 13:58:41,201 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 2884.6ms TimeCoverageRelationStatistics Valid=557, Invalid=1605, Unknown=0, NotChecked=0, Total=2162 [2021-08-06 13:58:41,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8474 states. [2021-08-06 13:58:41,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8474 to 3094. [2021-08-06 13:58:41,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3094 states, 3092 states have (on average 2.6484476067270375) internal successors, (8189), 3093 states have internal predecessors, (8189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:58:41,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3094 states to 3094 states and 8189 transitions. [2021-08-06 13:58:41,253 INFO L78 Accepts]: Start accepts. Automaton has 3094 states and 8189 transitions. Word has length 94 [2021-08-06 13:58:41,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:58:41,253 INFO L470 AbstractCegarLoop]: Abstraction has 3094 states and 8189 transitions. [2021-08-06 13:58:41,254 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:58:41,254 INFO L276 IsEmpty]: Start isEmpty. Operand 3094 states and 8189 transitions. [2021-08-06 13:58:41,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:58:41,257 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:58:41,257 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:58:41,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2021-08-06 13:58:41,257 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:58:41,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:58:41,257 INFO L82 PathProgramCache]: Analyzing trace with hash -1387278969, now seen corresponding path program 84 times [2021-08-06 13:58:41,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:58:41,257 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670370455] [2021-08-06 13:58:41,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:58:41,258 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:58:41,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:58:41,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:58:41,950 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:58:41,950 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670370455] [2021-08-06 13:58:41,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670370455] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:58:41,950 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:58:41,950 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:58:41,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713918026] [2021-08-06 13:58:41,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:58:41,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:58:41,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:58:41,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:58:41,951 INFO L87 Difference]: Start difference. First operand 3094 states and 8189 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:58:45,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:58:45,460 INFO L93 Difference]: Finished difference Result 8255 states and 20884 transitions. [2021-08-06 13:58:45,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-08-06 13:58:45,461 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:58:45,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:58:45,470 INFO L225 Difference]: With dead ends: 8255 [2021-08-06 13:58:45,470 INFO L226 Difference]: Without dead ends: 8255 [2021-08-06 13:58:45,470 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 3047.4ms TimeCoverageRelationStatistics Valid=589, Invalid=1667, Unknown=0, NotChecked=0, Total=2256 [2021-08-06 13:58:45,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8255 states. [2021-08-06 13:58:45,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8255 to 3090. [2021-08-06 13:58:45,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3090 states, 3088 states have (on average 2.648639896373057) internal successors, (8179), 3089 states have internal predecessors, (8179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:58:45,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3090 states to 3090 states and 8179 transitions. [2021-08-06 13:58:45,519 INFO L78 Accepts]: Start accepts. Automaton has 3090 states and 8179 transitions. Word has length 94 [2021-08-06 13:58:45,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:58:45,519 INFO L470 AbstractCegarLoop]: Abstraction has 3090 states and 8179 transitions. [2021-08-06 13:58:45,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:58:45,519 INFO L276 IsEmpty]: Start isEmpty. Operand 3090 states and 8179 transitions. [2021-08-06 13:58:45,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:58:45,522 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:58:45,522 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:58:45,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2021-08-06 13:58:45,522 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:58:45,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:58:45,523 INFO L82 PathProgramCache]: Analyzing trace with hash 14291321, now seen corresponding path program 85 times [2021-08-06 13:58:45,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:58:45,523 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358539410] [2021-08-06 13:58:45,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:58:45,523 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:58:45,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:58:46,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:58:46,209 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:58:46,209 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358539410] [2021-08-06 13:58:46,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358539410] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:58:46,210 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:58:46,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:58:46,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583016495] [2021-08-06 13:58:46,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:58:46,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:58:46,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:58:46,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:58:46,211 INFO L87 Difference]: Start difference. First operand 3090 states and 8179 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:58:51,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:58:51,075 INFO L93 Difference]: Finished difference Result 9940 states and 25154 transitions. [2021-08-06 13:58:51,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-08-06 13:58:51,075 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:58:51,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:58:51,086 INFO L225 Difference]: With dead ends: 9940 [2021-08-06 13:58:51,086 INFO L226 Difference]: Without dead ends: 9940 [2021-08-06 13:58:51,086 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 4269.9ms TimeCoverageRelationStatistics Valid=828, Invalid=2034, Unknown=0, NotChecked=0, Total=2862 [2021-08-06 13:58:51,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9940 states. [2021-08-06 13:58:51,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9940 to 3126. [2021-08-06 13:58:51,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3126 states, 3124 states have (on average 2.6526888604353394) internal successors, (8287), 3125 states have internal predecessors, (8287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:58:51,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3126 states to 3126 states and 8287 transitions. [2021-08-06 13:58:51,143 INFO L78 Accepts]: Start accepts. Automaton has 3126 states and 8287 transitions. Word has length 94 [2021-08-06 13:58:51,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:58:51,143 INFO L470 AbstractCegarLoop]: Abstraction has 3126 states and 8287 transitions. [2021-08-06 13:58:51,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:58:51,143 INFO L276 IsEmpty]: Start isEmpty. Operand 3126 states and 8287 transitions. [2021-08-06 13:58:51,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:58:51,146 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:58:51,146 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:58:51,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2021-08-06 13:58:51,147 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:58:51,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:58:51,147 INFO L82 PathProgramCache]: Analyzing trace with hash -587709487, now seen corresponding path program 86 times [2021-08-06 13:58:51,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:58:51,147 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264012933] [2021-08-06 13:58:51,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:58:51,147 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:58:51,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:58:51,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:58:51,862 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:58:51,862 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264012933] [2021-08-06 13:58:51,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264012933] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:58:51,862 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:58:51,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:58:51,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383343225] [2021-08-06 13:58:51,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:58:51,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:58:51,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:58:51,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:58:51,863 INFO L87 Difference]: Start difference. First operand 3126 states and 8287 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:58:56,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:58:56,688 INFO L93 Difference]: Finished difference Result 10149 states and 25509 transitions. [2021-08-06 13:58:56,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-08-06 13:58:56,689 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:58:56,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:58:56,698 INFO L225 Difference]: With dead ends: 10149 [2021-08-06 13:58:56,699 INFO L226 Difference]: Without dead ends: 10149 [2021-08-06 13:58:56,699 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 4188.9ms TimeCoverageRelationStatistics Valid=812, Invalid=2050, Unknown=0, NotChecked=0, Total=2862 [2021-08-06 13:58:56,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10149 states. [2021-08-06 13:58:56,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10149 to 3114. [2021-08-06 13:58:56,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3114 states, 3112 states have (on average 2.651349614395887) internal successors, (8251), 3113 states have internal predecessors, (8251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:58:56,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3114 states to 3114 states and 8251 transitions. [2021-08-06 13:58:56,751 INFO L78 Accepts]: Start accepts. Automaton has 3114 states and 8251 transitions. Word has length 94 [2021-08-06 13:58:56,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:58:56,752 INFO L470 AbstractCegarLoop]: Abstraction has 3114 states and 8251 transitions. [2021-08-06 13:58:56,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:58:56,752 INFO L276 IsEmpty]: Start isEmpty. Operand 3114 states and 8251 transitions. [2021-08-06 13:58:56,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:58:56,755 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:58:56,755 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:58:56,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2021-08-06 13:58:56,755 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:58:56,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:58:56,755 INFO L82 PathProgramCache]: Analyzing trace with hash -1961127619, now seen corresponding path program 87 times [2021-08-06 13:58:56,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:58:56,755 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183366470] [2021-08-06 13:58:56,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:58:56,756 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:58:56,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:58:57,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:58:57,424 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:58:57,425 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183366470] [2021-08-06 13:58:57,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183366470] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:58:57,425 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:58:57,425 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:58:57,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133125310] [2021-08-06 13:58:57,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:58:57,425 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:58:57,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:58:57,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:58:57,426 INFO L87 Difference]: Start difference. First operand 3114 states and 8251 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:59:01,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:59:01,064 INFO L93 Difference]: Finished difference Result 9014 states and 22832 transitions. [2021-08-06 13:59:01,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-08-06 13:59:01,064 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:59:01,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:59:01,074 INFO L225 Difference]: With dead ends: 9014 [2021-08-06 13:59:01,074 INFO L226 Difference]: Without dead ends: 9014 [2021-08-06 13:59:01,074 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 3123.8ms TimeCoverageRelationStatistics Valid=604, Invalid=1652, Unknown=0, NotChecked=0, Total=2256 [2021-08-06 13:59:01,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9014 states. [2021-08-06 13:59:01,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9014 to 3066. [2021-08-06 13:59:01,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3066 states, 3064 states have (on average 2.64588772845953) internal successors, (8107), 3065 states have internal predecessors, (8107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:59:01,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3066 states to 3066 states and 8107 transitions. [2021-08-06 13:59:01,139 INFO L78 Accepts]: Start accepts. Automaton has 3066 states and 8107 transitions. Word has length 94 [2021-08-06 13:59:01,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:59:01,140 INFO L470 AbstractCegarLoop]: Abstraction has 3066 states and 8107 transitions. [2021-08-06 13:59:01,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:59:01,140 INFO L276 IsEmpty]: Start isEmpty. Operand 3066 states and 8107 transitions. [2021-08-06 13:59:01,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:59:01,142 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:59:01,142 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:59:01,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2021-08-06 13:59:01,143 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:59:01,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:59:01,143 INFO L82 PathProgramCache]: Analyzing trace with hash 519842243, now seen corresponding path program 88 times [2021-08-06 13:59:01,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:59:01,143 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167158788] [2021-08-06 13:59:01,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:59:01,143 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:59:01,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:59:01,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:59:01,807 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:59:01,807 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167158788] [2021-08-06 13:59:01,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167158788] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:59:01,808 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:59:01,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:59:01,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134999483] [2021-08-06 13:59:01,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:59:01,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:59:01,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:59:01,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:59:01,808 INFO L87 Difference]: Start difference. First operand 3066 states and 8107 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:59:04,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:59:04,835 INFO L93 Difference]: Finished difference Result 7324 states and 18538 transitions. [2021-08-06 13:59:04,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-06 13:59:04,836 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:59:04,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:59:04,844 INFO L225 Difference]: With dead ends: 7324 [2021-08-06 13:59:04,844 INFO L226 Difference]: Without dead ends: 7324 [2021-08-06 13:59:04,844 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 2587.0ms TimeCoverageRelationStatistics Valid=509, Invalid=1561, Unknown=0, NotChecked=0, Total=2070 [2021-08-06 13:59:04,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7324 states. [2021-08-06 13:59:04,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7324 to 3074. [2021-08-06 13:59:04,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3074 states, 3072 states have (on average 2.6455078125) internal successors, (8127), 3073 states have internal predecessors, (8127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:59:04,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3074 states to 3074 states and 8127 transitions. [2021-08-06 13:59:04,891 INFO L78 Accepts]: Start accepts. Automaton has 3074 states and 8127 transitions. Word has length 94 [2021-08-06 13:59:04,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:59:04,891 INFO L470 AbstractCegarLoop]: Abstraction has 3074 states and 8127 transitions. [2021-08-06 13:59:04,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:59:04,891 INFO L276 IsEmpty]: Start isEmpty. Operand 3074 states and 8127 transitions. [2021-08-06 13:59:04,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:59:04,894 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:59:04,894 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:59:04,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2021-08-06 13:59:04,894 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:59:04,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:59:04,894 INFO L82 PathProgramCache]: Analyzing trace with hash 1091660817, now seen corresponding path program 89 times [2021-08-06 13:59:04,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:59:04,894 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914320067] [2021-08-06 13:59:04,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:59:04,894 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:59:04,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:59:05,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:59:05,576 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:59:05,576 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914320067] [2021-08-06 13:59:05,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914320067] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:59:05,576 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:59:05,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:59:05,576 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963034347] [2021-08-06 13:59:05,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:59:05,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:59:05,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:59:05,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:59:05,577 INFO L87 Difference]: Start difference. First operand 3074 states and 8127 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:59:08,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:59:08,916 INFO L93 Difference]: Finished difference Result 7553 states and 18985 transitions. [2021-08-06 13:59:08,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-08-06 13:59:08,916 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:59:08,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:59:08,926 INFO L225 Difference]: With dead ends: 7553 [2021-08-06 13:59:08,926 INFO L226 Difference]: Without dead ends: 7553 [2021-08-06 13:59:08,926 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 2838.5ms TimeCoverageRelationStatistics Valid=542, Invalid=1620, Unknown=0, NotChecked=0, Total=2162 [2021-08-06 13:59:08,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7553 states. [2021-08-06 13:59:08,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7553 to 3072. [2021-08-06 13:59:08,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3072 states, 3070 states have (on average 2.6456026058631923) internal successors, (8122), 3071 states have internal predecessors, (8122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:59:08,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3072 states to 3072 states and 8122 transitions. [2021-08-06 13:59:08,977 INFO L78 Accepts]: Start accepts. Automaton has 3072 states and 8122 transitions. Word has length 94 [2021-08-06 13:59:08,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:59:08,978 INFO L470 AbstractCegarLoop]: Abstraction has 3072 states and 8122 transitions. [2021-08-06 13:59:08,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:59:08,978 INFO L276 IsEmpty]: Start isEmpty. Operand 3072 states and 8122 transitions. [2021-08-06 13:59:08,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:59:08,980 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:59:08,980 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:59:08,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2021-08-06 13:59:08,981 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:59:08,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:59:08,981 INFO L82 PathProgramCache]: Analyzing trace with hash 531015431, now seen corresponding path program 90 times [2021-08-06 13:59:08,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:59:08,981 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122200197] [2021-08-06 13:59:08,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:59:08,981 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:59:08,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:59:09,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:59:09,656 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:59:09,656 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122200197] [2021-08-06 13:59:09,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122200197] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:59:09,656 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:59:09,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:59:09,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923712681] [2021-08-06 13:59:09,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:59:09,657 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:59:09,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:59:09,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:59:09,657 INFO L87 Difference]: Start difference. First operand 3072 states and 8122 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:59:13,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:59:13,110 INFO L93 Difference]: Finished difference Result 7604 states and 19099 transitions. [2021-08-06 13:59:13,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-08-06 13:59:13,110 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:59:13,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:59:13,118 INFO L225 Difference]: With dead ends: 7604 [2021-08-06 13:59:13,118 INFO L226 Difference]: Without dead ends: 7604 [2021-08-06 13:59:13,118 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 2936.9ms TimeCoverageRelationStatistics Valid=574, Invalid=1682, Unknown=0, NotChecked=0, Total=2256 [2021-08-06 13:59:13,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7604 states. [2021-08-06 13:59:13,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7604 to 3068. [2021-08-06 13:59:13,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3068 states, 3066 states have (on average 2.6457925636007826) internal successors, (8112), 3067 states have internal predecessors, (8112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:59:13,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3068 states to 3068 states and 8112 transitions. [2021-08-06 13:59:13,162 INFO L78 Accepts]: Start accepts. Automaton has 3068 states and 8112 transitions. Word has length 94 [2021-08-06 13:59:13,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:59:13,162 INFO L470 AbstractCegarLoop]: Abstraction has 3068 states and 8112 transitions. [2021-08-06 13:59:13,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:59:13,162 INFO L276 IsEmpty]: Start isEmpty. Operand 3068 states and 8112 transitions. [2021-08-06 13:59:13,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:59:13,165 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:59:13,165 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:59:13,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2021-08-06 13:59:13,165 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:59:13,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:59:13,165 INFO L82 PathProgramCache]: Analyzing trace with hash 8491049, now seen corresponding path program 91 times [2021-08-06 13:59:13,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:59:13,165 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668728077] [2021-08-06 13:59:13,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:59:13,165 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:59:13,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:59:13,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:59:13,831 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:59:13,831 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668728077] [2021-08-06 13:59:13,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668728077] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:59:13,831 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:59:13,831 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:59:13,831 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068100216] [2021-08-06 13:59:13,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:59:13,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:59:13,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:59:13,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:59:13,832 INFO L87 Difference]: Start difference. First operand 3068 states and 8112 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:59:17,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:59:17,322 INFO L93 Difference]: Finished difference Result 7347 states and 18591 transitions. [2021-08-06 13:59:17,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-06 13:59:17,323 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:59:17,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:59:17,331 INFO L225 Difference]: With dead ends: 7347 [2021-08-06 13:59:17,331 INFO L226 Difference]: Without dead ends: 7347 [2021-08-06 13:59:17,331 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 3029.9ms TimeCoverageRelationStatistics Valid=605, Invalid=1747, Unknown=0, NotChecked=0, Total=2352 [2021-08-06 13:59:17,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7347 states. [2021-08-06 13:59:17,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7347 to 3066. [2021-08-06 13:59:17,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3066 states, 3064 states have (on average 2.64588772845953) internal successors, (8107), 3065 states have internal predecessors, (8107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:59:17,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3066 states to 3066 states and 8107 transitions. [2021-08-06 13:59:17,377 INFO L78 Accepts]: Start accepts. Automaton has 3066 states and 8107 transitions. Word has length 94 [2021-08-06 13:59:17,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:59:17,377 INFO L470 AbstractCegarLoop]: Abstraction has 3066 states and 8107 transitions. [2021-08-06 13:59:17,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:59:17,377 INFO L276 IsEmpty]: Start isEmpty. Operand 3066 states and 8107 transitions. [2021-08-06 13:59:17,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:59:17,380 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:59:17,380 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:59:17,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2021-08-06 13:59:17,380 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:59:17,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:59:17,380 INFO L82 PathProgramCache]: Analyzing trace with hash -389592007, now seen corresponding path program 92 times [2021-08-06 13:59:17,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:59:17,380 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013922797] [2021-08-06 13:59:17,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:59:17,380 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:59:17,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:59:18,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:59:18,060 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:59:18,060 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013922797] [2021-08-06 13:59:18,060 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013922797] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:59:18,060 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:59:18,060 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:59:18,060 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109243777] [2021-08-06 13:59:18,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:59:18,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:59:18,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:59:18,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:59:18,061 INFO L87 Difference]: Start difference. First operand 3066 states and 8107 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:59:23,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:59:23,227 INFO L93 Difference]: Finished difference Result 7890 states and 20004 transitions. [2021-08-06 13:59:23,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-08-06 13:59:23,228 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:59:23,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:59:23,235 INFO L225 Difference]: With dead ends: 7890 [2021-08-06 13:59:23,235 INFO L226 Difference]: Without dead ends: 7890 [2021-08-06 13:59:23,236 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 328 ImplicationChecksByTransitivity, 4509.6ms TimeCoverageRelationStatistics Valid=882, Invalid=2198, Unknown=0, NotChecked=0, Total=3080 [2021-08-06 13:59:23,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7890 states. [2021-08-06 13:59:23,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7890 to 3114. [2021-08-06 13:59:23,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3114 states, 3112 states have (on average 2.651349614395887) internal successors, (8251), 3113 states have internal predecessors, (8251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:59:23,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3114 states to 3114 states and 8251 transitions. [2021-08-06 13:59:23,281 INFO L78 Accepts]: Start accepts. Automaton has 3114 states and 8251 transitions. Word has length 94 [2021-08-06 13:59:23,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:59:23,281 INFO L470 AbstractCegarLoop]: Abstraction has 3114 states and 8251 transitions. [2021-08-06 13:59:23,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:59:23,281 INFO L276 IsEmpty]: Start isEmpty. Operand 3114 states and 8251 transitions. [2021-08-06 13:59:23,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:59:23,284 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:59:23,284 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:59:23,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2021-08-06 13:59:23,285 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:59:23,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:59:23,285 INFO L82 PathProgramCache]: Analyzing trace with hash -991592815, now seen corresponding path program 93 times [2021-08-06 13:59:23,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:59:23,285 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951842234] [2021-08-06 13:59:23,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:59:23,285 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:59:23,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:59:23,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:59:23,948 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:59:23,948 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951842234] [2021-08-06 13:59:23,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951842234] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:59:23,948 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:59:23,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:59:23,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083136350] [2021-08-06 13:59:23,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:59:23,948 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:59:23,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:59:23,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:59:23,949 INFO L87 Difference]: Start difference. First operand 3114 states and 8251 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:59:29,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:59:29,133 INFO L93 Difference]: Finished difference Result 8099 states and 20359 transitions. [2021-08-06 13:59:29,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-08-06 13:59:29,134 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:59:29,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:59:29,143 INFO L225 Difference]: With dead ends: 8099 [2021-08-06 13:59:29,143 INFO L226 Difference]: Without dead ends: 8099 [2021-08-06 13:59:29,144 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 4349.6ms TimeCoverageRelationStatistics Valid=865, Invalid=2215, Unknown=0, NotChecked=0, Total=3080 [2021-08-06 13:59:29,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8099 states. [2021-08-06 13:59:29,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8099 to 3102. [2021-08-06 13:59:29,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3102 states, 3100 states have (on average 2.65) internal successors, (8215), 3101 states have internal predecessors, (8215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:59:29,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3102 states to 3102 states and 8215 transitions. [2021-08-06 13:59:29,203 INFO L78 Accepts]: Start accepts. Automaton has 3102 states and 8215 transitions. Word has length 94 [2021-08-06 13:59:29,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:59:29,204 INFO L470 AbstractCegarLoop]: Abstraction has 3102 states and 8215 transitions. [2021-08-06 13:59:29,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:59:29,204 INFO L276 IsEmpty]: Start isEmpty. Operand 3102 states and 8215 transitions. [2021-08-06 13:59:29,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:59:29,207 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:59:29,207 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:59:29,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2021-08-06 13:59:29,207 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:59:29,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:59:29,207 INFO L82 PathProgramCache]: Analyzing trace with hash 1929956349, now seen corresponding path program 94 times [2021-08-06 13:59:29,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:59:29,207 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623241463] [2021-08-06 13:59:29,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:59:29,207 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:59:29,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:59:29,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:59:29,867 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:59:29,867 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623241463] [2021-08-06 13:59:29,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623241463] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:59:29,867 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:59:29,867 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:59:29,867 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568775316] [2021-08-06 13:59:29,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:59:29,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:59:29,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:59:29,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:59:29,868 INFO L87 Difference]: Start difference. First operand 3102 states and 8215 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:59:34,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:59:34,592 INFO L93 Difference]: Finished difference Result 8128 states and 20427 transitions. [2021-08-06 13:59:34,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-08-06 13:59:34,592 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:59:34,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:59:34,600 INFO L225 Difference]: With dead ends: 8128 [2021-08-06 13:59:34,600 INFO L226 Difference]: Without dead ends: 8128 [2021-08-06 13:59:34,600 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 4083.4ms TimeCoverageRelationStatistics Valid=817, Invalid=2153, Unknown=0, NotChecked=0, Total=2970 [2021-08-06 13:59:34,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8128 states. [2021-08-06 13:59:34,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8128 to 3078. [2021-08-06 13:59:34,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3078 states, 3076 states have (on average 2.6472691807542263) internal successors, (8143), 3077 states have internal predecessors, (8143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:59:34,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3078 states to 3078 states and 8143 transitions. [2021-08-06 13:59:34,646 INFO L78 Accepts]: Start accepts. Automaton has 3078 states and 8143 transitions. Word has length 94 [2021-08-06 13:59:34,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:59:34,646 INFO L470 AbstractCegarLoop]: Abstraction has 3078 states and 8143 transitions. [2021-08-06 13:59:34,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:59:34,646 INFO L276 IsEmpty]: Start isEmpty. Operand 3078 states and 8143 transitions. [2021-08-06 13:59:34,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:59:34,650 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:59:34,650 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:59:34,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2021-08-06 13:59:34,650 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:59:34,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:59:34,651 INFO L82 PathProgramCache]: Analyzing trace with hash -1704247713, now seen corresponding path program 95 times [2021-08-06 13:59:34,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:59:34,651 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568627200] [2021-08-06 13:59:34,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:59:34,651 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:59:34,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:59:35,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:59:35,307 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:59:35,307 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568627200] [2021-08-06 13:59:35,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568627200] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:59:35,307 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:59:35,307 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:59:35,307 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192880911] [2021-08-06 13:59:35,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:59:35,308 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:59:35,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:59:35,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:59:35,308 INFO L87 Difference]: Start difference. First operand 3078 states and 8143 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:59:39,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:59:39,090 INFO L93 Difference]: Finished difference Result 6784 states and 17193 transitions. [2021-08-06 13:59:39,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-06 13:59:39,091 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:59:39,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:59:39,099 INFO L225 Difference]: With dead ends: 6784 [2021-08-06 13:59:39,099 INFO L226 Difference]: Without dead ends: 6784 [2021-08-06 13:59:39,099 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 3177.3ms TimeCoverageRelationStatistics Valid=620, Invalid=1732, Unknown=0, NotChecked=0, Total=2352 [2021-08-06 13:59:39,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6784 states. [2021-08-06 13:59:39,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6784 to 3054. [2021-08-06 13:59:39,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3054 states, 3052 states have (on average 2.6444954128440368) internal successors, (8071), 3053 states have internal predecessors, (8071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:59:39,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3054 states to 3054 states and 8071 transitions. [2021-08-06 13:59:39,157 INFO L78 Accepts]: Start accepts. Automaton has 3054 states and 8071 transitions. Word has length 94 [2021-08-06 13:59:39,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:59:39,157 INFO L470 AbstractCegarLoop]: Abstraction has 3054 states and 8071 transitions. [2021-08-06 13:59:39,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:59:39,157 INFO L276 IsEmpty]: Start isEmpty. Operand 3054 states and 8071 transitions. [2021-08-06 13:59:39,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:59:39,160 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:59:39,160 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:59:39,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2021-08-06 13:59:39,160 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:59:39,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:59:39,160 INFO L82 PathProgramCache]: Analyzing trace with hash 1302921281, now seen corresponding path program 96 times [2021-08-06 13:59:39,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:59:39,160 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787669407] [2021-08-06 13:59:39,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:59:39,160 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:59:39,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:59:39,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:59:39,833 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:59:39,833 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787669407] [2021-08-06 13:59:39,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787669407] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:59:39,834 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:59:39,834 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:59:39,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146859447] [2021-08-06 13:59:39,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:59:39,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:59:39,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:59:39,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:59:39,835 INFO L87 Difference]: Start difference. First operand 3054 states and 8071 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:59:42,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:59:42,664 INFO L93 Difference]: Finished difference Result 5800 states and 14525 transitions. [2021-08-06 13:59:42,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-06 13:59:42,665 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:59:42,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:59:42,671 INFO L225 Difference]: With dead ends: 5800 [2021-08-06 13:59:42,671 INFO L226 Difference]: Without dead ends: 5800 [2021-08-06 13:59:42,671 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 2450.8ms TimeCoverageRelationStatistics Valid=494, Invalid=1576, Unknown=0, NotChecked=0, Total=2070 [2021-08-06 13:59:42,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5800 states. [2021-08-06 13:59:42,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5800 to 3070. [2021-08-06 13:59:42,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3070 states, 3068 states have (on average 2.64374185136897) internal successors, (8111), 3069 states have internal predecessors, (8111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:59:42,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3070 states to 3070 states and 8111 transitions. [2021-08-06 13:59:42,716 INFO L78 Accepts]: Start accepts. Automaton has 3070 states and 8111 transitions. Word has length 94 [2021-08-06 13:59:42,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:59:42,716 INFO L470 AbstractCegarLoop]: Abstraction has 3070 states and 8111 transitions. [2021-08-06 13:59:42,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:59:42,716 INFO L276 IsEmpty]: Start isEmpty. Operand 3070 states and 8111 transitions. [2021-08-06 13:59:42,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:59:42,719 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:59:42,719 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:59:42,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2021-08-06 13:59:42,719 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:59:42,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:59:42,719 INFO L82 PathProgramCache]: Analyzing trace with hash 1243891409, now seen corresponding path program 97 times [2021-08-06 13:59:42,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:59:42,720 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979162299] [2021-08-06 13:59:42,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:59:42,720 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:59:42,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:59:43,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:59:43,383 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:59:43,383 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979162299] [2021-08-06 13:59:43,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979162299] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:59:43,383 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:59:43,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:59:43,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938488027] [2021-08-06 13:59:43,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:59:43,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:59:43,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:59:43,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:59:43,384 INFO L87 Difference]: Start difference. First operand 3070 states and 8111 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:59:46,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:59:46,252 INFO L93 Difference]: Finished difference Result 6207 states and 15334 transitions. [2021-08-06 13:59:46,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-06 13:59:46,252 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:59:46,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:59:46,259 INFO L225 Difference]: With dead ends: 6207 [2021-08-06 13:59:46,259 INFO L226 Difference]: Without dead ends: 6207 [2021-08-06 13:59:46,259 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 2451.8ms TimeCoverageRelationStatistics Valid=494, Invalid=1576, Unknown=0, NotChecked=0, Total=2070 [2021-08-06 13:59:46,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6207 states. [2021-08-06 13:59:46,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6207 to 3072. [2021-08-06 13:59:46,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3072 states, 3070 states have (on average 2.6436482084690556) internal successors, (8116), 3071 states have internal predecessors, (8116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:59:46,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3072 states to 3072 states and 8116 transitions. [2021-08-06 13:59:46,300 INFO L78 Accepts]: Start accepts. Automaton has 3072 states and 8116 transitions. Word has length 94 [2021-08-06 13:59:46,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:59:46,300 INFO L470 AbstractCegarLoop]: Abstraction has 3072 states and 8116 transitions. [2021-08-06 13:59:46,300 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:59:46,301 INFO L276 IsEmpty]: Start isEmpty. Operand 3072 states and 8116 transitions. [2021-08-06 13:59:46,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:59:46,303 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:59:46,303 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:59:46,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2021-08-06 13:59:46,303 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:59:46,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:59:46,304 INFO L82 PathProgramCache]: Analyzing trace with hash 1815709983, now seen corresponding path program 98 times [2021-08-06 13:59:46,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:59:46,304 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448377067] [2021-08-06 13:59:46,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:59:46,304 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:59:46,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:59:46,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:59:46,962 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:59:46,962 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448377067] [2021-08-06 13:59:46,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448377067] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:59:46,962 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:59:46,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:59:46,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170855615] [2021-08-06 13:59:46,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:59:46,963 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:59:46,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:59:46,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:59:46,963 INFO L87 Difference]: Start difference. First operand 3072 states and 8116 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:59:49,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:59:49,915 INFO L93 Difference]: Finished difference Result 6031 states and 14977 transitions. [2021-08-06 13:59:49,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-08-06 13:59:49,915 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:59:49,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:59:49,922 INFO L225 Difference]: With dead ends: 6031 [2021-08-06 13:59:49,922 INFO L226 Difference]: Without dead ends: 6031 [2021-08-06 13:59:49,923 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 2591.9ms TimeCoverageRelationStatistics Valid=527, Invalid=1635, Unknown=0, NotChecked=0, Total=2162 [2021-08-06 13:59:49,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6031 states. [2021-08-06 13:59:49,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6031 to 3066. [2021-08-06 13:59:49,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3066 states, 3064 states have (on average 2.643929503916449) internal successors, (8101), 3065 states have internal predecessors, (8101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:59:49,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3066 states to 3066 states and 8101 transitions. [2021-08-06 13:59:49,965 INFO L78 Accepts]: Start accepts. Automaton has 3066 states and 8101 transitions. Word has length 94 [2021-08-06 13:59:49,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:59:49,965 INFO L470 AbstractCegarLoop]: Abstraction has 3066 states and 8101 transitions. [2021-08-06 13:59:49,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:59:49,965 INFO L276 IsEmpty]: Start isEmpty. Operand 3066 states and 8101 transitions. [2021-08-06 13:59:49,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:59:49,967 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:59:49,968 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:59:49,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2021-08-06 13:59:49,968 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:59:49,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:59:49,968 INFO L82 PathProgramCache]: Analyzing trace with hash -890309891, now seen corresponding path program 99 times [2021-08-06 13:59:49,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:59:49,968 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753937471] [2021-08-06 13:59:49,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:59:49,968 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:59:49,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:59:50,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:59:50,642 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:59:50,642 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753937471] [2021-08-06 13:59:50,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753937471] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:59:50,643 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:59:50,643 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:59:50,643 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55440098] [2021-08-06 13:59:50,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:59:50,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:59:50,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:59:50,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:59:50,644 INFO L87 Difference]: Start difference. First operand 3066 states and 8101 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:59:53,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:59:53,544 INFO L93 Difference]: Finished difference Result 6264 states and 15463 transitions. [2021-08-06 13:59:53,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-06 13:59:53,545 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:59:53,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:59:53,552 INFO L225 Difference]: With dead ends: 6264 [2021-08-06 13:59:53,552 INFO L226 Difference]: Without dead ends: 6264 [2021-08-06 13:59:53,553 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 2479.6ms TimeCoverageRelationStatistics Valid=494, Invalid=1576, Unknown=0, NotChecked=0, Total=2070 [2021-08-06 13:59:53,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6264 states. [2021-08-06 13:59:53,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6264 to 3072. [2021-08-06 13:59:53,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3072 states, 3070 states have (on average 2.6436482084690556) internal successors, (8116), 3071 states have internal predecessors, (8116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:59:53,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3072 states to 3072 states and 8116 transitions. [2021-08-06 13:59:53,597 INFO L78 Accepts]: Start accepts. Automaton has 3072 states and 8116 transitions. Word has length 94 [2021-08-06 13:59:53,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:59:53,597 INFO L470 AbstractCegarLoop]: Abstraction has 3072 states and 8116 transitions. [2021-08-06 13:59:53,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:59:53,597 INFO L276 IsEmpty]: Start isEmpty. Operand 3072 states and 8116 transitions. [2021-08-06 13:59:53,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:59:53,599 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:59:53,600 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:59:53,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2021-08-06 13:59:53,600 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:59:53,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:59:53,600 INFO L82 PathProgramCache]: Analyzing trace with hash -318491317, now seen corresponding path program 100 times [2021-08-06 13:59:53,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:59:53,600 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128732601] [2021-08-06 13:59:53,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:59:53,600 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:59:53,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:59:54,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:59:54,280 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:59:54,280 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128732601] [2021-08-06 13:59:54,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128732601] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:59:54,280 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:59:54,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:59:54,280 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220332216] [2021-08-06 13:59:54,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:59:54,280 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:59:54,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:59:54,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:59:54,281 INFO L87 Difference]: Start difference. First operand 3072 states and 8116 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:59:57,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:59:57,412 INFO L93 Difference]: Finished difference Result 6493 states and 15910 transitions. [2021-08-06 13:59:57,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-08-06 13:59:57,412 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 13:59:57,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:59:57,420 INFO L225 Difference]: With dead ends: 6493 [2021-08-06 13:59:57,420 INFO L226 Difference]: Without dead ends: 6493 [2021-08-06 13:59:57,421 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 2634.5ms TimeCoverageRelationStatistics Valid=527, Invalid=1635, Unknown=0, NotChecked=0, Total=2162 [2021-08-06 13:59:57,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6493 states. [2021-08-06 13:59:57,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6493 to 3070. [2021-08-06 13:59:57,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3070 states, 3068 states have (on average 2.64374185136897) internal successors, (8111), 3069 states have internal predecessors, (8111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:59:57,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3070 states to 3070 states and 8111 transitions. [2021-08-06 13:59:57,482 INFO L78 Accepts]: Start accepts. Automaton has 3070 states and 8111 transitions. Word has length 94 [2021-08-06 13:59:57,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:59:57,482 INFO L470 AbstractCegarLoop]: Abstraction has 3070 states and 8111 transitions. [2021-08-06 13:59:57,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:59:57,482 INFO L276 IsEmpty]: Start isEmpty. Operand 3070 states and 8111 transitions. [2021-08-06 13:59:57,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 13:59:57,485 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:59:57,485 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 13:59:57,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2021-08-06 13:59:57,485 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 13:59:57,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:59:57,485 INFO L82 PathProgramCache]: Analyzing trace with hash -879136703, now seen corresponding path program 101 times [2021-08-06 13:59:57,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:59:57,486 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931459506] [2021-08-06 13:59:57,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:59:57,486 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:59:57,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:59:58,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:59:58,175 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:59:58,175 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931459506] [2021-08-06 13:59:58,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931459506] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:59:58,175 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:59:58,175 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 13:59:58,175 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364164818] [2021-08-06 13:59:58,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 13:59:58,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:59:58,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 13:59:58,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-08-06 13:59:58,176 INFO L87 Difference]: Start difference. First operand 3070 states and 8111 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:00:01,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:00:01,477 INFO L93 Difference]: Finished difference Result 6086 states and 15101 transitions. [2021-08-06 14:00:01,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-08-06 14:00:01,478 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:00:01,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:00:01,484 INFO L225 Difference]: With dead ends: 6086 [2021-08-06 14:00:01,485 INFO L226 Difference]: Without dead ends: 6086 [2021-08-06 14:00:01,485 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 2798.8ms TimeCoverageRelationStatistics Valid=559, Invalid=1697, Unknown=0, NotChecked=0, Total=2256 [2021-08-06 14:00:01,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6086 states. [2021-08-06 14:00:01,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6086 to 3058. [2021-08-06 14:00:01,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3058 states, 3056 states have (on average 2.6443062827225132) internal successors, (8081), 3057 states have internal predecessors, (8081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:00:01,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3058 states to 3058 states and 8081 transitions. [2021-08-06 14:00:01,534 INFO L78 Accepts]: Start accepts. Automaton has 3058 states and 8081 transitions. Word has length 94 [2021-08-06 14:00:01,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:00:01,535 INFO L470 AbstractCegarLoop]: Abstraction has 3058 states and 8081 transitions. [2021-08-06 14:00:01,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:00:01,535 INFO L276 IsEmpty]: Start isEmpty. Operand 3058 states and 8081 transitions. [2021-08-06 14:00:01,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:00:01,538 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:00:01,538 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:00:01,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2021-08-06 14:00:01,538 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:00:01,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:00:01,539 INFO L82 PathProgramCache]: Analyzing trace with hash 1350674907, now seen corresponding path program 102 times [2021-08-06 14:00:01,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:00:01,539 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922702282] [2021-08-06 14:00:01,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:00:01,539 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:00:01,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:00:02,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:00:02,289 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:00:02,289 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922702282] [2021-08-06 14:00:02,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922702282] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:00:02,289 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:00:02,290 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:00:02,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850110190] [2021-08-06 14:00:02,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:00:02,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:00:02,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:00:02,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:00:02,290 INFO L87 Difference]: Start difference. First operand 3058 states and 8081 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:00:05,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:00:05,576 INFO L93 Difference]: Finished difference Result 5919 states and 14744 transitions. [2021-08-06 14:00:05,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-06 14:00:05,576 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:00:05,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:00:05,584 INFO L225 Difference]: With dead ends: 5919 [2021-08-06 14:00:05,584 INFO L226 Difference]: Without dead ends: 5919 [2021-08-06 14:00:05,584 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 2786.2ms TimeCoverageRelationStatistics Valid=494, Invalid=1576, Unknown=0, NotChecked=0, Total=2070 [2021-08-06 14:00:05,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5919 states. [2021-08-06 14:00:05,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5919 to 3066. [2021-08-06 14:00:05,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3066 states, 3064 states have (on average 2.643929503916449) internal successors, (8101), 3065 states have internal predecessors, (8101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:00:05,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3066 states to 3066 states and 8101 transitions. [2021-08-06 14:00:05,637 INFO L78 Accepts]: Start accepts. Automaton has 3066 states and 8101 transitions. Word has length 94 [2021-08-06 14:00:05,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:00:05,637 INFO L470 AbstractCegarLoop]: Abstraction has 3066 states and 8101 transitions. [2021-08-06 14:00:05,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:00:05,637 INFO L276 IsEmpty]: Start isEmpty. Operand 3066 states and 8101 transitions. [2021-08-06 14:00:05,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:00:05,640 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:00:05,640 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:00:05,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2021-08-06 14:00:05,640 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:00:05,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:00:05,640 INFO L82 PathProgramCache]: Analyzing trace with hash 1922493481, now seen corresponding path program 103 times [2021-08-06 14:00:05,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:00:05,641 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012108191] [2021-08-06 14:00:05,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:00:05,641 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:00:05,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:00:06,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:00:06,391 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:00:06,392 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012108191] [2021-08-06 14:00:06,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012108191] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:00:06,392 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:00:06,392 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:00:06,392 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291713139] [2021-08-06 14:00:06,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:00:06,392 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:00:06,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:00:06,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:00:06,393 INFO L87 Difference]: Start difference. First operand 3066 states and 8101 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:00:09,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:00:09,824 INFO L93 Difference]: Finished difference Result 6148 states and 15191 transitions. [2021-08-06 14:00:09,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-08-06 14:00:09,825 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:00:09,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:00:09,832 INFO L225 Difference]: With dead ends: 6148 [2021-08-06 14:00:09,832 INFO L226 Difference]: Without dead ends: 6148 [2021-08-06 14:00:09,832 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 2920.5ms TimeCoverageRelationStatistics Valid=527, Invalid=1635, Unknown=0, NotChecked=0, Total=2162 [2021-08-06 14:00:09,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6148 states. [2021-08-06 14:00:09,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6148 to 3064. [2021-08-06 14:00:09,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3064 states, 3062 states have (on average 2.644023514043109) internal successors, (8096), 3063 states have internal predecessors, (8096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:00:09,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3064 states to 3064 states and 8096 transitions. [2021-08-06 14:00:09,890 INFO L78 Accepts]: Start accepts. Automaton has 3064 states and 8096 transitions. Word has length 94 [2021-08-06 14:00:09,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:00:09,890 INFO L470 AbstractCegarLoop]: Abstraction has 3064 states and 8096 transitions. [2021-08-06 14:00:09,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:00:09,890 INFO L276 IsEmpty]: Start isEmpty. Operand 3064 states and 8096 transitions. [2021-08-06 14:00:09,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:00:09,893 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:00:09,893 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:00:09,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2021-08-06 14:00:09,893 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:00:09,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:00:09,894 INFO L82 PathProgramCache]: Analyzing trace with hash 1361848095, now seen corresponding path program 104 times [2021-08-06 14:00:09,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:00:09,894 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942476175] [2021-08-06 14:00:09,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:00:09,894 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:00:09,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:00:10,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:00:10,598 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:00:10,598 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942476175] [2021-08-06 14:00:10,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942476175] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:00:10,599 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:00:10,599 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:00:10,599 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271676958] [2021-08-06 14:00:10,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:00:10,599 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:00:10,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:00:10,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:00:10,600 INFO L87 Difference]: Start difference. First operand 3064 states and 8096 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:00:14,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:00:14,328 INFO L93 Difference]: Finished difference Result 6199 states and 15305 transitions. [2021-08-06 14:00:14,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-08-06 14:00:14,328 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:00:14,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:00:14,336 INFO L225 Difference]: With dead ends: 6199 [2021-08-06 14:00:14,336 INFO L226 Difference]: Without dead ends: 6199 [2021-08-06 14:00:14,337 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 3182.5ms TimeCoverageRelationStatistics Valid=559, Invalid=1697, Unknown=0, NotChecked=0, Total=2256 [2021-08-06 14:00:14,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6199 states. [2021-08-06 14:00:14,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6199 to 3060. [2021-08-06 14:00:14,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3060 states, 3058 states have (on average 2.644211903204709) internal successors, (8086), 3059 states have internal predecessors, (8086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:00:14,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3060 states to 3060 states and 8086 transitions. [2021-08-06 14:00:14,385 INFO L78 Accepts]: Start accepts. Automaton has 3060 states and 8086 transitions. Word has length 94 [2021-08-06 14:00:14,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:00:14,385 INFO L470 AbstractCegarLoop]: Abstraction has 3060 states and 8086 transitions. [2021-08-06 14:00:14,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:00:14,385 INFO L276 IsEmpty]: Start isEmpty. Operand 3060 states and 8086 transitions. [2021-08-06 14:00:14,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:00:14,388 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:00:14,388 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:00:14,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2021-08-06 14:00:14,388 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:00:14,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:00:14,389 INFO L82 PathProgramCache]: Analyzing trace with hash 839323713, now seen corresponding path program 105 times [2021-08-06 14:00:14,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:00:14,389 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798466613] [2021-08-06 14:00:14,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:00:14,389 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:00:14,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:00:15,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:00:15,181 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:00:15,181 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798466613] [2021-08-06 14:00:15,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798466613] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:00:15,181 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:00:15,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:00:15,181 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656687806] [2021-08-06 14:00:15,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:00:15,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:00:15,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:00:15,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:00:15,182 INFO L87 Difference]: Start difference. First operand 3060 states and 8086 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:00:19,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:00:19,148 INFO L93 Difference]: Finished difference Result 5737 states and 14372 transitions. [2021-08-06 14:00:19,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-06 14:00:19,148 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:00:19,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:00:19,156 INFO L225 Difference]: With dead ends: 5737 [2021-08-06 14:00:19,156 INFO L226 Difference]: Without dead ends: 5737 [2021-08-06 14:00:19,157 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 3365.0ms TimeCoverageRelationStatistics Valid=590, Invalid=1762, Unknown=0, NotChecked=0, Total=2352 [2021-08-06 14:00:19,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5737 states. [2021-08-06 14:00:19,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5737 to 3058. [2021-08-06 14:00:19,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3058 states, 3056 states have (on average 2.6443062827225132) internal successors, (8081), 3057 states have internal predecessors, (8081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:00:19,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3058 states to 3058 states and 8081 transitions. [2021-08-06 14:00:19,213 INFO L78 Accepts]: Start accepts. Automaton has 3058 states and 8081 transitions. Word has length 94 [2021-08-06 14:00:19,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:00:19,213 INFO L470 AbstractCegarLoop]: Abstraction has 3058 states and 8081 transitions. [2021-08-06 14:00:19,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:00:19,213 INFO L276 IsEmpty]: Start isEmpty. Operand 3058 states and 8081 transitions. [2021-08-06 14:00:19,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:00:19,217 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:00:19,217 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:00:19,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2021-08-06 14:00:19,217 INFO L402 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:00:19,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:00:19,217 INFO L82 PathProgramCache]: Analyzing trace with hash -782279299, now seen corresponding path program 106 times [2021-08-06 14:00:19,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:00:19,217 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218784879] [2021-08-06 14:00:19,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:00:19,218 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:00:19,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:00:19,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:00:19,976 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:00:19,976 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218784879] [2021-08-06 14:00:19,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218784879] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:00:19,976 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:00:19,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:00:19,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080666143] [2021-08-06 14:00:19,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:00:19,977 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:00:19,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:00:19,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:00:19,977 INFO L87 Difference]: Start difference. First operand 3058 states and 8081 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:00:23,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:00:23,887 INFO L93 Difference]: Finished difference Result 7172 states and 18169 transitions. [2021-08-06 14:00:23,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-06 14:00:23,887 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:00:23,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:00:23,896 INFO L225 Difference]: With dead ends: 7172 [2021-08-06 14:00:23,897 INFO L226 Difference]: Without dead ends: 7172 [2021-08-06 14:00:23,897 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 3393.0ms TimeCoverageRelationStatistics Valid=554, Invalid=1516, Unknown=0, NotChecked=0, Total=2070 [2021-08-06 14:00:23,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7172 states. [2021-08-06 14:00:23,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7172 to 3154. [2021-08-06 14:00:23,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3154 states, 3152 states have (on average 2.6551395939086295) internal successors, (8369), 3153 states have internal predecessors, (8369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:00:23,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3154 states to 3154 states and 8369 transitions. [2021-08-06 14:00:23,952 INFO L78 Accepts]: Start accepts. Automaton has 3154 states and 8369 transitions. Word has length 94 [2021-08-06 14:00:23,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:00:23,952 INFO L470 AbstractCegarLoop]: Abstraction has 3154 states and 8369 transitions. [2021-08-06 14:00:23,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:00:23,952 INFO L276 IsEmpty]: Start isEmpty. Operand 3154 states and 8369 transitions. [2021-08-06 14:00:23,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:00:23,955 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:00:23,955 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:00:23,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2021-08-06 14:00:23,956 INFO L402 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:00:23,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:00:23,956 INFO L82 PathProgramCache]: Analyzing trace with hash -824349645, now seen corresponding path program 107 times [2021-08-06 14:00:23,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:00:23,956 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716018877] [2021-08-06 14:00:23,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:00:23,956 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:00:23,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:00:24,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:00:24,745 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:00:24,745 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716018877] [2021-08-06 14:00:24,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716018877] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:00:24,745 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:00:24,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:00:24,745 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947453719] [2021-08-06 14:00:24,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:00:24,746 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:00:24,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:00:24,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:00:24,746 INFO L87 Difference]: Start difference. First operand 3154 states and 8369 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:00:28,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:00:28,765 INFO L93 Difference]: Finished difference Result 7862 states and 19991 transitions. [2021-08-06 14:00:28,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-06 14:00:28,765 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:00:28,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:00:28,775 INFO L225 Difference]: With dead ends: 7862 [2021-08-06 14:00:28,776 INFO L226 Difference]: Without dead ends: 7862 [2021-08-06 14:00:28,776 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 3401.4ms TimeCoverageRelationStatistics Valid=536, Invalid=1444, Unknown=0, NotChecked=0, Total=1980 [2021-08-06 14:00:28,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7862 states. [2021-08-06 14:00:28,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7862 to 3118. [2021-08-06 14:00:28,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3118 states, 3116 states have (on average 2.6511553273427473) internal successors, (8261), 3117 states have internal predecessors, (8261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:00:28,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3118 states to 3118 states and 8261 transitions. [2021-08-06 14:00:28,843 INFO L78 Accepts]: Start accepts. Automaton has 3118 states and 8261 transitions. Word has length 94 [2021-08-06 14:00:28,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:00:28,843 INFO L470 AbstractCegarLoop]: Abstraction has 3118 states and 8261 transitions. [2021-08-06 14:00:28,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:00:28,843 INFO L276 IsEmpty]: Start isEmpty. Operand 3118 states and 8261 transitions. [2021-08-06 14:00:28,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:00:28,849 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:00:28,849 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:00:28,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2021-08-06 14:00:28,849 INFO L402 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:00:28,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:00:28,849 INFO L82 PathProgramCache]: Analyzing trace with hash -471836523, now seen corresponding path program 108 times [2021-08-06 14:00:28,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:00:28,850 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335826726] [2021-08-06 14:00:28,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:00:28,850 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:00:28,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:00:29,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:00:29,616 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:00:29,616 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335826726] [2021-08-06 14:00:29,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335826726] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:00:29,616 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:00:29,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:00:29,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028072719] [2021-08-06 14:00:29,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:00:29,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:00:29,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:00:29,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:00:29,617 INFO L87 Difference]: Start difference. First operand 3118 states and 8261 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:00:33,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:00:33,360 INFO L93 Difference]: Finished difference Result 7568 states and 19074 transitions. [2021-08-06 14:00:33,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-06 14:00:33,361 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:00:33,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:00:33,370 INFO L225 Difference]: With dead ends: 7568 [2021-08-06 14:00:33,371 INFO L226 Difference]: Without dead ends: 7568 [2021-08-06 14:00:33,371 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 3279.2ms TimeCoverageRelationStatistics Valid=539, Invalid=1531, Unknown=0, NotChecked=0, Total=2070 [2021-08-06 14:00:33,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7568 states. [2021-08-06 14:00:33,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7568 to 3120. [2021-08-06 14:00:33,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3120 states, 3118 states have (on average 2.651058370750481) internal successors, (8266), 3119 states have internal predecessors, (8266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:00:33,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3120 states to 3120 states and 8266 transitions. [2021-08-06 14:00:33,428 INFO L78 Accepts]: Start accepts. Automaton has 3120 states and 8266 transitions. Word has length 94 [2021-08-06 14:00:33,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:00:33,428 INFO L470 AbstractCegarLoop]: Abstraction has 3120 states and 8266 transitions. [2021-08-06 14:00:33,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:00:33,428 INFO L276 IsEmpty]: Start isEmpty. Operand 3120 states and 8266 transitions. [2021-08-06 14:00:33,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:00:33,432 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:00:33,432 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:00:33,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2021-08-06 14:00:33,432 INFO L402 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:00:33,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:00:33,432 INFO L82 PathProgramCache]: Analyzing trace with hash 99982051, now seen corresponding path program 109 times [2021-08-06 14:00:33,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:00:33,432 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681026137] [2021-08-06 14:00:33,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:00:33,432 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:00:33,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:00:34,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:00:34,182 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:00:34,182 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681026137] [2021-08-06 14:00:34,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681026137] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:00:34,182 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:00:34,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:00:34,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113678129] [2021-08-06 14:00:34,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:00:34,183 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:00:34,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:00:34,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:00:34,183 INFO L87 Difference]: Start difference. First operand 3120 states and 8266 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:00:38,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:00:38,172 INFO L93 Difference]: Finished difference Result 7546 states and 19028 transitions. [2021-08-06 14:00:38,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-08-06 14:00:38,173 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:00:38,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:00:38,183 INFO L225 Difference]: With dead ends: 7546 [2021-08-06 14:00:38,184 INFO L226 Difference]: Without dead ends: 7546 [2021-08-06 14:00:38,184 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 3425.6ms TimeCoverageRelationStatistics Valid=572, Invalid=1590, Unknown=0, NotChecked=0, Total=2162 [2021-08-06 14:00:38,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7546 states. [2021-08-06 14:00:38,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7546 to 3118. [2021-08-06 14:00:38,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3118 states, 3116 states have (on average 2.6511553273427473) internal successors, (8261), 3117 states have internal predecessors, (8261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:00:38,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3118 states to 3118 states and 8261 transitions. [2021-08-06 14:00:38,245 INFO L78 Accepts]: Start accepts. Automaton has 3118 states and 8261 transitions. Word has length 94 [2021-08-06 14:00:38,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:00:38,245 INFO L470 AbstractCegarLoop]: Abstraction has 3118 states and 8261 transitions. [2021-08-06 14:00:38,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:00:38,246 INFO L276 IsEmpty]: Start isEmpty. Operand 3118 states and 8261 transitions. [2021-08-06 14:00:38,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:00:38,250 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:00:38,250 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:00:38,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2021-08-06 14:00:38,250 INFO L402 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:00:38,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:00:38,250 INFO L82 PathProgramCache]: Analyzing trace with hash 1514755605, now seen corresponding path program 110 times [2021-08-06 14:00:38,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:00:38,250 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216030724] [2021-08-06 14:00:38,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:00:38,250 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:00:38,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:00:39,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:00:39,017 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:00:39,017 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216030724] [2021-08-06 14:00:39,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216030724] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:00:39,017 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:00:39,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:00:39,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565826856] [2021-08-06 14:00:39,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:00:39,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:00:39,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:00:39,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:00:39,018 INFO L87 Difference]: Start difference. First operand 3118 states and 8261 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:00:44,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:00:44,582 INFO L93 Difference]: Finished difference Result 9028 states and 22741 transitions. [2021-08-06 14:00:44,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-08-06 14:00:44,583 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:00:44,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:00:44,597 INFO L225 Difference]: With dead ends: 9028 [2021-08-06 14:00:44,597 INFO L226 Difference]: Without dead ends: 9028 [2021-08-06 14:00:44,597 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 4651.2ms TimeCoverageRelationStatistics Valid=773, Invalid=1879, Unknown=0, NotChecked=0, Total=2652 [2021-08-06 14:00:44,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9028 states. [2021-08-06 14:00:44,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9028 to 3130. [2021-08-06 14:00:44,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3130 states, 3128 states have (on average 2.6524936061381075) internal successors, (8297), 3129 states have internal predecessors, (8297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:00:44,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3130 states to 3130 states and 8297 transitions. [2021-08-06 14:00:44,685 INFO L78 Accepts]: Start accepts. Automaton has 3130 states and 8297 transitions. Word has length 94 [2021-08-06 14:00:44,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:00:44,685 INFO L470 AbstractCegarLoop]: Abstraction has 3130 states and 8297 transitions. [2021-08-06 14:00:44,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:00:44,685 INFO L276 IsEmpty]: Start isEmpty. Operand 3130 states and 8297 transitions. [2021-08-06 14:00:44,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:00:44,690 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:00:44,690 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:00:44,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2021-08-06 14:00:44,691 INFO L402 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:00:44,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:00:44,691 INFO L82 PathProgramCache]: Analyzing trace with hash 912754797, now seen corresponding path program 111 times [2021-08-06 14:00:44,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:00:44,691 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179386113] [2021-08-06 14:00:44,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:00:44,691 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:00:44,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:00:45,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:00:45,507 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:00:45,507 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179386113] [2021-08-06 14:00:45,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179386113] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:00:45,507 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:00:45,507 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:00:45,507 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041064712] [2021-08-06 14:00:45,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:00:45,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:00:45,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:00:45,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:00:45,508 INFO L87 Difference]: Start difference. First operand 3130 states and 8297 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:00:49,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:00:49,710 INFO L93 Difference]: Finished difference Result 8183 states and 20641 transitions. [2021-08-06 14:00:49,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-08-06 14:00:49,710 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:00:49,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:00:49,721 INFO L225 Difference]: With dead ends: 8183 [2021-08-06 14:00:49,721 INFO L226 Difference]: Without dead ends: 8183 [2021-08-06 14:00:49,722 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 3589.0ms TimeCoverageRelationStatistics Valid=587, Invalid=1575, Unknown=0, NotChecked=0, Total=2162 [2021-08-06 14:00:49,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8183 states. [2021-08-06 14:00:49,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8183 to 3106. [2021-08-06 14:00:49,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3106 states, 3104 states have (on average 2.649806701030928) internal successors, (8225), 3105 states have internal predecessors, (8225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:00:49,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3106 states to 3106 states and 8225 transitions. [2021-08-06 14:00:49,800 INFO L78 Accepts]: Start accepts. Automaton has 3106 states and 8225 transitions. Word has length 94 [2021-08-06 14:00:49,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:00:49,801 INFO L470 AbstractCegarLoop]: Abstraction has 3106 states and 8225 transitions. [2021-08-06 14:00:49,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:00:49,801 INFO L276 IsEmpty]: Start isEmpty. Operand 3106 states and 8225 transitions. [2021-08-06 14:00:49,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:00:49,804 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:00:49,804 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:00:49,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2021-08-06 14:00:49,804 INFO L402 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:00:49,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:00:49,805 INFO L82 PathProgramCache]: Analyzing trace with hash 952569981, now seen corresponding path program 112 times [2021-08-06 14:00:49,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:00:49,805 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811526304] [2021-08-06 14:00:49,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:00:49,805 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:00:49,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:00:50,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:00:50,567 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:00:50,567 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811526304] [2021-08-06 14:00:50,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811526304] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:00:50,568 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:00:50,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:00:50,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872702979] [2021-08-06 14:00:50,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:00:50,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:00:50,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:00:50,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:00:50,569 INFO L87 Difference]: Start difference. First operand 3106 states and 8225 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:00:54,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:00:54,239 INFO L93 Difference]: Finished difference Result 7667 states and 19326 transitions. [2021-08-06 14:00:54,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-06 14:00:54,240 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:00:54,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:00:54,249 INFO L225 Difference]: With dead ends: 7667 [2021-08-06 14:00:54,249 INFO L226 Difference]: Without dead ends: 7667 [2021-08-06 14:00:54,249 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 3119.3ms TimeCoverageRelationStatistics Valid=524, Invalid=1546, Unknown=0, NotChecked=0, Total=2070 [2021-08-06 14:00:54,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7667 states. [2021-08-06 14:00:54,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7667 to 3112. [2021-08-06 14:00:54,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3112 states, 3110 states have (on average 2.64951768488746) internal successors, (8240), 3111 states have internal predecessors, (8240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:00:54,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3112 states to 3112 states and 8240 transitions. [2021-08-06 14:00:54,305 INFO L78 Accepts]: Start accepts. Automaton has 3112 states and 8240 transitions. Word has length 94 [2021-08-06 14:00:54,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:00:54,305 INFO L470 AbstractCegarLoop]: Abstraction has 3112 states and 8240 transitions. [2021-08-06 14:00:54,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:00:54,305 INFO L276 IsEmpty]: Start isEmpty. Operand 3112 states and 8240 transitions. [2021-08-06 14:00:54,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:00:54,308 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:00:54,309 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:00:54,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2021-08-06 14:00:54,309 INFO L402 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:00:54,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:00:54,309 INFO L82 PathProgramCache]: Analyzing trace with hash 1524388555, now seen corresponding path program 113 times [2021-08-06 14:00:54,309 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:00:54,309 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422312601] [2021-08-06 14:00:54,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:00:54,309 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:00:54,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:00:55,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:00:55,059 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:00:55,059 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422312601] [2021-08-06 14:00:55,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422312601] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:00:55,059 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:00:55,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:00:55,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960855222] [2021-08-06 14:00:55,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:00:55,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:00:55,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:00:55,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:00:55,060 INFO L87 Difference]: Start difference. First operand 3112 states and 8240 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:00:58,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:00:58,910 INFO L93 Difference]: Finished difference Result 7896 states and 19773 transitions. [2021-08-06 14:00:58,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-08-06 14:00:58,910 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:00:58,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:00:58,922 INFO L225 Difference]: With dead ends: 7896 [2021-08-06 14:00:58,922 INFO L226 Difference]: Without dead ends: 7896 [2021-08-06 14:00:58,923 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 3266.0ms TimeCoverageRelationStatistics Valid=557, Invalid=1605, Unknown=0, NotChecked=0, Total=2162 [2021-08-06 14:00:58,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7896 states. [2021-08-06 14:00:58,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7896 to 3110. [2021-08-06 14:00:58,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3110 states, 3108 states have (on average 2.6496138996139) internal successors, (8235), 3109 states have internal predecessors, (8235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:00:59,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3110 states to 3110 states and 8235 transitions. [2021-08-06 14:00:59,001 INFO L78 Accepts]: Start accepts. Automaton has 3110 states and 8235 transitions. Word has length 94 [2021-08-06 14:00:59,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:00:59,001 INFO L470 AbstractCegarLoop]: Abstraction has 3110 states and 8235 transitions. [2021-08-06 14:00:59,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:00:59,002 INFO L276 IsEmpty]: Start isEmpty. Operand 3110 states and 8235 transitions. [2021-08-06 14:00:59,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:00:59,006 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:00:59,006 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:00:59,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2021-08-06 14:00:59,006 INFO L402 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:00:59,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:00:59,007 INFO L82 PathProgramCache]: Analyzing trace with hash 963743169, now seen corresponding path program 114 times [2021-08-06 14:00:59,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:00:59,007 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235442743] [2021-08-06 14:00:59,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:00:59,007 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:00:59,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:00:59,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:00:59,808 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:00:59,808 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235442743] [2021-08-06 14:00:59,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235442743] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:00:59,809 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:00:59,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:00:59,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285028229] [2021-08-06 14:00:59,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:00:59,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:00:59,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:00:59,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:00:59,809 INFO L87 Difference]: Start difference. First operand 3110 states and 8235 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:01:03,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:01:03,798 INFO L93 Difference]: Finished difference Result 7677 states and 19351 transitions. [2021-08-06 14:01:03,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-08-06 14:01:03,799 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:01:03,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:01:03,809 INFO L225 Difference]: With dead ends: 7677 [2021-08-06 14:01:03,809 INFO L226 Difference]: Without dead ends: 7677 [2021-08-06 14:01:03,809 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 3466.7ms TimeCoverageRelationStatistics Valid=589, Invalid=1667, Unknown=0, NotChecked=0, Total=2256 [2021-08-06 14:01:03,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7677 states. [2021-08-06 14:01:03,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7677 to 3106. [2021-08-06 14:01:03,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3106 states, 3104 states have (on average 2.649806701030928) internal successors, (8225), 3105 states have internal predecessors, (8225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:01:03,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3106 states to 3106 states and 8225 transitions. [2021-08-06 14:01:03,867 INFO L78 Accepts]: Start accepts. Automaton has 3106 states and 8225 transitions. Word has length 94 [2021-08-06 14:01:03,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:01:03,867 INFO L470 AbstractCegarLoop]: Abstraction has 3106 states and 8225 transitions. [2021-08-06 14:01:03,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:01:03,868 INFO L276 IsEmpty]: Start isEmpty. Operand 3106 states and 8225 transitions. [2021-08-06 14:01:03,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:01:03,871 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:01:03,871 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:01:03,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2021-08-06 14:01:03,871 INFO L402 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:01:03,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:01:03,871 INFO L82 PathProgramCache]: Analyzing trace with hash -1929653837, now seen corresponding path program 115 times [2021-08-06 14:01:03,871 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:01:03,871 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862427024] [2021-08-06 14:01:03,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:01:03,872 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:01:03,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:01:04,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:01:04,680 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:01:04,680 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862427024] [2021-08-06 14:01:04,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862427024] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:01:04,681 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:01:04,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:01:04,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107991607] [2021-08-06 14:01:04,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:01:04,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:01:04,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:01:04,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:01:04,682 INFO L87 Difference]: Start difference. First operand 3106 states and 8225 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:01:10,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:01:10,381 INFO L93 Difference]: Finished difference Result 9362 states and 23621 transitions. [2021-08-06 14:01:10,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-08-06 14:01:10,382 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:01:10,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:01:10,396 INFO L225 Difference]: With dead ends: 9362 [2021-08-06 14:01:10,396 INFO L226 Difference]: Without dead ends: 9362 [2021-08-06 14:01:10,396 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 4937.3ms TimeCoverageRelationStatistics Valid=828, Invalid=2034, Unknown=0, NotChecked=0, Total=2862 [2021-08-06 14:01:10,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9362 states. [2021-08-06 14:01:10,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9362 to 3142. [2021-08-06 14:01:10,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3142 states, 3140 states have (on average 2.6538216560509555) internal successors, (8333), 3141 states have internal predecessors, (8333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:01:10,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3142 states to 3142 states and 8333 transitions. [2021-08-06 14:01:10,477 INFO L78 Accepts]: Start accepts. Automaton has 3142 states and 8333 transitions. Word has length 94 [2021-08-06 14:01:10,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:01:10,477 INFO L470 AbstractCegarLoop]: Abstraction has 3142 states and 8333 transitions. [2021-08-06 14:01:10,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:01:10,478 INFO L276 IsEmpty]: Start isEmpty. Operand 3142 states and 8333 transitions. [2021-08-06 14:01:10,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:01:10,482 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:01:10,482 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:01:10,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2021-08-06 14:01:10,482 INFO L402 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:01:10,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:01:10,482 INFO L82 PathProgramCache]: Analyzing trace with hash 1763312651, now seen corresponding path program 116 times [2021-08-06 14:01:10,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:01:10,482 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807308237] [2021-08-06 14:01:10,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:01:10,483 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:01:10,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:01:11,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:01:11,283 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:01:11,283 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807308237] [2021-08-06 14:01:11,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807308237] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:01:11,283 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:01:11,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:01:11,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718426440] [2021-08-06 14:01:11,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:01:11,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:01:11,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:01:11,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:01:11,284 INFO L87 Difference]: Start difference. First operand 3142 states and 8333 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:01:16,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:01:16,947 INFO L93 Difference]: Finished difference Result 9571 states and 23976 transitions. [2021-08-06 14:01:16,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-08-06 14:01:16,947 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:01:16,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:01:16,961 INFO L225 Difference]: With dead ends: 9571 [2021-08-06 14:01:16,961 INFO L226 Difference]: Without dead ends: 9571 [2021-08-06 14:01:16,962 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 4804.1ms TimeCoverageRelationStatistics Valid=812, Invalid=2050, Unknown=0, NotChecked=0, Total=2862 [2021-08-06 14:01:16,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9571 states. [2021-08-06 14:01:17,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9571 to 3130. [2021-08-06 14:01:17,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3130 states, 3128 states have (on average 2.6524936061381075) internal successors, (8297), 3129 states have internal predecessors, (8297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:01:17,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3130 states to 3130 states and 8297 transitions. [2021-08-06 14:01:17,038 INFO L78 Accepts]: Start accepts. Automaton has 3130 states and 8297 transitions. Word has length 94 [2021-08-06 14:01:17,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:01:17,038 INFO L470 AbstractCegarLoop]: Abstraction has 3130 states and 8297 transitions. [2021-08-06 14:01:17,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:01:17,038 INFO L276 IsEmpty]: Start isEmpty. Operand 3130 states and 8297 transitions. [2021-08-06 14:01:17,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:01:17,042 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:01:17,042 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:01:17,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2021-08-06 14:01:17,042 INFO L402 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:01:17,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:01:17,043 INFO L82 PathProgramCache]: Analyzing trace with hash 389894519, now seen corresponding path program 117 times [2021-08-06 14:01:17,043 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:01:17,043 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656975639] [2021-08-06 14:01:17,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:01:17,043 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:01:17,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:01:17,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:01:17,779 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:01:17,779 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656975639] [2021-08-06 14:01:17,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656975639] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:01:17,779 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:01:17,780 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:01:17,780 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497486048] [2021-08-06 14:01:17,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:01:17,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:01:17,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:01:17,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:01:17,781 INFO L87 Difference]: Start difference. First operand 3130 states and 8297 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:01:21,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:01:21,902 INFO L93 Difference]: Finished difference Result 8436 states and 21299 transitions. [2021-08-06 14:01:21,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-08-06 14:01:21,903 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:01:21,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:01:21,916 INFO L225 Difference]: With dead ends: 8436 [2021-08-06 14:01:21,916 INFO L226 Difference]: Without dead ends: 8436 [2021-08-06 14:01:21,916 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 3485.1ms TimeCoverageRelationStatistics Valid=604, Invalid=1652, Unknown=0, NotChecked=0, Total=2256 [2021-08-06 14:01:21,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8436 states. [2021-08-06 14:01:21,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8436 to 3082. [2021-08-06 14:01:21,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3082 states, 3080 states have (on average 2.647077922077922) internal successors, (8153), 3081 states have internal predecessors, (8153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:01:21,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3082 states to 3082 states and 8153 transitions. [2021-08-06 14:01:21,987 INFO L78 Accepts]: Start accepts. Automaton has 3082 states and 8153 transitions. Word has length 94 [2021-08-06 14:01:21,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:01:21,987 INFO L470 AbstractCegarLoop]: Abstraction has 3082 states and 8153 transitions. [2021-08-06 14:01:21,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:01:21,987 INFO L276 IsEmpty]: Start isEmpty. Operand 3082 states and 8153 transitions. [2021-08-06 14:01:21,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:01:21,991 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:01:21,991 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:01:21,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2021-08-06 14:01:21,991 INFO L402 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:01:21,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:01:21,991 INFO L82 PathProgramCache]: Analyzing trace with hash -1424102915, now seen corresponding path program 118 times [2021-08-06 14:01:21,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:01:21,991 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445547123] [2021-08-06 14:01:21,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:01:21,992 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:01:22,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:01:22,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:01:22,739 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:01:22,739 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445547123] [2021-08-06 14:01:22,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445547123] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:01:22,739 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:01:22,739 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:01:22,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024045221] [2021-08-06 14:01:22,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:01:22,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:01:22,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:01:22,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:01:22,740 INFO L87 Difference]: Start difference. First operand 3082 states and 8153 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:01:25,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:01:25,967 INFO L93 Difference]: Finished difference Result 7808 states and 19701 transitions. [2021-08-06 14:01:25,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-06 14:01:25,967 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:01:25,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:01:25,976 INFO L225 Difference]: With dead ends: 7808 [2021-08-06 14:01:25,977 INFO L226 Difference]: Without dead ends: 7808 [2021-08-06 14:01:25,977 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 2813.1ms TimeCoverageRelationStatistics Valid=509, Invalid=1561, Unknown=0, NotChecked=0, Total=2070 [2021-08-06 14:01:25,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7808 states. [2021-08-06 14:01:26,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7808 to 3090. [2021-08-06 14:01:26,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3090 states, 3088 states have (on average 2.6466968911917097) internal successors, (8173), 3089 states have internal predecessors, (8173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:01:26,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3090 states to 3090 states and 8173 transitions. [2021-08-06 14:01:26,029 INFO L78 Accepts]: Start accepts. Automaton has 3090 states and 8173 transitions. Word has length 94 [2021-08-06 14:01:26,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:01:26,030 INFO L470 AbstractCegarLoop]: Abstraction has 3090 states and 8173 transitions. [2021-08-06 14:01:26,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:01:26,030 INFO L276 IsEmpty]: Start isEmpty. Operand 3090 states and 8173 transitions. [2021-08-06 14:01:26,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:01:26,033 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:01:26,033 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:01:26,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2021-08-06 14:01:26,034 INFO L402 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:01:26,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:01:26,034 INFO L82 PathProgramCache]: Analyzing trace with hash -852284341, now seen corresponding path program 119 times [2021-08-06 14:01:26,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:01:26,034 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140132640] [2021-08-06 14:01:26,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:01:26,034 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:01:26,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:01:26,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:01:26,727 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:01:26,727 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140132640] [2021-08-06 14:01:26,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140132640] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:01:26,727 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:01:26,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:01:26,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739088141] [2021-08-06 14:01:26,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:01:26,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:01:26,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:01:26,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:01:26,728 INFO L87 Difference]: Start difference. First operand 3090 states and 8173 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:01:30,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:01:30,166 INFO L93 Difference]: Finished difference Result 8037 states and 20148 transitions. [2021-08-06 14:01:30,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-08-06 14:01:30,166 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:01:30,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:01:30,176 INFO L225 Difference]: With dead ends: 8037 [2021-08-06 14:01:30,176 INFO L226 Difference]: Without dead ends: 8037 [2021-08-06 14:01:30,177 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 2881.3ms TimeCoverageRelationStatistics Valid=542, Invalid=1620, Unknown=0, NotChecked=0, Total=2162 [2021-08-06 14:01:30,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8037 states. [2021-08-06 14:01:30,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8037 to 3088. [2021-08-06 14:01:30,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3088 states, 3086 states have (on average 2.6467919637070643) internal successors, (8168), 3087 states have internal predecessors, (8168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:01:30,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3088 states to 3088 states and 8168 transitions. [2021-08-06 14:01:30,245 INFO L78 Accepts]: Start accepts. Automaton has 3088 states and 8168 transitions. Word has length 94 [2021-08-06 14:01:30,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:01:30,245 INFO L470 AbstractCegarLoop]: Abstraction has 3088 states and 8168 transitions. [2021-08-06 14:01:30,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:01:30,245 INFO L276 IsEmpty]: Start isEmpty. Operand 3088 states and 8168 transitions. [2021-08-06 14:01:30,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:01:30,248 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:01:30,248 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:01:30,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2021-08-06 14:01:30,248 INFO L402 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:01:30,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:01:30,248 INFO L82 PathProgramCache]: Analyzing trace with hash -1412929727, now seen corresponding path program 120 times [2021-08-06 14:01:30,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:01:30,248 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503316784] [2021-08-06 14:01:30,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:01:30,249 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:01:30,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:01:30,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:01:30,948 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:01:30,948 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503316784] [2021-08-06 14:01:30,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503316784] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:01:30,948 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:01:30,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:01:30,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484470333] [2021-08-06 14:01:30,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:01:30,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:01:30,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:01:30,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:01:30,949 INFO L87 Difference]: Start difference. First operand 3088 states and 8168 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:01:34,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:01:34,473 INFO L93 Difference]: Finished difference Result 8088 states and 20262 transitions. [2021-08-06 14:01:34,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-08-06 14:01:34,474 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:01:34,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:01:34,483 INFO L225 Difference]: With dead ends: 8088 [2021-08-06 14:01:34,483 INFO L226 Difference]: Without dead ends: 8088 [2021-08-06 14:01:34,483 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 2978.9ms TimeCoverageRelationStatistics Valid=574, Invalid=1682, Unknown=0, NotChecked=0, Total=2256 [2021-08-06 14:01:34,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8088 states. [2021-08-06 14:01:34,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8088 to 3084. [2021-08-06 14:01:34,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3084 states, 3082 states have (on average 2.646982478909799) internal successors, (8158), 3083 states have internal predecessors, (8158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:01:34,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3084 states to 3084 states and 8158 transitions. [2021-08-06 14:01:34,542 INFO L78 Accepts]: Start accepts. Automaton has 3084 states and 8158 transitions. Word has length 94 [2021-08-06 14:01:34,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:01:34,542 INFO L470 AbstractCegarLoop]: Abstraction has 3084 states and 8158 transitions. [2021-08-06 14:01:34,542 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:01:34,543 INFO L276 IsEmpty]: Start isEmpty. Operand 3084 states and 8158 transitions. [2021-08-06 14:01:34,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:01:34,546 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:01:34,546 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:01:34,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2021-08-06 14:01:34,547 INFO L402 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:01:34,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:01:34,547 INFO L82 PathProgramCache]: Analyzing trace with hash -1935454109, now seen corresponding path program 121 times [2021-08-06 14:01:34,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:01:34,547 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591379010] [2021-08-06 14:01:34,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:01:34,547 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:01:34,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:01:35,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:01:35,258 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:01:35,259 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591379010] [2021-08-06 14:01:35,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591379010] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:01:35,259 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:01:35,259 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:01:35,259 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558855913] [2021-08-06 14:01:35,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:01:35,259 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:01:35,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:01:35,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:01:35,260 INFO L87 Difference]: Start difference. First operand 3084 states and 8158 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:01:39,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:01:39,099 INFO L93 Difference]: Finished difference Result 7831 states and 19754 transitions. [2021-08-06 14:01:39,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-06 14:01:39,099 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:01:39,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:01:39,108 INFO L225 Difference]: With dead ends: 7831 [2021-08-06 14:01:39,108 INFO L226 Difference]: Without dead ends: 7831 [2021-08-06 14:01:39,109 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 3254.5ms TimeCoverageRelationStatistics Valid=605, Invalid=1747, Unknown=0, NotChecked=0, Total=2352 [2021-08-06 14:01:39,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7831 states. [2021-08-06 14:01:39,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7831 to 3082. [2021-08-06 14:01:39,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3082 states, 3080 states have (on average 2.647077922077922) internal successors, (8153), 3081 states have internal predecessors, (8153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:01:39,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3082 states to 3082 states and 8153 transitions. [2021-08-06 14:01:39,182 INFO L78 Accepts]: Start accepts. Automaton has 3082 states and 8153 transitions. Word has length 94 [2021-08-06 14:01:39,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:01:39,182 INFO L470 AbstractCegarLoop]: Abstraction has 3082 states and 8153 transitions. [2021-08-06 14:01:39,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:01:39,182 INFO L276 IsEmpty]: Start isEmpty. Operand 3082 states and 8153 transitions. [2021-08-06 14:01:39,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:01:39,186 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:01:39,186 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:01:39,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2021-08-06 14:01:39,187 INFO L402 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:01:39,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:01:39,187 INFO L82 PathProgramCache]: Analyzing trace with hash 1961430131, now seen corresponding path program 122 times [2021-08-06 14:01:39,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:01:39,187 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968311597] [2021-08-06 14:01:39,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:01:39,187 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:01:39,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:01:39,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:01:39,894 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:01:39,894 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968311597] [2021-08-06 14:01:39,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968311597] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:01:39,894 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:01:39,894 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:01:39,894 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697157005] [2021-08-06 14:01:39,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:01:39,895 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:01:39,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:01:39,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:01:39,895 INFO L87 Difference]: Start difference. First operand 3082 states and 8153 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:01:45,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:01:45,327 INFO L93 Difference]: Finished difference Result 9694 states and 24496 transitions. [2021-08-06 14:01:45,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-08-06 14:01:45,327 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:01:45,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:01:45,338 INFO L225 Difference]: With dead ends: 9694 [2021-08-06 14:01:45,339 INFO L226 Difference]: Without dead ends: 9694 [2021-08-06 14:01:45,339 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 328 ImplicationChecksByTransitivity, 4663.7ms TimeCoverageRelationStatistics Valid=882, Invalid=2198, Unknown=0, NotChecked=0, Total=3080 [2021-08-06 14:01:45,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9694 states. [2021-08-06 14:01:45,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9694 to 3130. [2021-08-06 14:01:45,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3130 states, 3128 states have (on average 2.6524936061381075) internal successors, (8297), 3129 states have internal predecessors, (8297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:01:45,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3130 states to 3130 states and 8297 transitions. [2021-08-06 14:01:45,420 INFO L78 Accepts]: Start accepts. Automaton has 3130 states and 8297 transitions. Word has length 94 [2021-08-06 14:01:45,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:01:45,420 INFO L470 AbstractCegarLoop]: Abstraction has 3130 states and 8297 transitions. [2021-08-06 14:01:45,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:01:45,420 INFO L276 IsEmpty]: Start isEmpty. Operand 3130 states and 8297 transitions. [2021-08-06 14:01:45,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:01:45,423 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:01:45,423 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:01:45,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2021-08-06 14:01:45,423 INFO L402 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:01:45,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:01:45,423 INFO L82 PathProgramCache]: Analyzing trace with hash 1359429323, now seen corresponding path program 123 times [2021-08-06 14:01:45,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:01:45,423 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620123820] [2021-08-06 14:01:45,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:01:45,424 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:01:45,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:01:46,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:01:46,151 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:01:46,151 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620123820] [2021-08-06 14:01:46,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620123820] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:01:46,151 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:01:46,151 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:01:46,151 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143891015] [2021-08-06 14:01:46,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:01:46,151 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:01:46,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:01:46,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:01:46,153 INFO L87 Difference]: Start difference. First operand 3130 states and 8297 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:01:52,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:01:52,078 INFO L93 Difference]: Finished difference Result 9903 states and 24851 transitions. [2021-08-06 14:01:52,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-08-06 14:01:52,079 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:01:52,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:01:52,094 INFO L225 Difference]: With dead ends: 9903 [2021-08-06 14:01:52,095 INFO L226 Difference]: Without dead ends: 9903 [2021-08-06 14:01:52,095 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 4987.0ms TimeCoverageRelationStatistics Valid=865, Invalid=2215, Unknown=0, NotChecked=0, Total=3080 [2021-08-06 14:01:52,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9903 states. [2021-08-06 14:01:52,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9903 to 3118. [2021-08-06 14:01:52,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3118 states, 3116 states have (on average 2.6511553273427473) internal successors, (8261), 3117 states have internal predecessors, (8261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:01:52,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3118 states to 3118 states and 8261 transitions. [2021-08-06 14:01:52,181 INFO L78 Accepts]: Start accepts. Automaton has 3118 states and 8261 transitions. Word has length 94 [2021-08-06 14:01:52,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:01:52,182 INFO L470 AbstractCegarLoop]: Abstraction has 3118 states and 8261 transitions. [2021-08-06 14:01:52,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:01:52,182 INFO L276 IsEmpty]: Start isEmpty. Operand 3118 states and 8261 transitions. [2021-08-06 14:01:52,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:01:52,186 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:01:52,186 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:01:52,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2021-08-06 14:01:52,187 INFO L402 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:01:52,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:01:52,187 INFO L82 PathProgramCache]: Analyzing trace with hash -13988809, now seen corresponding path program 124 times [2021-08-06 14:01:52,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:01:52,187 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684821341] [2021-08-06 14:01:52,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:01:52,188 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:01:52,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:01:52,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:01:52,966 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:01:52,967 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684821341] [2021-08-06 14:01:52,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684821341] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:01:52,967 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:01:52,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:01:52,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532377154] [2021-08-06 14:01:52,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:01:52,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:01:52,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:01:52,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:01:52,968 INFO L87 Difference]: Start difference. First operand 3118 states and 8261 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:01:58,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:01:58,578 INFO L93 Difference]: Finished difference Result 9932 states and 24919 transitions. [2021-08-06 14:01:58,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-08-06 14:01:58,578 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:01:58,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:01:58,591 INFO L225 Difference]: With dead ends: 9932 [2021-08-06 14:01:58,592 INFO L226 Difference]: Without dead ends: 9932 [2021-08-06 14:01:58,592 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 4748.3ms TimeCoverageRelationStatistics Valid=817, Invalid=2153, Unknown=0, NotChecked=0, Total=2970 [2021-08-06 14:01:58,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9932 states. [2021-08-06 14:01:58,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9932 to 3094. [2021-08-06 14:01:58,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3094 states, 3092 states have (on average 2.6484476067270375) internal successors, (8189), 3093 states have internal predecessors, (8189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:01:58,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3094 states to 3094 states and 8189 transitions. [2021-08-06 14:01:58,658 INFO L78 Accepts]: Start accepts. Automaton has 3094 states and 8189 transitions. Word has length 94 [2021-08-06 14:01:58,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:01:58,658 INFO L470 AbstractCegarLoop]: Abstraction has 3094 states and 8189 transitions. [2021-08-06 14:01:58,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:01:58,658 INFO L276 IsEmpty]: Start isEmpty. Operand 3094 states and 8189 transitions. [2021-08-06 14:01:58,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:01:58,662 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:01:58,662 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:01:58,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2021-08-06 14:01:58,662 INFO L402 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:01:58,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:01:58,662 INFO L82 PathProgramCache]: Analyzing trace with hash 646774425, now seen corresponding path program 125 times [2021-08-06 14:01:58,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:01:58,663 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698798900] [2021-08-06 14:01:58,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:01:58,663 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:01:58,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:01:59,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:01:59,439 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:01:59,439 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698798900] [2021-08-06 14:01:59,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698798900] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:01:59,439 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:01:59,439 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:01:59,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502113421] [2021-08-06 14:01:59,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:01:59,440 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:01:59,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:01:59,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:01:59,440 INFO L87 Difference]: Start difference. First operand 3094 states and 8189 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:02:03,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:02:03,760 INFO L93 Difference]: Finished difference Result 8588 states and 21685 transitions. [2021-08-06 14:02:03,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-06 14:02:03,760 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:02:03,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:02:03,773 INFO L225 Difference]: With dead ends: 8588 [2021-08-06 14:02:03,773 INFO L226 Difference]: Without dead ends: 8588 [2021-08-06 14:02:03,774 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 3635.9ms TimeCoverageRelationStatistics Valid=620, Invalid=1732, Unknown=0, NotChecked=0, Total=2352 [2021-08-06 14:02:03,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8588 states. [2021-08-06 14:02:03,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8588 to 3070. [2021-08-06 14:02:03,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3070 states, 3068 states have (on average 2.645697522816167) internal successors, (8117), 3069 states have internal predecessors, (8117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:02:03,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3070 states to 3070 states and 8117 transitions. [2021-08-06 14:02:03,847 INFO L78 Accepts]: Start accepts. Automaton has 3070 states and 8117 transitions. Word has length 94 [2021-08-06 14:02:03,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:02:03,847 INFO L470 AbstractCegarLoop]: Abstraction has 3070 states and 8117 transitions. [2021-08-06 14:02:03,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:02:03,848 INFO L276 IsEmpty]: Start isEmpty. Operand 3070 states and 8117 transitions. [2021-08-06 14:02:03,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:02:03,851 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:02:03,851 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:02:03,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2021-08-06 14:02:03,851 INFO L402 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:02:03,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:02:03,851 INFO L82 PathProgramCache]: Analyzing trace with hash 756589973, now seen corresponding path program 126 times [2021-08-06 14:02:03,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:02:03,851 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359400918] [2021-08-06 14:02:03,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:02:03,852 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:02:03,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:02:04,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:02:04,603 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:02:04,603 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359400918] [2021-08-06 14:02:04,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359400918] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:02:04,603 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:02:04,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:02:04,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728479630] [2021-08-06 14:02:04,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:02:04,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:02:04,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:02:04,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:02:04,604 INFO L87 Difference]: Start difference. First operand 3070 states and 8117 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:02:07,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:02:07,913 INFO L93 Difference]: Finished difference Result 6723 states and 16931 transitions. [2021-08-06 14:02:07,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-06 14:02:07,913 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:02:07,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:02:07,923 INFO L225 Difference]: With dead ends: 6723 [2021-08-06 14:02:07,923 INFO L226 Difference]: Without dead ends: 6723 [2021-08-06 14:02:07,924 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 2808.2ms TimeCoverageRelationStatistics Valid=494, Invalid=1576, Unknown=0, NotChecked=0, Total=2070 [2021-08-06 14:02:07,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6723 states. [2021-08-06 14:02:07,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6723 to 3080. [2021-08-06 14:02:07,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3080 states, 3078 states have (on average 2.645224171539961) internal successors, (8142), 3079 states have internal predecessors, (8142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:02:07,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3080 states to 3080 states and 8142 transitions. [2021-08-06 14:02:07,983 INFO L78 Accepts]: Start accepts. Automaton has 3080 states and 8142 transitions. Word has length 94 [2021-08-06 14:02:07,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:02:07,983 INFO L470 AbstractCegarLoop]: Abstraction has 3080 states and 8142 transitions. [2021-08-06 14:02:07,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:02:07,983 INFO L276 IsEmpty]: Start isEmpty. Operand 3080 states and 8142 transitions. [2021-08-06 14:02:07,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:02:07,987 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:02:07,987 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:02:07,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2021-08-06 14:02:07,987 INFO L402 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:02:07,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:02:07,987 INFO L82 PathProgramCache]: Analyzing trace with hash 1328408547, now seen corresponding path program 127 times [2021-08-06 14:02:07,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:02:07,987 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626950514] [2021-08-06 14:02:07,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:02:07,987 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:02:08,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:02:08,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:02:08,758 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:02:08,758 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626950514] [2021-08-06 14:02:08,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626950514] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:02:08,758 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:02:08,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:02:08,758 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590007242] [2021-08-06 14:02:08,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:02:08,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:02:08,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:02:08,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:02:08,759 INFO L87 Difference]: Start difference. First operand 3080 states and 8142 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:02:12,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:02:12,263 INFO L93 Difference]: Finished difference Result 6952 states and 17378 transitions. [2021-08-06 14:02:12,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-08-06 14:02:12,264 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:02:12,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:02:12,273 INFO L225 Difference]: With dead ends: 6952 [2021-08-06 14:02:12,273 INFO L226 Difference]: Without dead ends: 6952 [2021-08-06 14:02:12,273 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 3043.7ms TimeCoverageRelationStatistics Valid=527, Invalid=1635, Unknown=0, NotChecked=0, Total=2162 [2021-08-06 14:02:12,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6952 states. [2021-08-06 14:02:12,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6952 to 3078. [2021-08-06 14:02:12,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3078 states, 3076 states have (on average 2.6453185955786735) internal successors, (8137), 3077 states have internal predecessors, (8137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:02:12,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3078 states to 3078 states and 8137 transitions. [2021-08-06 14:02:12,341 INFO L78 Accepts]: Start accepts. Automaton has 3078 states and 8137 transitions. Word has length 94 [2021-08-06 14:02:12,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:02:12,342 INFO L470 AbstractCegarLoop]: Abstraction has 3078 states and 8137 transitions. [2021-08-06 14:02:12,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:02:12,342 INFO L276 IsEmpty]: Start isEmpty. Operand 3078 states and 8137 transitions. [2021-08-06 14:02:12,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:02:12,345 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:02:12,345 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:02:12,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2021-08-06 14:02:12,345 INFO L402 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:02:12,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:02:12,346 INFO L82 PathProgramCache]: Analyzing trace with hash 767763161, now seen corresponding path program 128 times [2021-08-06 14:02:12,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:02:12,346 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641041310] [2021-08-06 14:02:12,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:02:12,346 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:02:12,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:02:13,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:02:13,075 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:02:13,076 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641041310] [2021-08-06 14:02:13,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641041310] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:02:13,076 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:02:13,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:02:13,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403135134] [2021-08-06 14:02:13,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:02:13,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:02:13,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:02:13,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:02:13,077 INFO L87 Difference]: Start difference. First operand 3078 states and 8137 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:02:16,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:02:16,911 INFO L93 Difference]: Finished difference Result 7003 states and 17492 transitions. [2021-08-06 14:02:16,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-08-06 14:02:16,911 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:02:16,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:02:16,921 INFO L225 Difference]: With dead ends: 7003 [2021-08-06 14:02:16,921 INFO L226 Difference]: Without dead ends: 7003 [2021-08-06 14:02:16,921 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 3209.2ms TimeCoverageRelationStatistics Valid=559, Invalid=1697, Unknown=0, NotChecked=0, Total=2256 [2021-08-06 14:02:16,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7003 states. [2021-08-06 14:02:16,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7003 to 3074. [2021-08-06 14:02:16,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3074 states, 3072 states have (on average 2.6455078125) internal successors, (8127), 3073 states have internal predecessors, (8127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:02:16,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3074 states to 3074 states and 8127 transitions. [2021-08-06 14:02:16,979 INFO L78 Accepts]: Start accepts. Automaton has 3074 states and 8127 transitions. Word has length 94 [2021-08-06 14:02:16,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:02:16,979 INFO L470 AbstractCegarLoop]: Abstraction has 3074 states and 8127 transitions. [2021-08-06 14:02:16,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:02:16,979 INFO L276 IsEmpty]: Start isEmpty. Operand 3074 states and 8127 transitions. [2021-08-06 14:02:16,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:02:16,983 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:02:16,983 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:02:16,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2021-08-06 14:02:16,983 INFO L402 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:02:16,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:02:16,983 INFO L82 PathProgramCache]: Analyzing trace with hash 245238779, now seen corresponding path program 129 times [2021-08-06 14:02:16,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:02:16,983 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383356759] [2021-08-06 14:02:16,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:02:16,984 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:02:17,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:02:17,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:02:17,742 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:02:17,742 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383356759] [2021-08-06 14:02:17,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383356759] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:02:17,742 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:02:17,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:02:17,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763170674] [2021-08-06 14:02:17,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:02:17,742 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:02:17,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:02:17,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:02:17,743 INFO L87 Difference]: Start difference. First operand 3074 states and 8127 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:02:21,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:02:21,672 INFO L93 Difference]: Finished difference Result 7054 states and 17606 transitions. [2021-08-06 14:02:21,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-06 14:02:21,672 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:02:21,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:02:21,681 INFO L225 Difference]: With dead ends: 7054 [2021-08-06 14:02:21,682 INFO L226 Difference]: Without dead ends: 7054 [2021-08-06 14:02:21,682 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 3326.8ms TimeCoverageRelationStatistics Valid=590, Invalid=1762, Unknown=0, NotChecked=0, Total=2352 [2021-08-06 14:02:21,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7054 states. [2021-08-06 14:02:21,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7054 to 3072. [2021-08-06 14:02:21,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3072 states, 3070 states have (on average 2.6456026058631923) internal successors, (8122), 3071 states have internal predecessors, (8122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:02:21,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3072 states to 3072 states and 8122 transitions. [2021-08-06 14:02:21,733 INFO L78 Accepts]: Start accepts. Automaton has 3072 states and 8122 transitions. Word has length 94 [2021-08-06 14:02:21,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:02:21,733 INFO L470 AbstractCegarLoop]: Abstraction has 3072 states and 8122 transitions. [2021-08-06 14:02:21,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:02:21,734 INFO L276 IsEmpty]: Start isEmpty. Operand 3072 states and 8122 transitions. [2021-08-06 14:02:21,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:02:21,736 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:02:21,736 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:02:21,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2021-08-06 14:02:21,737 INFO L402 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:02:21,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:02:21,737 INFO L82 PathProgramCache]: Analyzing trace with hash -2071036513, now seen corresponding path program 130 times [2021-08-06 14:02:21,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:02:21,737 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254058982] [2021-08-06 14:02:21,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:02:21,737 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:02:21,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:02:22,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:02:22,486 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:02:22,486 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254058982] [2021-08-06 14:02:22,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254058982] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:02:22,486 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:02:22,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:02:22,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736389913] [2021-08-06 14:02:22,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:02:22,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:02:22,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:02:22,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:02:22,487 INFO L87 Difference]: Start difference. First operand 3072 states and 8122 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:02:26,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:02:26,479 INFO L93 Difference]: Finished difference Result 6761 states and 17017 transitions. [2021-08-06 14:02:26,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-08-06 14:02:26,479 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:02:26,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:02:26,488 INFO L225 Difference]: With dead ends: 6761 [2021-08-06 14:02:26,488 INFO L226 Difference]: Without dead ends: 6761 [2021-08-06 14:02:26,488 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 3434.4ms TimeCoverageRelationStatistics Valid=620, Invalid=1830, Unknown=0, NotChecked=0, Total=2450 [2021-08-06 14:02:26,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6761 states. [2021-08-06 14:02:26,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6761 to 3070. [2021-08-06 14:02:26,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3070 states, 3068 states have (on average 2.645697522816167) internal successors, (8117), 3069 states have internal predecessors, (8117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:02:26,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3070 states to 3070 states and 8117 transitions. [2021-08-06 14:02:26,540 INFO L78 Accepts]: Start accepts. Automaton has 3070 states and 8117 transitions. Word has length 94 [2021-08-06 14:02:26,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:02:26,540 INFO L470 AbstractCegarLoop]: Abstraction has 3070 states and 8117 transitions. [2021-08-06 14:02:26,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:02:26,541 INFO L276 IsEmpty]: Start isEmpty. Operand 3070 states and 8117 transitions. [2021-08-06 14:02:26,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:02:26,544 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:02:26,544 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:02:26,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2021-08-06 14:02:26,544 INFO L402 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:02:26,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:02:26,544 INFO L82 PathProgramCache]: Analyzing trace with hash -1708138347, now seen corresponding path program 131 times [2021-08-06 14:02:26,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:02:26,544 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201211585] [2021-08-06 14:02:26,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:02:26,544 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:02:26,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:02:27,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:02:27,321 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:02:27,321 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201211585] [2021-08-06 14:02:27,321 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201211585] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:02:27,321 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:02:27,321 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:02:27,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162260691] [2021-08-06 14:02:27,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:02:27,322 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:02:27,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:02:27,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:02:27,322 INFO L87 Difference]: Start difference. First operand 3070 states and 8117 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:02:33,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:02:33,476 INFO L93 Difference]: Finished difference Result 7334 states and 18511 transitions. [2021-08-06 14:02:33,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-08-06 14:02:33,477 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:02:33,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:02:33,486 INFO L225 Difference]: With dead ends: 7334 [2021-08-06 14:02:33,486 INFO L226 Difference]: Without dead ends: 7334 [2021-08-06 14:02:33,486 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 364 ImplicationChecksByTransitivity, 5288.1ms TimeCoverageRelationStatistics Valid=935, Invalid=2371, Unknown=0, NotChecked=0, Total=3306 [2021-08-06 14:02:33,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7334 states. [2021-08-06 14:02:33,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7334 to 3130. [2021-08-06 14:02:33,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3130 states, 3128 states have (on average 2.6524936061381075) internal successors, (8297), 3129 states have internal predecessors, (8297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:02:33,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3130 states to 3130 states and 8297 transitions. [2021-08-06 14:02:33,536 INFO L78 Accepts]: Start accepts. Automaton has 3130 states and 8297 transitions. Word has length 94 [2021-08-06 14:02:33,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:02:33,536 INFO L470 AbstractCegarLoop]: Abstraction has 3130 states and 8297 transitions. [2021-08-06 14:02:33,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:02:33,537 INFO L276 IsEmpty]: Start isEmpty. Operand 3130 states and 8297 transitions. [2021-08-06 14:02:33,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:02:33,540 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:02:33,540 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:02:33,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2021-08-06 14:02:33,540 INFO L402 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:02:33,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:02:33,540 INFO L82 PathProgramCache]: Analyzing trace with hash 1984828141, now seen corresponding path program 132 times [2021-08-06 14:02:33,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:02:33,541 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375551570] [2021-08-06 14:02:33,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:02:33,541 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:02:33,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:02:34,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:02:34,288 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:02:34,288 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375551570] [2021-08-06 14:02:34,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375551570] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:02:34,288 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:02:34,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:02:34,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369319102] [2021-08-06 14:02:34,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:02:34,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:02:34,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:02:34,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:02:34,289 INFO L87 Difference]: Start difference. First operand 3130 states and 8297 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:02:40,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:02:40,361 INFO L93 Difference]: Finished difference Result 7543 states and 18866 transitions. [2021-08-06 14:02:40,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-08-06 14:02:40,361 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:02:40,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:02:40,371 INFO L225 Difference]: With dead ends: 7543 [2021-08-06 14:02:40,371 INFO L226 Difference]: Without dead ends: 7543 [2021-08-06 14:02:40,371 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 381 ImplicationChecksByTransitivity, 5098.3ms TimeCoverageRelationStatistics Valid=917, Invalid=2389, Unknown=0, NotChecked=0, Total=3306 [2021-08-06 14:02:40,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7543 states. [2021-08-06 14:02:40,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7543 to 3118. [2021-08-06 14:02:40,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3118 states, 3116 states have (on average 2.6511553273427473) internal successors, (8261), 3117 states have internal predecessors, (8261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:02:40,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3118 states to 3118 states and 8261 transitions. [2021-08-06 14:02:40,423 INFO L78 Accepts]: Start accepts. Automaton has 3118 states and 8261 transitions. Word has length 94 [2021-08-06 14:02:40,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:02:40,423 INFO L470 AbstractCegarLoop]: Abstraction has 3118 states and 8261 transitions. [2021-08-06 14:02:40,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:02:40,424 INFO L276 IsEmpty]: Start isEmpty. Operand 3118 states and 8261 transitions. [2021-08-06 14:02:40,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:02:40,427 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:02:40,427 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:02:40,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2021-08-06 14:02:40,427 INFO L402 AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:02:40,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:02:40,428 INFO L82 PathProgramCache]: Analyzing trace with hash 611410009, now seen corresponding path program 133 times [2021-08-06 14:02:40,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:02:40,428 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248195893] [2021-08-06 14:02:40,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:02:40,428 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:02:40,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:02:41,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:02:41,159 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:02:41,159 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248195893] [2021-08-06 14:02:41,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248195893] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:02:41,159 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:02:41,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:02:41,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592310829] [2021-08-06 14:02:41,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:02:41,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:02:41,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:02:41,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:02:41,160 INFO L87 Difference]: Start difference. First operand 3118 states and 8261 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:02:46,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:02:46,951 INFO L93 Difference]: Finished difference Result 7572 states and 18934 transitions. [2021-08-06 14:02:46,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-08-06 14:02:46,952 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:02:46,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:02:46,963 INFO L225 Difference]: With dead ends: 7572 [2021-08-06 14:02:46,963 INFO L226 Difference]: Without dead ends: 7572 [2021-08-06 14:02:46,964 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 376 ImplicationChecksByTransitivity, 4821.6ms TimeCoverageRelationStatistics Valid=868, Invalid=2324, Unknown=0, NotChecked=0, Total=3192 [2021-08-06 14:02:46,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7572 states. [2021-08-06 14:02:47,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7572 to 3094. [2021-08-06 14:02:47,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3094 states, 3092 states have (on average 2.6484476067270375) internal successors, (8189), 3093 states have internal predecessors, (8189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:02:47,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3094 states to 3094 states and 8189 transitions. [2021-08-06 14:02:47,030 INFO L78 Accepts]: Start accepts. Automaton has 3094 states and 8189 transitions. Word has length 94 [2021-08-06 14:02:47,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:02:47,031 INFO L470 AbstractCegarLoop]: Abstraction has 3094 states and 8189 transitions. [2021-08-06 14:02:47,031 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:02:47,031 INFO L276 IsEmpty]: Start isEmpty. Operand 3094 states and 8189 transitions. [2021-08-06 14:02:47,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:02:47,035 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:02:47,035 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:02:47,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2021-08-06 14:02:47,035 INFO L402 AbstractCegarLoop]: === Iteration 137 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:02:47,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:02:47,036 INFO L82 PathProgramCache]: Analyzing trace with hash 1272173243, now seen corresponding path program 134 times [2021-08-06 14:02:47,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:02:47,036 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931790892] [2021-08-06 14:02:47,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:02:47,036 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:02:47,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:02:47,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:02:47,818 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:02:47,818 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931790892] [2021-08-06 14:02:47,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931790892] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:02:47,818 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:02:47,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:02:47,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22153329] [2021-08-06 14:02:47,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:02:47,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:02:47,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:02:47,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:02:47,819 INFO L87 Difference]: Start difference. First operand 3094 states and 8189 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:02:53,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:02:53,161 INFO L93 Difference]: Finished difference Result 7612 states and 19025 transitions. [2021-08-06 14:02:53,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-08-06 14:02:53,161 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:02:53,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:02:53,170 INFO L225 Difference]: With dead ends: 7612 [2021-08-06 14:02:53,170 INFO L226 Difference]: Without dead ends: 7612 [2021-08-06 14:02:53,170 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 4520.5ms TimeCoverageRelationStatistics Valid=821, Invalid=2259, Unknown=0, NotChecked=0, Total=3080 [2021-08-06 14:02:53,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7612 states. [2021-08-06 14:02:53,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7612 to 3082. [2021-08-06 14:02:53,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3082 states, 3080 states have (on average 2.647077922077922) internal successors, (8153), 3081 states have internal predecessors, (8153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:02:53,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3082 states to 3082 states and 8153 transitions. [2021-08-06 14:02:53,235 INFO L78 Accepts]: Start accepts. Automaton has 3082 states and 8153 transitions. Word has length 94 [2021-08-06 14:02:53,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:02:53,236 INFO L470 AbstractCegarLoop]: Abstraction has 3082 states and 8153 transitions. [2021-08-06 14:02:53,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:02:53,236 INFO L276 IsEmpty]: Start isEmpty. Operand 3082 states and 8153 transitions. [2021-08-06 14:02:53,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:02:53,239 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:02:53,239 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:02:53,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2021-08-06 14:02:53,239 INFO L402 AbstractCegarLoop]: === Iteration 138 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:02:53,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:02:53,240 INFO L82 PathProgramCache]: Analyzing trace with hash 668636713, now seen corresponding path program 135 times [2021-08-06 14:02:53,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:02:53,240 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288672691] [2021-08-06 14:02:53,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:02:53,240 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:02:53,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:02:53,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:02:53,984 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:02:53,984 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288672691] [2021-08-06 14:02:53,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288672691] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:02:53,984 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:02:53,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:02:53,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655924692] [2021-08-06 14:02:53,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:02:53,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:02:53,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:02:53,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:02:53,985 INFO L87 Difference]: Start difference. First operand 3082 states and 8153 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:02:57,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:02:57,906 INFO L93 Difference]: Finished difference Result 6141 states and 15463 transitions. [2021-08-06 14:02:57,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-08-06 14:02:57,906 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:02:57,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:02:57,913 INFO L225 Difference]: With dead ends: 6141 [2021-08-06 14:02:57,913 INFO L226 Difference]: Without dead ends: 6141 [2021-08-06 14:02:57,913 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 3271.6ms TimeCoverageRelationStatistics Valid=635, Invalid=1815, Unknown=0, NotChecked=0, Total=2450 [2021-08-06 14:02:57,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6141 states. [2021-08-06 14:02:57,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6141 to 3058. [2021-08-06 14:02:57,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3058 states, 3056 states have (on average 2.6443062827225132) internal successors, (8081), 3057 states have internal predecessors, (8081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:02:57,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3058 states to 3058 states and 8081 transitions. [2021-08-06 14:02:57,951 INFO L78 Accepts]: Start accepts. Automaton has 3058 states and 8081 transitions. Word has length 94 [2021-08-06 14:02:57,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:02:57,951 INFO L470 AbstractCegarLoop]: Abstraction has 3058 states and 8081 transitions. [2021-08-06 14:02:57,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:02:57,951 INFO L276 IsEmpty]: Start isEmpty. Operand 3058 states and 8081 transitions. [2021-08-06 14:02:57,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:02:57,953 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:02:57,953 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:02:57,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2021-08-06 14:02:57,954 INFO L402 AbstractCegarLoop]: === Iteration 139 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:02:57,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:02:57,954 INFO L82 PathProgramCache]: Analyzing trace with hash 184924073, now seen corresponding path program 136 times [2021-08-06 14:02:57,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:02:57,954 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566985946] [2021-08-06 14:02:57,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:02:57,954 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:02:57,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:02:58,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:02:58,647 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:02:58,647 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566985946] [2021-08-06 14:02:58,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566985946] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:02:58,647 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:02:58,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:02:58,647 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541821264] [2021-08-06 14:02:58,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:02:58,648 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:02:58,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:02:58,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:02:58,648 INFO L87 Difference]: Start difference. First operand 3058 states and 8081 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:03:01,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:03:01,379 INFO L93 Difference]: Finished difference Result 4611 states and 11569 transitions. [2021-08-06 14:03:01,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-06 14:03:01,380 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:03:01,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:03:01,385 INFO L225 Difference]: With dead ends: 4611 [2021-08-06 14:03:01,385 INFO L226 Difference]: Without dead ends: 4611 [2021-08-06 14:03:01,386 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 2354.0ms TimeCoverageRelationStatistics Valid=479, Invalid=1591, Unknown=0, NotChecked=0, Total=2070 [2021-08-06 14:03:01,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4611 states. [2021-08-06 14:03:01,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4611 to 3078. [2021-08-06 14:03:01,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3078 states, 3076 states have (on average 2.6433680104031207) internal successors, (8131), 3077 states have internal predecessors, (8131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:03:01,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3078 states to 3078 states and 8131 transitions. [2021-08-06 14:03:01,427 INFO L78 Accepts]: Start accepts. Automaton has 3078 states and 8131 transitions. Word has length 94 [2021-08-06 14:03:01,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:03:01,428 INFO L470 AbstractCegarLoop]: Abstraction has 3078 states and 8131 transitions. [2021-08-06 14:03:01,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:03:01,428 INFO L276 IsEmpty]: Start isEmpty. Operand 3078 states and 8131 transitions. [2021-08-06 14:03:01,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:03:01,431 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:03:01,431 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:03:01,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2021-08-06 14:03:01,431 INFO L402 AbstractCegarLoop]: === Iteration 140 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:03:01,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:03:01,432 INFO L82 PathProgramCache]: Analyzing trace with hash 125894201, now seen corresponding path program 137 times [2021-08-06 14:03:01,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:03:01,432 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490060665] [2021-08-06 14:03:01,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:03:01,432 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:03:01,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:03:02,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:03:02,143 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:03:02,143 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490060665] [2021-08-06 14:03:02,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490060665] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:03:02,143 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:03:02,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:03:02,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722276606] [2021-08-06 14:03:02,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:03:02,143 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:03:02,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:03:02,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:03:02,144 INFO L87 Difference]: Start difference. First operand 3078 states and 8131 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:03:05,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:03:05,006 INFO L93 Difference]: Finished difference Result 5018 states and 12378 transitions. [2021-08-06 14:03:05,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-06 14:03:05,007 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:03:05,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:03:05,014 INFO L225 Difference]: With dead ends: 5018 [2021-08-06 14:03:05,014 INFO L226 Difference]: Without dead ends: 5018 [2021-08-06 14:03:05,015 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 2379.8ms TimeCoverageRelationStatistics Valid=479, Invalid=1591, Unknown=0, NotChecked=0, Total=2070 [2021-08-06 14:03:05,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2021-08-06 14:03:05,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 3080. [2021-08-06 14:03:05,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3080 states, 3078 states have (on average 2.6432748538011697) internal successors, (8136), 3079 states have internal predecessors, (8136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:03:05,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3080 states to 3080 states and 8136 transitions. [2021-08-06 14:03:05,074 INFO L78 Accepts]: Start accepts. Automaton has 3080 states and 8136 transitions. Word has length 94 [2021-08-06 14:03:05,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:03:05,074 INFO L470 AbstractCegarLoop]: Abstraction has 3080 states and 8136 transitions. [2021-08-06 14:03:05,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:03:05,074 INFO L276 IsEmpty]: Start isEmpty. Operand 3080 states and 8136 transitions. [2021-08-06 14:03:05,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:03:05,078 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:03:05,078 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:03:05,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2021-08-06 14:03:05,078 INFO L402 AbstractCegarLoop]: === Iteration 141 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:03:05,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:03:05,078 INFO L82 PathProgramCache]: Analyzing trace with hash 697712775, now seen corresponding path program 138 times [2021-08-06 14:03:05,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:03:05,078 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438310496] [2021-08-06 14:03:05,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:03:05,079 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:03:05,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:03:05,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:03:05,770 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:03:05,770 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438310496] [2021-08-06 14:03:05,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438310496] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:03:05,770 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:03:05,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:03:05,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581651336] [2021-08-06 14:03:05,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:03:05,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:03:05,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:03:05,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:03:05,771 INFO L87 Difference]: Start difference. First operand 3080 states and 8136 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:03:09,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:03:09,005 INFO L93 Difference]: Finished difference Result 4842 states and 12021 transitions. [2021-08-06 14:03:09,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-08-06 14:03:09,005 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:03:09,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:03:09,011 INFO L225 Difference]: With dead ends: 4842 [2021-08-06 14:03:09,012 INFO L226 Difference]: Without dead ends: 4842 [2021-08-06 14:03:09,012 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 2723.7ms TimeCoverageRelationStatistics Valid=512, Invalid=1650, Unknown=0, NotChecked=0, Total=2162 [2021-08-06 14:03:09,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4842 states. [2021-08-06 14:03:09,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4842 to 3074. [2021-08-06 14:03:09,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3074 states, 3072 states have (on average 2.6435546875) internal successors, (8121), 3073 states have internal predecessors, (8121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:03:09,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3074 states to 3074 states and 8121 transitions. [2021-08-06 14:03:09,060 INFO L78 Accepts]: Start accepts. Automaton has 3074 states and 8121 transitions. Word has length 94 [2021-08-06 14:03:09,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:03:09,060 INFO L470 AbstractCegarLoop]: Abstraction has 3074 states and 8121 transitions. [2021-08-06 14:03:09,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:03:09,060 INFO L276 IsEmpty]: Start isEmpty. Operand 3074 states and 8121 transitions. [2021-08-06 14:03:09,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:03:09,064 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:03:09,064 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:03:09,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2021-08-06 14:03:09,064 INFO L402 AbstractCegarLoop]: === Iteration 142 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:03:09,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:03:09,065 INFO L82 PathProgramCache]: Analyzing trace with hash -2008307099, now seen corresponding path program 139 times [2021-08-06 14:03:09,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:03:09,065 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062798268] [2021-08-06 14:03:09,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:03:09,065 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:03:09,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:03:09,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:03:09,835 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:03:09,835 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062798268] [2021-08-06 14:03:09,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062798268] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:03:09,835 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:03:09,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:03:09,835 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873449058] [2021-08-06 14:03:09,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:03:09,835 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:03:09,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:03:09,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:03:09,836 INFO L87 Difference]: Start difference. First operand 3074 states and 8121 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:03:12,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:03:12,921 INFO L93 Difference]: Finished difference Result 5075 states and 12507 transitions. [2021-08-06 14:03:12,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-06 14:03:12,922 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:03:12,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:03:12,927 INFO L225 Difference]: With dead ends: 5075 [2021-08-06 14:03:12,928 INFO L226 Difference]: Without dead ends: 5075 [2021-08-06 14:03:12,928 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 2601.1ms TimeCoverageRelationStatistics Valid=479, Invalid=1591, Unknown=0, NotChecked=0, Total=2070 [2021-08-06 14:03:12,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5075 states. [2021-08-06 14:03:12,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5075 to 3080. [2021-08-06 14:03:12,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3080 states, 3078 states have (on average 2.6432748538011697) internal successors, (8136), 3079 states have internal predecessors, (8136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:03:12,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3080 states to 3080 states and 8136 transitions. [2021-08-06 14:03:12,980 INFO L78 Accepts]: Start accepts. Automaton has 3080 states and 8136 transitions. Word has length 94 [2021-08-06 14:03:12,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:03:12,980 INFO L470 AbstractCegarLoop]: Abstraction has 3080 states and 8136 transitions. [2021-08-06 14:03:12,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:03:12,980 INFO L276 IsEmpty]: Start isEmpty. Operand 3080 states and 8136 transitions. [2021-08-06 14:03:12,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:03:12,984 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:03:12,984 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:03:12,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2021-08-06 14:03:12,984 INFO L402 AbstractCegarLoop]: === Iteration 143 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:03:12,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:03:12,984 INFO L82 PathProgramCache]: Analyzing trace with hash -1436488525, now seen corresponding path program 140 times [2021-08-06 14:03:12,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:03:12,985 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007232435] [2021-08-06 14:03:12,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:03:12,985 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:03:13,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:03:13,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:03:13,714 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:03:13,714 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007232435] [2021-08-06 14:03:13,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007232435] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:03:13,715 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:03:13,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:03:13,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204229853] [2021-08-06 14:03:13,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:03:13,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:03:13,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:03:13,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:03:13,716 INFO L87 Difference]: Start difference. First operand 3080 states and 8136 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:03:16,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:03:16,849 INFO L93 Difference]: Finished difference Result 5304 states and 12954 transitions. [2021-08-06 14:03:16,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-08-06 14:03:16,849 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:03:16,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:03:16,856 INFO L225 Difference]: With dead ends: 5304 [2021-08-06 14:03:16,856 INFO L226 Difference]: Without dead ends: 5304 [2021-08-06 14:03:16,856 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 2690.1ms TimeCoverageRelationStatistics Valid=512, Invalid=1650, Unknown=0, NotChecked=0, Total=2162 [2021-08-06 14:03:16,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5304 states. [2021-08-06 14:03:16,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5304 to 3078. [2021-08-06 14:03:16,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3078 states, 3076 states have (on average 2.6433680104031207) internal successors, (8131), 3077 states have internal predecessors, (8131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:03:16,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3078 states to 3078 states and 8131 transitions. [2021-08-06 14:03:16,896 INFO L78 Accepts]: Start accepts. Automaton has 3078 states and 8131 transitions. Word has length 94 [2021-08-06 14:03:16,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:03:16,896 INFO L470 AbstractCegarLoop]: Abstraction has 3078 states and 8131 transitions. [2021-08-06 14:03:16,896 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:03:16,896 INFO L276 IsEmpty]: Start isEmpty. Operand 3078 states and 8131 transitions. [2021-08-06 14:03:16,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:03:16,899 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:03:16,899 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:03:16,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2021-08-06 14:03:16,899 INFO L402 AbstractCegarLoop]: === Iteration 144 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:03:16,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:03:16,899 INFO L82 PathProgramCache]: Analyzing trace with hash -1997133911, now seen corresponding path program 141 times [2021-08-06 14:03:16,899 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:03:16,899 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816953820] [2021-08-06 14:03:16,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:03:16,900 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:03:16,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:03:17,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:03:17,569 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:03:17,569 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816953820] [2021-08-06 14:03:17,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816953820] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:03:17,569 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:03:17,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:03:17,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737275206] [2021-08-06 14:03:17,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:03:17,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:03:17,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:03:17,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:03:17,570 INFO L87 Difference]: Start difference. First operand 3078 states and 8131 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:03:20,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:03:20,676 INFO L93 Difference]: Finished difference Result 4897 states and 12145 transitions. [2021-08-06 14:03:20,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-08-06 14:03:20,676 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:03:20,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:03:20,682 INFO L225 Difference]: With dead ends: 4897 [2021-08-06 14:03:20,682 INFO L226 Difference]: Without dead ends: 4897 [2021-08-06 14:03:20,682 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 2674.2ms TimeCoverageRelationStatistics Valid=544, Invalid=1712, Unknown=0, NotChecked=0, Total=2256 [2021-08-06 14:03:20,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4897 states. [2021-08-06 14:03:20,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4897 to 3066. [2021-08-06 14:03:20,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3066 states, 3064 states have (on average 2.643929503916449) internal successors, (8101), 3065 states have internal predecessors, (8101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:03:20,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3066 states to 3066 states and 8101 transitions. [2021-08-06 14:03:20,719 INFO L78 Accepts]: Start accepts. Automaton has 3066 states and 8101 transitions. Word has length 94 [2021-08-06 14:03:20,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:03:20,719 INFO L470 AbstractCegarLoop]: Abstraction has 3066 states and 8101 transitions. [2021-08-06 14:03:20,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:03:20,719 INFO L276 IsEmpty]: Start isEmpty. Operand 3066 states and 8101 transitions. [2021-08-06 14:03:20,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:03:20,721 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:03:20,721 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:03:20,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2021-08-06 14:03:20,722 INFO L402 AbstractCegarLoop]: === Iteration 145 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:03:20,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:03:20,722 INFO L82 PathProgramCache]: Analyzing trace with hash 232677699, now seen corresponding path program 142 times [2021-08-06 14:03:20,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:03:20,722 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809915825] [2021-08-06 14:03:20,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:03:20,722 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:03:20,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:03:21,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:03:21,403 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:03:21,404 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809915825] [2021-08-06 14:03:21,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809915825] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:03:21,404 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:03:21,404 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:03:21,404 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158894798] [2021-08-06 14:03:21,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:03:21,404 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:03:21,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:03:21,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:03:21,405 INFO L87 Difference]: Start difference. First operand 3066 states and 8101 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:03:24,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:03:24,491 INFO L93 Difference]: Finished difference Result 5132 states and 12636 transitions. [2021-08-06 14:03:24,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-06 14:03:24,492 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:03:24,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:03:24,498 INFO L225 Difference]: With dead ends: 5132 [2021-08-06 14:03:24,498 INFO L226 Difference]: Without dead ends: 5132 [2021-08-06 14:03:24,498 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 2573.1ms TimeCoverageRelationStatistics Valid=479, Invalid=1591, Unknown=0, NotChecked=0, Total=2070 [2021-08-06 14:03:24,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5132 states. [2021-08-06 14:03:24,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5132 to 3074. [2021-08-06 14:03:24,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3074 states, 3072 states have (on average 2.6435546875) internal successors, (8121), 3073 states have internal predecessors, (8121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:03:24,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3074 states to 3074 states and 8121 transitions. [2021-08-06 14:03:24,547 INFO L78 Accepts]: Start accepts. Automaton has 3074 states and 8121 transitions. Word has length 94 [2021-08-06 14:03:24,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:03:24,547 INFO L470 AbstractCegarLoop]: Abstraction has 3074 states and 8121 transitions. [2021-08-06 14:03:24,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:03:24,547 INFO L276 IsEmpty]: Start isEmpty. Operand 3074 states and 8121 transitions. [2021-08-06 14:03:24,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:03:24,551 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:03:24,551 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:03:24,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2021-08-06 14:03:24,551 INFO L402 AbstractCegarLoop]: === Iteration 146 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:03:24,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:03:24,551 INFO L82 PathProgramCache]: Analyzing trace with hash 804496273, now seen corresponding path program 143 times [2021-08-06 14:03:24,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:03:24,551 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808086588] [2021-08-06 14:03:24,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:03:24,552 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:03:24,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:03:25,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:03:25,311 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:03:25,311 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808086588] [2021-08-06 14:03:25,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808086588] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:03:25,311 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:03:25,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:03:25,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572951898] [2021-08-06 14:03:25,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:03:25,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:03:25,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:03:25,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:03:25,313 INFO L87 Difference]: Start difference. First operand 3074 states and 8121 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:03:28,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:03:28,765 INFO L93 Difference]: Finished difference Result 5361 states and 13083 transitions. [2021-08-06 14:03:28,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-08-06 14:03:28,766 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:03:28,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:03:28,771 INFO L225 Difference]: With dead ends: 5361 [2021-08-06 14:03:28,772 INFO L226 Difference]: Without dead ends: 5361 [2021-08-06 14:03:28,772 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 2893.8ms TimeCoverageRelationStatistics Valid=512, Invalid=1650, Unknown=0, NotChecked=0, Total=2162 [2021-08-06 14:03:28,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5361 states. [2021-08-06 14:03:28,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5361 to 3072. [2021-08-06 14:03:28,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3072 states, 3070 states have (on average 2.6436482084690556) internal successors, (8116), 3071 states have internal predecessors, (8116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:03:28,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3072 states to 3072 states and 8116 transitions. [2021-08-06 14:03:28,815 INFO L78 Accepts]: Start accepts. Automaton has 3072 states and 8116 transitions. Word has length 94 [2021-08-06 14:03:28,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:03:28,815 INFO L470 AbstractCegarLoop]: Abstraction has 3072 states and 8116 transitions. [2021-08-06 14:03:28,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:03:28,815 INFO L276 IsEmpty]: Start isEmpty. Operand 3072 states and 8116 transitions. [2021-08-06 14:03:28,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:03:28,818 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:03:28,819 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:03:28,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2021-08-06 14:03:28,819 INFO L402 AbstractCegarLoop]: === Iteration 147 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:03:28,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:03:28,819 INFO L82 PathProgramCache]: Analyzing trace with hash 243850887, now seen corresponding path program 144 times [2021-08-06 14:03:28,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:03:28,819 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609064722] [2021-08-06 14:03:28,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:03:28,819 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:03:28,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:03:29,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:03:29,574 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:03:29,574 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609064722] [2021-08-06 14:03:29,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609064722] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:03:29,574 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:03:29,574 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:03:29,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173403846] [2021-08-06 14:03:29,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:03:29,574 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:03:29,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:03:29,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:03:29,575 INFO L87 Difference]: Start difference. First operand 3072 states and 8116 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:03:32,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:03:32,910 INFO L93 Difference]: Finished difference Result 5412 states and 13197 transitions. [2021-08-06 14:03:32,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-08-06 14:03:32,910 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:03:32,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:03:32,916 INFO L225 Difference]: With dead ends: 5412 [2021-08-06 14:03:32,917 INFO L226 Difference]: Without dead ends: 5412 [2021-08-06 14:03:32,917 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 2835.5ms TimeCoverageRelationStatistics Valid=544, Invalid=1712, Unknown=0, NotChecked=0, Total=2256 [2021-08-06 14:03:32,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5412 states. [2021-08-06 14:03:32,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5412 to 3068. [2021-08-06 14:03:32,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3068 states, 3066 states have (on average 2.643835616438356) internal successors, (8106), 3067 states have internal predecessors, (8106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:03:32,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3068 states to 3068 states and 8106 transitions. [2021-08-06 14:03:32,962 INFO L78 Accepts]: Start accepts. Automaton has 3068 states and 8106 transitions. Word has length 94 [2021-08-06 14:03:32,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:03:32,962 INFO L470 AbstractCegarLoop]: Abstraction has 3068 states and 8106 transitions. [2021-08-06 14:03:32,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:03:32,962 INFO L276 IsEmpty]: Start isEmpty. Operand 3068 states and 8106 transitions. [2021-08-06 14:03:32,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:03:32,965 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:03:32,965 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:03:32,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2021-08-06 14:03:32,965 INFO L402 AbstractCegarLoop]: === Iteration 148 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:03:32,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:03:32,965 INFO L82 PathProgramCache]: Analyzing trace with hash -278673495, now seen corresponding path program 145 times [2021-08-06 14:03:32,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:03:32,966 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226868101] [2021-08-06 14:03:32,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:03:32,966 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:03:32,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:03:33,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:03:33,652 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:03:33,652 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226868101] [2021-08-06 14:03:33,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226868101] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:03:33,652 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:03:33,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:03:33,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115508581] [2021-08-06 14:03:33,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:03:33,652 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:03:33,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:03:33,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:03:33,653 INFO L87 Difference]: Start difference. First operand 3068 states and 8106 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:03:37,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:03:37,010 INFO L93 Difference]: Finished difference Result 4950 states and 12264 transitions. [2021-08-06 14:03:37,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-06 14:03:37,011 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:03:37,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:03:37,016 INFO L225 Difference]: With dead ends: 4950 [2021-08-06 14:03:37,016 INFO L226 Difference]: Without dead ends: 4950 [2021-08-06 14:03:37,016 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 2887.2ms TimeCoverageRelationStatistics Valid=575, Invalid=1777, Unknown=0, NotChecked=0, Total=2352 [2021-08-06 14:03:37,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4950 states. [2021-08-06 14:03:37,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4950 to 3062. [2021-08-06 14:03:37,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3062 states, 3060 states have (on average 2.6441176470588235) internal successors, (8091), 3061 states have internal predecessors, (8091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:03:37,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3062 states to 3062 states and 8091 transitions. [2021-08-06 14:03:37,049 INFO L78 Accepts]: Start accepts. Automaton has 3062 states and 8091 transitions. Word has length 94 [2021-08-06 14:03:37,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:03:37,049 INFO L470 AbstractCegarLoop]: Abstraction has 3062 states and 8091 transitions. [2021-08-06 14:03:37,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:03:37,050 INFO L276 IsEmpty]: Start isEmpty. Operand 3062 states and 8091 transitions. [2021-08-06 14:03:37,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:03:37,052 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:03:37,053 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:03:37,053 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2021-08-06 14:03:37,053 INFO L402 AbstractCegarLoop]: === Iteration 149 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:03:37,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:03:37,053 INFO L82 PathProgramCache]: Analyzing trace with hash 742598781, now seen corresponding path program 146 times [2021-08-06 14:03:37,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:03:37,053 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007557708] [2021-08-06 14:03:37,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:03:37,053 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:03:37,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:03:37,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:03:37,714 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:03:37,714 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007557708] [2021-08-06 14:03:37,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007557708] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:03:37,714 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:03:37,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:03:37,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857401941] [2021-08-06 14:03:37,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:03:37,714 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:03:37,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:03:37,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:03:37,715 INFO L87 Difference]: Start difference. First operand 3062 states and 8091 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:03:40,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:03:40,455 INFO L93 Difference]: Finished difference Result 4729 states and 11781 transitions. [2021-08-06 14:03:40,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-06 14:03:40,456 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:03:40,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:03:40,460 INFO L225 Difference]: With dead ends: 4729 [2021-08-06 14:03:40,460 INFO L226 Difference]: Without dead ends: 4729 [2021-08-06 14:03:40,460 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 2366.6ms TimeCoverageRelationStatistics Valid=479, Invalid=1591, Unknown=0, NotChecked=0, Total=2070 [2021-08-06 14:03:40,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4729 states. [2021-08-06 14:03:40,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4729 to 3072. [2021-08-06 14:03:40,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3072 states, 3070 states have (on average 2.6436482084690556) internal successors, (8116), 3071 states have internal predecessors, (8116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:03:40,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3072 states to 3072 states and 8116 transitions. [2021-08-06 14:03:40,492 INFO L78 Accepts]: Start accepts. Automaton has 3072 states and 8116 transitions. Word has length 94 [2021-08-06 14:03:40,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:03:40,492 INFO L470 AbstractCegarLoop]: Abstraction has 3072 states and 8116 transitions. [2021-08-06 14:03:40,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:03:40,492 INFO L276 IsEmpty]: Start isEmpty. Operand 3072 states and 8116 transitions. [2021-08-06 14:03:40,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:03:40,495 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:03:40,495 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:03:40,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2021-08-06 14:03:40,495 INFO L402 AbstractCegarLoop]: === Iteration 150 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:03:40,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:03:40,495 INFO L82 PathProgramCache]: Analyzing trace with hash 1314417355, now seen corresponding path program 147 times [2021-08-06 14:03:40,495 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:03:40,495 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938153931] [2021-08-06 14:03:40,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:03:40,496 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:03:40,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:03:41,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:03:41,148 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:03:41,148 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938153931] [2021-08-06 14:03:41,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938153931] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:03:41,148 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:03:41,148 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:03:41,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755487250] [2021-08-06 14:03:41,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:03:41,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:03:41,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:03:41,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:03:41,149 INFO L87 Difference]: Start difference. First operand 3072 states and 8116 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:03:44,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:03:44,485 INFO L93 Difference]: Finished difference Result 4958 states and 12228 transitions. [2021-08-06 14:03:44,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-08-06 14:03:44,485 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:03:44,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:03:44,493 INFO L225 Difference]: With dead ends: 4958 [2021-08-06 14:03:44,493 INFO L226 Difference]: Without dead ends: 4958 [2021-08-06 14:03:44,493 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 2759.6ms TimeCoverageRelationStatistics Valid=512, Invalid=1650, Unknown=0, NotChecked=0, Total=2162 [2021-08-06 14:03:44,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4958 states. [2021-08-06 14:03:44,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4958 to 3070. [2021-08-06 14:03:44,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3070 states, 3068 states have (on average 2.64374185136897) internal successors, (8111), 3069 states have internal predecessors, (8111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:03:44,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3070 states to 3070 states and 8111 transitions. [2021-08-06 14:03:44,550 INFO L78 Accepts]: Start accepts. Automaton has 3070 states and 8111 transitions. Word has length 94 [2021-08-06 14:03:44,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:03:44,550 INFO L470 AbstractCegarLoop]: Abstraction has 3070 states and 8111 transitions. [2021-08-06 14:03:44,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:03:44,551 INFO L276 IsEmpty]: Start isEmpty. Operand 3070 states and 8111 transitions. [2021-08-06 14:03:44,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:03:44,555 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:03:44,555 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:03:44,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2021-08-06 14:03:44,555 INFO L402 AbstractCegarLoop]: === Iteration 151 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:03:44,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:03:44,556 INFO L82 PathProgramCache]: Analyzing trace with hash 753771969, now seen corresponding path program 148 times [2021-08-06 14:03:44,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:03:44,556 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565112276] [2021-08-06 14:03:44,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:03:44,556 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:03:44,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:03:45,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:03:45,365 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:03:45,366 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565112276] [2021-08-06 14:03:45,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565112276] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:03:45,366 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:03:45,366 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:03:45,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693015366] [2021-08-06 14:03:45,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:03:45,366 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:03:45,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:03:45,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:03:45,367 INFO L87 Difference]: Start difference. First operand 3070 states and 8111 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:03:48,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:03:48,862 INFO L93 Difference]: Finished difference Result 5009 states and 12342 transitions. [2021-08-06 14:03:48,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-08-06 14:03:48,863 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:03:48,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:03:48,870 INFO L225 Difference]: With dead ends: 5009 [2021-08-06 14:03:48,870 INFO L226 Difference]: Without dead ends: 5009 [2021-08-06 14:03:48,870 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 3000.7ms TimeCoverageRelationStatistics Valid=544, Invalid=1712, Unknown=0, NotChecked=0, Total=2256 [2021-08-06 14:03:48,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5009 states. [2021-08-06 14:03:48,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5009 to 3066. [2021-08-06 14:03:48,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3066 states, 3064 states have (on average 2.643929503916449) internal successors, (8101), 3065 states have internal predecessors, (8101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:03:48,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3066 states to 3066 states and 8101 transitions. [2021-08-06 14:03:48,924 INFO L78 Accepts]: Start accepts. Automaton has 3066 states and 8101 transitions. Word has length 94 [2021-08-06 14:03:48,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:03:48,925 INFO L470 AbstractCegarLoop]: Abstraction has 3066 states and 8101 transitions. [2021-08-06 14:03:48,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:03:48,925 INFO L276 IsEmpty]: Start isEmpty. Operand 3066 states and 8101 transitions. [2021-08-06 14:03:48,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:03:48,928 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:03:48,929 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:03:48,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2021-08-06 14:03:48,929 INFO L402 AbstractCegarLoop]: === Iteration 152 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:03:48,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:03:48,929 INFO L82 PathProgramCache]: Analyzing trace with hash 231247587, now seen corresponding path program 149 times [2021-08-06 14:03:48,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:03:48,929 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590201101] [2021-08-06 14:03:48,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:03:48,929 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:03:48,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:03:49,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:03:49,698 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:03:49,698 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590201101] [2021-08-06 14:03:49,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590201101] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:03:49,698 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:03:49,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:03:49,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112005000] [2021-08-06 14:03:49,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:03:49,698 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:03:49,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:03:49,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:03:49,699 INFO L87 Difference]: Start difference. First operand 3066 states and 8101 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:03:53,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:03:53,509 INFO L93 Difference]: Finished difference Result 5060 states and 12456 transitions. [2021-08-06 14:03:53,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-06 14:03:53,509 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:03:53,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:03:53,515 INFO L225 Difference]: With dead ends: 5060 [2021-08-06 14:03:53,515 INFO L226 Difference]: Without dead ends: 5060 [2021-08-06 14:03:53,516 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 3212.4ms TimeCoverageRelationStatistics Valid=575, Invalid=1777, Unknown=0, NotChecked=0, Total=2352 [2021-08-06 14:03:53,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5060 states. [2021-08-06 14:03:53,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5060 to 3064. [2021-08-06 14:03:53,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3064 states, 3062 states have (on average 2.644023514043109) internal successors, (8096), 3063 states have internal predecessors, (8096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:03:53,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3064 states to 3064 states and 8096 transitions. [2021-08-06 14:03:53,555 INFO L78 Accepts]: Start accepts. Automaton has 3064 states and 8096 transitions. Word has length 94 [2021-08-06 14:03:53,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:03:53,555 INFO L470 AbstractCegarLoop]: Abstraction has 3064 states and 8096 transitions. [2021-08-06 14:03:53,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:03:53,556 INFO L276 IsEmpty]: Start isEmpty. Operand 3064 states and 8096 transitions. [2021-08-06 14:03:53,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:03:53,559 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:03:53,559 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:03:53,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2021-08-06 14:03:53,559 INFO L402 AbstractCegarLoop]: === Iteration 153 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:03:53,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:03:53,559 INFO L82 PathProgramCache]: Analyzing trace with hash -2085027705, now seen corresponding path program 150 times [2021-08-06 14:03:53,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:03:53,559 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559463549] [2021-08-06 14:03:53,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:03:53,559 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:03:53,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:03:54,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:03:54,331 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:03:54,331 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559463549] [2021-08-06 14:03:54,331 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559463549] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:03:54,331 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:03:54,331 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:03:54,331 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316513704] [2021-08-06 14:03:54,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:03:54,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:03:54,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:03:54,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:03:54,332 INFO L87 Difference]: Start difference. First operand 3064 states and 8096 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:03:58,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:03:58,167 INFO L93 Difference]: Finished difference Result 4538 states and 11397 transitions. [2021-08-06 14:03:58,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-08-06 14:03:58,167 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:03:58,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:03:58,173 INFO L225 Difference]: With dead ends: 4538 [2021-08-06 14:03:58,173 INFO L226 Difference]: Without dead ends: 4538 [2021-08-06 14:03:58,174 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 286 ImplicationChecksByTransitivity, 3351.2ms TimeCoverageRelationStatistics Valid=605, Invalid=1845, Unknown=0, NotChecked=0, Total=2450 [2021-08-06 14:03:58,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4538 states. [2021-08-06 14:03:58,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4538 to 3062. [2021-08-06 14:03:58,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3062 states, 3060 states have (on average 2.6441176470588235) internal successors, (8091), 3061 states have internal predecessors, (8091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:03:58,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3062 states to 3062 states and 8091 transitions. [2021-08-06 14:03:58,215 INFO L78 Accepts]: Start accepts. Automaton has 3062 states and 8091 transitions. Word has length 94 [2021-08-06 14:03:58,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:03:58,215 INFO L470 AbstractCegarLoop]: Abstraction has 3062 states and 8091 transitions. [2021-08-06 14:03:58,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:03:58,216 INFO L276 IsEmpty]: Start isEmpty. Operand 3062 states and 8091 transitions. [2021-08-06 14:03:58,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:03:58,219 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:03:58,219 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:03:58,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2021-08-06 14:03:58,219 INFO L402 AbstractCegarLoop]: === Iteration 154 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:03:58,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:03:58,220 INFO L82 PathProgramCache]: Analyzing trace with hash -537157511, now seen corresponding path program 151 times [2021-08-06 14:03:58,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:03:58,220 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860268382] [2021-08-06 14:03:58,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:03:58,220 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:03:58,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:03:58,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:03:58,695 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:03:58,695 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860268382] [2021-08-06 14:03:58,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860268382] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:03:58,695 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:03:58,695 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-08-06 14:03:58,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448911406] [2021-08-06 14:03:58,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-08-06 14:03:58,695 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:03:58,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-08-06 14:03:58,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2021-08-06 14:03:58,696 INFO L87 Difference]: Start difference. First operand 3062 states and 8091 transitions. Second operand has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:03:59,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:03:59,646 INFO L93 Difference]: Finished difference Result 3845 states and 9645 transitions. [2021-08-06 14:03:59,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-08-06 14:03:59,647 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:03:59,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:03:59,652 INFO L225 Difference]: With dead ends: 3845 [2021-08-06 14:03:59,652 INFO L226 Difference]: Without dead ends: 3845 [2021-08-06 14:03:59,653 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 832.8ms TimeCoverageRelationStatistics Valid=295, Invalid=895, Unknown=0, NotChecked=0, Total=1190 [2021-08-06 14:03:59,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3845 states. [2021-08-06 14:03:59,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3845 to 3089. [2021-08-06 14:03:59,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3089 states, 3087 states have (on average 2.641399416909621) internal successors, (8154), 3088 states have internal predecessors, (8154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:03:59,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3089 states to 3089 states and 8154 transitions. [2021-08-06 14:03:59,697 INFO L78 Accepts]: Start accepts. Automaton has 3089 states and 8154 transitions. Word has length 94 [2021-08-06 14:03:59,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:03:59,697 INFO L470 AbstractCegarLoop]: Abstraction has 3089 states and 8154 transitions. [2021-08-06 14:03:59,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:03:59,697 INFO L276 IsEmpty]: Start isEmpty. Operand 3089 states and 8154 transitions. [2021-08-06 14:03:59,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:03:59,700 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:03:59,700 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:03:59,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2021-08-06 14:03:59,700 INFO L402 AbstractCegarLoop]: === Iteration 155 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:03:59,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:03:59,701 INFO L82 PathProgramCache]: Analyzing trace with hash -1647323381, now seen corresponding path program 152 times [2021-08-06 14:03:59,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:03:59,701 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130520427] [2021-08-06 14:03:59,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:03:59,701 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:03:59,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:04:00,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:04:00,432 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:04:00,432 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130520427] [2021-08-06 14:04:00,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130520427] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:04:00,432 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:04:00,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:04:00,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067883010] [2021-08-06 14:04:00,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:04:00,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:04:00,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:04:00,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:04:00,434 INFO L87 Difference]: Start difference. First operand 3089 states and 8154 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:04:03,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:04:03,689 INFO L93 Difference]: Finished difference Result 6792 states and 17344 transitions. [2021-08-06 14:04:03,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-06 14:04:03,689 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:04:03,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:04:03,698 INFO L225 Difference]: With dead ends: 6792 [2021-08-06 14:04:03,698 INFO L226 Difference]: Without dead ends: 6792 [2021-08-06 14:04:03,698 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 2930.3ms TimeCoverageRelationStatistics Valid=554, Invalid=1516, Unknown=0, NotChecked=0, Total=2070 [2021-08-06 14:04:03,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6792 states. [2021-08-06 14:04:03,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6792 to 3293. [2021-08-06 14:04:03,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3293 states, 3291 states have (on average 2.6636280765724702) internal successors, (8766), 3292 states have internal predecessors, (8766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:04:03,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3293 states to 3293 states and 8766 transitions. [2021-08-06 14:04:03,749 INFO L78 Accepts]: Start accepts. Automaton has 3293 states and 8766 transitions. Word has length 94 [2021-08-06 14:04:03,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:04:03,749 INFO L470 AbstractCegarLoop]: Abstraction has 3293 states and 8766 transitions. [2021-08-06 14:04:03,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:04:03,749 INFO L276 IsEmpty]: Start isEmpty. Operand 3293 states and 8766 transitions. [2021-08-06 14:04:03,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:04:03,753 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:04:03,753 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:04:03,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2021-08-06 14:04:03,753 INFO L402 AbstractCegarLoop]: === Iteration 156 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:04:03,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:04:03,753 INFO L82 PathProgramCache]: Analyzing trace with hash -1689393727, now seen corresponding path program 153 times [2021-08-06 14:04:03,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:04:03,753 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640528798] [2021-08-06 14:04:03,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:04:03,754 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:04:03,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:04:04,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:04:04,423 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:04:04,423 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640528798] [2021-08-06 14:04:04,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640528798] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:04:04,423 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:04:04,423 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:04:04,423 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699732676] [2021-08-06 14:04:04,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:04:04,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:04:04,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:04:04,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:04:04,424 INFO L87 Difference]: Start difference. First operand 3293 states and 8766 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:04:07,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:04:07,986 INFO L93 Difference]: Finished difference Result 6566 states and 16925 transitions. [2021-08-06 14:04:07,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-06 14:04:07,986 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:04:07,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:04:07,995 INFO L225 Difference]: With dead ends: 6566 [2021-08-06 14:04:07,996 INFO L226 Difference]: Without dead ends: 6566 [2021-08-06 14:04:07,996 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 2950.6ms TimeCoverageRelationStatistics Valid=536, Invalid=1444, Unknown=0, NotChecked=0, Total=1980 [2021-08-06 14:04:08,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6566 states. [2021-08-06 14:04:08,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6566 to 3257. [2021-08-06 14:04:08,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3257 states, 3255 states have (on average 2.6599078341013827) internal successors, (8658), 3256 states have internal predecessors, (8658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:04:08,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3257 states to 3257 states and 8658 transitions. [2021-08-06 14:04:08,051 INFO L78 Accepts]: Start accepts. Automaton has 3257 states and 8658 transitions. Word has length 94 [2021-08-06 14:04:08,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:04:08,052 INFO L470 AbstractCegarLoop]: Abstraction has 3257 states and 8658 transitions. [2021-08-06 14:04:08,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:04:08,052 INFO L276 IsEmpty]: Start isEmpty. Operand 3257 states and 8658 transitions. [2021-08-06 14:04:08,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:04:08,055 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:04:08,055 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:04:08,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2021-08-06 14:04:08,056 INFO L402 AbstractCegarLoop]: === Iteration 157 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:04:08,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:04:08,056 INFO L82 PathProgramCache]: Analyzing trace with hash -1055045341, now seen corresponding path program 154 times [2021-08-06 14:04:08,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:04:08,056 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578235986] [2021-08-06 14:04:08,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:04:08,056 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:04:08,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:04:08,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:04:08,734 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:04:08,734 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578235986] [2021-08-06 14:04:08,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578235986] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:04:08,734 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:04:08,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:04:08,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031591990] [2021-08-06 14:04:08,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:04:08,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:04:08,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:04:08,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:04:08,735 INFO L87 Difference]: Start difference. First operand 3257 states and 8658 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:04:11,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:04:11,952 INFO L93 Difference]: Finished difference Result 6487 states and 16633 transitions. [2021-08-06 14:04:11,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-06 14:04:11,953 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:04:11,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:04:11,961 INFO L225 Difference]: With dead ends: 6487 [2021-08-06 14:04:11,961 INFO L226 Difference]: Without dead ends: 6487 [2021-08-06 14:04:11,961 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 2733.4ms TimeCoverageRelationStatistics Valid=539, Invalid=1531, Unknown=0, NotChecked=0, Total=2070 [2021-08-06 14:04:11,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6487 states. [2021-08-06 14:04:12,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6487 to 3185. [2021-08-06 14:04:12,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3185 states, 3183 states have (on average 2.652214891611687) internal successors, (8442), 3184 states have internal predecessors, (8442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:04:12,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3185 states to 3185 states and 8442 transitions. [2021-08-06 14:04:12,009 INFO L78 Accepts]: Start accepts. Automaton has 3185 states and 8442 transitions. Word has length 94 [2021-08-06 14:04:12,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:04:12,009 INFO L470 AbstractCegarLoop]: Abstraction has 3185 states and 8442 transitions. [2021-08-06 14:04:12,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:04:12,009 INFO L276 IsEmpty]: Start isEmpty. Operand 3185 states and 8442 transitions. [2021-08-06 14:04:12,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:04:12,012 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:04:12,012 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:04:12,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2021-08-06 14:04:12,012 INFO L402 AbstractCegarLoop]: === Iteration 158 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:04:12,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:04:12,013 INFO L82 PathProgramCache]: Analyzing trace with hash -34029661, now seen corresponding path program 155 times [2021-08-06 14:04:12,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:04:12,013 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387705937] [2021-08-06 14:04:12,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:04:12,013 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:04:12,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:04:12,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:04:12,686 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:04:12,686 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387705937] [2021-08-06 14:04:12,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387705937] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:04:12,686 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:04:12,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:04:12,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601605415] [2021-08-06 14:04:12,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:04:12,687 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:04:12,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:04:12,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:04:12,687 INFO L87 Difference]: Start difference. First operand 3185 states and 8442 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:04:15,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:04:15,739 INFO L93 Difference]: Finished difference Result 5747 states and 14695 transitions. [2021-08-06 14:04:15,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-06 14:04:15,740 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:04:15,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:04:15,746 INFO L225 Difference]: With dead ends: 5747 [2021-08-06 14:04:15,746 INFO L226 Difference]: Without dead ends: 5747 [2021-08-06 14:04:15,746 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 2641.3ms TimeCoverageRelationStatistics Valid=524, Invalid=1546, Unknown=0, NotChecked=0, Total=2070 [2021-08-06 14:04:15,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5747 states. [2021-08-06 14:04:15,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5747 to 3191. [2021-08-06 14:04:15,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3191 states, 3189 states have (on average 2.651928504233302) internal successors, (8457), 3190 states have internal predecessors, (8457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:04:15,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3191 states to 3191 states and 8457 transitions. [2021-08-06 14:04:15,792 INFO L78 Accepts]: Start accepts. Automaton has 3191 states and 8457 transitions. Word has length 94 [2021-08-06 14:04:15,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:04:15,793 INFO L470 AbstractCegarLoop]: Abstraction has 3191 states and 8457 transitions. [2021-08-06 14:04:15,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:04:15,793 INFO L276 IsEmpty]: Start isEmpty. Operand 3191 states and 8457 transitions. [2021-08-06 14:04:15,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:04:15,796 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:04:15,796 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:04:15,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2021-08-06 14:04:15,796 INFO L402 AbstractCegarLoop]: === Iteration 159 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:04:15,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:04:15,797 INFO L82 PathProgramCache]: Analyzing trace with hash 185419479, now seen corresponding path program 156 times [2021-08-06 14:04:15,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:04:15,797 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544687785] [2021-08-06 14:04:15,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:04:15,797 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:04:15,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:04:16,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:04:16,476 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:04:16,476 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544687785] [2021-08-06 14:04:16,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544687785] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:04:16,477 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:04:16,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:04:16,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748739339] [2021-08-06 14:04:16,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:04:16,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:04:16,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:04:16,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:04:16,477 INFO L87 Difference]: Start difference. First operand 3191 states and 8457 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:04:19,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:04:19,811 INFO L93 Difference]: Finished difference Result 8901 states and 22628 transitions. [2021-08-06 14:04:19,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-06 14:04:19,811 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:04:19,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:04:19,822 INFO L225 Difference]: With dead ends: 8901 [2021-08-06 14:04:19,823 INFO L226 Difference]: Without dead ends: 8901 [2021-08-06 14:04:19,823 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 2922.1ms TimeCoverageRelationStatistics Valid=554, Invalid=1516, Unknown=0, NotChecked=0, Total=2070 [2021-08-06 14:04:19,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8901 states. [2021-08-06 14:04:19,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8901 to 3323. [2021-08-06 14:04:19,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3323 states, 3321 states have (on average 2.6657633242999097) internal successors, (8853), 3322 states have internal predecessors, (8853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:04:19,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3323 states to 3323 states and 8853 transitions. [2021-08-06 14:04:19,887 INFO L78 Accepts]: Start accepts. Automaton has 3323 states and 8853 transitions. Word has length 94 [2021-08-06 14:04:19,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:04:19,887 INFO L470 AbstractCegarLoop]: Abstraction has 3323 states and 8853 transitions. [2021-08-06 14:04:19,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:04:19,887 INFO L276 IsEmpty]: Start isEmpty. Operand 3323 states and 8853 transitions. [2021-08-06 14:04:19,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:04:19,891 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:04:19,891 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:04:19,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2021-08-06 14:04:19,891 INFO L402 AbstractCegarLoop]: === Iteration 160 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:04:19,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:04:19,891 INFO L82 PathProgramCache]: Analyzing trace with hash 143349133, now seen corresponding path program 157 times [2021-08-06 14:04:19,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:04:19,892 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032207684] [2021-08-06 14:04:19,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:04:19,892 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:04:19,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:04:20,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:04:20,573 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:04:20,573 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032207684] [2021-08-06 14:04:20,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032207684] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:04:20,573 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:04:20,573 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:04:20,573 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865075832] [2021-08-06 14:04:20,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:04:20,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:04:20,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:04:20,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:04:20,574 INFO L87 Difference]: Start difference. First operand 3323 states and 8853 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:04:24,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:04:24,007 INFO L93 Difference]: Finished difference Result 8675 states and 22209 transitions. [2021-08-06 14:04:24,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-06 14:04:24,007 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:04:24,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:04:24,018 INFO L225 Difference]: With dead ends: 8675 [2021-08-06 14:04:24,018 INFO L226 Difference]: Without dead ends: 8675 [2021-08-06 14:04:24,018 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 2934.7ms TimeCoverageRelationStatistics Valid=536, Invalid=1444, Unknown=0, NotChecked=0, Total=1980 [2021-08-06 14:04:24,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8675 states. [2021-08-06 14:04:24,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8675 to 3287. [2021-08-06 14:04:24,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3287 states, 3285 states have (on average 2.6621004566210047) internal successors, (8745), 3286 states have internal predecessors, (8745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:04:24,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3287 states to 3287 states and 8745 transitions. [2021-08-06 14:04:24,080 INFO L78 Accepts]: Start accepts. Automaton has 3287 states and 8745 transitions. Word has length 94 [2021-08-06 14:04:24,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:04:24,080 INFO L470 AbstractCegarLoop]: Abstraction has 3287 states and 8745 transitions. [2021-08-06 14:04:24,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:04:24,080 INFO L276 IsEmpty]: Start isEmpty. Operand 3287 states and 8745 transitions. [2021-08-06 14:04:24,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:04:24,084 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:04:24,084 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:04:24,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2021-08-06 14:04:24,084 INFO L402 AbstractCegarLoop]: === Iteration 161 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:04:24,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:04:24,085 INFO L82 PathProgramCache]: Analyzing trace with hash 777697519, now seen corresponding path program 158 times [2021-08-06 14:04:24,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:04:24,085 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891743809] [2021-08-06 14:04:24,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:04:24,085 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:04:24,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:04:24,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:04:24,768 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:04:24,768 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891743809] [2021-08-06 14:04:24,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891743809] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:04:24,768 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:04:24,768 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:04:24,768 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290226780] [2021-08-06 14:04:24,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:04:24,768 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:04:24,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:04:24,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:04:24,769 INFO L87 Difference]: Start difference. First operand 3287 states and 8745 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:04:28,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:04:28,042 INFO L93 Difference]: Finished difference Result 8115 states and 20751 transitions. [2021-08-06 14:04:28,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-06 14:04:28,043 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:04:28,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:04:28,051 INFO L225 Difference]: With dead ends: 8115 [2021-08-06 14:04:28,051 INFO L226 Difference]: Without dead ends: 8115 [2021-08-06 14:04:28,052 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 2809.7ms TimeCoverageRelationStatistics Valid=539, Invalid=1531, Unknown=0, NotChecked=0, Total=2070 [2021-08-06 14:04:28,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8115 states. [2021-08-06 14:04:28,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8115 to 3215. [2021-08-06 14:04:28,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3215 states, 3213 states have (on average 2.6545284780578897) internal successors, (8529), 3214 states have internal predecessors, (8529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:04:28,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3215 states to 3215 states and 8529 transitions. [2021-08-06 14:04:28,101 INFO L78 Accepts]: Start accepts. Automaton has 3215 states and 8529 transitions. Word has length 94 [2021-08-06 14:04:28,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:04:28,101 INFO L470 AbstractCegarLoop]: Abstraction has 3215 states and 8529 transitions. [2021-08-06 14:04:28,101 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:04:28,101 INFO L276 IsEmpty]: Start isEmpty. Operand 3215 states and 8529 transitions. [2021-08-06 14:04:28,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:04:28,104 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:04:28,105 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:04:28,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2021-08-06 14:04:28,105 INFO L402 AbstractCegarLoop]: === Iteration 162 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:04:28,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:04:28,105 INFO L82 PathProgramCache]: Analyzing trace with hash 58645113, now seen corresponding path program 159 times [2021-08-06 14:04:28,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:04:28,105 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219898064] [2021-08-06 14:04:28,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:04:28,105 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:04:28,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:04:28,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:04:28,780 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:04:28,780 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219898064] [2021-08-06 14:04:28,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219898064] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:04:28,780 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:04:28,780 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:04:28,780 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602827137] [2021-08-06 14:04:28,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:04:28,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:04:28,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:04:28,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:04:28,781 INFO L87 Difference]: Start difference. First operand 3215 states and 8529 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:04:32,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:04:32,569 INFO L93 Difference]: Finished difference Result 7718 states and 19661 transitions. [2021-08-06 14:04:32,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-06 14:04:32,569 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:04:32,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:04:32,578 INFO L225 Difference]: With dead ends: 7718 [2021-08-06 14:04:32,578 INFO L226 Difference]: Without dead ends: 7718 [2021-08-06 14:04:32,578 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 3270.9ms TimeCoverageRelationStatistics Valid=554, Invalid=1516, Unknown=0, NotChecked=0, Total=2070 [2021-08-06 14:04:32,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7718 states. [2021-08-06 14:04:32,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7718 to 3263. [2021-08-06 14:04:32,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3263 states, 3261 states have (on average 2.659613615455382) internal successors, (8673), 3262 states have internal predecessors, (8673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:04:32,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3263 states to 3263 states and 8673 transitions. [2021-08-06 14:04:32,639 INFO L78 Accepts]: Start accepts. Automaton has 3263 states and 8673 transitions. Word has length 94 [2021-08-06 14:04:32,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:04:32,640 INFO L470 AbstractCegarLoop]: Abstraction has 3263 states and 8673 transitions. [2021-08-06 14:04:32,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:04:32,640 INFO L276 IsEmpty]: Start isEmpty. Operand 3263 states and 8673 transitions. [2021-08-06 14:04:32,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:04:32,644 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:04:32,644 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:04:32,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2021-08-06 14:04:32,644 INFO L402 AbstractCegarLoop]: === Iteration 163 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:04:32,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:04:32,644 INFO L82 PathProgramCache]: Analyzing trace with hash 16574767, now seen corresponding path program 160 times [2021-08-06 14:04:32,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:04:32,644 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622387559] [2021-08-06 14:04:32,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:04:32,645 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:04:32,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:04:33,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:04:33,415 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:04:33,415 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622387559] [2021-08-06 14:04:33,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622387559] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:04:33,415 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:04:33,415 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:04:33,415 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289754626] [2021-08-06 14:04:33,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:04:33,416 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:04:33,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:04:33,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:04:33,416 INFO L87 Difference]: Start difference. First operand 3263 states and 8673 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:04:37,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:04:37,231 INFO L93 Difference]: Finished difference Result 8408 states and 21483 transitions. [2021-08-06 14:04:37,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-06 14:04:37,231 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:04:37,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:04:37,245 INFO L225 Difference]: With dead ends: 8408 [2021-08-06 14:04:37,245 INFO L226 Difference]: Without dead ends: 8408 [2021-08-06 14:04:37,245 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 3269.9ms TimeCoverageRelationStatistics Valid=536, Invalid=1444, Unknown=0, NotChecked=0, Total=1980 [2021-08-06 14:04:37,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8408 states. [2021-08-06 14:04:37,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8408 to 3227. [2021-08-06 14:04:37,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3227 states, 3225 states have (on average 2.655813953488372) internal successors, (8565), 3226 states have internal predecessors, (8565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:04:37,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3227 states to 3227 states and 8565 transitions. [2021-08-06 14:04:37,324 INFO L78 Accepts]: Start accepts. Automaton has 3227 states and 8565 transitions. Word has length 94 [2021-08-06 14:04:37,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:04:37,325 INFO L470 AbstractCegarLoop]: Abstraction has 3227 states and 8565 transitions. [2021-08-06 14:04:37,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:04:37,325 INFO L276 IsEmpty]: Start isEmpty. Operand 3227 states and 8565 transitions. [2021-08-06 14:04:37,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:04:37,329 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:04:37,329 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:04:37,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2021-08-06 14:04:37,330 INFO L402 AbstractCegarLoop]: === Iteration 164 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:04:37,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:04:37,330 INFO L82 PathProgramCache]: Analyzing trace with hash 369087889, now seen corresponding path program 161 times [2021-08-06 14:04:37,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:04:37,330 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997263851] [2021-08-06 14:04:37,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:04:37,330 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:04:37,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:04:38,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:04:38,105 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:04:38,105 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997263851] [2021-08-06 14:04:38,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997263851] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:04:38,105 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:04:38,105 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:04:38,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768866298] [2021-08-06 14:04:38,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:04:38,106 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:04:38,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:04:38,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:04:38,106 INFO L87 Difference]: Start difference. First operand 3227 states and 8565 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:04:41,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:04:41,937 INFO L93 Difference]: Finished difference Result 7361 states and 18719 transitions. [2021-08-06 14:04:41,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-06 14:04:41,938 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:04:41,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:04:41,951 INFO L225 Difference]: With dead ends: 7361 [2021-08-06 14:04:41,951 INFO L226 Difference]: Without dead ends: 7361 [2021-08-06 14:04:41,951 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 3275.8ms TimeCoverageRelationStatistics Valid=539, Invalid=1531, Unknown=0, NotChecked=0, Total=2070 [2021-08-06 14:04:41,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7361 states. [2021-08-06 14:04:42,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7361 to 3229. [2021-08-06 14:04:42,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3229 states, 3227 states have (on average 2.65571738456771) internal successors, (8570), 3228 states have internal predecessors, (8570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:04:42,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3229 states to 3229 states and 8570 transitions. [2021-08-06 14:04:42,022 INFO L78 Accepts]: Start accepts. Automaton has 3229 states and 8570 transitions. Word has length 94 [2021-08-06 14:04:42,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:04:42,022 INFO L470 AbstractCegarLoop]: Abstraction has 3229 states and 8570 transitions. [2021-08-06 14:04:42,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:04:42,022 INFO L276 IsEmpty]: Start isEmpty. Operand 3229 states and 8570 transitions. [2021-08-06 14:04:42,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:04:42,027 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:04:42,027 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:04:42,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2021-08-06 14:04:42,027 INFO L402 AbstractCegarLoop]: === Iteration 165 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:04:42,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:04:42,027 INFO L82 PathProgramCache]: Analyzing trace with hash 940906463, now seen corresponding path program 162 times [2021-08-06 14:04:42,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:04:42,027 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021888260] [2021-08-06 14:04:42,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:04:42,028 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:04:42,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:04:42,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:04:42,790 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:04:42,790 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021888260] [2021-08-06 14:04:42,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021888260] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:04:42,790 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:04:42,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:04:42,791 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722234468] [2021-08-06 14:04:42,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:04:42,791 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:04:42,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:04:42,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:04:42,792 INFO L87 Difference]: Start difference. First operand 3229 states and 8570 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:04:46,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:04:46,655 INFO L93 Difference]: Finished difference Result 7339 states and 18673 transitions. [2021-08-06 14:04:46,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-08-06 14:04:46,655 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:04:46,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:04:46,665 INFO L225 Difference]: With dead ends: 7339 [2021-08-06 14:04:46,665 INFO L226 Difference]: Without dead ends: 7339 [2021-08-06 14:04:46,665 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 3261.8ms TimeCoverageRelationStatistics Valid=572, Invalid=1590, Unknown=0, NotChecked=0, Total=2162 [2021-08-06 14:04:46,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7339 states. [2021-08-06 14:04:46,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7339 to 3227. [2021-08-06 14:04:46,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3227 states, 3225 states have (on average 2.655813953488372) internal successors, (8565), 3226 states have internal predecessors, (8565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:04:46,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3227 states to 3227 states and 8565 transitions. [2021-08-06 14:04:46,728 INFO L78 Accepts]: Start accepts. Automaton has 3227 states and 8565 transitions. Word has length 94 [2021-08-06 14:04:46,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:04:46,728 INFO L470 AbstractCegarLoop]: Abstraction has 3227 states and 8565 transitions. [2021-08-06 14:04:46,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:04:46,728 INFO L276 IsEmpty]: Start isEmpty. Operand 3227 states and 8565 transitions. [2021-08-06 14:04:46,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:04:46,732 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:04:46,732 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:04:46,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2021-08-06 14:04:46,733 INFO L402 AbstractCegarLoop]: === Iteration 166 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:04:46,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:04:46,733 INFO L82 PathProgramCache]: Analyzing trace with hash -1939287279, now seen corresponding path program 163 times [2021-08-06 14:04:46,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:04:46,733 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941574875] [2021-08-06 14:04:46,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:04:46,733 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:04:46,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:04:47,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:04:47,441 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:04:47,441 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941574875] [2021-08-06 14:04:47,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941574875] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:04:47,441 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:04:47,441 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:04:47,441 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483962943] [2021-08-06 14:04:47,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:04:47,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:04:47,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:04:47,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:04:47,442 INFO L87 Difference]: Start difference. First operand 3227 states and 8565 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:04:52,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 14:04:52,290 INFO L93 Difference]: Finished difference Result 7792 states and 19843 transitions. [2021-08-06 14:04:52,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-08-06 14:04:52,291 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-06 14:04:52,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 14:04:52,300 INFO L225 Difference]: With dead ends: 7792 [2021-08-06 14:04:52,300 INFO L226 Difference]: Without dead ends: 7792 [2021-08-06 14:04:52,300 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 4230.6ms TimeCoverageRelationStatistics Valid=773, Invalid=1879, Unknown=0, NotChecked=0, Total=2652 [2021-08-06 14:04:52,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7792 states. [2021-08-06 14:04:52,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7792 to 3239. [2021-08-06 14:04:52,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3239 states, 3237 states have (on average 2.6570898980537536) internal successors, (8601), 3238 states have internal predecessors, (8601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:04:52,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3239 states to 3239 states and 8601 transitions. [2021-08-06 14:04:52,357 INFO L78 Accepts]: Start accepts. Automaton has 3239 states and 8601 transitions. Word has length 94 [2021-08-06 14:04:52,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 14:04:52,357 INFO L470 AbstractCegarLoop]: Abstraction has 3239 states and 8601 transitions. [2021-08-06 14:04:52,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 14:04:52,357 INFO L276 IsEmpty]: Start isEmpty. Operand 3239 states and 8601 transitions. [2021-08-06 14:04:52,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-06 14:04:52,361 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 14:04:52,361 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 14:04:52,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2021-08-06 14:04:52,361 INFO L402 AbstractCegarLoop]: === Iteration 167 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-06 14:04:52,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 14:04:52,361 INFO L82 PathProgramCache]: Analyzing trace with hash 1753679209, now seen corresponding path program 164 times [2021-08-06 14:04:52,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 14:04:52,362 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199986445] [2021-08-06 14:04:52,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 14:04:52,362 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 14:04:52,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 14:04:53,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 14:04:53,033 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 14:04:53,033 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199986445] [2021-08-06 14:04:53,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199986445] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 14:04:53,033 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 14:04:53,033 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-06 14:04:53,033 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686880149] [2021-08-06 14:04:53,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-06 14:04:53,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 14:04:53,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-06 14:04:53,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-08-06 14:04:53,034 INFO L87 Difference]: Start difference. First operand 3239 states and 8601 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2021-08-06 14:04:55,900 WARN L223 SmtUtils]: Removed 19 from assertion stack [2021-08-06 14:04:55,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-08-06 14:04:55,901 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-06 14:04:55,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2021-08-06 14:04:55,901 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was constructing difference of abstraction (3239states) and FLOYD_HOARE automaton (currently 21 states, 25 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 84 for 49ms.. [2021-08-06 14:04:55,902 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-08-06 14:04:55,902 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-08-06 14:04:55,902 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-08-06 14:04:55,902 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-06 14:04:55,902 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-06 14:04:55,906 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-06 14:04:55,906 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-06 14:04:55,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.08 02:04:55 BasicIcfg [2021-08-06 14:04:55,907 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-06 14:04:55,908 INFO L168 Benchmark]: Toolchain (without parser) took 732548.98 ms. Allocated memory was 219.2 MB in the beginning and 1.0 GB in the end (delta: 791.7 MB). Free memory was 180.0 MB in the beginning and 861.8 MB in the end (delta: -681.8 MB). Peak memory consumption was 110.2 MB. Max. memory is 8.0 GB. [2021-08-06 14:04:55,908 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 219.2 MB. Free memory is still 199.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-06 14:04:55,908 INFO L168 Benchmark]: CACSL2BoogieTranslator took 826.37 ms. Allocated memory is still 219.2 MB. Free memory was 179.8 MB in the beginning and 158.9 MB in the end (delta: 20.9 MB). Peak memory consumption was 22.3 MB. Max. memory is 8.0 GB. [2021-08-06 14:04:55,908 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.06 ms. Allocated memory is still 219.2 MB. Free memory was 158.9 MB in the beginning and 155.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-08-06 14:04:55,908 INFO L168 Benchmark]: Boogie Preprocessor took 27.56 ms. Allocated memory is still 219.2 MB. Free memory was 155.8 MB in the beginning and 153.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-06 14:04:55,908 INFO L168 Benchmark]: RCFGBuilder took 654.59 ms. Allocated memory was 219.2 MB in the beginning and 297.8 MB in the end (delta: 78.6 MB). Free memory was 153.1 MB in the beginning and 251.4 MB in the end (delta: -98.3 MB). Peak memory consumption was 26.0 MB. Max. memory is 8.0 GB. [2021-08-06 14:04:55,908 INFO L168 Benchmark]: TraceAbstraction took 730971.68 ms. Allocated memory was 297.8 MB in the beginning and 1.0 GB in the end (delta: 713.0 MB). Free memory was 250.9 MB in the beginning and 861.8 MB in the end (delta: -610.9 MB). Peak memory consumption was 102.2 MB. Max. memory is 8.0 GB. [2021-08-06 14:04:55,909 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 219.2 MB. Free memory is still 199.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 826.37 ms. Allocated memory is still 219.2 MB. Free memory was 179.8 MB in the beginning and 158.9 MB in the end (delta: 20.9 MB). Peak memory consumption was 22.3 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 64.06 ms. Allocated memory is still 219.2 MB. Free memory was 158.9 MB in the beginning and 155.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 27.56 ms. Allocated memory is still 219.2 MB. Free memory was 155.8 MB in the beginning and 153.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 654.59 ms. Allocated memory was 219.2 MB in the beginning and 297.8 MB in the end (delta: 78.6 MB). Free memory was 153.1 MB in the beginning and 251.4 MB in the end (delta: -98.3 MB). Peak memory consumption was 26.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 730971.68 ms. Allocated memory was 297.8 MB in the beginning and 1.0 GB in the end (delta: 713.0 MB). Free memory was 250.9 MB in the beginning and 861.8 MB in the end (delta: -610.9 MB). Peak memory consumption was 102.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 1675]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (3239states) and FLOYD_HOARE automaton (currently 21 states, 25 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 84 for 49ms.. - TimeoutResultAtElement [Line: 1675]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (3239states) and FLOYD_HOARE automaton (currently 21 states, 25 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 84 for 49ms.. - TimeoutResultAtElement [Line: 1675]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (3239states) and FLOYD_HOARE automaton (currently 21 states, 25 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 84 for 49ms.. - TimeoutResultAtElement [Line: 1675]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (3239states) and FLOYD_HOARE automaton (currently 21 states, 25 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 84 for 49ms.. - TimeoutResultAtElement [Line: 1711]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (3239states) and FLOYD_HOARE automaton (currently 21 states, 25 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 84 for 49ms.. - TimeoutResultAtElement [Line: 1712]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (3239states) and FLOYD_HOARE automaton (currently 21 states, 25 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 84 for 49ms.. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 4 procedures, 148 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 730858.8ms, OverallIterations: 167, TraceHistogramMax: 1, EmptinessCheckTime: 573.6ms, AutomataDifference: 605497.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 147.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 50534 SDtfs, 165550 SDslu, 508867 SDs, 0 SdLazy, 223379 SolverSat, 9979 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 108214.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8263 GetRequests, 501 SyntacticMatches, 165 SemanticMatches, 7596 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41987 ImplicationChecksByTransitivity, 517846.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=5107occurred in iteration=0, InterpolantAutomatonStates: 4682, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 8655.0ms AutomataMinimizationTime, 166 MinimizatonAttempts, 583638 StatesRemovedByMinimization, 165 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 261.3ms SsaConstructionTime, 1790.6ms SatisfiabilityAnalysisTime, 112149.5ms InterpolantComputationTime, 15584 NumberOfCodeBlocks, 15584 NumberOfCodeBlocksAsserted, 167 NumberOfCheckSat, 15417 ConstructedInterpolants, 0 QuantifiedInterpolants, 233559 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 167 InterpolantComputations, 167 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown