/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-2_2-container_of.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-17 23:20:49,419 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-17 23:20:49,420 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-17 23:20:49,458 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-17 23:20:49,458 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-17 23:20:49,462 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-17 23:20:49,463 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-17 23:20:49,464 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-17 23:20:49,465 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-17 23:20:49,465 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-17 23:20:49,466 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-17 23:20:49,467 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-17 23:20:49,478 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-17 23:20:49,482 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-17 23:20:49,483 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-17 23:20:49,484 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-17 23:20:49,485 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-17 23:20:49,486 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-17 23:20:49,491 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-17 23:20:49,492 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-17 23:20:49,493 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-17 23:20:49,495 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-17 23:20:49,496 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-17 23:20:49,497 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-17 23:20:49,500 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-17 23:20:49,504 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-17 23:20:49,505 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-17 23:20:49,505 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-17 23:20:49,509 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-01-17 23:20:49,531 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-17 23:20:49,533 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-17 23:20:49,533 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-17 23:20:49,534 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-17 23:20:49,534 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-17 23:20:49,534 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-17 23:20:49,535 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-17 23:20:49,535 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-17 23:20:49,535 INFO L138 SettingsManager]: * Use SBE=true [2022-01-17 23:20:49,535 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-17 23:20:49,535 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-17 23:20:49,536 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-17 23:20:49,536 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-17 23:20:49,536 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-17 23:20:49,536 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-17 23:20:49,536 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-17 23:20:49,536 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-17 23:20:49,536 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-17 23:20:49,536 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-17 23:20:49,536 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-17 23:20:49,536 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-17 23:20:49,537 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-17 23:20:49,537 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-17 23:20:49,537 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-17 23:20:49,537 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-17 23:20:49,538 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-17 23:20:49,538 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-17 23:20:49,538 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-17 23:20:49,538 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-17 23:20:49,538 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-17 23:20:49,538 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-17 23:20:49,538 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-17 23:20:49,538 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-17 23:20:49,538 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-17 23:20:49,713 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-17 23:20:49,731 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-17 23:20:49,733 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-17 23:20:49,733 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-17 23:20:49,736 INFO L275 PluginConnector]: CDTParser initialized [2022-01-17 23:20:49,737 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_2-container_of.i [2022-01-17 23:20:49,803 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09ff7cd23/86de1dedeace4b15916f81af7f22a120/FLAGd7296a515 [2022-01-17 23:20:50,222 INFO L306 CDTParser]: Found 1 translation units. [2022-01-17 23:20:50,222 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_2-container_of.i [2022-01-17 23:20:50,252 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09ff7cd23/86de1dedeace4b15916f81af7f22a120/FLAGd7296a515 [2022-01-17 23:20:50,760 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09ff7cd23/86de1dedeace4b15916f81af7f22a120 [2022-01-17 23:20:50,762 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-17 23:20:50,763 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-17 23:20:50,765 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-17 23:20:50,765 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-17 23:20:50,767 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-17 23:20:50,767 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.01 11:20:50" (1/1) ... [2022-01-17 23:20:50,768 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fd98a30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:20:50, skipping insertion in model container [2022-01-17 23:20:50,768 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.01 11:20:50" (1/1) ... [2022-01-17 23:20:50,788 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-17 23:20:50,818 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-17 23:20:50,935 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-01-17 23:20:51,244 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_2-container_of.i[75002,75015] [2022-01-17 23:20:51,277 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-17 23:20:51,285 INFO L203 MainTranslator]: Completed pre-run [2022-01-17 23:20:51,293 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-01-17 23:20:51,330 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_2-container_of.i[75002,75015] [2022-01-17 23:20:51,337 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-17 23:20:51,416 INFO L208 MainTranslator]: Completed translation [2022-01-17 23:20:51,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:20:51 WrapperNode [2022-01-17 23:20:51,417 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-17 23:20:51,417 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-17 23:20:51,418 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-17 23:20:51,418 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-17 23:20:51,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:20:51" (1/1) ... [2022-01-17 23:20:51,450 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:20:51" (1/1) ... [2022-01-17 23:20:51,481 INFO L137 Inliner]: procedures = 468, calls = 48, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 115 [2022-01-17 23:20:51,482 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-17 23:20:51,483 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-17 23:20:51,483 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-17 23:20:51,483 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-17 23:20:51,489 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:20:51" (1/1) ... [2022-01-17 23:20:51,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:20:51" (1/1) ... [2022-01-17 23:20:51,499 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:20:51" (1/1) ... [2022-01-17 23:20:51,500 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:20:51" (1/1) ... [2022-01-17 23:20:51,520 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:20:51" (1/1) ... [2022-01-17 23:20:51,522 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:20:51" (1/1) ... [2022-01-17 23:20:51,524 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:20:51" (1/1) ... [2022-01-17 23:20:51,528 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-17 23:20:51,528 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-17 23:20:51,528 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-17 23:20:51,528 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-17 23:20:51,536 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:20:51" (1/1) ... [2022-01-17 23:20:51,544 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-17 23:20:51,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-17 23:20:51,560 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-17 23:20:51,561 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-17 23:20:51,583 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-17 23:20:51,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-17 23:20:51,583 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-17 23:20:51,583 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-17 23:20:51,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-17 23:20:51,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-01-17 23:20:51,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-17 23:20:51,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-17 23:20:51,584 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-01-17 23:20:51,584 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-01-17 23:20:51,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-17 23:20:51,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-17 23:20:51,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-17 23:20:51,585 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-17 23:20:51,741 INFO L234 CfgBuilder]: Building ICFG [2022-01-17 23:20:51,742 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-17 23:20:51,908 INFO L275 CfgBuilder]: Performing block encoding [2022-01-17 23:20:51,920 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-17 23:20:51,921 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-17 23:20:51,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.01 11:20:51 BoogieIcfgContainer [2022-01-17 23:20:51,922 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-17 23:20:51,923 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-17 23:20:51,923 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-17 23:20:51,932 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-17 23:20:51,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.01 11:20:50" (1/3) ... [2022-01-17 23:20:51,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@648c5afc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.01 11:20:51, skipping insertion in model container [2022-01-17 23:20:51,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:20:51" (2/3) ... [2022-01-17 23:20:51,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@648c5afc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.01 11:20:51, skipping insertion in model container [2022-01-17 23:20:51,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.01 11:20:51" (3/3) ... [2022-01-17 23:20:51,934 INFO L111 eAbstractionObserver]: Analyzing ICFG race-2_2-container_of.i [2022-01-17 23:20:51,938 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-17 23:20:51,938 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-17 23:20:51,938 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-01-17 23:20:51,938 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-17 23:20:51,976 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,976 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,976 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,977 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,977 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,977 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,977 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,977 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,977 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,977 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,977 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,978 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,978 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,978 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,978 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,978 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,978 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,978 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,978 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,978 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,978 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,979 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,979 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,979 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,979 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,979 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,979 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,979 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,979 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,979 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,980 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,980 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,980 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,980 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,980 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,980 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,980 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,980 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,981 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,981 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,981 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,981 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,981 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,981 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,982 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,982 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,982 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,982 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,982 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,982 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,982 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,982 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,983 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,983 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,983 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,983 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,983 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,983 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,983 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,984 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,984 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,984 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,984 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,984 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,984 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,984 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,984 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,984 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,984 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,985 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,985 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,985 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,985 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,985 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,985 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,985 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,985 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,985 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,985 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,985 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,986 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,986 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,986 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,986 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,986 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,986 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,986 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,986 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,986 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,986 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,987 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,987 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,987 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,987 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,987 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,987 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,987 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,988 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,988 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,988 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,988 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,988 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,988 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,988 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,988 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,989 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,989 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,989 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,989 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,989 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,989 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,989 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,990 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,990 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,990 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,990 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,992 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,993 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,993 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,993 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,993 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,993 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,993 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,993 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,993 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,993 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,994 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,994 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,994 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,995 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,995 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,995 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,995 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,995 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,995 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,995 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,995 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,995 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,996 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,996 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:51,998 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-01-17 23:20:52,026 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-17 23:20:52,031 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-17 23:20:52,031 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-01-17 23:20:52,043 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 163 places, 163 transitions, 342 flow [2022-01-17 23:20:52,205 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 6161 states, 6153 states have (on average 2.791483829026491) internal successors, (17176), 6160 states have internal predecessors, (17176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:20:52,222 INFO L276 IsEmpty]: Start isEmpty. Operand has 6161 states, 6153 states have (on average 2.791483829026491) internal successors, (17176), 6160 states have internal predecessors, (17176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:20:52,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-01-17 23:20:52,236 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:20:52,236 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:20:52,237 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)] === [2022-01-17 23:20:52,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:20:52,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1084366875, now seen corresponding path program 1 times [2022-01-17 23:20:52,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:20:52,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173685964] [2022-01-17 23:20:52,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:20:52,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:20:52,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:20:52,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:20:52,652 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:20:52,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173685964] [2022-01-17 23:20:52,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173685964] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:20:52,652 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:20:52,653 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-17 23:20:52,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434098440] [2022-01-17 23:20:52,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:20:52,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-17 23:20:52,660 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:20:52,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-17 23:20:52,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-17 23:20:52,704 INFO L87 Difference]: Start difference. First operand has 6161 states, 6153 states have (on average 2.791483829026491) internal successors, (17176), 6160 states have internal predecessors, (17176), 0 states have call successors, (0), 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 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:20:53,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:20:53,090 INFO L93 Difference]: Finished difference Result 8485 states and 23259 transitions. [2022-01-17 23:20:53,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-17 23:20:53,093 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2022-01-17 23:20:53,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:20:53,145 INFO L225 Difference]: With dead ends: 8485 [2022-01-17 23:20:53,145 INFO L226 Difference]: Without dead ends: 7049 [2022-01-17 23:20:53,147 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2022-01-17 23:20:53,150 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 263 mSDsluCounter, 721 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 906 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-17 23:20:53,150 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [263 Valid, 906 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-17 23:20:53,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7049 states. [2022-01-17 23:20:53,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7049 to 5341. [2022-01-17 23:20:53,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5341 states, 5336 states have (on average 2.732946026986507) internal successors, (14583), 5340 states have internal predecessors, (14583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:20:53,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5341 states to 5341 states and 14583 transitions. [2022-01-17 23:20:53,361 INFO L78 Accepts]: Start accepts. Automaton has 5341 states and 14583 transitions. Word has length 60 [2022-01-17 23:20:53,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:20:53,362 INFO L470 AbstractCegarLoop]: Abstraction has 5341 states and 14583 transitions. [2022-01-17 23:20:53,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:20:53,362 INFO L276 IsEmpty]: Start isEmpty. Operand 5341 states and 14583 transitions. [2022-01-17 23:20:53,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-01-17 23:20:53,369 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:20:53,369 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:20:53,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-17 23:20:53,370 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)] === [2022-01-17 23:20:53,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:20:53,373 INFO L85 PathProgramCache]: Analyzing trace with hash 234520064, now seen corresponding path program 1 times [2022-01-17 23:20:53,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:20:53,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788346912] [2022-01-17 23:20:53,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:20:53,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:20:53,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:20:53,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:20:53,537 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:20:53,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788346912] [2022-01-17 23:20:53,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788346912] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:20:53,538 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:20:53,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-17 23:20:53,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863117384] [2022-01-17 23:20:53,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:20:53,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-17 23:20:53,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:20:53,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-17 23:20:53,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-17 23:20:53,541 INFO L87 Difference]: Start difference. First operand 5341 states and 14583 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:20:53,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:20:53,768 INFO L93 Difference]: Finished difference Result 7485 states and 20261 transitions. [2022-01-17 23:20:53,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-17 23:20:53,774 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2022-01-17 23:20:53,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:20:53,799 INFO L225 Difference]: With dead ends: 7485 [2022-01-17 23:20:53,800 INFO L226 Difference]: Without dead ends: 6303 [2022-01-17 23:20:53,803 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-01-17 23:20:53,804 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 212 mSDsluCounter, 684 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 871 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-17 23:20:53,804 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [212 Valid, 871 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-17 23:20:53,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6303 states. [2022-01-17 23:20:53,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6303 to 6133. [2022-01-17 23:20:53,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6133 states, 6129 states have (on average 2.734377549355523) internal successors, (16759), 6132 states have internal predecessors, (16759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:20:54,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6133 states to 6133 states and 16759 transitions. [2022-01-17 23:20:54,013 INFO L78 Accepts]: Start accepts. Automaton has 6133 states and 16759 transitions. Word has length 68 [2022-01-17 23:20:54,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:20:54,013 INFO L470 AbstractCegarLoop]: Abstraction has 6133 states and 16759 transitions. [2022-01-17 23:20:54,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:20:54,014 INFO L276 IsEmpty]: Start isEmpty. Operand 6133 states and 16759 transitions. [2022-01-17 23:20:54,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-17 23:20:54,020 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:20:54,020 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:20:54,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-17 23:20:54,020 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)] === [2022-01-17 23:20:54,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:20:54,021 INFO L85 PathProgramCache]: Analyzing trace with hash -682878094, now seen corresponding path program 1 times [2022-01-17 23:20:54,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:20:54,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009595558] [2022-01-17 23:20:54,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:20:54,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:20:54,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:20:54,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:20:54,138 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:20:54,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009595558] [2022-01-17 23:20:54,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009595558] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:20:54,139 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:20:54,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-17 23:20:54,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245057507] [2022-01-17 23:20:54,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:20:54,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-17 23:20:54,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:20:54,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-17 23:20:54,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-17 23:20:54,141 INFO L87 Difference]: Start difference. First operand 6133 states and 16759 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:20:54,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:20:54,189 INFO L93 Difference]: Finished difference Result 2127 states and 5636 transitions. [2022-01-17 23:20:54,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-17 23:20:54,190 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-01-17 23:20:54,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:20:54,198 INFO L225 Difference]: With dead ends: 2127 [2022-01-17 23:20:54,198 INFO L226 Difference]: Without dead ends: 2127 [2022-01-17 23:20:54,199 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-17 23:20:54,203 INFO L933 BasicCegarLoop]: 160 mSDtfsCounter, 158 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-17 23:20:54,205 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 474 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-17 23:20:54,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2127 states. [2022-01-17 23:20:54,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2127 to 2127. [2022-01-17 23:20:54,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2127 states, 2125 states have (on average 2.6522352941176472) internal successors, (5636), 2126 states have internal predecessors, (5636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:20:54,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2127 states to 2127 states and 5636 transitions. [2022-01-17 23:20:54,243 INFO L78 Accepts]: Start accepts. Automaton has 2127 states and 5636 transitions. Word has length 78 [2022-01-17 23:20:54,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:20:54,244 INFO L470 AbstractCegarLoop]: Abstraction has 2127 states and 5636 transitions. [2022-01-17 23:20:54,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:20:54,245 INFO L276 IsEmpty]: Start isEmpty. Operand 2127 states and 5636 transitions. [2022-01-17 23:20:54,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:20:54,261 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:20:54,261 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:20:54,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-17 23:20:54,262 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)] === [2022-01-17 23:20:54,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:20:54,263 INFO L85 PathProgramCache]: Analyzing trace with hash -384806846, now seen corresponding path program 1 times [2022-01-17 23:20:54,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:20:54,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833052582] [2022-01-17 23:20:54,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:20:54,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:20:54,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:20:54,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:20:54,870 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:20:54,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833052582] [2022-01-17 23:20:54,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833052582] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:20:54,870 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:20:54,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:20:54,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042843613] [2022-01-17 23:20:54,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:20:54,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:20:54,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:20:54,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:20:54,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:20:54,871 INFO L87 Difference]: Start difference. First operand 2127 states and 5636 transitions. Second operand has 19 states, 19 states have (on average 5.578947368421052) internal successors, (106), 19 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:20:55,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:20:55,789 INFO L93 Difference]: Finished difference Result 3210 states and 8376 transitions. [2022-01-17 23:20:55,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-17 23:20:55,789 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.578947368421052) internal successors, (106), 19 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:20:55,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:20:55,808 INFO L225 Difference]: With dead ends: 3210 [2022-01-17 23:20:55,808 INFO L226 Difference]: Without dead ends: 3210 [2022-01-17 23:20:55,808 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=311, Invalid=745, Unknown=0, NotChecked=0, Total=1056 [2022-01-17 23:20:55,809 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 811 mSDsluCounter, 1739 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 811 SdHoareTripleChecker+Valid, 1931 SdHoareTripleChecker+Invalid, 636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:20:55,809 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [811 Valid, 1931 Invalid, 636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:20:55,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3210 states. [2022-01-17 23:20:55,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3210 to 2394. [2022-01-17 23:20:55,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2394 states, 2392 states have (on average 2.613294314381271) internal successors, (6251), 2393 states have internal predecessors, (6251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:20:55,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2394 states to 2394 states and 6251 transitions. [2022-01-17 23:20:55,855 INFO L78 Accepts]: Start accepts. Automaton has 2394 states and 6251 transitions. Word has length 106 [2022-01-17 23:20:55,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:20:55,856 INFO L470 AbstractCegarLoop]: Abstraction has 2394 states and 6251 transitions. [2022-01-17 23:20:55,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.578947368421052) internal successors, (106), 19 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:20:55,856 INFO L276 IsEmpty]: Start isEmpty. Operand 2394 states and 6251 transitions. [2022-01-17 23:20:55,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:20:55,880 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:20:55,880 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:20:55,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-17 23:20:55,880 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)] === [2022-01-17 23:20:55,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:20:55,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1674392960, now seen corresponding path program 2 times [2022-01-17 23:20:55,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:20:55,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463316596] [2022-01-17 23:20:55,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:20:55,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:20:55,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:20:56,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:20:56,326 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:20:56,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463316596] [2022-01-17 23:20:56,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463316596] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:20:56,327 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:20:56,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:20:56,327 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718466636] [2022-01-17 23:20:56,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:20:56,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:20:56,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:20:56,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:20:56,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:20:56,333 INFO L87 Difference]: Start difference. First operand 2394 states and 6251 transitions. Second operand has 19 states, 19 states have (on average 5.578947368421052) internal successors, (106), 19 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:20:57,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:20:57,340 INFO L93 Difference]: Finished difference Result 3390 states and 8690 transitions. [2022-01-17 23:20:57,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-17 23:20:57,341 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.578947368421052) internal successors, (106), 19 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:20:57,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:20:57,349 INFO L225 Difference]: With dead ends: 3390 [2022-01-17 23:20:57,350 INFO L226 Difference]: Without dead ends: 3390 [2022-01-17 23:20:57,350 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=340, Invalid=850, Unknown=0, NotChecked=0, Total=1190 [2022-01-17 23:20:57,351 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 1000 mSDsluCounter, 1802 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1000 SdHoareTripleChecker+Valid, 1994 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:20:57,351 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1000 Valid, 1994 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:20:57,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3390 states. [2022-01-17 23:20:57,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3390 to 2416. [2022-01-17 23:20:57,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2416 states, 2414 states have (on average 2.6114333057166528) internal successors, (6304), 2415 states have internal predecessors, (6304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:20:57,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2416 states to 2416 states and 6304 transitions. [2022-01-17 23:20:57,398 INFO L78 Accepts]: Start accepts. Automaton has 2416 states and 6304 transitions. Word has length 106 [2022-01-17 23:20:57,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:20:57,398 INFO L470 AbstractCegarLoop]: Abstraction has 2416 states and 6304 transitions. [2022-01-17 23:20:57,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.578947368421052) internal successors, (106), 19 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:20:57,398 INFO L276 IsEmpty]: Start isEmpty. Operand 2416 states and 6304 transitions. [2022-01-17 23:20:57,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:20:57,402 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:20:57,403 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:20:57,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-17 23:20:57,403 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)] === [2022-01-17 23:20:57,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:20:57,403 INFO L85 PathProgramCache]: Analyzing trace with hash -818669464, now seen corresponding path program 3 times [2022-01-17 23:20:57,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:20:57,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363327341] [2022-01-17 23:20:57,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:20:57,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:20:57,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:20:57,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:20:57,789 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:20:57,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363327341] [2022-01-17 23:20:57,789 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363327341] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:20:57,789 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:20:57,789 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:20:57,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610879191] [2022-01-17 23:20:57,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:20:57,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:20:57,790 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:20:57,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:20:57,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:20:57,790 INFO L87 Difference]: Start difference. First operand 2416 states and 6304 transitions. Second operand has 19 states, 19 states have (on average 5.578947368421052) internal successors, (106), 19 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:20:58,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:20:58,761 INFO L93 Difference]: Finished difference Result 2886 states and 7242 transitions. [2022-01-17 23:20:58,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-17 23:20:58,762 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.578947368421052) internal successors, (106), 19 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:20:58,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:20:58,768 INFO L225 Difference]: With dead ends: 2886 [2022-01-17 23:20:58,768 INFO L226 Difference]: Without dead ends: 2886 [2022-01-17 23:20:58,769 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=325, Invalid=865, Unknown=0, NotChecked=0, Total=1190 [2022-01-17 23:20:58,769 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 764 mSDsluCounter, 1650 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 764 SdHoareTripleChecker+Valid, 1814 SdHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:20:58,770 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [764 Valid, 1814 Invalid, 575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 537 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:20:58,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2886 states. [2022-01-17 23:20:58,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2886 to 2438. [2022-01-17 23:20:58,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2438 states, 2436 states have (on average 2.6096059113300494) internal successors, (6357), 2437 states have internal predecessors, (6357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:20:58,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2438 states to 2438 states and 6357 transitions. [2022-01-17 23:20:58,811 INFO L78 Accepts]: Start accepts. Automaton has 2438 states and 6357 transitions. Word has length 106 [2022-01-17 23:20:58,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:20:58,812 INFO L470 AbstractCegarLoop]: Abstraction has 2438 states and 6357 transitions. [2022-01-17 23:20:58,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.578947368421052) internal successors, (106), 19 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:20:58,812 INFO L276 IsEmpty]: Start isEmpty. Operand 2438 states and 6357 transitions. [2022-01-17 23:20:58,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:20:58,816 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:20:58,816 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:20:58,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-17 23:20:58,816 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)] === [2022-01-17 23:20:58,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:20:58,817 INFO L85 PathProgramCache]: Analyzing trace with hash -415537680, now seen corresponding path program 4 times [2022-01-17 23:20:58,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:20:58,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141463888] [2022-01-17 23:20:58,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:20:58,817 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:20:58,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:20:59,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:20:59,157 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:20:59,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141463888] [2022-01-17 23:20:59,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141463888] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:20:59,157 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:20:59,157 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:20:59,157 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749312895] [2022-01-17 23:20:59,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:20:59,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:20:59,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:20:59,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:20:59,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:20:59,158 INFO L87 Difference]: Start difference. First operand 2438 states and 6357 transitions. Second operand has 19 states, 19 states have (on average 5.578947368421052) internal successors, (106), 19 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:00,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:00,061 INFO L93 Difference]: Finished difference Result 2952 states and 7401 transitions. [2022-01-17 23:21:00,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-17 23:21:00,062 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.578947368421052) internal successors, (106), 19 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:21:00,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:00,067 INFO L225 Difference]: With dead ends: 2952 [2022-01-17 23:21:00,067 INFO L226 Difference]: Without dead ends: 2952 [2022-01-17 23:21:00,067 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=310, Invalid=880, Unknown=0, NotChecked=0, Total=1190 [2022-01-17 23:21:00,068 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 728 mSDsluCounter, 1660 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 728 SdHoareTripleChecker+Valid, 1804 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:00,068 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [728 Valid, 1804 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:21:00,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2952 states. [2022-01-17 23:21:00,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2952 to 2482. [2022-01-17 23:21:00,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2482 states, 2480 states have (on average 2.606048387096774) internal successors, (6463), 2481 states have internal predecessors, (6463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:00,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2482 states to 2482 states and 6463 transitions. [2022-01-17 23:21:00,106 INFO L78 Accepts]: Start accepts. Automaton has 2482 states and 6463 transitions. Word has length 106 [2022-01-17 23:21:00,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:00,107 INFO L470 AbstractCegarLoop]: Abstraction has 2482 states and 6463 transitions. [2022-01-17 23:21:00,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.578947368421052) internal successors, (106), 19 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:00,107 INFO L276 IsEmpty]: Start isEmpty. Operand 2482 states and 6463 transitions. [2022-01-17 23:21:00,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:21:00,111 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:00,111 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:21:00,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-17 23:21:00,112 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)] === [2022-01-17 23:21:00,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:00,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1405008360, now seen corresponding path program 5 times [2022-01-17 23:21:00,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:00,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5257631] [2022-01-17 23:21:00,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:00,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:00,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:00,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:00,846 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:00,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5257631] [2022-01-17 23:21:00,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5257631] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:00,847 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:00,847 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-17 23:21:00,847 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344151164] [2022-01-17 23:21:00,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:00,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-17 23:21:00,848 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:00,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-17 23:21:00,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=564, Unknown=0, NotChecked=0, Total=650 [2022-01-17 23:21:00,848 INFO L87 Difference]: Start difference. First operand 2482 states and 6463 transitions. Second operand has 26 states, 26 states have (on average 4.076923076923077) internal successors, (106), 26 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:05,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:05,086 INFO L93 Difference]: Finished difference Result 5781 states and 14794 transitions. [2022-01-17 23:21:05,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:21:05,087 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.076923076923077) internal successors, (106), 26 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:21:05,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:05,096 INFO L225 Difference]: With dead ends: 5781 [2022-01-17 23:21:05,096 INFO L226 Difference]: Without dead ends: 5781 [2022-01-17 23:21:05,097 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=798, Invalid=1854, Unknown=0, NotChecked=0, Total=2652 [2022-01-17 23:21:05,098 INFO L933 BasicCegarLoop]: 292 mSDtfsCounter, 1304 mSDsluCounter, 3099 mSDsCounter, 0 mSdLazyCounter, 1365 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1304 SdHoareTripleChecker+Valid, 3262 SdHoareTripleChecker+Invalid, 1469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 1365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:05,098 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1304 Valid, 3262 Invalid, 1469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 1365 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-17 23:21:05,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5781 states. [2022-01-17 23:21:05,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5781 to 3536. [2022-01-17 23:21:05,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3536 states, 3534 states have (on average 2.682795698924731) internal successors, (9481), 3535 states have internal predecessors, (9481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:05,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3536 states to 3536 states and 9481 transitions. [2022-01-17 23:21:05,172 INFO L78 Accepts]: Start accepts. Automaton has 3536 states and 9481 transitions. Word has length 106 [2022-01-17 23:21:05,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:05,172 INFO L470 AbstractCegarLoop]: Abstraction has 3536 states and 9481 transitions. [2022-01-17 23:21:05,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.076923076923077) internal successors, (106), 26 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:05,173 INFO L276 IsEmpty]: Start isEmpty. Operand 3536 states and 9481 transitions. [2022-01-17 23:21:05,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:21:05,179 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:05,179 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:21:05,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-17 23:21:05,180 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)] === [2022-01-17 23:21:05,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:05,180 INFO L85 PathProgramCache]: Analyzing trace with hash -2119262854, now seen corresponding path program 6 times [2022-01-17 23:21:05,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:05,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424967423] [2022-01-17 23:21:05,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:05,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:05,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:05,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:05,531 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:05,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424967423] [2022-01-17 23:21:05,531 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424967423] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:05,531 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:05,531 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:21:05,531 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503251518] [2022-01-17 23:21:05,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:05,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:21:05,532 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:05,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:21:05,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:21:05,532 INFO L87 Difference]: Start difference. First operand 3536 states and 9481 transitions. Second operand has 19 states, 19 states have (on average 5.578947368421052) internal successors, (106), 19 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:06,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:06,474 INFO L93 Difference]: Finished difference Result 4447 states and 11450 transitions. [2022-01-17 23:21:06,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-17 23:21:06,474 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.578947368421052) internal successors, (106), 19 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:21:06,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:06,483 INFO L225 Difference]: With dead ends: 4447 [2022-01-17 23:21:06,483 INFO L226 Difference]: Without dead ends: 4447 [2022-01-17 23:21:06,483 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=340, Invalid=850, Unknown=0, NotChecked=0, Total=1190 [2022-01-17 23:21:06,484 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 760 mSDsluCounter, 2230 mSDsCounter, 0 mSdLazyCounter, 787 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 760 SdHoareTripleChecker+Valid, 2381 SdHoareTripleChecker+Invalid, 828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:06,484 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [760 Valid, 2381 Invalid, 828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 787 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:21:06,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4447 states. [2022-01-17 23:21:06,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4447 to 2983. [2022-01-17 23:21:06,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2983 states, 2981 states have (on average 2.644750083864475) internal successors, (7884), 2982 states have internal predecessors, (7884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:06,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2983 states to 2983 states and 7884 transitions. [2022-01-17 23:21:06,539 INFO L78 Accepts]: Start accepts. Automaton has 2983 states and 7884 transitions. Word has length 106 [2022-01-17 23:21:06,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:06,540 INFO L470 AbstractCegarLoop]: Abstraction has 2983 states and 7884 transitions. [2022-01-17 23:21:06,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.578947368421052) internal successors, (106), 19 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:06,540 INFO L276 IsEmpty]: Start isEmpty. Operand 2983 states and 7884 transitions. [2022-01-17 23:21:06,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:21:06,545 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:06,545 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:21:06,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-17 23:21:06,545 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)] === [2022-01-17 23:21:06,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:06,546 INFO L85 PathProgramCache]: Analyzing trace with hash 660437846, now seen corresponding path program 7 times [2022-01-17 23:21:06,546 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:06,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332722933] [2022-01-17 23:21:06,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:06,546 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:06,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:07,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:07,255 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:07,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332722933] [2022-01-17 23:21:07,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332722933] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:07,255 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:07,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:21:07,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023696408] [2022-01-17 23:21:07,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:07,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:21:07,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:07,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:21:07,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=524, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:21:07,256 INFO L87 Difference]: Start difference. First operand 2983 states and 7884 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:11,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:11,619 INFO L93 Difference]: Finished difference Result 6498 states and 16535 transitions. [2022-01-17 23:21:11,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-17 23:21:11,620 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:21:11,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:11,630 INFO L225 Difference]: With dead ends: 6498 [2022-01-17 23:21:11,630 INFO L226 Difference]: Without dead ends: 6498 [2022-01-17 23:21:11,631 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=842, Invalid=1914, Unknown=0, NotChecked=0, Total=2756 [2022-01-17 23:21:11,631 INFO L933 BasicCegarLoop]: 309 mSDtfsCounter, 1481 mSDsluCounter, 3116 mSDsCounter, 0 mSdLazyCounter, 1220 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1481 SdHoareTripleChecker+Valid, 3306 SdHoareTripleChecker+Invalid, 1341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 1220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:11,632 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1481 Valid, 3306 Invalid, 1341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 1220 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:21:11,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6498 states. [2022-01-17 23:21:11,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6498 to 3043. [2022-01-17 23:21:11,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3043 states, 3041 states have (on average 2.6511016113120682) internal successors, (8062), 3042 states have internal predecessors, (8062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:11,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3043 states to 3043 states and 8062 transitions. [2022-01-17 23:21:11,701 INFO L78 Accepts]: Start accepts. Automaton has 3043 states and 8062 transitions. Word has length 106 [2022-01-17 23:21:11,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:11,702 INFO L470 AbstractCegarLoop]: Abstraction has 3043 states and 8062 transitions. [2022-01-17 23:21:11,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:11,702 INFO L276 IsEmpty]: Start isEmpty. Operand 3043 states and 8062 transitions. [2022-01-17 23:21:11,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:21:11,707 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:11,707 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:21:11,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-17 23:21:11,707 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)] === [2022-01-17 23:21:11,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:11,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1103013874, now seen corresponding path program 8 times [2022-01-17 23:21:11,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:11,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415544945] [2022-01-17 23:21:11,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:11,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:11,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:12,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:12,278 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:12,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415544945] [2022-01-17 23:21:12,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415544945] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:12,279 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:12,279 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:21:12,279 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844074450] [2022-01-17 23:21:12,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:12,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:21:12,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:12,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:21:12,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:21:12,280 INFO L87 Difference]: Start difference. First operand 3043 states and 8062 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:16,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:16,310 INFO L93 Difference]: Finished difference Result 6094 states and 15462 transitions. [2022-01-17 23:21:16,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-17 23:21:16,310 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:21:16,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:16,318 INFO L225 Difference]: With dead ends: 6094 [2022-01-17 23:21:16,319 INFO L226 Difference]: Without dead ends: 6094 [2022-01-17 23:21:16,319 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 309 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=835, Invalid=2027, Unknown=0, NotChecked=0, Total=2862 [2022-01-17 23:21:16,320 INFO L933 BasicCegarLoop]: 316 mSDtfsCounter, 1430 mSDsluCounter, 3191 mSDsCounter, 0 mSdLazyCounter, 1284 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1430 SdHoareTripleChecker+Valid, 3381 SdHoareTripleChecker+Invalid, 1397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:16,320 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1430 Valid, 3381 Invalid, 1397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1284 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:21:16,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6094 states. [2022-01-17 23:21:16,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6094 to 3045. [2022-01-17 23:21:16,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3045 states, 3043 states have (on average 2.6510023003614855) internal successors, (8067), 3044 states have internal predecessors, (8067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:16,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3045 states to 3045 states and 8067 transitions. [2022-01-17 23:21:16,380 INFO L78 Accepts]: Start accepts. Automaton has 3045 states and 8067 transitions. Word has length 106 [2022-01-17 23:21:16,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:16,380 INFO L470 AbstractCegarLoop]: Abstraction has 3045 states and 8067 transitions. [2022-01-17 23:21:16,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:16,380 INFO L276 IsEmpty]: Start isEmpty. Operand 3045 states and 8067 transitions. [2022-01-17 23:21:16,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:21:16,385 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:16,385 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:21:16,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-17 23:21:16,386 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)] === [2022-01-17 23:21:16,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:16,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1245968858, now seen corresponding path program 9 times [2022-01-17 23:21:16,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:16,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718109883] [2022-01-17 23:21:16,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:16,387 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:16,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:17,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:17,062 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:17,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718109883] [2022-01-17 23:21:17,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718109883] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:17,062 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:17,063 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:21:17,063 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924569324] [2022-01-17 23:21:17,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:17,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:21:17,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:17,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:21:17,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:21:17,064 INFO L87 Difference]: Start difference. First operand 3045 states and 8067 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:21,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:21,222 INFO L93 Difference]: Finished difference Result 6546 states and 16442 transitions. [2022-01-17 23:21:21,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-17 23:21:21,223 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:21:21,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:21,230 INFO L225 Difference]: With dead ends: 6546 [2022-01-17 23:21:21,230 INFO L226 Difference]: Without dead ends: 6546 [2022-01-17 23:21:21,230 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 322 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=819, Invalid=2043, Unknown=0, NotChecked=0, Total=2862 [2022-01-17 23:21:21,231 INFO L933 BasicCegarLoop]: 311 mSDtfsCounter, 1501 mSDsluCounter, 3189 mSDsCounter, 0 mSdLazyCounter, 1346 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1501 SdHoareTripleChecker+Valid, 3352 SdHoareTripleChecker+Invalid, 1452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 1346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:21,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1501 Valid, 3352 Invalid, 1452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 1346 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:21:21,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6546 states. [2022-01-17 23:21:21,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6546 to 3047. [2022-01-17 23:21:21,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3047 states, 3045 states have (on average 2.6509031198686372) internal successors, (8072), 3046 states have internal predecessors, (8072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:21,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3047 states to 3047 states and 8072 transitions. [2022-01-17 23:21:21,279 INFO L78 Accepts]: Start accepts. Automaton has 3047 states and 8072 transitions. Word has length 106 [2022-01-17 23:21:21,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:21,279 INFO L470 AbstractCegarLoop]: Abstraction has 3047 states and 8072 transitions. [2022-01-17 23:21:21,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:21,280 INFO L276 IsEmpty]: Start isEmpty. Operand 3047 states and 8072 transitions. [2022-01-17 23:21:21,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:21:21,284 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:21,284 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:21:21,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-17 23:21:21,284 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)] === [2022-01-17 23:21:21,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:21,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1645960358, now seen corresponding path program 10 times [2022-01-17 23:21:21,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:21,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006964479] [2022-01-17 23:21:21,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:21,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:21,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:21,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:21,825 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:21,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006964479] [2022-01-17 23:21:21,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006964479] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:21,825 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:21,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:21:21,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952824709] [2022-01-17 23:21:21,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:21,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:21:21,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:21,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:21:21,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:21:21,826 INFO L87 Difference]: Start difference. First operand 3047 states and 8072 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:24,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:24,380 INFO L93 Difference]: Finished difference Result 5281 states and 13580 transitions. [2022-01-17 23:21:24,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-17 23:21:24,380 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:21:24,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:24,386 INFO L225 Difference]: With dead ends: 5281 [2022-01-17 23:21:24,386 INFO L226 Difference]: Without dead ends: 5281 [2022-01-17 23:21:24,387 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=541, Invalid=1529, Unknown=0, NotChecked=0, Total=2070 [2022-01-17 23:21:24,387 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 1040 mSDsluCounter, 2868 mSDsCounter, 0 mSdLazyCounter, 1196 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1040 SdHoareTripleChecker+Valid, 3004 SdHoareTripleChecker+Invalid, 1242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:24,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1040 Valid, 3004 Invalid, 1242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1196 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:21:24,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5281 states. [2022-01-17 23:21:24,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5281 to 3051. [2022-01-17 23:21:24,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3051 states, 3049 states have (on average 2.6507051492292555) internal successors, (8082), 3050 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) [2022-01-17 23:21:24,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3051 states to 3051 states and 8082 transitions. [2022-01-17 23:21:24,436 INFO L78 Accepts]: Start accepts. Automaton has 3051 states and 8082 transitions. Word has length 106 [2022-01-17 23:21:24,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:24,436 INFO L470 AbstractCegarLoop]: Abstraction has 3051 states and 8082 transitions. [2022-01-17 23:21:24,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:24,436 INFO L276 IsEmpty]: Start isEmpty. Operand 3051 states and 8082 transitions. [2022-01-17 23:21:24,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:21:24,444 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:24,444 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:21:24,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-17 23:21:24,444 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)] === [2022-01-17 23:21:24,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:24,444 INFO L85 PathProgramCache]: Analyzing trace with hash 446314670, now seen corresponding path program 11 times [2022-01-17 23:21:24,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:24,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895332219] [2022-01-17 23:21:24,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:24,445 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:24,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:24,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:24,761 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:24,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895332219] [2022-01-17 23:21:24,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895332219] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:24,762 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:24,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:21:24,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425561237] [2022-01-17 23:21:24,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:24,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:21:24,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:24,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:21:24,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:21:24,763 INFO L87 Difference]: Start difference. First operand 3051 states and 8082 transitions. Second operand has 19 states, 19 states have (on average 5.578947368421052) internal successors, (106), 19 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:25,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:25,660 INFO L93 Difference]: Finished difference Result 3684 states and 9351 transitions. [2022-01-17 23:21:25,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-17 23:21:25,661 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.578947368421052) internal successors, (106), 19 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:21:25,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:25,666 INFO L225 Difference]: With dead ends: 3684 [2022-01-17 23:21:25,666 INFO L226 Difference]: Without dead ends: 3684 [2022-01-17 23:21:25,666 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=325, Invalid=865, Unknown=0, NotChecked=0, Total=1190 [2022-01-17 23:21:25,667 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 676 mSDsluCounter, 1813 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 676 SdHoareTripleChecker+Valid, 1946 SdHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:25,667 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [676 Valid, 1946 Invalid, 624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:21:25,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3684 states. [2022-01-17 23:21:25,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3684 to 3086. [2022-01-17 23:21:25,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3086 states, 3084 states have (on average 2.6475356679636834) internal successors, (8165), 3085 states have internal predecessors, (8165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:25,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3086 states to 3086 states and 8165 transitions. [2022-01-17 23:21:25,717 INFO L78 Accepts]: Start accepts. Automaton has 3086 states and 8165 transitions. Word has length 106 [2022-01-17 23:21:25,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:25,717 INFO L470 AbstractCegarLoop]: Abstraction has 3086 states and 8165 transitions. [2022-01-17 23:21:25,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.578947368421052) internal successors, (106), 19 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:25,717 INFO L276 IsEmpty]: Start isEmpty. Operand 3086 states and 8165 transitions. [2022-01-17 23:21:25,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:21:25,722 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:25,722 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:21:25,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-17 23:21:25,722 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)] === [2022-01-17 23:21:25,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:25,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1355234986, now seen corresponding path program 12 times [2022-01-17 23:21:25,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:25,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487879132] [2022-01-17 23:21:25,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:25,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:25,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:26,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:26,316 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:26,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487879132] [2022-01-17 23:21:26,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487879132] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:26,316 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:26,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:21:26,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346531626] [2022-01-17 23:21:26,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:26,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:21:26,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:26,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:21:26,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=524, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:21:26,318 INFO L87 Difference]: Start difference. First operand 3086 states and 8165 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:29,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:29,631 INFO L93 Difference]: Finished difference Result 7781 states and 19842 transitions. [2022-01-17 23:21:29,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:21:29,631 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:21:29,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:29,639 INFO L225 Difference]: With dead ends: 7781 [2022-01-17 23:21:29,639 INFO L226 Difference]: Without dead ends: 7781 [2022-01-17 23:21:29,639 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=776, Invalid=1774, Unknown=0, NotChecked=0, Total=2550 [2022-01-17 23:21:29,640 INFO L933 BasicCegarLoop]: 309 mSDtfsCounter, 1176 mSDsluCounter, 3021 mSDsCounter, 0 mSdLazyCounter, 1310 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1176 SdHoareTripleChecker+Valid, 3194 SdHoareTripleChecker+Invalid, 1389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 1310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:29,640 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1176 Valid, 3194 Invalid, 1389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 1310 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:21:29,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7781 states. [2022-01-17 23:21:29,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7781 to 3160. [2022-01-17 23:21:29,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3160 states, 3158 states have (on average 2.6551614946168463) internal successors, (8385), 3159 states have internal predecessors, (8385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:29,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3160 states to 3160 states and 8385 transitions. [2022-01-17 23:21:29,697 INFO L78 Accepts]: Start accepts. Automaton has 3160 states and 8385 transitions. Word has length 106 [2022-01-17 23:21:29,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:29,698 INFO L470 AbstractCegarLoop]: Abstraction has 3160 states and 8385 transitions. [2022-01-17 23:21:29,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:29,698 INFO L276 IsEmpty]: Start isEmpty. Operand 3160 states and 8385 transitions. [2022-01-17 23:21:29,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:21:29,702 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:29,702 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:21:29,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-17 23:21:29,702 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)] === [2022-01-17 23:21:29,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:29,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1374865920, now seen corresponding path program 13 times [2022-01-17 23:21:29,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:29,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114485195] [2022-01-17 23:21:29,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:29,703 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:29,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:30,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:30,306 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:30,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114485195] [2022-01-17 23:21:30,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114485195] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:30,306 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:30,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:21:30,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556967736] [2022-01-17 23:21:30,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:30,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:21:30,307 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:30,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:21:30,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:21:30,307 INFO L87 Difference]: Start difference. First operand 3160 states and 8385 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:33,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:33,769 INFO L93 Difference]: Finished difference Result 7505 states and 19145 transitions. [2022-01-17 23:21:33,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:21:33,770 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:21:33,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:33,778 INFO L225 Difference]: With dead ends: 7505 [2022-01-17 23:21:33,779 INFO L226 Difference]: Without dead ends: 7505 [2022-01-17 23:21:33,779 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=778, Invalid=1874, Unknown=0, NotChecked=0, Total=2652 [2022-01-17 23:21:33,780 INFO L933 BasicCegarLoop]: 309 mSDtfsCounter, 1185 mSDsluCounter, 2918 mSDsCounter, 0 mSdLazyCounter, 1224 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1185 SdHoareTripleChecker+Valid, 3096 SdHoareTripleChecker+Invalid, 1318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:33,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1185 Valid, 3096 Invalid, 1318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 1224 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:21:33,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7505 states. [2022-01-17 23:21:33,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7505 to 3146. [2022-01-17 23:21:33,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3146 states, 3144 states have (on average 2.6536259541984735) internal successors, (8343), 3145 states have internal predecessors, (8343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:33,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3146 states to 3146 states and 8343 transitions. [2022-01-17 23:21:33,843 INFO L78 Accepts]: Start accepts. Automaton has 3146 states and 8343 transitions. Word has length 106 [2022-01-17 23:21:33,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:33,843 INFO L470 AbstractCegarLoop]: Abstraction has 3146 states and 8343 transitions. [2022-01-17 23:21:33,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:33,844 INFO L276 IsEmpty]: Start isEmpty. Operand 3146 states and 8343 transitions. [2022-01-17 23:21:33,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:21:33,848 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:33,848 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:21:33,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-17 23:21:33,849 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)] === [2022-01-17 23:21:33,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:33,849 INFO L85 PathProgramCache]: Analyzing trace with hash 2065975370, now seen corresponding path program 14 times [2022-01-17 23:21:33,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:33,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217654154] [2022-01-17 23:21:33,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:33,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:33,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:34,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:34,464 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:34,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217654154] [2022-01-17 23:21:34,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217654154] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:34,465 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:34,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:21:34,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609942889] [2022-01-17 23:21:34,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:34,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:21:34,465 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:34,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:21:34,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:21:34,466 INFO L87 Difference]: Start difference. First operand 3146 states and 8343 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:37,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:37,481 INFO L93 Difference]: Finished difference Result 6894 states and 17583 transitions. [2022-01-17 23:21:37,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:21:37,481 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:21:37,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:37,490 INFO L225 Difference]: With dead ends: 6894 [2022-01-17 23:21:37,491 INFO L226 Difference]: Without dead ends: 6894 [2022-01-17 23:21:37,491 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=592, Invalid=1570, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:21:37,496 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 1279 mSDsluCounter, 2765 mSDsCounter, 0 mSdLazyCounter, 1154 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1279 SdHoareTripleChecker+Valid, 2905 SdHoareTripleChecker+Invalid, 1241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 1154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:37,496 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1279 Valid, 2905 Invalid, 1241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 1154 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:21:37,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6894 states. [2022-01-17 23:21:37,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6894 to 3148. [2022-01-17 23:21:37,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3148 states, 3146 states have (on average 2.653528289891926) internal successors, (8348), 3147 states have internal predecessors, (8348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:37,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3148 states to 3148 states and 8348 transitions. [2022-01-17 23:21:37,561 INFO L78 Accepts]: Start accepts. Automaton has 3148 states and 8348 transitions. Word has length 106 [2022-01-17 23:21:37,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:37,561 INFO L470 AbstractCegarLoop]: Abstraction has 3148 states and 8348 transitions. [2022-01-17 23:21:37,562 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:37,562 INFO L276 IsEmpty]: Start isEmpty. Operand 3148 states and 8348 transitions. [2022-01-17 23:21:37,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:21:37,566 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:37,566 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:21:37,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-17 23:21:37,567 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)] === [2022-01-17 23:21:37,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:37,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1363110044, now seen corresponding path program 15 times [2022-01-17 23:21:37,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:37,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527230694] [2022-01-17 23:21:37,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:37,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:37,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:38,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:38,116 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:38,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527230694] [2022-01-17 23:21:38,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527230694] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:38,116 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:38,116 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:21:38,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525777426] [2022-01-17 23:21:38,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:38,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:21:38,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:38,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:21:38,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=524, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:21:38,117 INFO L87 Difference]: Start difference. First operand 3148 states and 8348 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:41,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:41,869 INFO L93 Difference]: Finished difference Result 8159 states and 20676 transitions. [2022-01-17 23:21:41,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:21:41,869 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:21:41,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:41,877 INFO L225 Difference]: With dead ends: 8159 [2022-01-17 23:21:41,877 INFO L226 Difference]: Without dead ends: 8159 [2022-01-17 23:21:41,878 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=783, Invalid=1767, Unknown=0, NotChecked=0, Total=2550 [2022-01-17 23:21:41,878 INFO L933 BasicCegarLoop]: 351 mSDtfsCounter, 1103 mSDsluCounter, 3311 mSDsCounter, 0 mSdLazyCounter, 1417 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1103 SdHoareTripleChecker+Valid, 3501 SdHoareTripleChecker+Invalid, 1477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:41,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1103 Valid, 3501 Invalid, 1477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1417 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:21:41,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8159 states. [2022-01-17 23:21:41,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8159 to 3204. [2022-01-17 23:21:41,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3204 states, 3202 states have (on average 2.659587757651468) internal successors, (8516), 3203 states have internal predecessors, (8516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:41,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3204 states to 3204 states and 8516 transitions. [2022-01-17 23:21:41,935 INFO L78 Accepts]: Start accepts. Automaton has 3204 states and 8516 transitions. Word has length 106 [2022-01-17 23:21:41,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:41,935 INFO L470 AbstractCegarLoop]: Abstraction has 3204 states and 8516 transitions. [2022-01-17 23:21:41,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:41,935 INFO L276 IsEmpty]: Start isEmpty. Operand 3204 states and 8516 transitions. [2022-01-17 23:21:41,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:21:41,939 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:41,939 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:21:41,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-17 23:21:41,940 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)] === [2022-01-17 23:21:41,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:41,940 INFO L85 PathProgramCache]: Analyzing trace with hash 906270130, now seen corresponding path program 16 times [2022-01-17 23:21:41,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:41,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046405959] [2022-01-17 23:21:41,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:41,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:41,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:42,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:42,522 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:42,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046405959] [2022-01-17 23:21:42,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046405959] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:42,522 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:42,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:21:42,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723899674] [2022-01-17 23:21:42,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:42,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:21:42,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:42,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:21:42,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:21:42,523 INFO L87 Difference]: Start difference. First operand 3204 states and 8516 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:47,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:47,298 INFO L93 Difference]: Finished difference Result 7894 states and 20002 transitions. [2022-01-17 23:21:47,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:21:47,299 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:21:47,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:47,307 INFO L225 Difference]: With dead ends: 7894 [2022-01-17 23:21:47,307 INFO L226 Difference]: Without dead ends: 7894 [2022-01-17 23:21:47,308 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=779, Invalid=1873, Unknown=0, NotChecked=0, Total=2652 [2022-01-17 23:21:47,308 INFO L933 BasicCegarLoop]: 339 mSDtfsCounter, 1030 mSDsluCounter, 3802 mSDsCounter, 0 mSdLazyCounter, 1649 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1030 SdHoareTripleChecker+Valid, 3974 SdHoareTripleChecker+Invalid, 1707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:47,309 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1030 Valid, 3974 Invalid, 1707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1649 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-17 23:21:47,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7894 states. [2022-01-17 23:21:47,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7894 to 3162. [2022-01-17 23:21:47,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3162 states, 3160 states have (on average 2.6550632911392404) internal successors, (8390), 3161 states have internal predecessors, (8390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:47,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3162 states to 3162 states and 8390 transitions. [2022-01-17 23:21:47,369 INFO L78 Accepts]: Start accepts. Automaton has 3162 states and 8390 transitions. Word has length 106 [2022-01-17 23:21:47,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:47,369 INFO L470 AbstractCegarLoop]: Abstraction has 3162 states and 8390 transitions. [2022-01-17 23:21:47,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:47,369 INFO L276 IsEmpty]: Start isEmpty. Operand 3162 states and 8390 transitions. [2022-01-17 23:21:47,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:21:47,375 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:47,375 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:21:47,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-17 23:21:47,375 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)] === [2022-01-17 23:21:47,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:47,375 INFO L85 PathProgramCache]: Analyzing trace with hash -543296660, now seen corresponding path program 17 times [2022-01-17 23:21:47,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:47,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103784067] [2022-01-17 23:21:47,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:47,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:47,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:47,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:47,958 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:47,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103784067] [2022-01-17 23:21:47,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103784067] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:47,958 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:47,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:21:47,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484129539] [2022-01-17 23:21:47,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:47,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:21:47,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:47,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:21:47,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:21:47,959 INFO L87 Difference]: Start difference. First operand 3162 states and 8390 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:50,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:50,948 INFO L93 Difference]: Finished difference Result 7237 states and 18366 transitions. [2022-01-17 23:21:50,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:21:50,948 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:21:50,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:50,957 INFO L225 Difference]: With dead ends: 7237 [2022-01-17 23:21:50,957 INFO L226 Difference]: Without dead ends: 7237 [2022-01-17 23:21:50,958 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=593, Invalid=1569, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:21:50,958 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 1332 mSDsluCounter, 2802 mSDsCounter, 0 mSdLazyCounter, 1142 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1332 SdHoareTripleChecker+Valid, 2955 SdHoareTripleChecker+Invalid, 1226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 1142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:50,958 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1332 Valid, 2955 Invalid, 1226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 1142 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:21:50,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7237 states. [2022-01-17 23:21:51,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7237 to 3148. [2022-01-17 23:21:51,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3148 states, 3146 states have (on average 2.653528289891926) internal successors, (8348), 3147 states have internal predecessors, (8348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:51,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3148 states to 3148 states and 8348 transitions. [2022-01-17 23:21:51,015 INFO L78 Accepts]: Start accepts. Automaton has 3148 states and 8348 transitions. Word has length 106 [2022-01-17 23:21:51,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:51,015 INFO L470 AbstractCegarLoop]: Abstraction has 3148 states and 8348 transitions. [2022-01-17 23:21:51,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:51,015 INFO L276 IsEmpty]: Start isEmpty. Operand 3148 states and 8348 transitions. [2022-01-17 23:21:51,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:21:51,021 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:51,021 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:21:51,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-17 23:21:51,021 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)] === [2022-01-17 23:21:51,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:51,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1929338162, now seen corresponding path program 18 times [2022-01-17 23:21:51,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:51,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608963977] [2022-01-17 23:21:51,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:51,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:51,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:51,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:51,558 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:51,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608963977] [2022-01-17 23:21:51,559 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608963977] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:51,559 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:51,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:21:51,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386484029] [2022-01-17 23:21:51,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:51,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:21:51,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:51,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:21:51,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:21:51,562 INFO L87 Difference]: Start difference. First operand 3148 states and 8348 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:54,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:54,156 INFO L93 Difference]: Finished difference Result 6317 states and 16015 transitions. [2022-01-17 23:21:54,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:21:54,156 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:21:54,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:54,164 INFO L225 Difference]: With dead ends: 6317 [2022-01-17 23:21:54,165 INFO L226 Difference]: Without dead ends: 6317 [2022-01-17 23:21:54,165 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=577, Invalid=1585, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:21:54,166 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 1086 mSDsluCounter, 2862 mSDsCounter, 0 mSdLazyCounter, 1240 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1086 SdHoareTripleChecker+Valid, 2981 SdHoareTripleChecker+Invalid, 1301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:54,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1086 Valid, 2981 Invalid, 1301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1240 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:21:54,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6317 states. [2022-01-17 23:21:54,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6317 to 3150. [2022-01-17 23:21:54,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3150 states, 3148 states have (on average 2.653430749682338) internal successors, (8353), 3149 states have internal predecessors, (8353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:54,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3150 states to 3150 states and 8353 transitions. [2022-01-17 23:21:54,218 INFO L78 Accepts]: Start accepts. Automaton has 3150 states and 8353 transitions. Word has length 106 [2022-01-17 23:21:54,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:54,219 INFO L470 AbstractCegarLoop]: Abstraction has 3150 states and 8353 transitions. [2022-01-17 23:21:54,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:54,219 INFO L276 IsEmpty]: Start isEmpty. Operand 3150 states and 8353 transitions. [2022-01-17 23:21:54,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:21:54,224 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:54,224 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:21:54,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-17 23:21:54,224 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)] === [2022-01-17 23:21:54,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:54,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1691173888, now seen corresponding path program 19 times [2022-01-17 23:21:54,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:54,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308248058] [2022-01-17 23:21:54,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:54,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:54,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:54,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:54,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:54,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308248058] [2022-01-17 23:21:54,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308248058] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:54,861 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:54,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:21:54,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941688621] [2022-01-17 23:21:54,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:54,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:21:54,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:54,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:21:54,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:21:54,863 INFO L87 Difference]: Start difference. First operand 3150 states and 8353 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:57,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:57,777 INFO L93 Difference]: Finished difference Result 6217 states and 15820 transitions. [2022-01-17 23:21:57,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:21:57,777 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:21:57,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:57,786 INFO L225 Difference]: With dead ends: 6217 [2022-01-17 23:21:57,786 INFO L226 Difference]: Without dead ends: 6217 [2022-01-17 23:21:57,787 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=578, Invalid=1584, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:21:57,787 INFO L933 BasicCegarLoop]: 277 mSDtfsCounter, 1008 mSDsluCounter, 3180 mSDsCounter, 0 mSdLazyCounter, 1288 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1008 SdHoareTripleChecker+Valid, 3298 SdHoareTripleChecker+Invalid, 1343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:57,787 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1008 Valid, 3298 Invalid, 1343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1288 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:21:57,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6217 states. [2022-01-17 23:21:57,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6217 to 3150. [2022-01-17 23:21:57,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3150 states, 3148 states have (on average 2.653430749682338) internal successors, (8353), 3149 states have internal predecessors, (8353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:57,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3150 states to 3150 states and 8353 transitions. [2022-01-17 23:21:57,840 INFO L78 Accepts]: Start accepts. Automaton has 3150 states and 8353 transitions. Word has length 106 [2022-01-17 23:21:57,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:57,840 INFO L470 AbstractCegarLoop]: Abstraction has 3150 states and 8353 transitions. [2022-01-17 23:21:57,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:57,840 INFO L276 IsEmpty]: Start isEmpty. Operand 3150 states and 8353 transitions. [2022-01-17 23:21:57,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:21:57,845 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:57,845 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:21:57,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-17 23:21:57,845 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)] === [2022-01-17 23:21:57,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:57,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1054340822, now seen corresponding path program 20 times [2022-01-17 23:21:57,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:57,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749206217] [2022-01-17 23:21:57,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:57,846 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:57,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:58,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:58,392 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:58,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749206217] [2022-01-17 23:21:58,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749206217] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:58,393 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:58,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:21:58,393 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006377729] [2022-01-17 23:21:58,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:58,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:21:58,393 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:58,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:21:58,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:21:58,394 INFO L87 Difference]: Start difference. First operand 3150 states and 8353 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:00,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:00,793 INFO L93 Difference]: Finished difference Result 5618 states and 14341 transitions. [2022-01-17 23:22:00,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-17 23:22:00,793 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:22:00,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:00,800 INFO L225 Difference]: With dead ends: 5618 [2022-01-17 23:22:00,800 INFO L226 Difference]: Without dead ends: 5618 [2022-01-17 23:22:00,801 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=526, Invalid=1544, Unknown=0, NotChecked=0, Total=2070 [2022-01-17 23:22:00,801 INFO L933 BasicCegarLoop]: 270 mSDtfsCounter, 996 mSDsluCounter, 2982 mSDsCounter, 0 mSdLazyCounter, 1176 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 996 SdHoareTripleChecker+Valid, 3104 SdHoareTripleChecker+Invalid, 1221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:00,801 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [996 Valid, 3104 Invalid, 1221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1176 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:22:00,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5618 states. [2022-01-17 23:22:00,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5618 to 3154. [2022-01-17 23:22:00,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3154 states, 3152 states have (on average 2.653236040609137) internal successors, (8363), 3153 states have internal predecessors, (8363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:00,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3154 states to 3154 states and 8363 transitions. [2022-01-17 23:22:00,868 INFO L78 Accepts]: Start accepts. Automaton has 3154 states and 8363 transitions. Word has length 106 [2022-01-17 23:22:00,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:00,868 INFO L470 AbstractCegarLoop]: Abstraction has 3154 states and 8363 transitions. [2022-01-17 23:22:00,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:00,869 INFO L276 IsEmpty]: Start isEmpty. Operand 3154 states and 8363 transitions. [2022-01-17 23:22:00,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:22:00,872 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:00,872 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:00,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-17 23:22:00,872 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)] === [2022-01-17 23:22:00,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:00,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1508150948, now seen corresponding path program 21 times [2022-01-17 23:22:00,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:00,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277800820] [2022-01-17 23:22:00,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:00,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:00,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:01,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:01,389 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:01,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277800820] [2022-01-17 23:22:01,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277800820] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:01,389 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:01,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:22:01,390 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089967341] [2022-01-17 23:22:01,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:01,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:22:01,390 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:01,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:22:01,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:22:01,391 INFO L87 Difference]: Start difference. First operand 3154 states and 8363 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:03,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:03,841 INFO L93 Difference]: Finished difference Result 5651 states and 14390 transitions. [2022-01-17 23:22:03,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:22:03,841 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:22:03,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:03,846 INFO L225 Difference]: With dead ends: 5651 [2022-01-17 23:22:03,847 INFO L226 Difference]: Without dead ends: 5651 [2022-01-17 23:22:03,847 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=562, Invalid=1600, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:22:03,847 INFO L933 BasicCegarLoop]: 267 mSDtfsCounter, 985 mSDsluCounter, 2994 mSDsCounter, 0 mSdLazyCounter, 1273 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 985 SdHoareTripleChecker+Valid, 3101 SdHoareTripleChecker+Invalid, 1331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:03,848 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [985 Valid, 3101 Invalid, 1331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1273 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:22:03,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5651 states. [2022-01-17 23:22:03,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5651 to 3156. [2022-01-17 23:22:03,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3156 states, 3154 states have (on average 2.653138871274572) internal successors, (8368), 3155 states have internal predecessors, (8368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:03,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3156 states to 3156 states and 8368 transitions. [2022-01-17 23:22:03,891 INFO L78 Accepts]: Start accepts. Automaton has 3156 states and 8368 transitions. Word has length 106 [2022-01-17 23:22:03,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:03,891 INFO L470 AbstractCegarLoop]: Abstraction has 3156 states and 8368 transitions. [2022-01-17 23:22:03,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:03,891 INFO L276 IsEmpty]: Start isEmpty. Operand 3156 states and 8368 transitions. [2022-01-17 23:22:03,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:22:03,894 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:03,894 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:03,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-17 23:22:03,895 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)] === [2022-01-17 23:22:03,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:03,895 INFO L85 PathProgramCache]: Analyzing trace with hash -961644338, now seen corresponding path program 22 times [2022-01-17 23:22:03,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:03,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696176515] [2022-01-17 23:22:03,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:03,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:03,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:04,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:04,420 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:04,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696176515] [2022-01-17 23:22:04,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696176515] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:04,420 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:04,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:22:04,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921780797] [2022-01-17 23:22:04,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:04,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:22:04,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:04,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:22:04,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:22:04,421 INFO L87 Difference]: Start difference. First operand 3156 states and 8368 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:06,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:06,892 INFO L93 Difference]: Finished difference Result 5684 states and 14459 transitions. [2022-01-17 23:22:06,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:22:06,893 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:22:06,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:06,898 INFO L225 Difference]: With dead ends: 5684 [2022-01-17 23:22:06,898 INFO L226 Difference]: Without dead ends: 5684 [2022-01-17 23:22:06,899 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=563, Invalid=1599, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:22:06,899 INFO L933 BasicCegarLoop]: 280 mSDtfsCounter, 1022 mSDsluCounter, 3023 mSDsCounter, 0 mSdLazyCounter, 1312 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1022 SdHoareTripleChecker+Valid, 3125 SdHoareTripleChecker+Invalid, 1366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:06,899 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1022 Valid, 3125 Invalid, 1366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1312 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:22:06,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5684 states. [2022-01-17 23:22:06,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5684 to 3154. [2022-01-17 23:22:06,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3154 states, 3152 states have (on average 2.653236040609137) internal successors, (8363), 3153 states have internal predecessors, (8363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:06,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3154 states to 3154 states and 8363 transitions. [2022-01-17 23:22:06,943 INFO L78 Accepts]: Start accepts. Automaton has 3154 states and 8363 transitions. Word has length 106 [2022-01-17 23:22:06,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:06,943 INFO L470 AbstractCegarLoop]: Abstraction has 3154 states and 8363 transitions. [2022-01-17 23:22:06,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:06,943 INFO L276 IsEmpty]: Start isEmpty. Operand 3154 states and 8363 transitions. [2022-01-17 23:22:06,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:22:06,947 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:06,947 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:06,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-17 23:22:06,947 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)] === [2022-01-17 23:22:06,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:06,948 INFO L85 PathProgramCache]: Analyzing trace with hash -615835270, now seen corresponding path program 23 times [2022-01-17 23:22:06,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:06,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465585104] [2022-01-17 23:22:06,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:06,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:06,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:07,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:07,254 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:07,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465585104] [2022-01-17 23:22:07,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465585104] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:07,254 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:07,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:22:07,254 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721825357] [2022-01-17 23:22:07,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:07,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:22:07,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:07,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:22:07,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:22:07,256 INFO L87 Difference]: Start difference. First operand 3154 states and 8363 transitions. Second operand has 19 states, 19 states have (on average 5.578947368421052) internal successors, (106), 19 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:08,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:08,113 INFO L93 Difference]: Finished difference Result 3857 states and 9798 transitions. [2022-01-17 23:22:08,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-17 23:22:08,113 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.578947368421052) internal successors, (106), 19 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:22:08,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:08,118 INFO L225 Difference]: With dead ends: 3857 [2022-01-17 23:22:08,119 INFO L226 Difference]: Without dead ends: 3857 [2022-01-17 23:22:08,119 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=310, Invalid=880, Unknown=0, NotChecked=0, Total=1190 [2022-01-17 23:22:08,119 INFO L933 BasicCegarLoop]: 221 mSDtfsCounter, 662 mSDsluCounter, 1843 mSDsCounter, 0 mSdLazyCounter, 653 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 662 SdHoareTripleChecker+Valid, 1959 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:08,120 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [662 Valid, 1959 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 653 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:22:08,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3857 states. [2022-01-17 23:22:08,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3857 to 3224. [2022-01-17 23:22:08,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3224 states, 3222 states have (on average 2.6471135940409685) internal successors, (8529), 3223 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) [2022-01-17 23:22:08,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3224 states to 3224 states and 8529 transitions. [2022-01-17 23:22:08,161 INFO L78 Accepts]: Start accepts. Automaton has 3224 states and 8529 transitions. Word has length 106 [2022-01-17 23:22:08,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:08,162 INFO L470 AbstractCegarLoop]: Abstraction has 3224 states and 8529 transitions. [2022-01-17 23:22:08,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.578947368421052) internal successors, (106), 19 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:08,162 INFO L276 IsEmpty]: Start isEmpty. Operand 3224 states and 8529 transitions. [2022-01-17 23:22:08,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:22:08,165 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:08,165 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:08,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-17 23:22:08,165 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)] === [2022-01-17 23:22:08,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:08,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1664568406, now seen corresponding path program 24 times [2022-01-17 23:22:08,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:08,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257323135] [2022-01-17 23:22:08,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:08,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:08,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:08,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:08,717 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:08,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257323135] [2022-01-17 23:22:08,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257323135] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:08,717 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:08,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:22:08,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327873425] [2022-01-17 23:22:08,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:08,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:22:08,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:08,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:22:08,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=524, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:22:08,718 INFO L87 Difference]: Start difference. First operand 3224 states and 8529 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:12,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:12,432 INFO L93 Difference]: Finished difference Result 8404 states and 21467 transitions. [2022-01-17 23:22:12,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-17 23:22:12,433 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:22:12,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:12,441 INFO L225 Difference]: With dead ends: 8404 [2022-01-17 23:22:12,442 INFO L226 Difference]: Without dead ends: 8404 [2022-01-17 23:22:12,442 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=833, Invalid=1923, Unknown=0, NotChecked=0, Total=2756 [2022-01-17 23:22:12,443 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 1087 mSDsluCounter, 3511 mSDsCounter, 0 mSdLazyCounter, 1601 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1087 SdHoareTripleChecker+Valid, 3706 SdHoareTripleChecker+Invalid, 1677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 1601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:12,443 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1087 Valid, 3706 Invalid, 1677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 1601 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:22:12,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8404 states. [2022-01-17 23:22:12,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8404 to 3372. [2022-01-17 23:22:12,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3372 states, 3370 states have (on average 2.6614243323442137) internal successors, (8969), 3371 states have internal predecessors, (8969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:12,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3372 states to 3372 states and 8969 transitions. [2022-01-17 23:22:12,499 INFO L78 Accepts]: Start accepts. Automaton has 3372 states and 8969 transitions. Word has length 106 [2022-01-17 23:22:12,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:12,499 INFO L470 AbstractCegarLoop]: Abstraction has 3372 states and 8969 transitions. [2022-01-17 23:22:12,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:12,499 INFO L276 IsEmpty]: Start isEmpty. Operand 3372 states and 8969 transitions. [2022-01-17 23:22:12,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:22:12,503 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:12,503 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:12,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-17 23:22:12,503 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)] === [2022-01-17 23:22:12,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:12,503 INFO L85 PathProgramCache]: Analyzing trace with hash 428828942, now seen corresponding path program 25 times [2022-01-17 23:22:12,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:12,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561587176] [2022-01-17 23:22:12,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:12,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:12,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:13,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:13,093 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:13,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561587176] [2022-01-17 23:22:13,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561587176] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:13,094 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:13,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:22:13,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928054111] [2022-01-17 23:22:13,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:13,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:22:13,094 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:13,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:22:13,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:22:13,095 INFO L87 Difference]: Start difference. First operand 3372 states and 8969 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:17,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:17,325 INFO L93 Difference]: Finished difference Result 8128 states and 20770 transitions. [2022-01-17 23:22:17,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-17 23:22:17,326 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:22:17,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:17,336 INFO L225 Difference]: With dead ends: 8128 [2022-01-17 23:22:17,336 INFO L226 Difference]: Without dead ends: 8128 [2022-01-17 23:22:17,336 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 304 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=833, Invalid=2029, Unknown=0, NotChecked=0, Total=2862 [2022-01-17 23:22:17,337 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 1096 mSDsluCounter, 3343 mSDsCounter, 0 mSdLazyCounter, 1494 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1096 SdHoareTripleChecker+Valid, 3541 SdHoareTripleChecker+Invalid, 1580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:17,337 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1096 Valid, 3541 Invalid, 1580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 1494 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:22:17,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8128 states. [2022-01-17 23:22:17,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8128 to 3358. [2022-01-17 23:22:17,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3358 states, 3356 states have (on average 2.6600119189511324) internal successors, (8927), 3357 states have internal predecessors, (8927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:17,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3358 states to 3358 states and 8927 transitions. [2022-01-17 23:22:17,399 INFO L78 Accepts]: Start accepts. Automaton has 3358 states and 8927 transitions. Word has length 106 [2022-01-17 23:22:17,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:17,399 INFO L470 AbstractCegarLoop]: Abstraction has 3358 states and 8927 transitions. [2022-01-17 23:22:17,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:17,399 INFO L276 IsEmpty]: Start isEmpty. Operand 3358 states and 8927 transitions. [2022-01-17 23:22:17,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:22:17,403 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:17,403 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:17,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-17 23:22:17,403 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)] === [2022-01-17 23:22:17,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:17,404 INFO L85 PathProgramCache]: Analyzing trace with hash -425297064, now seen corresponding path program 26 times [2022-01-17 23:22:17,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:17,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655413821] [2022-01-17 23:22:17,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:17,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:17,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:17,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:17,972 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:17,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655413821] [2022-01-17 23:22:17,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655413821] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:17,972 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:17,972 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:22:17,972 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422054926] [2022-01-17 23:22:17,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:17,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:22:17,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:17,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:22:17,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:22:17,973 INFO L87 Difference]: Start difference. First operand 3358 states and 8927 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:21,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:21,774 INFO L93 Difference]: Finished difference Result 8493 states and 21591 transitions. [2022-01-17 23:22:21,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-17 23:22:21,775 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:22:21,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:21,783 INFO L225 Difference]: With dead ends: 8493 [2022-01-17 23:22:21,784 INFO L226 Difference]: Without dead ends: 8493 [2022-01-17 23:22:21,784 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 317 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=817, Invalid=2045, Unknown=0, NotChecked=0, Total=2862 [2022-01-17 23:22:21,784 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 1360 mSDsluCounter, 3648 mSDsCounter, 0 mSdLazyCounter, 1687 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1360 SdHoareTripleChecker+Valid, 3828 SdHoareTripleChecker+Invalid, 1785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:21,785 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1360 Valid, 3828 Invalid, 1785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 1687 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-17 23:22:21,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8493 states. [2022-01-17 23:22:21,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8493 to 3344. [2022-01-17 23:22:21,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3344 states, 3342 states have (on average 2.658587672052663) internal successors, (8885), 3343 states have internal predecessors, (8885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:21,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3344 states to 3344 states and 8885 transitions. [2022-01-17 23:22:21,836 INFO L78 Accepts]: Start accepts. Automaton has 3344 states and 8885 transitions. Word has length 106 [2022-01-17 23:22:21,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:21,836 INFO L470 AbstractCegarLoop]: Abstraction has 3344 states and 8885 transitions. [2022-01-17 23:22:21,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:21,836 INFO L276 IsEmpty]: Start isEmpty. Operand 3344 states and 8885 transitions. [2022-01-17 23:22:21,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:22:21,840 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:21,840 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:21,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-17 23:22:21,840 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)] === [2022-01-17 23:22:21,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:21,840 INFO L85 PathProgramCache]: Analyzing trace with hash -814949840, now seen corresponding path program 27 times [2022-01-17 23:22:21,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:21,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686478385] [2022-01-17 23:22:21,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:21,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:21,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:22,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:22,379 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:22,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686478385] [2022-01-17 23:22:22,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686478385] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:22,380 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:22,380 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:22:22,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935279741] [2022-01-17 23:22:22,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:22,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:22:22,380 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:22,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:22:22,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:22:22,381 INFO L87 Difference]: Start difference. First operand 3344 states and 8885 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:25,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:25,161 INFO L93 Difference]: Finished difference Result 7415 states and 18934 transitions. [2022-01-17 23:22:25,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-17 23:22:25,162 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:22:25,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:25,173 INFO L225 Difference]: With dead ends: 7415 [2022-01-17 23:22:25,173 INFO L226 Difference]: Without dead ends: 7415 [2022-01-17 23:22:25,174 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=609, Invalid=1647, Unknown=0, NotChecked=0, Total=2256 [2022-01-17 23:22:25,175 INFO L933 BasicCegarLoop]: 269 mSDtfsCounter, 1234 mSDsluCounter, 2956 mSDsCounter, 0 mSdLazyCounter, 1317 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1234 SdHoareTripleChecker+Valid, 3094 SdHoareTripleChecker+Invalid, 1407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 1317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:25,175 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1234 Valid, 3094 Invalid, 1407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 1317 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:22:25,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7415 states. [2022-01-17 23:22:25,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7415 to 3348. [2022-01-17 23:22:25,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3348 states, 3346 states have (on average 2.65839808726838) internal successors, (8895), 3347 states have internal predecessors, (8895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:25,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3348 states to 3348 states and 8895 transitions. [2022-01-17 23:22:25,235 INFO L78 Accepts]: Start accepts. Automaton has 3348 states and 8895 transitions. Word has length 106 [2022-01-17 23:22:25,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:25,235 INFO L470 AbstractCegarLoop]: Abstraction has 3348 states and 8895 transitions. [2022-01-17 23:22:25,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:25,235 INFO L276 IsEmpty]: Start isEmpty. Operand 3348 states and 8895 transitions. [2022-01-17 23:22:25,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:22:25,239 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:25,239 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:25,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-17 23:22:25,239 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)] === [2022-01-17 23:22:25,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:25,240 INFO L85 PathProgramCache]: Analyzing trace with hash 2001372102, now seen corresponding path program 28 times [2022-01-17 23:22:25,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:25,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040335540] [2022-01-17 23:22:25,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:25,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:25,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:25,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:25,749 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:25,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040335540] [2022-01-17 23:22:25,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040335540] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:25,749 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:25,749 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:22:25,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755305398] [2022-01-17 23:22:25,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:25,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:22:25,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:25,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:22:25,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=524, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:22:25,750 INFO L87 Difference]: Start difference. First operand 3348 states and 8895 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:28,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:28,384 INFO L93 Difference]: Finished difference Result 9378 states and 23947 transitions. [2022-01-17 23:22:28,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-17 23:22:28,385 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:22:28,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:28,397 INFO L225 Difference]: With dead ends: 9378 [2022-01-17 23:22:28,397 INFO L226 Difference]: Without dead ends: 9378 [2022-01-17 23:22:28,397 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=532, Invalid=1360, Unknown=0, NotChecked=0, Total=1892 [2022-01-17 23:22:28,397 INFO L933 BasicCegarLoop]: 321 mSDtfsCounter, 1065 mSDsluCounter, 3522 mSDsCounter, 0 mSdLazyCounter, 1486 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1065 SdHoareTripleChecker+Valid, 3678 SdHoareTripleChecker+Invalid, 1532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:28,398 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1065 Valid, 3678 Invalid, 1532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1486 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:22:28,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9378 states. [2022-01-17 23:22:28,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9378 to 3446. [2022-01-17 23:22:28,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3446 states, 3444 states have (on average 2.668118466898955) internal successors, (9189), 3445 states have internal predecessors, (9189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:28,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3446 states to 3446 states and 9189 transitions. [2022-01-17 23:22:28,469 INFO L78 Accepts]: Start accepts. Automaton has 3446 states and 9189 transitions. Word has length 106 [2022-01-17 23:22:28,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:28,470 INFO L470 AbstractCegarLoop]: Abstraction has 3446 states and 9189 transitions. [2022-01-17 23:22:28,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:28,470 INFO L276 IsEmpty]: Start isEmpty. Operand 3446 states and 9189 transitions. [2022-01-17 23:22:28,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:22:28,474 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:28,474 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:28,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-17 23:22:28,474 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)] === [2022-01-17 23:22:28,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:28,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1544532188, now seen corresponding path program 29 times [2022-01-17 23:22:28,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:28,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539377031] [2022-01-17 23:22:28,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:28,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:28,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:29,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:29,001 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:29,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539377031] [2022-01-17 23:22:29,001 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539377031] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:29,001 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:29,001 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:22:29,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279267130] [2022-01-17 23:22:29,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:29,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:22:29,002 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:29,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:22:29,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:22:29,002 INFO L87 Difference]: Start difference. First operand 3446 states and 9189 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:31,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:31,735 INFO L93 Difference]: Finished difference Result 9113 states and 23273 transitions. [2022-01-17 23:22:31,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-17 23:22:31,735 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:22:31,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:31,748 INFO L225 Difference]: With dead ends: 9113 [2022-01-17 23:22:31,748 INFO L226 Difference]: Without dead ends: 9113 [2022-01-17 23:22:31,748 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=541, Invalid=1439, Unknown=0, NotChecked=0, Total=1980 [2022-01-17 23:22:31,749 INFO L933 BasicCegarLoop]: 322 mSDtfsCounter, 1030 mSDsluCounter, 3417 mSDsCounter, 0 mSdLazyCounter, 1402 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1030 SdHoareTripleChecker+Valid, 3581 SdHoareTripleChecker+Invalid, 1454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:31,749 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1030 Valid, 3581 Invalid, 1454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1402 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:22:31,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9113 states. [2022-01-17 23:22:31,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9113 to 3404. [2022-01-17 23:22:31,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3404 states, 3402 states have (on average 2.664021164021164) internal successors, (9063), 3403 states have internal predecessors, (9063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:31,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3404 states to 3404 states and 9063 transitions. [2022-01-17 23:22:31,842 INFO L78 Accepts]: Start accepts. Automaton has 3404 states and 9063 transitions. Word has length 106 [2022-01-17 23:22:31,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:31,842 INFO L470 AbstractCegarLoop]: Abstraction has 3404 states and 9063 transitions. [2022-01-17 23:22:31,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:31,842 INFO L276 IsEmpty]: Start isEmpty. Operand 3404 states and 9063 transitions. [2022-01-17 23:22:31,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:22:31,846 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:31,846 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:31,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-17 23:22:31,846 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)] === [2022-01-17 23:22:31,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:31,847 INFO L85 PathProgramCache]: Analyzing trace with hash 267405512, now seen corresponding path program 30 times [2022-01-17 23:22:31,847 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:31,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164451074] [2022-01-17 23:22:31,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:31,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:31,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:32,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:32,414 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:32,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164451074] [2022-01-17 23:22:32,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164451074] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:32,415 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:32,415 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:22:32,415 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896418353] [2022-01-17 23:22:32,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:32,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:22:32,415 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:32,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:22:32,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:22:32,416 INFO L87 Difference]: Start difference. First operand 3404 states and 9063 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:35,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:35,983 INFO L93 Difference]: Finished difference Result 9008 states and 22932 transitions. [2022-01-17 23:22:35,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:22:35,984 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:22:35,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:35,993 INFO L225 Difference]: With dead ends: 9008 [2022-01-17 23:22:35,993 INFO L226 Difference]: Without dead ends: 9008 [2022-01-17 23:22:35,994 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=592, Invalid=1570, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:22:35,994 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 1031 mSDsluCounter, 3081 mSDsCounter, 0 mSdLazyCounter, 1274 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1031 SdHoareTripleChecker+Valid, 3248 SdHoareTripleChecker+Invalid, 1336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:35,994 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1031 Valid, 3248 Invalid, 1336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1274 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:22:36,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9008 states. [2022-01-17 23:22:36,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9008 to 3362. [2022-01-17 23:22:36,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3362 states, 3360 states have (on average 2.6598214285714286) internal successors, (8937), 3361 states have internal predecessors, (8937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:36,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3362 states to 3362 states and 8937 transitions. [2022-01-17 23:22:36,056 INFO L78 Accepts]: Start accepts. Automaton has 3362 states and 8937 transitions. Word has length 106 [2022-01-17 23:22:36,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:36,056 INFO L470 AbstractCegarLoop]: Abstraction has 3362 states and 8937 transitions. [2022-01-17 23:22:36,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:36,056 INFO L276 IsEmpty]: Start isEmpty. Operand 3362 states and 8937 transitions. [2022-01-17 23:22:36,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:22:36,060 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:36,060 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:36,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-17 23:22:36,060 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)] === [2022-01-17 23:22:36,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:36,061 INFO L85 PathProgramCache]: Analyzing trace with hash 2009247160, now seen corresponding path program 31 times [2022-01-17 23:22:36,061 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:36,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743631519] [2022-01-17 23:22:36,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:36,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:36,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:36,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:36,626 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:36,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743631519] [2022-01-17 23:22:36,626 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743631519] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:36,626 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:36,626 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:22:36,626 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309971422] [2022-01-17 23:22:36,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:36,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:22:36,627 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:36,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:22:36,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=524, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:22:36,627 INFO L87 Difference]: Start difference. First operand 3362 states and 8937 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:40,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:40,139 INFO L93 Difference]: Finished difference Result 8707 states and 22106 transitions. [2022-01-17 23:22:40,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:22:40,140 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:22:40,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:40,152 INFO L225 Difference]: With dead ends: 8707 [2022-01-17 23:22:40,152 INFO L226 Difference]: Without dead ends: 8707 [2022-01-17 23:22:40,152 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=783, Invalid=1767, Unknown=0, NotChecked=0, Total=2550 [2022-01-17 23:22:40,153 INFO L933 BasicCegarLoop]: 352 mSDtfsCounter, 1205 mSDsluCounter, 3031 mSDsCounter, 0 mSdLazyCounter, 1203 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1205 SdHoareTripleChecker+Valid, 3239 SdHoareTripleChecker+Invalid, 1269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:40,153 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1205 Valid, 3239 Invalid, 1269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1203 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:22:40,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8707 states. [2022-01-17 23:22:40,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8707 to 3418. [2022-01-17 23:22:40,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3418 states, 3416 states have (on average 2.6653981264637) internal successors, (9105), 3417 states have internal predecessors, (9105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:40,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3418 states to 3418 states and 9105 transitions. [2022-01-17 23:22:40,246 INFO L78 Accepts]: Start accepts. Automaton has 3418 states and 9105 transitions. Word has length 106 [2022-01-17 23:22:40,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:40,247 INFO L470 AbstractCegarLoop]: Abstraction has 3418 states and 9105 transitions. [2022-01-17 23:22:40,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:40,247 INFO L276 IsEmpty]: Start isEmpty. Operand 3418 states and 9105 transitions. [2022-01-17 23:22:40,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:22:40,251 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:40,251 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:40,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-17 23:22:40,251 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)] === [2022-01-17 23:22:40,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:40,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1552407246, now seen corresponding path program 32 times [2022-01-17 23:22:40,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:40,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331493443] [2022-01-17 23:22:40,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:40,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:40,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:40,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:40,823 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:40,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331493443] [2022-01-17 23:22:40,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331493443] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:40,823 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:40,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:22:40,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753193556] [2022-01-17 23:22:40,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:40,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:22:40,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:40,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:22:40,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:22:40,824 INFO L87 Difference]: Start difference. First operand 3418 states and 9105 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:44,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:44,846 INFO L93 Difference]: Finished difference Result 8442 states and 21432 transitions. [2022-01-17 23:22:44,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:22:44,846 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:22:44,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:44,855 INFO L225 Difference]: With dead ends: 8442 [2022-01-17 23:22:44,855 INFO L226 Difference]: Without dead ends: 8442 [2022-01-17 23:22:44,856 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=779, Invalid=1873, Unknown=0, NotChecked=0, Total=2652 [2022-01-17 23:22:44,856 INFO L933 BasicCegarLoop]: 340 mSDtfsCounter, 1049 mSDsluCounter, 3669 mSDsCounter, 0 mSdLazyCounter, 1613 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1049 SdHoareTripleChecker+Valid, 3845 SdHoareTripleChecker+Invalid, 1680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:44,856 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1049 Valid, 3845 Invalid, 1680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1613 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:22:44,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8442 states. [2022-01-17 23:22:44,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8442 to 3376. [2022-01-17 23:22:44,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3376 states, 3374 states have (on average 2.6612329579134557) internal successors, (8979), 3375 states have internal predecessors, (8979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:44,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3376 states to 3376 states and 8979 transitions. [2022-01-17 23:22:44,914 INFO L78 Accepts]: Start accepts. Automaton has 3376 states and 8979 transitions. Word has length 106 [2022-01-17 23:22:44,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:44,914 INFO L470 AbstractCegarLoop]: Abstraction has 3376 states and 8979 transitions. [2022-01-17 23:22:44,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:44,915 INFO L276 IsEmpty]: Start isEmpty. Operand 3376 states and 8979 transitions. [2022-01-17 23:22:44,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:22:44,918 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:44,918 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:44,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-17 23:22:44,919 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)] === [2022-01-17 23:22:44,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:44,919 INFO L85 PathProgramCache]: Analyzing trace with hash 102840456, now seen corresponding path program 33 times [2022-01-17 23:22:44,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:44,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920960793] [2022-01-17 23:22:44,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:44,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:44,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:45,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:45,491 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:45,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920960793] [2022-01-17 23:22:45,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920960793] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:45,491 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:45,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:22:45,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959794846] [2022-01-17 23:22:45,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:45,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:22:45,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:45,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:22:45,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:22:45,492 INFO L87 Difference]: Start difference. First operand 3376 states and 8979 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:48,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:48,510 INFO L93 Difference]: Finished difference Result 7785 states and 19796 transitions. [2022-01-17 23:22:48,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:22:48,510 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:22:48,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:48,520 INFO L225 Difference]: With dead ends: 7785 [2022-01-17 23:22:48,520 INFO L226 Difference]: Without dead ends: 7785 [2022-01-17 23:22:48,521 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=593, Invalid=1569, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:22:48,521 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 1293 mSDsluCounter, 3058 mSDsCounter, 0 mSdLazyCounter, 1304 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1293 SdHoareTripleChecker+Valid, 3205 SdHoareTripleChecker+Invalid, 1383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 1304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:48,521 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1293 Valid, 3205 Invalid, 1383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 1304 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:22:48,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7785 states. [2022-01-17 23:22:48,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7785 to 3362. [2022-01-17 23:22:48,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3362 states, 3360 states have (on average 2.6598214285714286) internal successors, (8937), 3361 states have internal predecessors, (8937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:48,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3362 states to 3362 states and 8937 transitions. [2022-01-17 23:22:48,589 INFO L78 Accepts]: Start accepts. Automaton has 3362 states and 8937 transitions. Word has length 106 [2022-01-17 23:22:48,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:48,589 INFO L470 AbstractCegarLoop]: Abstraction has 3362 states and 8937 transitions. [2022-01-17 23:22:48,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:48,589 INFO L276 IsEmpty]: Start isEmpty. Operand 3362 states and 8937 transitions. [2022-01-17 23:22:48,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:22:48,593 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:48,593 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:48,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-17 23:22:48,593 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)] === [2022-01-17 23:22:48,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:48,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1719492018, now seen corresponding path program 34 times [2022-01-17 23:22:48,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:48,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147287925] [2022-01-17 23:22:48,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:48,594 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:48,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:49,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:49,157 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:49,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147287925] [2022-01-17 23:22:49,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147287925] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:49,158 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:49,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:22:49,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790328937] [2022-01-17 23:22:49,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:49,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:22:49,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:49,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:22:49,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:22:49,159 INFO L87 Difference]: Start difference. First operand 3362 states and 8937 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:52,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:52,142 INFO L93 Difference]: Finished difference Result 7685 states and 19509 transitions. [2022-01-17 23:22:52,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:22:52,142 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:22:52,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:52,150 INFO L225 Difference]: With dead ends: 7685 [2022-01-17 23:22:52,150 INFO L226 Difference]: Without dead ends: 7685 [2022-01-17 23:22:52,151 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=577, Invalid=1585, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:22:52,151 INFO L933 BasicCegarLoop]: 301 mSDtfsCounter, 987 mSDsluCounter, 3218 mSDsCounter, 0 mSdLazyCounter, 1370 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 987 SdHoareTripleChecker+Valid, 3350 SdHoareTripleChecker+Invalid, 1429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:52,151 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [987 Valid, 3350 Invalid, 1429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1370 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:22:52,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7685 states. [2022-01-17 23:22:52,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7685 to 3364. [2022-01-17 23:22:52,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3364 states, 3362 states have (on average 2.6597263533610946) internal successors, (8942), 3363 states have internal predecessors, (8942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:52,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3364 states to 3364 states and 8942 transitions. [2022-01-17 23:22:52,205 INFO L78 Accepts]: Start accepts. Automaton has 3364 states and 8942 transitions. Word has length 106 [2022-01-17 23:22:52,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:52,206 INFO L470 AbstractCegarLoop]: Abstraction has 3364 states and 8942 transitions. [2022-01-17 23:22:52,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:52,206 INFO L276 IsEmpty]: Start isEmpty. Operand 3364 states and 8942 transitions. [2022-01-17 23:22:52,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:22:52,209 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:52,209 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:52,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-17 23:22:52,209 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)] === [2022-01-17 23:22:52,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:52,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1957656292, now seen corresponding path program 35 times [2022-01-17 23:22:52,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:52,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735351952] [2022-01-17 23:22:52,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:52,210 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:52,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:52,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:52,735 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:52,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735351952] [2022-01-17 23:22:52,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735351952] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:52,735 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:52,735 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:22:52,735 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007841396] [2022-01-17 23:22:52,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:52,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:22:52,736 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:52,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:22:52,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:22:52,736 INFO L87 Difference]: Start difference. First operand 3364 states and 8942 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:55,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:55,525 INFO L93 Difference]: Finished difference Result 7585 states and 19314 transitions. [2022-01-17 23:22:55,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:22:55,526 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:22:55,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:55,534 INFO L225 Difference]: With dead ends: 7585 [2022-01-17 23:22:55,534 INFO L226 Difference]: Without dead ends: 7585 [2022-01-17 23:22:55,534 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=578, Invalid=1584, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:22:55,535 INFO L933 BasicCegarLoop]: 311 mSDtfsCounter, 1042 mSDsluCounter, 3062 mSDsCounter, 0 mSdLazyCounter, 1325 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1042 SdHoareTripleChecker+Valid, 3195 SdHoareTripleChecker+Invalid, 1378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:55,535 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1042 Valid, 3195 Invalid, 1378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1325 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:22:55,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7585 states. [2022-01-17 23:22:55,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7585 to 3348. [2022-01-17 23:22:55,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3348 states, 3346 states have (on average 2.65839808726838) internal successors, (8895), 3347 states have internal predecessors, (8895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:55,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3348 states to 3348 states and 8895 transitions. [2022-01-17 23:22:55,583 INFO L78 Accepts]: Start accepts. Automaton has 3348 states and 8895 transitions. Word has length 106 [2022-01-17 23:22:55,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:55,583 INFO L470 AbstractCegarLoop]: Abstraction has 3348 states and 8895 transitions. [2022-01-17 23:22:55,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:55,584 INFO L276 IsEmpty]: Start isEmpty. Operand 3348 states and 8895 transitions. [2022-01-17 23:22:55,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:22:55,587 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:55,587 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:55,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-17 23:22:55,587 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)] === [2022-01-17 23:22:55,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:55,587 INFO L85 PathProgramCache]: Analyzing trace with hash -755735992, now seen corresponding path program 36 times [2022-01-17 23:22:55,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:55,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896859725] [2022-01-17 23:22:55,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:55,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:55,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:56,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:56,143 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:56,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896859725] [2022-01-17 23:22:56,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896859725] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:56,143 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:56,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:22:56,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056289031] [2022-01-17 23:22:56,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:56,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:22:56,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:56,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:22:56,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:22:56,145 INFO L87 Difference]: Start difference. First operand 3348 states and 8895 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:59,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:59,149 INFO L93 Difference]: Finished difference Result 6814 states and 17269 transitions. [2022-01-17 23:22:59,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-17 23:22:59,150 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:22:59,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:59,159 INFO L225 Difference]: With dead ends: 6814 [2022-01-17 23:22:59,159 INFO L226 Difference]: Without dead ends: 6814 [2022-01-17 23:22:59,159 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=594, Invalid=1662, Unknown=0, NotChecked=0, Total=2256 [2022-01-17 23:22:59,160 INFO L933 BasicCegarLoop]: 267 mSDtfsCounter, 982 mSDsluCounter, 3356 mSDsCounter, 0 mSdLazyCounter, 1542 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 982 SdHoareTripleChecker+Valid, 3467 SdHoareTripleChecker+Invalid, 1594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:59,160 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [982 Valid, 3467 Invalid, 1594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1542 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:22:59,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6814 states. [2022-01-17 23:22:59,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6814 to 3352. [2022-01-17 23:22:59,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3352 states, 3350 states have (on average 2.6582089552238806) internal successors, (8905), 3351 states have internal predecessors, (8905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:59,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3352 states to 3352 states and 8905 transitions. [2022-01-17 23:22:59,209 INFO L78 Accepts]: Start accepts. Automaton has 3352 states and 8905 transitions. Word has length 106 [2022-01-17 23:22:59,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:59,209 INFO L470 AbstractCegarLoop]: Abstraction has 3352 states and 8905 transitions. [2022-01-17 23:22:59,210 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:59,210 INFO L276 IsEmpty]: Start isEmpty. Operand 3352 states and 8905 transitions. [2022-01-17 23:22:59,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:22:59,213 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:59,213 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:59,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-17 23:22:59,213 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)] === [2022-01-17 23:22:59,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:59,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1648868136, now seen corresponding path program 37 times [2022-01-17 23:22:59,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:59,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857518915] [2022-01-17 23:22:59,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:59,214 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:59,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:59,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:59,735 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:59,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857518915] [2022-01-17 23:22:59,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857518915] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:59,735 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:59,735 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:22:59,735 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735257469] [2022-01-17 23:22:59,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:59,735 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:22:59,736 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:59,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:22:59,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:22:59,736 INFO L87 Difference]: Start difference. First operand 3352 states and 8905 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:02,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:02,229 INFO L93 Difference]: Finished difference Result 6857 states and 17337 transitions. [2022-01-17 23:23:02,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:23:02,230 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:23:02,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:02,238 INFO L225 Difference]: With dead ends: 6857 [2022-01-17 23:23:02,238 INFO L226 Difference]: Without dead ends: 6857 [2022-01-17 23:23:02,239 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=562, Invalid=1600, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:23:02,239 INFO L933 BasicCegarLoop]: 266 mSDtfsCounter, 991 mSDsluCounter, 2893 mSDsCounter, 0 mSdLazyCounter, 1280 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 991 SdHoareTripleChecker+Valid, 2995 SdHoareTripleChecker+Invalid, 1332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:02,239 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [991 Valid, 2995 Invalid, 1332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1280 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:23:02,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6857 states. [2022-01-17 23:23:02,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6857 to 3354. [2022-01-17 23:23:02,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3354 states, 3352 states have (on average 2.658114558472554) internal successors, (8910), 3353 states have internal predecessors, (8910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:02,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3354 states to 3354 states and 8910 transitions. [2022-01-17 23:23:02,286 INFO L78 Accepts]: Start accepts. Automaton has 3354 states and 8910 transitions. Word has length 106 [2022-01-17 23:23:02,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:02,287 INFO L470 AbstractCegarLoop]: Abstraction has 3354 states and 8910 transitions. [2022-01-17 23:23:02,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:02,287 INFO L276 IsEmpty]: Start isEmpty. Operand 3354 states and 8910 transitions. [2022-01-17 23:23:02,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:23:02,290 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:02,290 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:23:02,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-17 23:23:02,290 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)] === [2022-01-17 23:23:02,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:02,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1887032410, now seen corresponding path program 38 times [2022-01-17 23:23:02,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:02,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500857379] [2022-01-17 23:23:02,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:02,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:02,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:02,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:02,824 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:02,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500857379] [2022-01-17 23:23:02,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500857379] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:02,824 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:02,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:23:02,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117684065] [2022-01-17 23:23:02,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:02,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:23:02,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:02,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:23:02,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:23:02,825 INFO L87 Difference]: Start difference. First operand 3354 states and 8910 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:05,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:05,294 INFO L93 Difference]: Finished difference Result 6674 states and 16983 transitions. [2022-01-17 23:23:05,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:23:05,295 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:23:05,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:05,303 INFO L225 Difference]: With dead ends: 6674 [2022-01-17 23:23:05,303 INFO L226 Difference]: Without dead ends: 6674 [2022-01-17 23:23:05,304 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=563, Invalid=1599, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:23:05,304 INFO L933 BasicCegarLoop]: 267 mSDtfsCounter, 1066 mSDsluCounter, 2798 mSDsCounter, 0 mSdLazyCounter, 1247 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1066 SdHoareTripleChecker+Valid, 2905 SdHoareTripleChecker+Invalid, 1297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:05,304 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1066 Valid, 2905 Invalid, 1297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1247 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:23:05,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6674 states. [2022-01-17 23:23:05,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6674 to 3352. [2022-01-17 23:23:05,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3352 states, 3350 states have (on average 2.6582089552238806) internal successors, (8905), 3351 states have internal predecessors, (8905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:05,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3352 states to 3352 states and 8905 transitions. [2022-01-17 23:23:05,362 INFO L78 Accepts]: Start accepts. Automaton has 3352 states and 8905 transitions. Word has length 106 [2022-01-17 23:23:05,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:05,362 INFO L470 AbstractCegarLoop]: Abstraction has 3352 states and 8905 transitions. [2022-01-17 23:23:05,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:05,362 INFO L276 IsEmpty]: Start isEmpty. Operand 3352 states and 8905 transitions. [2022-01-17 23:23:05,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:23:05,365 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:05,366 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:23:05,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-17 23:23:05,366 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)] === [2022-01-17 23:23:05,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:05,366 INFO L85 PathProgramCache]: Analyzing trace with hash -190221060, now seen corresponding path program 39 times [2022-01-17 23:23:05,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:05,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184927695] [2022-01-17 23:23:05,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:05,367 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:05,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:05,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:05,865 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:05,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184927695] [2022-01-17 23:23:05,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184927695] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:05,865 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:05,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:23:05,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381799909] [2022-01-17 23:23:05,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:05,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:23:05,865 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:05,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:23:05,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:23:05,866 INFO L87 Difference]: Start difference. First operand 3352 states and 8905 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:08,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:08,161 INFO L93 Difference]: Finished difference Result 5893 states and 15062 transitions. [2022-01-17 23:23:08,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-17 23:23:08,161 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:23:08,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:08,167 INFO L225 Difference]: With dead ends: 5893 [2022-01-17 23:23:08,167 INFO L226 Difference]: Without dead ends: 5893 [2022-01-17 23:23:08,167 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=511, Invalid=1559, Unknown=0, NotChecked=0, Total=2070 [2022-01-17 23:23:08,168 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 971 mSDsluCounter, 2599 mSDsCounter, 0 mSdLazyCounter, 1115 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 971 SdHoareTripleChecker+Valid, 2711 SdHoareTripleChecker+Invalid, 1158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:08,168 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [971 Valid, 2711 Invalid, 1158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1115 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:23:08,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5893 states. [2022-01-17 23:23:08,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5893 to 3364. [2022-01-17 23:23:08,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3364 states, 3362 states have (on average 2.657644259369423) internal successors, (8935), 3363 states have internal predecessors, (8935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:08,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3364 states to 3364 states and 8935 transitions. [2022-01-17 23:23:08,211 INFO L78 Accepts]: Start accepts. Automaton has 3364 states and 8935 transitions. Word has length 106 [2022-01-17 23:23:08,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:08,212 INFO L470 AbstractCegarLoop]: Abstraction has 3364 states and 8935 transitions. [2022-01-17 23:23:08,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:08,212 INFO L276 IsEmpty]: Start isEmpty. Operand 3364 states and 8935 transitions. [2022-01-17 23:23:08,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:23:08,215 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:08,215 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:23:08,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-17 23:23:08,215 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)] === [2022-01-17 23:23:08,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:08,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1542254466, now seen corresponding path program 40 times [2022-01-17 23:23:08,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:08,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039398264] [2022-01-17 23:23:08,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:08,216 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:08,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:08,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:08,723 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:08,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039398264] [2022-01-17 23:23:08,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039398264] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:08,724 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:08,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:23:08,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683421449] [2022-01-17 23:23:08,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:08,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:23:08,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:08,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:23:08,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:23:08,725 INFO L87 Difference]: Start difference. First operand 3364 states and 8935 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:11,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:11,175 INFO L93 Difference]: Finished difference Result 6165 states and 15608 transitions. [2022-01-17 23:23:11,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:23:11,176 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:23:11,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:11,182 INFO L225 Difference]: With dead ends: 6165 [2022-01-17 23:23:11,182 INFO L226 Difference]: Without dead ends: 6165 [2022-01-17 23:23:11,182 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=547, Invalid=1615, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:23:11,183 INFO L933 BasicCegarLoop]: 264 mSDtfsCounter, 910 mSDsluCounter, 3086 mSDsCounter, 0 mSdLazyCounter, 1473 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 910 SdHoareTripleChecker+Valid, 3169 SdHoareTripleChecker+Invalid, 1522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:11,183 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [910 Valid, 3169 Invalid, 1522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1473 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:23:11,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6165 states. [2022-01-17 23:23:11,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6165 to 3366. [2022-01-17 23:23:11,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3366 states, 3364 states have (on average 2.657550535077289) internal successors, (8940), 3365 states have internal predecessors, (8940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:11,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3366 states to 3366 states and 8940 transitions. [2022-01-17 23:23:11,230 INFO L78 Accepts]: Start accepts. Automaton has 3366 states and 8940 transitions. Word has length 106 [2022-01-17 23:23:11,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:11,230 INFO L470 AbstractCegarLoop]: Abstraction has 3366 states and 8940 transitions. [2022-01-17 23:23:11,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:11,230 INFO L276 IsEmpty]: Start isEmpty. Operand 3366 states and 8940 transitions. [2022-01-17 23:23:11,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:23:11,233 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:11,234 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:23:11,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-17 23:23:11,234 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)] === [2022-01-17 23:23:11,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:11,234 INFO L85 PathProgramCache]: Analyzing trace with hash 2088761076, now seen corresponding path program 41 times [2022-01-17 23:23:11,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:11,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003801034] [2022-01-17 23:23:11,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:11,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:11,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:11,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:11,793 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:11,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003801034] [2022-01-17 23:23:11,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003801034] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:11,793 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:11,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:23:11,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943176900] [2022-01-17 23:23:11,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:11,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:23:11,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:11,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:23:11,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:23:11,794 INFO L87 Difference]: Start difference. First operand 3366 states and 8940 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:14,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:14,183 INFO L93 Difference]: Finished difference Result 6198 states and 15677 transitions. [2022-01-17 23:23:14,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:23:14,184 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:23:14,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:14,191 INFO L225 Difference]: With dead ends: 6198 [2022-01-17 23:23:14,191 INFO L226 Difference]: Without dead ends: 6198 [2022-01-17 23:23:14,191 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=548, Invalid=1614, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:23:14,192 INFO L933 BasicCegarLoop]: 275 mSDtfsCounter, 1002 mSDsluCounter, 2910 mSDsCounter, 0 mSdLazyCounter, 1350 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1002 SdHoareTripleChecker+Valid, 2993 SdHoareTripleChecker+Invalid, 1405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:14,192 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1002 Valid, 2993 Invalid, 1405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1350 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:23:14,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6198 states. [2022-01-17 23:23:14,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6198 to 3360. [2022-01-17 23:23:14,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3360 states, 3358 states have (on average 2.657832042882668) internal successors, (8925), 3359 states have internal predecessors, (8925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:14,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3360 states to 3360 states and 8925 transitions. [2022-01-17 23:23:14,242 INFO L78 Accepts]: Start accepts. Automaton has 3360 states and 8925 transitions. Word has length 106 [2022-01-17 23:23:14,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:14,242 INFO L470 AbstractCegarLoop]: Abstraction has 3360 states and 8925 transitions. [2022-01-17 23:23:14,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:14,243 INFO L276 IsEmpty]: Start isEmpty. Operand 3360 states and 8925 transitions. [2022-01-17 23:23:14,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:23:14,246 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:14,246 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:23:14,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-17 23:23:14,246 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)] === [2022-01-17 23:23:14,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:14,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1165747942, now seen corresponding path program 42 times [2022-01-17 23:23:14,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:14,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241230211] [2022-01-17 23:23:14,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:14,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:14,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:14,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:14,775 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:14,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241230211] [2022-01-17 23:23:14,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241230211] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:14,776 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:14,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:23:14,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655823031] [2022-01-17 23:23:14,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:14,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:23:14,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:14,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:23:14,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:23:14,777 INFO L87 Difference]: Start difference. First operand 3360 states and 8925 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:17,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:17,267 INFO L93 Difference]: Finished difference Result 5958 states and 15182 transitions. [2022-01-17 23:23:17,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-17 23:23:17,268 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:23:17,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:17,274 INFO L225 Difference]: With dead ends: 5958 [2022-01-17 23:23:17,274 INFO L226 Difference]: Without dead ends: 5958 [2022-01-17 23:23:17,275 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=579, Invalid=1677, Unknown=0, NotChecked=0, Total=2256 [2022-01-17 23:23:17,275 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 933 mSDsluCounter, 2794 mSDsCounter, 0 mSdLazyCounter, 1216 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 933 SdHoareTripleChecker+Valid, 2906 SdHoareTripleChecker+Invalid, 1285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:17,275 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [933 Valid, 2906 Invalid, 1285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1216 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:23:17,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5958 states. [2022-01-17 23:23:17,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5958 to 3364. [2022-01-17 23:23:17,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3364 states, 3362 states have (on average 2.657644259369423) internal successors, (8935), 3363 states have internal predecessors, (8935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:17,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3364 states to 3364 states and 8935 transitions. [2022-01-17 23:23:17,329 INFO L78 Accepts]: Start accepts. Automaton has 3364 states and 8935 transitions. Word has length 106 [2022-01-17 23:23:17,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:17,329 INFO L470 AbstractCegarLoop]: Abstraction has 3364 states and 8935 transitions. [2022-01-17 23:23:17,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:17,330 INFO L276 IsEmpty]: Start isEmpty. Operand 3364 states and 8935 transitions. [2022-01-17 23:23:17,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:23:17,333 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:17,333 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:23:17,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-01-17 23:23:17,334 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)] === [2022-01-17 23:23:17,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:17,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1299293322, now seen corresponding path program 43 times [2022-01-17 23:23:17,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:17,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012132147] [2022-01-17 23:23:17,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:17,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:17,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:17,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:17,900 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:17,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012132147] [2022-01-17 23:23:17,901 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012132147] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:17,901 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:17,901 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:23:17,901 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277465205] [2022-01-17 23:23:17,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:17,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:23:17,901 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:17,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:23:17,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:23:17,902 INFO L87 Difference]: Start difference. First operand 3364 states and 8935 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:20,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:20,299 INFO L93 Difference]: Finished difference Result 6159 states and 15581 transitions. [2022-01-17 23:23:20,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:23:20,299 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:23:20,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:20,307 INFO L225 Difference]: With dead ends: 6159 [2022-01-17 23:23:20,307 INFO L226 Difference]: Without dead ends: 6159 [2022-01-17 23:23:20,307 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=547, Invalid=1615, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:23:20,308 INFO L933 BasicCegarLoop]: 267 mSDtfsCounter, 925 mSDsluCounter, 3029 mSDsCounter, 0 mSdLazyCounter, 1280 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 925 SdHoareTripleChecker+Valid, 3121 SdHoareTripleChecker+Invalid, 1341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:20,308 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [925 Valid, 3121 Invalid, 1341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1280 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:23:20,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6159 states. [2022-01-17 23:23:20,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6159 to 3366. [2022-01-17 23:23:20,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3366 states, 3364 states have (on average 2.657550535077289) internal successors, (8940), 3365 states have internal predecessors, (8940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:20,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3366 states to 3366 states and 8940 transitions. [2022-01-17 23:23:20,362 INFO L78 Accepts]: Start accepts. Automaton has 3366 states and 8940 transitions. Word has length 106 [2022-01-17 23:23:20,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:20,362 INFO L470 AbstractCegarLoop]: Abstraction has 3366 states and 8940 transitions. [2022-01-17 23:23:20,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:20,363 INFO L276 IsEmpty]: Start isEmpty. Operand 3366 states and 8940 transitions. [2022-01-17 23:23:20,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:23:20,366 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:20,366 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:23:20,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-01-17 23:23:20,366 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)] === [2022-01-17 23:23:20,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:20,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1845799932, now seen corresponding path program 44 times [2022-01-17 23:23:20,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:20,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223708761] [2022-01-17 23:23:20,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:20,367 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:20,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:20,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:20,884 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:20,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223708761] [2022-01-17 23:23:20,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223708761] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:20,884 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:20,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:23:20,884 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403536974] [2022-01-17 23:23:20,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:20,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:23:20,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:20,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:23:20,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:23:20,885 INFO L87 Difference]: Start difference. First operand 3366 states and 8940 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:23,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:23,234 INFO L93 Difference]: Finished difference Result 5985 states and 15236 transitions. [2022-01-17 23:23:23,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:23:23,234 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:23:23,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:23,241 INFO L225 Difference]: With dead ends: 5985 [2022-01-17 23:23:23,241 INFO L226 Difference]: Without dead ends: 5985 [2022-01-17 23:23:23,241 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=548, Invalid=1614, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:23:23,241 INFO L933 BasicCegarLoop]: 270 mSDtfsCounter, 924 mSDsluCounter, 2793 mSDsCounter, 0 mSdLazyCounter, 1190 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 924 SdHoareTripleChecker+Valid, 2892 SdHoareTripleChecker+Invalid, 1247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:23,242 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [924 Valid, 2892 Invalid, 1247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1190 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:23:23,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5985 states. [2022-01-17 23:23:23,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5985 to 3360. [2022-01-17 23:23:23,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3360 states, 3358 states have (on average 2.657832042882668) internal successors, (8925), 3359 states have internal predecessors, (8925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:23,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3360 states to 3360 states and 8925 transitions. [2022-01-17 23:23:23,288 INFO L78 Accepts]: Start accepts. Automaton has 3360 states and 8925 transitions. Word has length 106 [2022-01-17 23:23:23,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:23,288 INFO L470 AbstractCegarLoop]: Abstraction has 3360 states and 8925 transitions. [2022-01-17 23:23:23,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:23,288 INFO L276 IsEmpty]: Start isEmpty. Operand 3360 states and 8925 transitions. [2022-01-17 23:23:23,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:23:23,291 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:23,291 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:23:23,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-01-17 23:23:23,291 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)] === [2022-01-17 23:23:23,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:23,292 INFO L85 PathProgramCache]: Analyzing trace with hash 2115974522, now seen corresponding path program 45 times [2022-01-17 23:23:23,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:23,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586786733] [2022-01-17 23:23:23,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:23,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:23,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:23,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:23,590 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:23,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586786733] [2022-01-17 23:23:23,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586786733] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:23,590 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:23,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:23:23,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624344596] [2022-01-17 23:23:23,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:23,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:23:23,591 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:23,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:23:23,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:23:23,591 INFO L87 Difference]: Start difference. First operand 3360 states and 8925 transitions. Second operand has 19 states, 19 states have (on average 5.578947368421052) internal successors, (106), 19 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:24,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:24,373 INFO L93 Difference]: Finished difference Result 4098 states and 10443 transitions. [2022-01-17 23:23:24,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-17 23:23:24,374 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.578947368421052) internal successors, (106), 19 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:23:24,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:24,378 INFO L225 Difference]: With dead ends: 4098 [2022-01-17 23:23:24,378 INFO L226 Difference]: Without dead ends: 4098 [2022-01-17 23:23:24,378 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=295, Invalid=895, Unknown=0, NotChecked=0, Total=1190 [2022-01-17 23:23:24,379 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 718 mSDsluCounter, 1594 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 718 SdHoareTripleChecker+Valid, 1705 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:24,379 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [718 Valid, 1705 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 553 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:23:24,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4098 states. [2022-01-17 23:23:24,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4098 to 3395. [2022-01-17 23:23:24,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3395 states, 3393 states have (on average 2.6548776893604478) internal successors, (9008), 3394 states have internal predecessors, (9008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:24,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3395 states to 3395 states and 9008 transitions. [2022-01-17 23:23:24,417 INFO L78 Accepts]: Start accepts. Automaton has 3395 states and 9008 transitions. Word has length 106 [2022-01-17 23:23:24,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:24,417 INFO L470 AbstractCegarLoop]: Abstraction has 3395 states and 9008 transitions. [2022-01-17 23:23:24,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.578947368421052) internal successors, (106), 19 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:24,418 INFO L276 IsEmpty]: Start isEmpty. Operand 3395 states and 9008 transitions. [2022-01-17 23:23:24,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:23:24,421 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:24,421 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:23:24,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-01-17 23:23:24,421 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)] === [2022-01-17 23:23:24,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:24,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1924873558, now seen corresponding path program 46 times [2022-01-17 23:23:24,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:24,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321714249] [2022-01-17 23:23:24,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:24,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:24,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:25,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:25,008 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:25,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321714249] [2022-01-17 23:23:25,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321714249] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:25,008 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:25,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:23:25,009 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836535947] [2022-01-17 23:23:25,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:25,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:23:25,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:25,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:23:25,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=524, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:23:25,009 INFO L87 Difference]: Start difference. First operand 3395 states and 9008 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:29,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:29,427 INFO L93 Difference]: Finished difference Result 9023 states and 23112 transitions. [2022-01-17 23:23:29,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-17 23:23:29,427 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:23:29,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:29,438 INFO L225 Difference]: With dead ends: 9023 [2022-01-17 23:23:29,439 INFO L226 Difference]: Without dead ends: 9023 [2022-01-17 23:23:29,439 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=889, Invalid=2081, Unknown=0, NotChecked=0, Total=2970 [2022-01-17 23:23:29,439 INFO L933 BasicCegarLoop]: 342 mSDtfsCounter, 1176 mSDsluCounter, 3339 mSDsCounter, 0 mSdLazyCounter, 1521 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1176 SdHoareTripleChecker+Valid, 3566 SdHoareTripleChecker+Invalid, 1613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:29,439 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1176 Valid, 3566 Invalid, 1613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 1521 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:23:29,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9023 states. [2022-01-17 23:23:29,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9023 to 3511. [2022-01-17 23:23:29,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3511 states, 3509 states have (on average 2.665716728412653) internal successors, (9354), 3510 states have internal predecessors, (9354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:29,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3511 states to 3511 states and 9354 transitions. [2022-01-17 23:23:29,504 INFO L78 Accepts]: Start accepts. Automaton has 3511 states and 9354 transitions. Word has length 106 [2022-01-17 23:23:29,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:29,504 INFO L470 AbstractCegarLoop]: Abstraction has 3511 states and 9354 transitions. [2022-01-17 23:23:29,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:29,504 INFO L276 IsEmpty]: Start isEmpty. Operand 3511 states and 9354 transitions. [2022-01-17 23:23:29,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:23:29,507 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:29,507 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:23:29,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-01-17 23:23:29,508 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)] === [2022-01-17 23:23:29,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:29,508 INFO L85 PathProgramCache]: Analyzing trace with hash -140604914, now seen corresponding path program 47 times [2022-01-17 23:23:29,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:29,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096623296] [2022-01-17 23:23:29,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:29,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:29,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:30,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:30,031 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:30,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096623296] [2022-01-17 23:23:30,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096623296] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:30,032 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:30,032 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:23:30,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561228148] [2022-01-17 23:23:30,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:30,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:23:30,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:30,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:23:30,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:23:30,033 INFO L87 Difference]: Start difference. First operand 3511 states and 9354 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:32,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:32,445 INFO L93 Difference]: Finished difference Result 8269 states and 21358 transitions. [2022-01-17 23:23:32,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-17 23:23:32,445 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:23:32,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:32,456 INFO L225 Difference]: With dead ends: 8269 [2022-01-17 23:23:32,456 INFO L226 Difference]: Without dead ends: 8269 [2022-01-17 23:23:32,457 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=541, Invalid=1439, Unknown=0, NotChecked=0, Total=1980 [2022-01-17 23:23:32,457 INFO L933 BasicCegarLoop]: 311 mSDtfsCounter, 1145 mSDsluCounter, 2668 mSDsCounter, 0 mSdLazyCounter, 1118 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1145 SdHoareTripleChecker+Valid, 2860 SdHoareTripleChecker+Invalid, 1171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:32,457 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1145 Valid, 2860 Invalid, 1171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1118 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:23:32,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8269 states. [2022-01-17 23:23:32,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8269 to 3497. [2022-01-17 23:23:32,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3497 states, 3495 states have (on average 2.6643776824034333) internal successors, (9312), 3496 states have internal predecessors, (9312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:32,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3497 states to 3497 states and 9312 transitions. [2022-01-17 23:23:32,538 INFO L78 Accepts]: Start accepts. Automaton has 3497 states and 9312 transitions. Word has length 106 [2022-01-17 23:23:32,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:32,539 INFO L470 AbstractCegarLoop]: Abstraction has 3497 states and 9312 transitions. [2022-01-17 23:23:32,539 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:32,539 INFO L276 IsEmpty]: Start isEmpty. Operand 3497 states and 9312 transitions. [2022-01-17 23:23:32,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:23:32,543 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:32,543 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:23:32,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-01-17 23:23:32,543 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)] === [2022-01-17 23:23:32,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:32,544 INFO L85 PathProgramCache]: Analyzing trace with hash -994730920, now seen corresponding path program 48 times [2022-01-17 23:23:32,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:32,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522479910] [2022-01-17 23:23:32,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:32,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:32,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:33,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:33,043 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:33,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522479910] [2022-01-17 23:23:33,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522479910] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:33,043 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:33,043 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:23:33,043 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019095323] [2022-01-17 23:23:33,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:33,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:23:33,043 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:33,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:23:33,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:23:33,044 INFO L87 Difference]: Start difference. First operand 3497 states and 9312 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:35,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:35,696 INFO L93 Difference]: Finished difference Result 8368 states and 21563 transitions. [2022-01-17 23:23:35,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-17 23:23:35,697 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:23:35,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:35,706 INFO L225 Difference]: With dead ends: 8368 [2022-01-17 23:23:35,706 INFO L226 Difference]: Without dead ends: 8368 [2022-01-17 23:23:35,706 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=559, Invalid=1511, Unknown=0, NotChecked=0, Total=2070 [2022-01-17 23:23:35,706 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 964 mSDsluCounter, 2953 mSDsCounter, 0 mSdLazyCounter, 1188 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 964 SdHoareTripleChecker+Valid, 3132 SdHoareTripleChecker+Invalid, 1229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:35,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [964 Valid, 3132 Invalid, 1229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1188 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:23:35,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8368 states. [2022-01-17 23:23:35,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8368 to 3483. [2022-01-17 23:23:35,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3483 states, 3481 states have (on average 2.6630278655558746) internal successors, (9270), 3482 states have internal predecessors, (9270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:35,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3483 states to 3483 states and 9270 transitions. [2022-01-17 23:23:35,757 INFO L78 Accepts]: Start accepts. Automaton has 3483 states and 9270 transitions. Word has length 106 [2022-01-17 23:23:35,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:35,757 INFO L470 AbstractCegarLoop]: Abstraction has 3483 states and 9270 transitions. [2022-01-17 23:23:35,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:35,757 INFO L276 IsEmpty]: Start isEmpty. Operand 3483 states and 9270 transitions. [2022-01-17 23:23:35,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:23:35,761 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:35,761 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:23:35,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-01-17 23:23:35,761 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)] === [2022-01-17 23:23:35,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:35,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1384383696, now seen corresponding path program 49 times [2022-01-17 23:23:35,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:35,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109900161] [2022-01-17 23:23:35,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:35,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:35,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:36,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:36,268 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:36,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109900161] [2022-01-17 23:23:36,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109900161] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:36,268 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:36,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:23:36,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208442016] [2022-01-17 23:23:36,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:36,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:23:36,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:36,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:23:36,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:23:36,269 INFO L87 Difference]: Start difference. First operand 3483 states and 9270 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:38,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:38,841 INFO L93 Difference]: Finished difference Result 8427 states and 21697 transitions. [2022-01-17 23:23:38,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-17 23:23:38,841 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:23:38,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:38,850 INFO L225 Difference]: With dead ends: 8427 [2022-01-17 23:23:38,850 INFO L226 Difference]: Without dead ends: 8427 [2022-01-17 23:23:38,850 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=544, Invalid=1526, Unknown=0, NotChecked=0, Total=2070 [2022-01-17 23:23:38,851 INFO L933 BasicCegarLoop]: 297 mSDtfsCounter, 968 mSDsluCounter, 3174 mSDsCounter, 0 mSdLazyCounter, 1348 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 968 SdHoareTripleChecker+Valid, 3334 SdHoareTripleChecker+Invalid, 1392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:38,851 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [968 Valid, 3334 Invalid, 1392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1348 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:23:38,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8427 states. [2022-01-17 23:23:38,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8427 to 3455. [2022-01-17 23:23:38,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3455 states, 3453 states have (on average 2.6602953953084274) internal successors, (9186), 3454 states have internal predecessors, (9186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:38,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3455 states to 3455 states and 9186 transitions. [2022-01-17 23:23:38,909 INFO L78 Accepts]: Start accepts. Automaton has 3455 states and 9186 transitions. Word has length 106 [2022-01-17 23:23:38,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:38,909 INFO L470 AbstractCegarLoop]: Abstraction has 3455 states and 9186 transitions. [2022-01-17 23:23:38,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:38,910 INFO L276 IsEmpty]: Start isEmpty. Operand 3455 states and 9186 transitions. [2022-01-17 23:23:38,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:23:38,913 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:38,913 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:23:38,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-01-17 23:23:38,913 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)] === [2022-01-17 23:23:38,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:38,914 INFO L85 PathProgramCache]: Analyzing trace with hash 2083963730, now seen corresponding path program 50 times [2022-01-17 23:23:38,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:38,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285109123] [2022-01-17 23:23:38,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:38,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:38,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:39,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:39,473 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:39,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285109123] [2022-01-17 23:23:39,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285109123] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:39,474 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:39,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:23:39,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240871804] [2022-01-17 23:23:39,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:39,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:23:39,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:39,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:23:39,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:23:39,475 INFO L87 Difference]: Start difference. First operand 3455 states and 9186 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:42,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:42,571 INFO L93 Difference]: Finished difference Result 7812 states and 19986 transitions. [2022-01-17 23:23:42,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-17 23:23:42,571 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:23:42,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:42,587 INFO L225 Difference]: With dead ends: 7812 [2022-01-17 23:23:42,587 INFO L226 Difference]: Without dead ends: 7812 [2022-01-17 23:23:42,587 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=625, Invalid=1727, Unknown=0, NotChecked=0, Total=2352 [2022-01-17 23:23:42,588 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 1178 mSDsluCounter, 2817 mSDsCounter, 0 mSdLazyCounter, 1350 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1178 SdHoareTripleChecker+Valid, 2949 SdHoareTripleChecker+Invalid, 1436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:42,588 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1178 Valid, 2949 Invalid, 1436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 1350 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:23:42,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7812 states. [2022-01-17 23:23:42,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7812 to 3457. [2022-01-17 23:23:42,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3457 states, 3455 states have (on average 2.6602026049204053) internal successors, (9191), 3456 states have internal predecessors, (9191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:42,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3457 states to 3457 states and 9191 transitions. [2022-01-17 23:23:42,654 INFO L78 Accepts]: Start accepts. Automaton has 3457 states and 9191 transitions. Word has length 106 [2022-01-17 23:23:42,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:42,655 INFO L470 AbstractCegarLoop]: Abstraction has 3457 states and 9191 transitions. [2022-01-17 23:23:42,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:42,655 INFO L276 IsEmpty]: Start isEmpty. Operand 3457 states and 9191 transitions. [2022-01-17 23:23:42,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:23:42,659 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:42,659 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:23:42,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-01-17 23:23:42,659 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)] === [2022-01-17 23:23:42,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:42,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1207049738, now seen corresponding path program 51 times [2022-01-17 23:23:42,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:42,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527944760] [2022-01-17 23:23:42,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:42,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:42,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:43,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:43,250 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:43,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527944760] [2022-01-17 23:23:43,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527944760] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:43,250 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:43,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:23:43,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044427964] [2022-01-17 23:23:43,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:43,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:23:43,250 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:43,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:23:43,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=524, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:23:43,251 INFO L87 Difference]: Start difference. First operand 3457 states and 9191 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:47,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:47,418 INFO L93 Difference]: Finished difference Result 10584 states and 26949 transitions. [2022-01-17 23:23:47,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-17 23:23:47,419 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:23:47,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:47,431 INFO L225 Difference]: With dead ends: 10584 [2022-01-17 23:23:47,431 INFO L226 Difference]: Without dead ends: 10584 [2022-01-17 23:23:47,431 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=833, Invalid=1923, Unknown=0, NotChecked=0, Total=2756 [2022-01-17 23:23:47,432 INFO L933 BasicCegarLoop]: 342 mSDtfsCounter, 1403 mSDsluCounter, 3162 mSDsCounter, 0 mSdLazyCounter, 1359 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1403 SdHoareTripleChecker+Valid, 3362 SdHoareTripleChecker+Invalid, 1453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:47,432 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1403 Valid, 3362 Invalid, 1453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 1359 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:23:47,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10584 states. [2022-01-17 23:23:47,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10584 to 3541. [2022-01-17 23:23:47,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3541 states, 3539 states have (on average 2.668267872280305) internal successors, (9443), 3540 states have internal predecessors, (9443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:47,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3541 states to 3541 states and 9443 transitions. [2022-01-17 23:23:47,494 INFO L78 Accepts]: Start accepts. Automaton has 3541 states and 9443 transitions. Word has length 106 [2022-01-17 23:23:47,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:47,494 INFO L470 AbstractCegarLoop]: Abstraction has 3541 states and 9443 transitions. [2022-01-17 23:23:47,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:47,494 INFO L276 IsEmpty]: Start isEmpty. Operand 3541 states and 9443 transitions. [2022-01-17 23:23:47,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:23:47,497 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:47,497 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:23:47,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-01-17 23:23:47,498 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)] === [2022-01-17 23:23:47,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:47,498 INFO L85 PathProgramCache]: Analyzing trace with hash -630629024, now seen corresponding path program 52 times [2022-01-17 23:23:47,498 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:47,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832120601] [2022-01-17 23:23:47,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:47,498 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:47,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:48,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:48,001 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:48,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832120601] [2022-01-17 23:23:48,001 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832120601] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:48,001 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:48,001 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:23:48,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342457620] [2022-01-17 23:23:48,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:48,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:23:48,001 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:48,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:23:48,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:23:48,015 INFO L87 Difference]: Start difference. First operand 3541 states and 9443 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:50,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:50,755 INFO L93 Difference]: Finished difference Result 9991 states and 25594 transitions. [2022-01-17 23:23:50,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-17 23:23:50,755 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:23:50,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:50,770 INFO L225 Difference]: With dead ends: 9991 [2022-01-17 23:23:50,770 INFO L226 Difference]: Without dead ends: 9991 [2022-01-17 23:23:50,770 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=541, Invalid=1439, Unknown=0, NotChecked=0, Total=1980 [2022-01-17 23:23:50,770 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 1023 mSDsluCounter, 3510 mSDsCounter, 0 mSdLazyCounter, 1479 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1023 SdHoareTripleChecker+Valid, 3675 SdHoareTripleChecker+Invalid, 1526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:50,771 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1023 Valid, 3675 Invalid, 1526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1479 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:23:50,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9991 states. [2022-01-17 23:23:50,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9991 to 3527. [2022-01-17 23:23:50,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3527 states, 3525 states have (on average 2.666950354609929) internal successors, (9401), 3526 states have internal predecessors, (9401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:50,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3527 states to 3527 states and 9401 transitions. [2022-01-17 23:23:50,850 INFO L78 Accepts]: Start accepts. Automaton has 3527 states and 9401 transitions. Word has length 106 [2022-01-17 23:23:50,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:50,851 INFO L470 AbstractCegarLoop]: Abstraction has 3527 states and 9401 transitions. [2022-01-17 23:23:50,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:50,851 INFO L276 IsEmpty]: Start isEmpty. Operand 3527 states and 9401 transitions. [2022-01-17 23:23:50,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:23:50,854 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:50,854 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:23:50,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-01-17 23:23:50,855 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)] === [2022-01-17 23:23:50,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:50,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1484755030, now seen corresponding path program 53 times [2022-01-17 23:23:50,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:50,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237672485] [2022-01-17 23:23:50,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:50,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:50,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:51,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:51,370 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:51,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237672485] [2022-01-17 23:23:51,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237672485] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:51,370 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:51,371 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:23:51,371 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125184314] [2022-01-17 23:23:51,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:51,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:23:51,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:51,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:23:51,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:23:51,372 INFO L87 Difference]: Start difference. First operand 3527 states and 9401 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:55,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:55,071 INFO L93 Difference]: Finished difference Result 10673 states and 27073 transitions. [2022-01-17 23:23:55,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-17 23:23:55,072 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:23:55,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:55,084 INFO L225 Difference]: With dead ends: 10673 [2022-01-17 23:23:55,084 INFO L226 Difference]: Without dead ends: 10673 [2022-01-17 23:23:55,085 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 322 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=817, Invalid=2045, Unknown=0, NotChecked=0, Total=2862 [2022-01-17 23:23:55,085 INFO L933 BasicCegarLoop]: 341 mSDtfsCounter, 1254 mSDsluCounter, 3292 mSDsCounter, 0 mSdLazyCounter, 1483 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1254 SdHoareTripleChecker+Valid, 3468 SdHoareTripleChecker+Invalid, 1563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 1483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:55,085 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1254 Valid, 3468 Invalid, 1563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 1483 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:23:55,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10673 states. [2022-01-17 23:23:55,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10673 to 3513. [2022-01-17 23:23:55,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3513 states, 3511 states have (on average 2.665622329820564) internal successors, (9359), 3512 states have internal predecessors, (9359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:55,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3513 states to 3513 states and 9359 transitions. [2022-01-17 23:23:55,148 INFO L78 Accepts]: Start accepts. Automaton has 3513 states and 9359 transitions. Word has length 106 [2022-01-17 23:23:55,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:55,149 INFO L470 AbstractCegarLoop]: Abstraction has 3513 states and 9359 transitions. [2022-01-17 23:23:55,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:55,149 INFO L276 IsEmpty]: Start isEmpty. Operand 3513 states and 9359 transitions. [2022-01-17 23:23:55,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:23:55,152 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:55,152 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:23:55,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-01-17 23:23:55,153 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)] === [2022-01-17 23:23:55,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:55,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1874407806, now seen corresponding path program 54 times [2022-01-17 23:23:55,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:55,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830664864] [2022-01-17 23:23:55,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:55,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:55,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:55,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:55,668 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:55,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830664864] [2022-01-17 23:23:55,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830664864] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:55,669 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:55,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:23:55,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283601338] [2022-01-17 23:23:55,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:55,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:23:55,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:55,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:23:55,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:23:55,670 INFO L87 Difference]: Start difference. First operand 3513 states and 9359 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:58,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:58,504 INFO L93 Difference]: Finished difference Result 9863 states and 25184 transitions. [2022-01-17 23:23:58,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-17 23:23:58,504 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:23:58,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:58,518 INFO L225 Difference]: With dead ends: 9863 [2022-01-17 23:23:58,518 INFO L226 Difference]: Without dead ends: 9863 [2022-01-17 23:23:58,519 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=609, Invalid=1647, Unknown=0, NotChecked=0, Total=2256 [2022-01-17 23:23:58,519 INFO L933 BasicCegarLoop]: 320 mSDtfsCounter, 1016 mSDsluCounter, 3275 mSDsCounter, 0 mSdLazyCounter, 1489 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1016 SdHoareTripleChecker+Valid, 3433 SdHoareTripleChecker+Invalid, 1555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:58,519 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1016 Valid, 3433 Invalid, 1555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1489 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:23:58,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9863 states. [2022-01-17 23:23:58,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9863 to 3485. [2022-01-17 23:23:58,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3485 states, 3483 states have (on average 2.662934252081539) internal successors, (9275), 3484 states have internal predecessors, (9275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:58,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3485 states to 3485 states and 9275 transitions. [2022-01-17 23:23:58,594 INFO L78 Accepts]: Start accepts. Automaton has 3485 states and 9275 transitions. Word has length 106 [2022-01-17 23:23:58,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:58,594 INFO L470 AbstractCegarLoop]: Abstraction has 3485 states and 9275 transitions. [2022-01-17 23:23:58,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:58,594 INFO L276 IsEmpty]: Start isEmpty. Operand 3485 states and 9275 transitions. [2022-01-17 23:23:58,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:23:58,598 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:58,598 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:23:58,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-01-17 23:23:58,599 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)] === [2022-01-17 23:23:58,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:58,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1972849960, now seen corresponding path program 55 times [2022-01-17 23:23:58,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:58,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875332440] [2022-01-17 23:23:58,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:58,599 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:58,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:59,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:59,186 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:59,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875332440] [2022-01-17 23:23:59,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875332440] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:59,186 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:59,186 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:23:59,186 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298392527] [2022-01-17 23:23:59,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:59,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:23:59,187 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:59,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:23:59,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=524, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:23:59,187 INFO L87 Difference]: Start difference. First operand 3485 states and 9275 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:03,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:03,110 INFO L93 Difference]: Finished difference Result 10185 states and 25908 transitions. [2022-01-17 23:24:03,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:24:03,110 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:24:03,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:03,123 INFO L225 Difference]: With dead ends: 10185 [2022-01-17 23:24:03,123 INFO L226 Difference]: Without dead ends: 10185 [2022-01-17 23:24:03,124 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=776, Invalid=1774, Unknown=0, NotChecked=0, Total=2550 [2022-01-17 23:24:03,124 INFO L933 BasicCegarLoop]: 328 mSDtfsCounter, 1450 mSDsluCounter, 2926 mSDsCounter, 0 mSdLazyCounter, 1207 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1450 SdHoareTripleChecker+Valid, 3109 SdHoareTripleChecker+Invalid, 1296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 1207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:03,124 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1450 Valid, 3109 Invalid, 1296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 1207 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:24:03,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10185 states. [2022-01-17 23:24:03,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10185 to 3527. [2022-01-17 23:24:03,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3527 states, 3525 states have (on average 2.666950354609929) internal successors, (9401), 3526 states have internal predecessors, (9401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:03,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3527 states to 3527 states and 9401 transitions. [2022-01-17 23:24:03,196 INFO L78 Accepts]: Start accepts. Automaton has 3527 states and 9401 transitions. Word has length 106 [2022-01-17 23:24:03,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:03,197 INFO L470 AbstractCegarLoop]: Abstraction has 3527 states and 9401 transitions. [2022-01-17 23:24:03,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:03,197 INFO L276 IsEmpty]: Start isEmpty. Operand 3527 states and 9401 transitions. [2022-01-17 23:24:03,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:24:03,200 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:03,200 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:03,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-01-17 23:24:03,201 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)] === [2022-01-17 23:24:03,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:03,201 INFO L85 PathProgramCache]: Analyzing trace with hash -757250946, now seen corresponding path program 56 times [2022-01-17 23:24:03,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:03,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24169081] [2022-01-17 23:24:03,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:03,201 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:03,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:03,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:03,708 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:03,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24169081] [2022-01-17 23:24:03,708 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24169081] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:03,708 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:03,708 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:24:03,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656658388] [2022-01-17 23:24:03,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:03,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:24:03,709 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:03,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:24:03,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:24:03,709 INFO L87 Difference]: Start difference. First operand 3527 states and 9401 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:06,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:06,460 INFO L93 Difference]: Finished difference Result 9629 states and 24632 transitions. [2022-01-17 23:24:06,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-17 23:24:06,460 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:24:06,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:06,470 INFO L225 Difference]: With dead ends: 9629 [2022-01-17 23:24:06,470 INFO L226 Difference]: Without dead ends: 9629 [2022-01-17 23:24:06,471 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=541, Invalid=1439, Unknown=0, NotChecked=0, Total=1980 [2022-01-17 23:24:06,471 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 1017 mSDsluCounter, 3478 mSDsCounter, 0 mSdLazyCounter, 1523 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1017 SdHoareTripleChecker+Valid, 3633 SdHoareTripleChecker+Invalid, 1569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:06,471 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1017 Valid, 3633 Invalid, 1569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1523 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:24:06,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9629 states. [2022-01-17 23:24:06,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9629 to 3513. [2022-01-17 23:24:06,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3513 states, 3511 states have (on average 2.665622329820564) internal successors, (9359), 3512 states have internal predecessors, (9359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:06,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3513 states to 3513 states and 9359 transitions. [2022-01-17 23:24:06,531 INFO L78 Accepts]: Start accepts. Automaton has 3513 states and 9359 transitions. Word has length 106 [2022-01-17 23:24:06,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:06,532 INFO L470 AbstractCegarLoop]: Abstraction has 3513 states and 9359 transitions. [2022-01-17 23:24:06,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:06,532 INFO L276 IsEmpty]: Start isEmpty. Operand 3513 states and 9359 transitions. [2022-01-17 23:24:06,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:24:06,535 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:06,535 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:06,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-01-17 23:24:06,535 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)] === [2022-01-17 23:24:06,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:06,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1611376952, now seen corresponding path program 57 times [2022-01-17 23:24:06,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:06,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863412727] [2022-01-17 23:24:06,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:06,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:06,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:07,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:07,071 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:07,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863412727] [2022-01-17 23:24:07,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863412727] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:07,072 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:07,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:24:07,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096631275] [2022-01-17 23:24:07,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:07,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:24:07,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:07,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:24:07,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:24:07,073 INFO L87 Difference]: Start difference. First operand 3513 states and 9359 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:09,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:09,782 INFO L93 Difference]: Finished difference Result 9520 states and 24281 transitions. [2022-01-17 23:24:09,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:24:09,782 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:24:09,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:09,795 INFO L225 Difference]: With dead ends: 9520 [2022-01-17 23:24:09,795 INFO L226 Difference]: Without dead ends: 9520 [2022-01-17 23:24:09,795 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=592, Invalid=1570, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:24:09,795 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 1032 mSDsluCounter, 3345 mSDsCounter, 0 mSdLazyCounter, 1358 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1032 SdHoareTripleChecker+Valid, 3514 SdHoareTripleChecker+Invalid, 1423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:09,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1032 Valid, 3514 Invalid, 1423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1358 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:24:09,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9520 states. [2022-01-17 23:24:09,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9520 to 3499. [2022-01-17 23:24:09,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3499 states, 3497 states have (on average 2.664283671718616) internal successors, (9317), 3498 states have internal predecessors, (9317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:09,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3499 states to 3499 states and 9317 transitions. [2022-01-17 23:24:09,873 INFO L78 Accepts]: Start accepts. Automaton has 3499 states and 9317 transitions. Word has length 106 [2022-01-17 23:24:09,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:09,873 INFO L470 AbstractCegarLoop]: Abstraction has 3499 states and 9317 transitions. [2022-01-17 23:24:09,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:09,873 INFO L276 IsEmpty]: Start isEmpty. Operand 3499 states and 9317 transitions. [2022-01-17 23:24:09,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:24:09,877 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:09,877 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:09,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-01-17 23:24:09,877 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)] === [2022-01-17 23:24:09,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:09,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1980725018, now seen corresponding path program 58 times [2022-01-17 23:24:09,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:09,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936492534] [2022-01-17 23:24:09,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:09,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:09,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:10,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:10,458 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:10,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936492534] [2022-01-17 23:24:10,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936492534] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:10,461 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:10,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:24:10,461 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538412865] [2022-01-17 23:24:10,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:10,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:24:10,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:10,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:24:10,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=524, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:24:10,462 INFO L87 Difference]: Start difference. First operand 3499 states and 9317 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:14,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:14,405 INFO L93 Difference]: Finished difference Result 9218 states and 23448 transitions. [2022-01-17 23:24:14,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:24:14,406 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:24:14,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:14,415 INFO L225 Difference]: With dead ends: 9218 [2022-01-17 23:24:14,415 INFO L226 Difference]: Without dead ends: 9218 [2022-01-17 23:24:14,415 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=783, Invalid=1767, Unknown=0, NotChecked=0, Total=2550 [2022-01-17 23:24:14,418 INFO L933 BasicCegarLoop]: 341 mSDtfsCounter, 1158 mSDsluCounter, 3095 mSDsCounter, 0 mSdLazyCounter, 1261 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1158 SdHoareTripleChecker+Valid, 3295 SdHoareTripleChecker+Invalid, 1327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:14,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1158 Valid, 3295 Invalid, 1327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1261 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:24:14,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9218 states. [2022-01-17 23:24:14,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9218 to 3527. [2022-01-17 23:24:14,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3527 states, 3525 states have (on average 2.666950354609929) internal successors, (9401), 3526 states have internal predecessors, (9401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:14,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3527 states to 3527 states and 9401 transitions. [2022-01-17 23:24:14,477 INFO L78 Accepts]: Start accepts. Automaton has 3527 states and 9401 transitions. Word has length 106 [2022-01-17 23:24:14,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:14,477 INFO L470 AbstractCegarLoop]: Abstraction has 3527 states and 9401 transitions. [2022-01-17 23:24:14,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:14,477 INFO L276 IsEmpty]: Start isEmpty. Operand 3527 states and 9401 transitions. [2022-01-17 23:24:14,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:24:14,480 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:14,481 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:14,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-01-17 23:24:14,481 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)] === [2022-01-17 23:24:14,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:14,481 INFO L85 PathProgramCache]: Analyzing trace with hash 217273298, now seen corresponding path program 59 times [2022-01-17 23:24:14,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:14,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510195749] [2022-01-17 23:24:14,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:14,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:14,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:14,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:14,987 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:14,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510195749] [2022-01-17 23:24:14,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510195749] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:14,988 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:14,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:24:14,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620981335] [2022-01-17 23:24:14,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:14,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:24:14,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:14,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:24:14,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:24:14,989 INFO L87 Difference]: Start difference. First operand 3527 states and 9401 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:18,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:18,474 INFO L93 Difference]: Finished difference Result 8942 states and 22751 transitions. [2022-01-17 23:24:18,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:24:18,475 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:24:18,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:18,485 INFO L225 Difference]: With dead ends: 8942 [2022-01-17 23:24:18,485 INFO L226 Difference]: Without dead ends: 8942 [2022-01-17 23:24:18,485 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=779, Invalid=1873, Unknown=0, NotChecked=0, Total=2652 [2022-01-17 23:24:18,486 INFO L933 BasicCegarLoop]: 341 mSDtfsCounter, 1092 mSDsluCounter, 3171 mSDsCounter, 0 mSdLazyCounter, 1400 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1092 SdHoareTripleChecker+Valid, 3357 SdHoareTripleChecker+Invalid, 1469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:18,486 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1092 Valid, 3357 Invalid, 1469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1400 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:24:18,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8942 states. [2022-01-17 23:24:18,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8942 to 3513. [2022-01-17 23:24:18,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3513 states, 3511 states have (on average 2.665622329820564) internal successors, (9359), 3512 states have internal predecessors, (9359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:18,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3513 states to 3513 states and 9359 transitions. [2022-01-17 23:24:18,553 INFO L78 Accepts]: Start accepts. Automaton has 3513 states and 9359 transitions. Word has length 106 [2022-01-17 23:24:18,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:18,553 INFO L470 AbstractCegarLoop]: Abstraction has 3513 states and 9359 transitions. [2022-01-17 23:24:18,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:18,554 INFO L276 IsEmpty]: Start isEmpty. Operand 3513 states and 9359 transitions. [2022-01-17 23:24:18,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:24:18,557 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:18,557 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:18,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-01-17 23:24:18,558 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)] === [2022-01-17 23:24:18,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:18,558 INFO L85 PathProgramCache]: Analyzing trace with hash 74318314, now seen corresponding path program 60 times [2022-01-17 23:24:18,558 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:18,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995363749] [2022-01-17 23:24:18,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:18,558 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:18,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:19,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:19,105 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:19,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995363749] [2022-01-17 23:24:19,106 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995363749] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:19,106 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:19,106 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:24:19,106 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804251360] [2022-01-17 23:24:19,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:19,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:24:19,107 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:19,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:24:19,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:24:19,108 INFO L87 Difference]: Start difference. First operand 3513 states and 9359 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:22,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:22,725 INFO L93 Difference]: Finished difference Result 8281 states and 21105 transitions. [2022-01-17 23:24:22,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:24:22,725 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:24:22,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:22,735 INFO L225 Difference]: With dead ends: 8281 [2022-01-17 23:24:22,735 INFO L226 Difference]: Without dead ends: 8281 [2022-01-17 23:24:22,735 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=593, Invalid=1569, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:24:22,736 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 1299 mSDsluCounter, 3799 mSDsCounter, 0 mSdLazyCounter, 1690 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1299 SdHoareTripleChecker+Valid, 3930 SdHoareTripleChecker+Invalid, 1759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:22,736 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1299 Valid, 3930 Invalid, 1759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1690 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-17 23:24:22,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8281 states. [2022-01-17 23:24:22,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8281 to 3499. [2022-01-17 23:24:22,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3499 states, 3497 states have (on average 2.664283671718616) internal successors, (9317), 3498 states have internal predecessors, (9317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:22,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3499 states to 3499 states and 9317 transitions. [2022-01-17 23:24:22,799 INFO L78 Accepts]: Start accepts. Automaton has 3499 states and 9317 transitions. Word has length 106 [2022-01-17 23:24:22,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:22,799 INFO L470 AbstractCegarLoop]: Abstraction has 3499 states and 9317 transitions. [2022-01-17 23:24:22,799 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:22,799 INFO L276 IsEmpty]: Start isEmpty. Operand 3499 states and 9317 transitions. [2022-01-17 23:24:22,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:24:22,803 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:22,803 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:22,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-01-17 23:24:22,803 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)] === [2022-01-17 23:24:22,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:22,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1748014160, now seen corresponding path program 61 times [2022-01-17 23:24:22,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:22,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101806344] [2022-01-17 23:24:22,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:22,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:22,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:23,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:23,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:23,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101806344] [2022-01-17 23:24:23,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101806344] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:23,309 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:23,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:24:23,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795698711] [2022-01-17 23:24:23,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:23,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:24:23,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:23,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:24:23,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:24:23,310 INFO L87 Difference]: Start difference. First operand 3499 states and 9317 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:25,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:25,904 INFO L93 Difference]: Finished difference Result 8131 states and 20728 transitions. [2022-01-17 23:24:25,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-17 23:24:25,905 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:24:25,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:25,913 INFO L225 Difference]: With dead ends: 8131 [2022-01-17 23:24:25,913 INFO L226 Difference]: Without dead ends: 8131 [2022-01-17 23:24:25,914 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=544, Invalid=1526, Unknown=0, NotChecked=0, Total=2070 [2022-01-17 23:24:25,914 INFO L933 BasicCegarLoop]: 308 mSDtfsCounter, 980 mSDsluCounter, 3011 mSDsCounter, 0 mSdLazyCounter, 1202 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 980 SdHoareTripleChecker+Valid, 3155 SdHoareTripleChecker+Invalid, 1254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:25,914 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [980 Valid, 3155 Invalid, 1254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1202 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:24:25,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8131 states. [2022-01-17 23:24:25,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8131 to 3501. [2022-01-17 23:24:25,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3501 states, 3499 states have (on average 2.6641897685052873) internal successors, (9322), 3500 states have internal predecessors, (9322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:25,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3501 states to 3501 states and 9322 transitions. [2022-01-17 23:24:25,973 INFO L78 Accepts]: Start accepts. Automaton has 3501 states and 9322 transitions. Word has length 106 [2022-01-17 23:24:25,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:25,973 INFO L470 AbstractCegarLoop]: Abstraction has 3501 states and 9322 transitions. [2022-01-17 23:24:25,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:25,974 INFO L276 IsEmpty]: Start isEmpty. Operand 3501 states and 9322 transitions. [2022-01-17 23:24:25,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:24:25,977 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:25,977 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:25,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-01-17 23:24:25,977 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)] === [2022-01-17 23:24:25,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:25,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1986178434, now seen corresponding path program 62 times [2022-01-17 23:24:25,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:25,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085614055] [2022-01-17 23:24:25,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:25,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:26,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:26,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:26,555 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:26,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085614055] [2022-01-17 23:24:26,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085614055] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:26,555 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:26,555 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-17 23:24:26,556 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118631327] [2022-01-17 23:24:26,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:26,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-17 23:24:26,556 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:26,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-17 23:24:26,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=579, Unknown=0, NotChecked=0, Total=650 [2022-01-17 23:24:26,556 INFO L87 Difference]: Start difference. First operand 3501 states and 9322 transitions. Second operand has 26 states, 26 states have (on average 4.076923076923077) internal successors, (106), 26 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:29,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:29,171 INFO L93 Difference]: Finished difference Result 8148 states and 20742 transitions. [2022-01-17 23:24:29,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:24:29,171 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.076923076923077) internal successors, (106), 26 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:24:29,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:29,181 INFO L225 Difference]: With dead ends: 8148 [2022-01-17 23:24:29,181 INFO L226 Difference]: Without dead ends: 8148 [2022-01-17 23:24:29,181 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=579, Invalid=1677, Unknown=0, NotChecked=0, Total=2256 [2022-01-17 23:24:29,182 INFO L933 BasicCegarLoop]: 309 mSDtfsCounter, 980 mSDsluCounter, 3107 mSDsCounter, 0 mSdLazyCounter, 1361 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 980 SdHoareTripleChecker+Valid, 3243 SdHoareTripleChecker+Invalid, 1405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:29,182 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [980 Valid, 3243 Invalid, 1405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1361 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:24:29,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8148 states. [2022-01-17 23:24:29,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8148 to 3505. [2022-01-17 23:24:29,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3505 states, 3503 states have (on average 2.66400228375678) internal successors, (9332), 3504 states have internal predecessors, (9332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:29,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3505 states to 3505 states and 9332 transitions. [2022-01-17 23:24:29,246 INFO L78 Accepts]: Start accepts. Automaton has 3505 states and 9332 transitions. Word has length 106 [2022-01-17 23:24:29,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:29,246 INFO L470 AbstractCegarLoop]: Abstraction has 3505 states and 9332 transitions. [2022-01-17 23:24:29,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.076923076923077) internal successors, (106), 26 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:29,246 INFO L276 IsEmpty]: Start isEmpty. Operand 3505 states and 9332 transitions. [2022-01-17 23:24:29,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:24:29,250 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:29,250 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:29,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-01-17 23:24:29,250 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)] === [2022-01-17 23:24:29,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:29,250 INFO L85 PathProgramCache]: Analyzing trace with hash -273489956, now seen corresponding path program 63 times [2022-01-17 23:24:29,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:29,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825005295] [2022-01-17 23:24:29,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:29,251 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:29,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:29,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:29,743 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:29,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825005295] [2022-01-17 23:24:29,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825005295] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:29,743 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:29,743 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:24:29,743 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272005994] [2022-01-17 23:24:29,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:29,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:24:29,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:29,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:24:29,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:24:29,744 INFO L87 Difference]: Start difference. First operand 3505 states and 9332 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:32,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:32,455 INFO L93 Difference]: Finished difference Result 8089 states and 20643 transitions. [2022-01-17 23:24:32,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:24:32,459 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:24:32,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:32,470 INFO L225 Difference]: With dead ends: 8089 [2022-01-17 23:24:32,470 INFO L226 Difference]: Without dead ends: 8089 [2022-01-17 23:24:32,470 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=578, Invalid=1584, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:24:32,470 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 952 mSDsluCounter, 3416 mSDsCounter, 0 mSdLazyCounter, 1492 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 952 SdHoareTripleChecker+Valid, 3540 SdHoareTripleChecker+Invalid, 1538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:32,471 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [952 Valid, 3540 Invalid, 1538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1492 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:24:32,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8089 states. [2022-01-17 23:24:32,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8089 to 3485. [2022-01-17 23:24:32,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3485 states, 3483 states have (on average 2.662934252081539) internal successors, (9275), 3484 states have internal predecessors, (9275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:32,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3485 states to 3485 states and 9275 transitions. [2022-01-17 23:24:32,533 INFO L78 Accepts]: Start accepts. Automaton has 3485 states and 9275 transitions. Word has length 106 [2022-01-17 23:24:32,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:32,533 INFO L470 AbstractCegarLoop]: Abstraction has 3485 states and 9275 transitions. [2022-01-17 23:24:32,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:32,534 INFO L276 IsEmpty]: Start isEmpty. Operand 3485 states and 9275 transitions. [2022-01-17 23:24:32,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:24:32,537 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:32,537 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:32,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-01-17 23:24:32,537 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)] === [2022-01-17 23:24:32,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:32,538 INFO L85 PathProgramCache]: Analyzing trace with hash -784258134, now seen corresponding path program 64 times [2022-01-17 23:24:32,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:32,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316863582] [2022-01-17 23:24:32,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:32,538 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:32,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:33,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:33,061 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:33,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316863582] [2022-01-17 23:24:33,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316863582] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:33,062 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:33,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:24:33,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435065747] [2022-01-17 23:24:33,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:33,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:24:33,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:33,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:24:33,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:24:33,064 INFO L87 Difference]: Start difference. First operand 3485 states and 9275 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:35,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:35,532 INFO L93 Difference]: Finished difference Result 8228 states and 20948 transitions. [2022-01-17 23:24:35,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-17 23:24:35,532 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:24:35,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:35,543 INFO L225 Difference]: With dead ends: 8228 [2022-01-17 23:24:35,543 INFO L226 Difference]: Without dead ends: 8228 [2022-01-17 23:24:35,543 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=529, Invalid=1541, Unknown=0, NotChecked=0, Total=2070 [2022-01-17 23:24:35,544 INFO L933 BasicCegarLoop]: 298 mSDtfsCounter, 999 mSDsluCounter, 3185 mSDsCounter, 0 mSdLazyCounter, 1360 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 999 SdHoareTripleChecker+Valid, 3314 SdHoareTripleChecker+Invalid, 1402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:35,544 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [999 Valid, 3314 Invalid, 1402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1360 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:24:35,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8228 states. [2022-01-17 23:24:35,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8228 to 3489. [2022-01-17 23:24:35,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3489 states, 3487 states have (on average 2.662747347289934) internal successors, (9285), 3488 states have internal predecessors, (9285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:35,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3489 states to 3489 states and 9285 transitions. [2022-01-17 23:24:35,611 INFO L78 Accepts]: Start accepts. Automaton has 3489 states and 9285 transitions. Word has length 106 [2022-01-17 23:24:35,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:35,612 INFO L470 AbstractCegarLoop]: Abstraction has 3489 states and 9285 transitions. [2022-01-17 23:24:35,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:35,612 INFO L276 IsEmpty]: Start isEmpty. Operand 3489 states and 9285 transitions. [2022-01-17 23:24:35,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:24:35,615 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:35,616 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:35,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-01-17 23:24:35,616 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)] === [2022-01-17 23:24:35,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:35,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1677390278, now seen corresponding path program 65 times [2022-01-17 23:24:35,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:35,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964169934] [2022-01-17 23:24:35,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:35,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:35,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:36,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:36,193 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:36,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964169934] [2022-01-17 23:24:36,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964169934] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:36,194 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:36,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:24:36,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760081328] [2022-01-17 23:24:36,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:36,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:24:36,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:36,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:24:36,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:24:36,195 INFO L87 Difference]: Start difference. First operand 3489 states and 9285 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:38,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:38,643 INFO L93 Difference]: Finished difference Result 8321 states and 21106 transitions. [2022-01-17 23:24:38,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:24:38,644 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:24:38,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:38,654 INFO L225 Difference]: With dead ends: 8321 [2022-01-17 23:24:38,654 INFO L226 Difference]: Without dead ends: 8321 [2022-01-17 23:24:38,655 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=562, Invalid=1600, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:24:38,655 INFO L933 BasicCegarLoop]: 292 mSDtfsCounter, 981 mSDsluCounter, 2925 mSDsCounter, 0 mSdLazyCounter, 1246 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 981 SdHoareTripleChecker+Valid, 3046 SdHoareTripleChecker+Invalid, 1298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:38,655 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [981 Valid, 3046 Invalid, 1298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1246 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:24:38,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8321 states. [2022-01-17 23:24:38,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8321 to 3491. [2022-01-17 23:24:38,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3491 states, 3489 states have (on average 2.662654055603325) internal successors, (9290), 3490 states have internal predecessors, (9290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:38,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3491 states to 3491 states and 9290 transitions. [2022-01-17 23:24:38,744 INFO L78 Accepts]: Start accepts. Automaton has 3491 states and 9290 transitions. Word has length 106 [2022-01-17 23:24:38,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:38,744 INFO L470 AbstractCegarLoop]: Abstraction has 3491 states and 9290 transitions. [2022-01-17 23:24:38,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:38,744 INFO L276 IsEmpty]: Start isEmpty. Operand 3491 states and 9290 transitions. [2022-01-17 23:24:38,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:24:38,748 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:38,748 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:38,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-01-17 23:24:38,748 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)] === [2022-01-17 23:24:38,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:38,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1915554552, now seen corresponding path program 66 times [2022-01-17 23:24:38,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:38,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13115392] [2022-01-17 23:24:38,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:38,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:38,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:39,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:39,355 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:39,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13115392] [2022-01-17 23:24:39,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13115392] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:39,355 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:39,355 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:24:39,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118382985] [2022-01-17 23:24:39,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:39,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:24:39,356 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:39,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:24:39,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:24:39,356 INFO L87 Difference]: Start difference. First operand 3491 states and 9290 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:42,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:42,207 INFO L93 Difference]: Finished difference Result 8138 states and 20752 transitions. [2022-01-17 23:24:42,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:24:42,208 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:24:42,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:42,216 INFO L225 Difference]: With dead ends: 8138 [2022-01-17 23:24:42,216 INFO L226 Difference]: Without dead ends: 8138 [2022-01-17 23:24:42,217 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=563, Invalid=1599, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:24:42,230 INFO L933 BasicCegarLoop]: 293 mSDtfsCounter, 1084 mSDsluCounter, 3198 mSDsCounter, 0 mSdLazyCounter, 1454 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1084 SdHoareTripleChecker+Valid, 3310 SdHoareTripleChecker+Invalid, 1505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:42,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1084 Valid, 3310 Invalid, 1505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1454 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:24:42,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8138 states. [2022-01-17 23:24:42,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8138 to 3457. [2022-01-17 23:24:42,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3457 states, 3455 states have (on average 2.6602026049204053) internal successors, (9191), 3456 states have internal predecessors, (9191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:42,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3457 states to 3457 states and 9191 transitions. [2022-01-17 23:24:42,288 INFO L78 Accepts]: Start accepts. Automaton has 3457 states and 9191 transitions. Word has length 106 [2022-01-17 23:24:42,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:42,288 INFO L470 AbstractCegarLoop]: Abstraction has 3457 states and 9191 transitions. [2022-01-17 23:24:42,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:42,288 INFO L276 IsEmpty]: Start isEmpty. Operand 3457 states and 9191 transitions. [2022-01-17 23:24:42,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:24:42,291 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:42,292 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:42,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-01-17 23:24:42,293 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)] === [2022-01-17 23:24:42,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:42,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1141070486, now seen corresponding path program 67 times [2022-01-17 23:24:42,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:42,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654568825] [2022-01-17 23:24:42,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:42,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:42,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:42,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:42,791 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:42,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654568825] [2022-01-17 23:24:42,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654568825] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:42,791 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:42,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:24:42,791 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420123016] [2022-01-17 23:24:42,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:42,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:24:42,792 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:42,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:24:42,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:24:42,792 INFO L87 Difference]: Start difference. First operand 3457 states and 9191 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:45,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:45,192 INFO L93 Difference]: Finished difference Result 7068 states and 17938 transitions. [2022-01-17 23:24:45,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-17 23:24:45,193 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:24:45,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:45,201 INFO L225 Difference]: With dead ends: 7068 [2022-01-17 23:24:45,201 INFO L226 Difference]: Without dead ends: 7068 [2022-01-17 23:24:45,201 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=514, Invalid=1556, Unknown=0, NotChecked=0, Total=2070 [2022-01-17 23:24:45,201 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 933 mSDsluCounter, 3177 mSDsCounter, 0 mSdLazyCounter, 1465 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 933 SdHoareTripleChecker+Valid, 3280 SdHoareTripleChecker+Invalid, 1510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:45,202 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [933 Valid, 3280 Invalid, 1510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1465 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:24:45,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7068 states. [2022-01-17 23:24:45,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7068 to 3459. [2022-01-17 23:24:45,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3459 states, 3457 states have (on average 2.660109921897599) internal successors, (9196), 3458 states have internal predecessors, (9196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:45,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3459 states to 3459 states and 9196 transitions. [2022-01-17 23:24:45,256 INFO L78 Accepts]: Start accepts. Automaton has 3459 states and 9196 transitions. Word has length 106 [2022-01-17 23:24:45,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:45,256 INFO L470 AbstractCegarLoop]: Abstraction has 3459 states and 9196 transitions. [2022-01-17 23:24:45,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:45,256 INFO L276 IsEmpty]: Start isEmpty. Operand 3459 states and 9196 transitions. [2022-01-17 23:24:45,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:24:45,260 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:45,260 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:45,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-01-17 23:24:45,260 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)] === [2022-01-17 23:24:45,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:45,260 INFO L85 PathProgramCache]: Analyzing trace with hash 671163446, now seen corresponding path program 68 times [2022-01-17 23:24:45,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:45,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208232189] [2022-01-17 23:24:45,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:45,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:45,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:45,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:45,780 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:45,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208232189] [2022-01-17 23:24:45,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208232189] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:45,780 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:45,780 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:24:45,780 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894704386] [2022-01-17 23:24:45,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:45,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:24:45,781 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:45,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:24:45,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:24:45,781 INFO L87 Difference]: Start difference. First operand 3459 states and 9196 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:48,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:48,356 INFO L93 Difference]: Finished difference Result 7183 states and 18142 transitions. [2022-01-17 23:24:48,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-17 23:24:48,356 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:24:48,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:48,364 INFO L225 Difference]: With dead ends: 7183 [2022-01-17 23:24:48,365 INFO L226 Difference]: Without dead ends: 7183 [2022-01-17 23:24:48,365 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=579, Invalid=1677, Unknown=0, NotChecked=0, Total=2256 [2022-01-17 23:24:48,365 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 1002 mSDsluCounter, 2881 mSDsCounter, 0 mSdLazyCounter, 1352 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1002 SdHoareTripleChecker+Valid, 2978 SdHoareTripleChecker+Invalid, 1411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:48,365 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1002 Valid, 2978 Invalid, 1411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1352 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:24:48,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7183 states. [2022-01-17 23:24:48,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7183 to 3463. [2022-01-17 23:24:48,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3463 states, 3461 states have (on average 2.6599248772031205) internal successors, (9206), 3462 states have internal predecessors, (9206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:48,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3463 states to 3463 states and 9206 transitions. [2022-01-17 23:24:48,419 INFO L78 Accepts]: Start accepts. Automaton has 3463 states and 9206 transitions. Word has length 106 [2022-01-17 23:24:48,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:48,420 INFO L470 AbstractCegarLoop]: Abstraction has 3463 states and 9206 transitions. [2022-01-17 23:24:48,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:48,420 INFO L276 IsEmpty]: Start isEmpty. Operand 3463 states and 9206 transitions. [2022-01-17 23:24:48,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:24:48,423 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:48,423 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:48,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-01-17 23:24:48,424 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)] === [2022-01-17 23:24:48,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:48,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1481013848, now seen corresponding path program 69 times [2022-01-17 23:24:48,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:48,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918921455] [2022-01-17 23:24:48,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:48,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:48,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:48,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:48,925 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:48,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918921455] [2022-01-17 23:24:48,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918921455] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:48,925 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:48,925 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:24:48,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892669678] [2022-01-17 23:24:48,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:48,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:24:48,926 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:48,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:24:48,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:24:48,926 INFO L87 Difference]: Start difference. First operand 3463 states and 9206 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:51,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:51,283 INFO L93 Difference]: Finished difference Result 7094 states and 17964 transitions. [2022-01-17 23:24:51,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-17 23:24:51,283 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:24:51,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:51,293 INFO L225 Difference]: With dead ends: 7094 [2022-01-17 23:24:51,293 INFO L226 Difference]: Without dead ends: 7094 [2022-01-17 23:24:51,294 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=514, Invalid=1556, Unknown=0, NotChecked=0, Total=2070 [2022-01-17 23:24:51,294 INFO L933 BasicCegarLoop]: 261 mSDtfsCounter, 935 mSDsluCounter, 3175 mSDsCounter, 0 mSdLazyCounter, 1346 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 935 SdHoareTripleChecker+Valid, 3271 SdHoareTripleChecker+Invalid, 1387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:51,294 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [935 Valid, 3271 Invalid, 1387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1346 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:24:51,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7094 states. [2022-01-17 23:24:51,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7094 to 3465. [2022-01-17 23:24:51,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3465 states, 3463 states have (on average 2.6598325151602658) internal successors, (9211), 3464 states have internal predecessors, (9211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:51,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3465 states to 3465 states and 9211 transitions. [2022-01-17 23:24:51,355 INFO L78 Accepts]: Start accepts. Automaton has 3465 states and 9211 transitions. Word has length 106 [2022-01-17 23:24:51,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:51,356 INFO L470 AbstractCegarLoop]: Abstraction has 3465 states and 9211 transitions. [2022-01-17 23:24:51,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:51,356 INFO L276 IsEmpty]: Start isEmpty. Operand 3465 states and 9211 transitions. [2022-01-17 23:24:51,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:24:51,359 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:51,359 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:51,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-01-17 23:24:51,360 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)] === [2022-01-17 23:24:51,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:51,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1242849574, now seen corresponding path program 70 times [2022-01-17 23:24:51,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:51,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400540439] [2022-01-17 23:24:51,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:51,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:51,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:51,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:51,860 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:51,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400540439] [2022-01-17 23:24:51,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400540439] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:51,861 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:51,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:24:51,861 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497492296] [2022-01-17 23:24:51,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:51,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:24:51,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:51,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:24:51,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:24:51,862 INFO L87 Difference]: Start difference. First operand 3465 states and 9211 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:54,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:54,422 INFO L93 Difference]: Finished difference Result 6949 states and 17674 transitions. [2022-01-17 23:24:54,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:24:54,422 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:24:54,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:54,431 INFO L225 Difference]: With dead ends: 6949 [2022-01-17 23:24:54,432 INFO L226 Difference]: Without dead ends: 6949 [2022-01-17 23:24:54,432 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=548, Invalid=1614, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:24:54,432 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 939 mSDsluCounter, 3167 mSDsCounter, 0 mSdLazyCounter, 1461 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 939 SdHoareTripleChecker+Valid, 3258 SdHoareTripleChecker+Invalid, 1513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:54,432 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [939 Valid, 3258 Invalid, 1513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1461 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:24:54,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6949 states. [2022-01-17 23:24:54,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6949 to 3459. [2022-01-17 23:24:54,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3459 states, 3457 states have (on average 2.660109921897599) internal successors, (9196), 3458 states have internal predecessors, (9196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:54,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3459 states to 3459 states and 9196 transitions. [2022-01-17 23:24:54,494 INFO L78 Accepts]: Start accepts. Automaton has 3459 states and 9196 transitions. Word has length 106 [2022-01-17 23:24:54,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:54,494 INFO L470 AbstractCegarLoop]: Abstraction has 3459 states and 9196 transitions. [2022-01-17 23:24:54,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:54,494 INFO L276 IsEmpty]: Start isEmpty. Operand 3459 states and 9196 transitions. [2022-01-17 23:24:54,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:24:54,498 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:54,498 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:54,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-01-17 23:24:54,498 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)] === [2022-01-17 23:24:54,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:54,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1777921438, now seen corresponding path program 71 times [2022-01-17 23:24:54,498 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:54,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346525077] [2022-01-17 23:24:54,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:54,499 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:54,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:55,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:55,073 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:55,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346525077] [2022-01-17 23:24:55,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346525077] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:55,073 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:55,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:24:55,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250082729] [2022-01-17 23:24:55,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:55,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:24:55,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:55,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:24:55,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:24:55,074 INFO L87 Difference]: Start difference. First operand 3459 states and 9196 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:57,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:57,274 INFO L93 Difference]: Finished difference Result 6077 states and 15532 transitions. [2022-01-17 23:24:57,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-17 23:24:57,274 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:24:57,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:57,282 INFO L225 Difference]: With dead ends: 6077 [2022-01-17 23:24:57,282 INFO L226 Difference]: Without dead ends: 6077 [2022-01-17 23:24:57,283 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=496, Invalid=1574, Unknown=0, NotChecked=0, Total=2070 [2022-01-17 23:24:57,283 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 910 mSDsluCounter, 2599 mSDsCounter, 0 mSdLazyCounter, 1121 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 910 SdHoareTripleChecker+Valid, 2701 SdHoareTripleChecker+Invalid, 1172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:57,283 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [910 Valid, 2701 Invalid, 1172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1121 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:24:57,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6077 states. [2022-01-17 23:24:57,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6077 to 3475. [2022-01-17 23:24:57,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3475 states, 3473 states have (on average 2.6593723006046646) internal successors, (9236), 3474 states have internal predecessors, (9236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:57,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3475 states to 3475 states and 9236 transitions. [2022-01-17 23:24:57,337 INFO L78 Accepts]: Start accepts. Automaton has 3475 states and 9236 transitions. Word has length 106 [2022-01-17 23:24:57,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:57,338 INFO L470 AbstractCegarLoop]: Abstraction has 3475 states and 9236 transitions. [2022-01-17 23:24:57,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:57,338 INFO L276 IsEmpty]: Start isEmpty. Operand 3475 states and 9236 transitions. [2022-01-17 23:24:57,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:24:57,341 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:57,341 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:57,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-01-17 23:24:57,341 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)] === [2022-01-17 23:24:57,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:57,342 INFO L85 PathProgramCache]: Analyzing trace with hash -784570332, now seen corresponding path program 72 times [2022-01-17 23:24:57,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:57,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851123195] [2022-01-17 23:24:57,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:57,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:57,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:57,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:57,877 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:57,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851123195] [2022-01-17 23:24:57,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851123195] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:57,877 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:57,877 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:24:57,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498986420] [2022-01-17 23:24:57,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:57,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:24:57,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:57,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:24:57,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:24:57,881 INFO L87 Difference]: Start difference. First operand 3475 states and 9236 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:00,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:00,123 INFO L93 Difference]: Finished difference Result 6349 states and 16078 transitions. [2022-01-17 23:25:00,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:25:00,123 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:25:00,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:00,132 INFO L225 Difference]: With dead ends: 6349 [2022-01-17 23:25:00,132 INFO L226 Difference]: Without dead ends: 6349 [2022-01-17 23:25:00,132 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=532, Invalid=1630, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:25:00,133 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 925 mSDsluCounter, 2675 mSDsCounter, 0 mSdLazyCounter, 1186 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 925 SdHoareTripleChecker+Valid, 2764 SdHoareTripleChecker+Invalid, 1245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:00,133 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [925 Valid, 2764 Invalid, 1245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1186 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:25:00,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6349 states. [2022-01-17 23:25:00,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6349 to 3477. [2022-01-17 23:25:00,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3477 states, 3475 states have (on average 2.6592805755395683) internal successors, (9241), 3476 states have internal predecessors, (9241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:00,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3477 states to 3477 states and 9241 transitions. [2022-01-17 23:25:00,192 INFO L78 Accepts]: Start accepts. Automaton has 3477 states and 9241 transitions. Word has length 106 [2022-01-17 23:25:00,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:00,192 INFO L470 AbstractCegarLoop]: Abstraction has 3477 states and 9241 transitions. [2022-01-17 23:25:00,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:00,193 INFO L276 IsEmpty]: Start isEmpty. Operand 3477 states and 9241 transitions. [2022-01-17 23:25:00,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:25:00,196 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:00,196 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:00,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-01-17 23:25:00,197 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)] === [2022-01-17 23:25:00,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:00,197 INFO L85 PathProgramCache]: Analyzing trace with hash -238063722, now seen corresponding path program 73 times [2022-01-17 23:25:00,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:00,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592995345] [2022-01-17 23:25:00,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:00,197 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:00,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:00,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:00,716 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:00,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592995345] [2022-01-17 23:25:00,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592995345] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:00,716 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:00,716 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:25:00,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062435534] [2022-01-17 23:25:00,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:00,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:25:00,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:00,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:25:00,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:25:00,717 INFO L87 Difference]: Start difference. First operand 3477 states and 9241 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:03,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:03,075 INFO L93 Difference]: Finished difference Result 6382 states and 16147 transitions. [2022-01-17 23:25:03,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:25:03,075 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:25:03,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:03,084 INFO L225 Difference]: With dead ends: 6382 [2022-01-17 23:25:03,084 INFO L226 Difference]: Without dead ends: 6382 [2022-01-17 23:25:03,087 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=533, Invalid=1629, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:25:03,088 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 862 mSDsluCounter, 3090 mSDsCounter, 0 mSdLazyCounter, 1428 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 862 SdHoareTripleChecker+Valid, 3164 SdHoareTripleChecker+Invalid, 1473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:03,088 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [862 Valid, 3164 Invalid, 1473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1428 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:25:03,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6382 states. [2022-01-17 23:25:03,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6382 to 3471. [2022-01-17 23:25:03,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3471 states, 3469 states have (on average 2.659556068031133) internal successors, (9226), 3470 states have internal predecessors, (9226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:03,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3471 states to 3471 states and 9226 transitions. [2022-01-17 23:25:03,148 INFO L78 Accepts]: Start accepts. Automaton has 3471 states and 9226 transitions. Word has length 106 [2022-01-17 23:25:03,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:03,148 INFO L470 AbstractCegarLoop]: Abstraction has 3471 states and 9226 transitions. [2022-01-17 23:25:03,148 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:03,148 INFO L276 IsEmpty]: Start isEmpty. Operand 3471 states and 9226 transitions. [2022-01-17 23:25:03,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:25:03,152 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:03,152 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:03,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-01-17 23:25:03,152 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)] === [2022-01-17 23:25:03,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:03,152 INFO L85 PathProgramCache]: Analyzing trace with hash 802394556, now seen corresponding path program 74 times [2022-01-17 23:25:03,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:03,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850073835] [2022-01-17 23:25:03,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:03,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:03,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:03,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:03,687 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:03,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850073835] [2022-01-17 23:25:03,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850073835] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:03,687 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:03,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:25:03,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809295445] [2022-01-17 23:25:03,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:03,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:25:03,688 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:03,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:25:03,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:25:03,688 INFO L87 Difference]: Start difference. First operand 3471 states and 9226 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:06,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:06,160 INFO L93 Difference]: Finished difference Result 6412 states and 16222 transitions. [2022-01-17 23:25:06,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-17 23:25:06,160 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:25:06,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:06,169 INFO L225 Difference]: With dead ends: 6412 [2022-01-17 23:25:06,169 INFO L226 Difference]: Without dead ends: 6412 [2022-01-17 23:25:06,170 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=564, Invalid=1692, Unknown=0, NotChecked=0, Total=2256 [2022-01-17 23:25:06,170 INFO L933 BasicCegarLoop]: 256 mSDtfsCounter, 862 mSDsluCounter, 2941 mSDsCounter, 0 mSdLazyCounter, 1388 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 862 SdHoareTripleChecker+Valid, 3027 SdHoareTripleChecker+Invalid, 1440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:06,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [862 Valid, 3027 Invalid, 1440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1388 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:25:06,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6412 states. [2022-01-17 23:25:06,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6412 to 3475. [2022-01-17 23:25:06,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3475 states, 3473 states have (on average 2.6593723006046646) internal successors, (9236), 3474 states have internal predecessors, (9236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:06,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3475 states to 3475 states and 9236 transitions. [2022-01-17 23:25:06,238 INFO L78 Accepts]: Start accepts. Automaton has 3475 states and 9236 transitions. Word has length 106 [2022-01-17 23:25:06,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:06,239 INFO L470 AbstractCegarLoop]: Abstraction has 3475 states and 9236 transitions. [2022-01-17 23:25:06,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:06,239 INFO L276 IsEmpty]: Start isEmpty. Operand 3475 states and 9236 transitions. [2022-01-17 23:25:06,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:25:06,243 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:06,243 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:06,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-01-17 23:25:06,243 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)] === [2022-01-17 23:25:06,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:06,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1027531476, now seen corresponding path program 75 times [2022-01-17 23:25:06,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:06,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628500422] [2022-01-17 23:25:06,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:06,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:06,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:06,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:06,753 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:06,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628500422] [2022-01-17 23:25:06,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628500422] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:06,753 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:06,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:25:06,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755721060] [2022-01-17 23:25:06,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:06,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:25:06,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:06,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:25:06,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:25:06,754 INFO L87 Difference]: Start difference. First operand 3475 states and 9236 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:09,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:09,263 INFO L93 Difference]: Finished difference Result 6613 states and 16621 transitions. [2022-01-17 23:25:09,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:25:09,263 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:25:09,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:09,270 INFO L225 Difference]: With dead ends: 6613 [2022-01-17 23:25:09,270 INFO L226 Difference]: Without dead ends: 6613 [2022-01-17 23:25:09,270 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=532, Invalid=1630, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:25:09,271 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 855 mSDsluCounter, 3512 mSDsCounter, 0 mSdLazyCounter, 1777 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 855 SdHoareTripleChecker+Valid, 3555 SdHoareTripleChecker+Invalid, 1821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:09,271 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [855 Valid, 3555 Invalid, 1821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1777 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-17 23:25:09,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6613 states. [2022-01-17 23:25:09,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6613 to 3477. [2022-01-17 23:25:09,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3477 states, 3475 states have (on average 2.6592805755395683) internal successors, (9241), 3476 states have internal predecessors, (9241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:09,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3477 states to 3477 states and 9241 transitions. [2022-01-17 23:25:09,323 INFO L78 Accepts]: Start accepts. Automaton has 3477 states and 9241 transitions. Word has length 106 [2022-01-17 23:25:09,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:09,323 INFO L470 AbstractCegarLoop]: Abstraction has 3477 states and 9241 transitions. [2022-01-17 23:25:09,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:09,323 INFO L276 IsEmpty]: Start isEmpty. Operand 3477 states and 9241 transitions. [2022-01-17 23:25:09,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:25:09,327 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:09,327 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:09,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-01-17 23:25:09,327 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)] === [2022-01-17 23:25:09,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:09,328 INFO L85 PathProgramCache]: Analyzing trace with hash -481024866, now seen corresponding path program 76 times [2022-01-17 23:25:09,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:09,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496688540] [2022-01-17 23:25:09,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:09,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:09,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:09,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:09,834 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:09,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496688540] [2022-01-17 23:25:09,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496688540] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:09,834 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:09,834 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:25:09,835 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326243586] [2022-01-17 23:25:09,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:09,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:25:09,835 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:09,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:25:09,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:25:09,835 INFO L87 Difference]: Start difference. First operand 3477 states and 9241 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:12,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:12,201 INFO L93 Difference]: Finished difference Result 6439 states and 16276 transitions. [2022-01-17 23:25:12,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:25:12,201 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:25:12,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:12,208 INFO L225 Difference]: With dead ends: 6439 [2022-01-17 23:25:12,208 INFO L226 Difference]: Without dead ends: 6439 [2022-01-17 23:25:12,209 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=533, Invalid=1629, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:25:12,209 INFO L933 BasicCegarLoop]: 266 mSDtfsCounter, 973 mSDsluCounter, 3020 mSDsCounter, 0 mSdLazyCounter, 1375 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 973 SdHoareTripleChecker+Valid, 3092 SdHoareTripleChecker+Invalid, 1437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:12,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [973 Valid, 3092 Invalid, 1437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1375 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:25:12,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6439 states. [2022-01-17 23:25:12,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6439 to 3463. [2022-01-17 23:25:12,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3463 states, 3461 states have (on average 2.6599248772031205) internal successors, (9206), 3462 states have internal predecessors, (9206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:12,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3463 states to 3463 states and 9206 transitions. [2022-01-17 23:25:12,260 INFO L78 Accepts]: Start accepts. Automaton has 3463 states and 9206 transitions. Word has length 106 [2022-01-17 23:25:12,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:12,260 INFO L470 AbstractCegarLoop]: Abstraction has 3463 states and 9206 transitions. [2022-01-17 23:25:12,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:12,260 INFO L276 IsEmpty]: Start isEmpty. Operand 3463 states and 9206 transitions. [2022-01-17 23:25:12,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:25:12,264 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:12,264 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:12,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-01-17 23:25:12,264 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)] === [2022-01-17 23:25:12,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:12,264 INFO L85 PathProgramCache]: Analyzing trace with hash -563236070, now seen corresponding path program 77 times [2022-01-17 23:25:12,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:12,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655248355] [2022-01-17 23:25:12,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:12,265 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:12,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:12,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:12,794 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:12,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655248355] [2022-01-17 23:25:12,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655248355] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:12,794 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:12,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:25:12,794 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990348] [2022-01-17 23:25:12,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:12,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:25:12,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:12,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:25:12,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:25:12,795 INFO L87 Difference]: Start difference. First operand 3463 states and 9206 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:15,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:15,412 INFO L93 Difference]: Finished difference Result 6149 states and 15665 transitions. [2022-01-17 23:25:15,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-17 23:25:15,412 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:25:15,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:15,419 INFO L225 Difference]: With dead ends: 6149 [2022-01-17 23:25:15,419 INFO L226 Difference]: Without dead ends: 6149 [2022-01-17 23:25:15,419 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 271 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=595, Invalid=1757, Unknown=0, NotChecked=0, Total=2352 [2022-01-17 23:25:15,419 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 950 mSDsluCounter, 2838 mSDsCounter, 0 mSdLazyCounter, 1391 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 950 SdHoareTripleChecker+Valid, 2938 SdHoareTripleChecker+Invalid, 1453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:15,419 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [950 Valid, 2938 Invalid, 1453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1391 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:25:15,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6149 states. [2022-01-17 23:25:15,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6149 to 3465. [2022-01-17 23:25:15,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3465 states, 3463 states have (on average 2.6598325151602658) internal successors, (9211), 3464 states have internal predecessors, (9211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:15,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3465 states to 3465 states and 9211 transitions. [2022-01-17 23:25:15,472 INFO L78 Accepts]: Start accepts. Automaton has 3465 states and 9211 transitions. Word has length 106 [2022-01-17 23:25:15,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:15,472 INFO L470 AbstractCegarLoop]: Abstraction has 3465 states and 9211 transitions. [2022-01-17 23:25:15,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:15,473 INFO L276 IsEmpty]: Start isEmpty. Operand 3465 states and 9211 transitions. [2022-01-17 23:25:15,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:25:15,476 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:15,476 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:15,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-01-17 23:25:15,476 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)] === [2022-01-17 23:25:15,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:15,477 INFO L85 PathProgramCache]: Analyzing trace with hash 465054414, now seen corresponding path program 78 times [2022-01-17 23:25:15,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:15,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039202698] [2022-01-17 23:25:15,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:15,478 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:15,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:15,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:15,994 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:15,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039202698] [2022-01-17 23:25:15,994 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039202698] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:15,994 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:15,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:25:15,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336358125] [2022-01-17 23:25:15,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:15,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:25:15,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:15,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:25:15,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:25:15,995 INFO L87 Difference]: Start difference. First operand 3465 states and 9211 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:18,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:18,501 INFO L93 Difference]: Finished difference Result 6389 states and 16148 transitions. [2022-01-17 23:25:18,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-17 23:25:18,501 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:25:18,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:18,509 INFO L225 Difference]: With dead ends: 6389 [2022-01-17 23:25:18,509 INFO L226 Difference]: Without dead ends: 6389 [2022-01-17 23:25:18,510 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=564, Invalid=1692, Unknown=0, NotChecked=0, Total=2256 [2022-01-17 23:25:18,510 INFO L933 BasicCegarLoop]: 256 mSDtfsCounter, 889 mSDsluCounter, 2927 mSDsCounter, 0 mSdLazyCounter, 1421 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 889 SdHoareTripleChecker+Valid, 3002 SdHoareTripleChecker+Invalid, 1483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:18,510 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [889 Valid, 3002 Invalid, 1483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1421 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:25:18,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6389 states. [2022-01-17 23:25:18,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6389 to 3469. [2022-01-17 23:25:18,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3469 states, 3467 states have (on average 2.6596481107585808) internal successors, (9221), 3468 states have internal predecessors, (9221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:18,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3469 states to 3469 states and 9221 transitions. [2022-01-17 23:25:18,567 INFO L78 Accepts]: Start accepts. Automaton has 3469 states and 9221 transitions. Word has length 106 [2022-01-17 23:25:18,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:18,567 INFO L470 AbstractCegarLoop]: Abstraction has 3469 states and 9221 transitions. [2022-01-17 23:25:18,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:18,568 INFO L276 IsEmpty]: Start isEmpty. Operand 3469 states and 9221 transitions. [2022-01-17 23:25:18,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:25:18,571 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:18,571 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:18,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-01-17 23:25:18,572 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)] === [2022-01-17 23:25:18,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:18,572 INFO L85 PathProgramCache]: Analyzing trace with hash -63010708, now seen corresponding path program 79 times [2022-01-17 23:25:18,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:18,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115052421] [2022-01-17 23:25:18,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:18,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:18,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:19,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:19,081 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:19,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115052421] [2022-01-17 23:25:19,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115052421] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:19,081 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:19,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:25:19,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055131249] [2022-01-17 23:25:19,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:19,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:25:19,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:19,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:25:19,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:25:19,082 INFO L87 Difference]: Start difference. First operand 3469 states and 9221 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:21,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:21,405 INFO L93 Difference]: Finished difference Result 6338 states and 16034 transitions. [2022-01-17 23:25:21,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:25:21,406 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:25:21,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:21,414 INFO L225 Difference]: With dead ends: 6338 [2022-01-17 23:25:21,414 INFO L226 Difference]: Without dead ends: 6338 [2022-01-17 23:25:21,414 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=532, Invalid=1630, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:25:21,415 INFO L933 BasicCegarLoop]: 256 mSDtfsCounter, 956 mSDsluCounter, 2967 mSDsCounter, 0 mSdLazyCounter, 1376 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 956 SdHoareTripleChecker+Valid, 3037 SdHoareTripleChecker+Invalid, 1430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:21,415 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [956 Valid, 3037 Invalid, 1430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1376 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:25:21,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6338 states. [2022-01-17 23:25:21,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6338 to 3471. [2022-01-17 23:25:21,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3471 states, 3469 states have (on average 2.659556068031133) internal successors, (9226), 3470 states have internal predecessors, (9226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:21,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3471 states to 3471 states and 9226 transitions. [2022-01-17 23:25:21,471 INFO L78 Accepts]: Start accepts. Automaton has 3471 states and 9226 transitions. Word has length 106 [2022-01-17 23:25:21,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:21,471 INFO L470 AbstractCegarLoop]: Abstraction has 3471 states and 9226 transitions. [2022-01-17 23:25:21,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:21,471 INFO L276 IsEmpty]: Start isEmpty. Operand 3471 states and 9226 transitions. [2022-01-17 23:25:21,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:25:21,475 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:21,475 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:21,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-01-17 23:25:21,475 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)] === [2022-01-17 23:25:21,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:21,475 INFO L85 PathProgramCache]: Analyzing trace with hash 483495902, now seen corresponding path program 80 times [2022-01-17 23:25:21,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:21,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793908043] [2022-01-17 23:25:21,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:21,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:21,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:21,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:21,982 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:21,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793908043] [2022-01-17 23:25:21,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793908043] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:21,983 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:21,983 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:25:21,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918407095] [2022-01-17 23:25:21,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:21,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:25:21,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:21,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:25:21,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:25:21,984 INFO L87 Difference]: Start difference. First operand 3471 states and 9226 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:24,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:24,283 INFO L93 Difference]: Finished difference Result 6164 states and 15689 transitions. [2022-01-17 23:25:24,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:25:24,284 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:25:24,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:24,292 INFO L225 Difference]: With dead ends: 6164 [2022-01-17 23:25:24,292 INFO L226 Difference]: Without dead ends: 6164 [2022-01-17 23:25:24,292 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=533, Invalid=1629, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:25:24,293 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 984 mSDsluCounter, 2820 mSDsCounter, 0 mSdLazyCounter, 1311 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 984 SdHoareTripleChecker+Valid, 2897 SdHoareTripleChecker+Invalid, 1369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:24,293 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [984 Valid, 2897 Invalid, 1369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1311 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:25:24,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6164 states. [2022-01-17 23:25:24,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6164 to 3463. [2022-01-17 23:25:24,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3463 states, 3461 states have (on average 2.6599248772031205) internal successors, (9206), 3462 states have internal predecessors, (9206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:24,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3463 states to 3463 states and 9206 transitions. [2022-01-17 23:25:24,346 INFO L78 Accepts]: Start accepts. Automaton has 3463 states and 9206 transitions. Word has length 106 [2022-01-17 23:25:24,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:24,347 INFO L470 AbstractCegarLoop]: Abstraction has 3463 states and 9206 transitions. [2022-01-17 23:25:24,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:24,347 INFO L276 IsEmpty]: Start isEmpty. Operand 3463 states and 9206 transitions. [2022-01-17 23:25:24,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:25:24,350 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:24,350 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:24,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-01-17 23:25:24,351 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)] === [2022-01-17 23:25:24,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:24,351 INFO L85 PathProgramCache]: Analyzing trace with hash -124387154, now seen corresponding path program 81 times [2022-01-17 23:25:24,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:24,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78102919] [2022-01-17 23:25:24,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:24,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:24,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:24,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:24,636 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:24,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78102919] [2022-01-17 23:25:24,636 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78102919] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:24,636 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:24,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:25:24,637 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646045304] [2022-01-17 23:25:24,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:24,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:25:24,637 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:24,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:25:24,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:25:24,637 INFO L87 Difference]: Start difference. First operand 3463 states and 9206 transitions. Second operand has 19 states, 19 states have (on average 5.578947368421052) internal successors, (106), 19 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:25,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:25,403 INFO L93 Difference]: Finished difference Result 3770 states and 9808 transitions. [2022-01-17 23:25:25,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-17 23:25:25,403 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.578947368421052) internal successors, (106), 19 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:25:25,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:25,407 INFO L225 Difference]: With dead ends: 3770 [2022-01-17 23:25:25,408 INFO L226 Difference]: Without dead ends: 3770 [2022-01-17 23:25:25,408 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=280, Invalid=910, Unknown=0, NotChecked=0, Total=1190 [2022-01-17 23:25:25,408 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 576 mSDsluCounter, 1718 mSDsCounter, 0 mSdLazyCounter, 647 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 576 SdHoareTripleChecker+Valid, 1809 SdHoareTripleChecker+Invalid, 682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:25,408 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [576 Valid, 1809 Invalid, 682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 647 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:25:25,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3770 states. [2022-01-17 23:25:25,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3770 to 3288. [2022-01-17 23:25:25,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3288 states, 3286 states have (on average 2.675289105295192) internal successors, (8791), 3287 states have internal predecessors, (8791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:25,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3288 states to 3288 states and 8791 transitions. [2022-01-17 23:25:25,448 INFO L78 Accepts]: Start accepts. Automaton has 3288 states and 8791 transitions. Word has length 106 [2022-01-17 23:25:25,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:25,448 INFO L470 AbstractCegarLoop]: Abstraction has 3288 states and 8791 transitions. [2022-01-17 23:25:25,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.578947368421052) internal successors, (106), 19 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:25,448 INFO L276 IsEmpty]: Start isEmpty. Operand 3288 states and 8791 transitions. [2022-01-17 23:25:25,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:25:25,452 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:25,452 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:25,452 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-01-17 23:25:25,452 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)] === [2022-01-17 23:25:25,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:25,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1048093526, now seen corresponding path program 82 times [2022-01-17 23:25:25,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:25,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623925427] [2022-01-17 23:25:25,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:25,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:25,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:26,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:26,026 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:26,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623925427] [2022-01-17 23:25:26,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623925427] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:26,026 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:26,026 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:25:26,026 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828645621] [2022-01-17 23:25:26,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:26,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:25:26,027 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:26,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:25:26,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=524, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:25:26,027 INFO L87 Difference]: Start difference. First operand 3288 states and 8791 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:30,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:30,866 INFO L93 Difference]: Finished difference Result 8869 states and 22905 transitions. [2022-01-17 23:25:30,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-17 23:25:30,866 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:25:30,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:30,876 INFO L225 Difference]: With dead ends: 8869 [2022-01-17 23:25:30,876 INFO L226 Difference]: Without dead ends: 8869 [2022-01-17 23:25:30,876 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=944, Invalid=2248, Unknown=0, NotChecked=0, Total=3192 [2022-01-17 23:25:30,876 INFO L933 BasicCegarLoop]: 355 mSDtfsCounter, 1214 mSDsluCounter, 3211 mSDsCounter, 0 mSdLazyCounter, 1522 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1214 SdHoareTripleChecker+Valid, 3455 SdHoareTripleChecker+Invalid, 1625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:30,877 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1214 Valid, 3455 Invalid, 1625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1522 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:25:30,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8869 states. [2022-01-17 23:25:30,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8869 to 3418. [2022-01-17 23:25:30,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3418 states, 3416 states have (on average 2.6870608899297426) internal successors, (9179), 3417 states have internal predecessors, (9179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:30,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3418 states to 3418 states and 9179 transitions. [2022-01-17 23:25:30,933 INFO L78 Accepts]: Start accepts. Automaton has 3418 states and 9179 transitions. Word has length 106 [2022-01-17 23:25:30,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:30,933 INFO L470 AbstractCegarLoop]: Abstraction has 3418 states and 9179 transitions. [2022-01-17 23:25:30,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:30,933 INFO L276 IsEmpty]: Start isEmpty. Operand 3418 states and 9179 transitions. [2022-01-17 23:25:30,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:25:30,936 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:30,937 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:30,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-01-17 23:25:30,937 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)] === [2022-01-17 23:25:30,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:30,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1414204416, now seen corresponding path program 83 times [2022-01-17 23:25:30,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:30,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237701113] [2022-01-17 23:25:30,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:30,937 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:30,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:31,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:31,436 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:31,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237701113] [2022-01-17 23:25:31,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237701113] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:31,436 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:31,436 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:25:31,436 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699218993] [2022-01-17 23:25:31,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:31,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:25:31,437 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:31,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:25:31,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:25:31,437 INFO L87 Difference]: Start difference. First operand 3418 states and 9179 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:34,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:34,124 INFO L93 Difference]: Finished difference Result 8085 states and 21085 transitions. [2022-01-17 23:25:34,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-17 23:25:34,124 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:25:34,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:34,133 INFO L225 Difference]: With dead ends: 8085 [2022-01-17 23:25:34,133 INFO L226 Difference]: Without dead ends: 8085 [2022-01-17 23:25:34,133 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=541, Invalid=1439, Unknown=0, NotChecked=0, Total=1980 [2022-01-17 23:25:34,134 INFO L933 BasicCegarLoop]: 310 mSDtfsCounter, 1102 mSDsluCounter, 3023 mSDsCounter, 0 mSdLazyCounter, 1259 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1102 SdHoareTripleChecker+Valid, 3215 SdHoareTripleChecker+Invalid, 1324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:34,134 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1102 Valid, 3215 Invalid, 1324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1259 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:25:34,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8085 states. [2022-01-17 23:25:34,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8085 to 3404. [2022-01-17 23:25:34,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3404 states, 3402 states have (on average 2.6857730746619635) internal successors, (9137), 3403 states have internal predecessors, (9137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:34,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3404 states to 3404 states and 9137 transitions. [2022-01-17 23:25:34,191 INFO L78 Accepts]: Start accepts. Automaton has 3404 states and 9137 transitions. Word has length 106 [2022-01-17 23:25:34,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:34,192 INFO L470 AbstractCegarLoop]: Abstraction has 3404 states and 9137 transitions. [2022-01-17 23:25:34,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:34,192 INFO L276 IsEmpty]: Start isEmpty. Operand 3404 states and 9137 transitions. [2022-01-17 23:25:34,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:25:34,196 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:34,196 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:34,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-01-17 23:25:34,196 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)] === [2022-01-17 23:25:34,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:34,196 INFO L85 PathProgramCache]: Analyzing trace with hash 2026636874, now seen corresponding path program 84 times [2022-01-17 23:25:34,196 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:34,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882844766] [2022-01-17 23:25:34,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:34,197 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:34,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:34,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:34,722 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:34,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882844766] [2022-01-17 23:25:34,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882844766] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:34,723 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:34,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:25:34,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889967013] [2022-01-17 23:25:34,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:34,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:25:34,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:34,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:25:34,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:25:34,724 INFO L87 Difference]: Start difference. First operand 3404 states and 9137 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:38,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:38,884 INFO L93 Difference]: Finished difference Result 8979 states and 23062 transitions. [2022-01-17 23:25:38,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-17 23:25:38,884 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:25:38,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:38,895 INFO L225 Difference]: With dead ends: 8979 [2022-01-17 23:25:38,896 INFO L226 Difference]: Without dead ends: 8979 [2022-01-17 23:25:38,896 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 388 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=922, Invalid=2384, Unknown=0, NotChecked=0, Total=3306 [2022-01-17 23:25:38,896 INFO L933 BasicCegarLoop]: 356 mSDtfsCounter, 1292 mSDsluCounter, 3688 mSDsCounter, 0 mSdLazyCounter, 1739 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1292 SdHoareTripleChecker+Valid, 3913 SdHoareTripleChecker+Invalid, 1848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 1739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:38,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1292 Valid, 3913 Invalid, 1848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 1739 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-17 23:25:38,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8979 states. [2022-01-17 23:25:38,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8979 to 3390. [2022-01-17 23:25:38,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3390 states, 3388 states have (on average 2.684474616292798) internal successors, (9095), 3389 states have internal predecessors, (9095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:38,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3390 states to 3390 states and 9095 transitions. [2022-01-17 23:25:38,963 INFO L78 Accepts]: Start accepts. Automaton has 3390 states and 9095 transitions. Word has length 106 [2022-01-17 23:25:38,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:38,963 INFO L470 AbstractCegarLoop]: Abstraction has 3390 states and 9095 transitions. [2022-01-17 23:25:38,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:38,963 INFO L276 IsEmpty]: Start isEmpty. Operand 3390 states and 9095 transitions. [2022-01-17 23:25:38,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:25:38,966 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:38,967 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:38,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-01-17 23:25:38,967 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)] === [2022-01-17 23:25:38,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:38,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1636984098, now seen corresponding path program 85 times [2022-01-17 23:25:38,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:38,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913771987] [2022-01-17 23:25:38,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:38,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:39,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:39,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:39,471 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:39,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913771987] [2022-01-17 23:25:39,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913771987] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:39,472 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:39,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:25:39,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229273708] [2022-01-17 23:25:39,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:39,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:25:39,472 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:39,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:25:39,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:25:39,473 INFO L87 Difference]: Start difference. First operand 3390 states and 9095 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:41,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:41,932 INFO L93 Difference]: Finished difference Result 8264 states and 21457 transitions. [2022-01-17 23:25:41,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-17 23:25:41,932 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:25:41,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:41,941 INFO L225 Difference]: With dead ends: 8264 [2022-01-17 23:25:41,941 INFO L226 Difference]: Without dead ends: 8264 [2022-01-17 23:25:41,941 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=544, Invalid=1526, Unknown=0, NotChecked=0, Total=2070 [2022-01-17 23:25:41,942 INFO L933 BasicCegarLoop]: 296 mSDtfsCounter, 1039 mSDsluCounter, 3172 mSDsCounter, 0 mSdLazyCounter, 1316 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1039 SdHoareTripleChecker+Valid, 3337 SdHoareTripleChecker+Invalid, 1359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:41,942 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1039 Valid, 3337 Invalid, 1359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1316 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:25:41,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8264 states. [2022-01-17 23:25:41,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8264 to 3362. [2022-01-17 23:25:41,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3362 states, 3360 states have (on average 2.6818452380952382) internal successors, (9011), 3361 states have internal predecessors, (9011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:41,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3362 states to 3362 states and 9011 transitions. [2022-01-17 23:25:41,996 INFO L78 Accepts]: Start accepts. Automaton has 3362 states and 9011 transitions. Word has length 106 [2022-01-17 23:25:41,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:41,997 INFO L470 AbstractCegarLoop]: Abstraction has 3362 states and 9011 transitions. [2022-01-17 23:25:41,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:41,997 INFO L276 IsEmpty]: Start isEmpty. Operand 3362 states and 9011 transitions. [2022-01-17 23:25:42,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:25:42,000 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:42,000 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:42,000 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-01-17 23:25:42,000 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)] === [2022-01-17 23:25:42,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:42,001 INFO L85 PathProgramCache]: Analyzing trace with hash 810364228, now seen corresponding path program 86 times [2022-01-17 23:25:42,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:42,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016307601] [2022-01-17 23:25:42,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:42,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:42,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:42,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:42,571 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:42,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016307601] [2022-01-17 23:25:42,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016307601] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:42,571 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:42,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:25:42,571 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330393876] [2022-01-17 23:25:42,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:42,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:25:42,571 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:42,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:25:42,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:25:42,572 INFO L87 Difference]: Start difference. First operand 3362 states and 9011 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:46,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:46,535 INFO L93 Difference]: Finished difference Result 9048 states and 23221 transitions. [2022-01-17 23:25:46,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-17 23:25:46,535 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:25:46,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:46,546 INFO L225 Difference]: With dead ends: 9048 [2022-01-17 23:25:46,546 INFO L226 Difference]: Without dead ends: 9048 [2022-01-17 23:25:46,546 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 372 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=826, Invalid=2254, Unknown=0, NotChecked=0, Total=3080 [2022-01-17 23:25:46,547 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 1189 mSDsluCounter, 3553 mSDsCounter, 0 mSdLazyCounter, 1694 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1189 SdHoareTripleChecker+Valid, 3733 SdHoareTripleChecker+Invalid, 1797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:46,547 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1189 Valid, 3733 Invalid, 1797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1694 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-17 23:25:46,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9048 states. [2022-01-17 23:25:46,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9048 to 3348. [2022-01-17 23:25:46,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3348 states, 3346 states have (on average 2.680514046622833) internal successors, (8969), 3347 states have internal predecessors, (8969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:46,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3348 states to 3348 states and 8969 transitions. [2022-01-17 23:25:46,608 INFO L78 Accepts]: Start accepts. Automaton has 3348 states and 8969 transitions. Word has length 106 [2022-01-17 23:25:46,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:46,608 INFO L470 AbstractCegarLoop]: Abstraction has 3348 states and 8969 transitions. [2022-01-17 23:25:46,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:46,608 INFO L276 IsEmpty]: Start isEmpty. Operand 3348 states and 8969 transitions. [2022-01-17 23:25:46,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:25:46,612 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:46,612 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:46,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-01-17 23:25:46,612 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)] === [2022-01-17 23:25:46,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:46,612 INFO L85 PathProgramCache]: Analyzing trace with hash 11984390, now seen corresponding path program 87 times [2022-01-17 23:25:46,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:46,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319427850] [2022-01-17 23:25:46,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:46,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:46,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:47,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:47,106 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:47,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319427850] [2022-01-17 23:25:47,106 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319427850] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:47,106 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:47,106 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:25:47,106 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808882954] [2022-01-17 23:25:47,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:47,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:25:47,106 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:47,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:25:47,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:25:47,107 INFO L87 Difference]: Start difference. First operand 3348 states and 8969 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:49,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:49,779 INFO L93 Difference]: Finished difference Result 7656 states and 19713 transitions. [2022-01-17 23:25:49,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-17 23:25:49,780 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:25:49,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:49,790 INFO L225 Difference]: With dead ends: 7656 [2022-01-17 23:25:49,790 INFO L226 Difference]: Without dead ends: 7656 [2022-01-17 23:25:49,790 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=640, Invalid=1810, Unknown=0, NotChecked=0, Total=2450 [2022-01-17 23:25:49,790 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 1264 mSDsluCounter, 2926 mSDsCounter, 0 mSdLazyCounter, 1434 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1264 SdHoareTripleChecker+Valid, 3055 SdHoareTripleChecker+Invalid, 1540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 1434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:49,791 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1264 Valid, 3055 Invalid, 1540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 1434 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:25:49,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7656 states. [2022-01-17 23:25:49,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7656 to 3350. [2022-01-17 23:25:49,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3350 states, 3348 states have (on average 2.6804062126642774) internal successors, (8974), 3349 states have internal predecessors, (8974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:49,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3350 states to 3350 states and 8974 transitions. [2022-01-17 23:25:49,852 INFO L78 Accepts]: Start accepts. Automaton has 3350 states and 8974 transitions. Word has length 106 [2022-01-17 23:25:49,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:49,852 INFO L470 AbstractCegarLoop]: Abstraction has 3350 states and 8974 transitions. [2022-01-17 23:25:49,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:49,852 INFO L276 IsEmpty]: Start isEmpty. Operand 3350 states and 8974 transitions. [2022-01-17 23:25:49,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:25:49,855 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:49,856 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:49,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-01-17 23:25:49,856 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)] === [2022-01-17 23:25:49,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:49,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1742668820, now seen corresponding path program 88 times [2022-01-17 23:25:49,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:49,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706580772] [2022-01-17 23:25:49,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:49,856 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:49,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:50,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:50,378 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:50,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706580772] [2022-01-17 23:25:50,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706580772] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:50,379 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:50,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:25:50,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541517335] [2022-01-17 23:25:50,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:50,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:25:50,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:50,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:25:50,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=524, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:25:50,380 INFO L87 Difference]: Start difference. First operand 3350 states and 8974 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:52,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:52,786 INFO L93 Difference]: Finished difference Result 10199 states and 26389 transitions. [2022-01-17 23:25:52,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-17 23:25:52,786 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:25:52,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:52,800 INFO L225 Difference]: With dead ends: 10199 [2022-01-17 23:25:52,801 INFO L226 Difference]: Without dead ends: 10199 [2022-01-17 23:25:52,801 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=532, Invalid=1360, Unknown=0, NotChecked=0, Total=1892 [2022-01-17 23:25:52,801 INFO L933 BasicCegarLoop]: 321 mSDtfsCounter, 1152 mSDsluCounter, 2844 mSDsCounter, 0 mSdLazyCounter, 1084 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1152 SdHoareTripleChecker+Valid, 3034 SdHoareTripleChecker+Invalid, 1139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1084 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:52,801 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1152 Valid, 3034 Invalid, 1139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1084 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:25:52,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10199 states. [2022-01-17 23:25:52,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10199 to 3574. [2022-01-17 23:25:52,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3574 states, 3572 states have (on average 2.700447928331467) internal successors, (9646), 3573 states have internal predecessors, (9646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:52,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3574 states to 3574 states and 9646 transitions. [2022-01-17 23:25:52,888 INFO L78 Accepts]: Start accepts. Automaton has 3574 states and 9646 transitions. Word has length 106 [2022-01-17 23:25:52,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:52,889 INFO L470 AbstractCegarLoop]: Abstraction has 3574 states and 9646 transitions. [2022-01-17 23:25:52,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:52,889 INFO L276 IsEmpty]: Start isEmpty. Operand 3574 states and 9646 transitions. [2022-01-17 23:25:52,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:25:52,892 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:52,893 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:52,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-01-17 23:25:52,893 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)] === [2022-01-17 23:25:52,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:52,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1285828906, now seen corresponding path program 89 times [2022-01-17 23:25:52,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:52,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177674844] [2022-01-17 23:25:52,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:52,894 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:52,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:53,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:53,461 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:53,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177674844] [2022-01-17 23:25:53,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177674844] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:53,461 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:53,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:25:53,461 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912150578] [2022-01-17 23:25:53,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:53,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:25:53,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:53,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:25:53,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:25:53,462 INFO L87 Difference]: Start difference. First operand 3574 states and 9646 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:57,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:57,926 INFO L93 Difference]: Finished difference Result 10320 states and 26532 transitions. [2022-01-17 23:25:57,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-17 23:25:57,926 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:25:57,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:57,938 INFO L225 Difference]: With dead ends: 10320 [2022-01-17 23:25:57,938 INFO L226 Difference]: Without dead ends: 10320 [2022-01-17 23:25:57,939 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 342 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=887, Invalid=2193, Unknown=0, NotChecked=0, Total=3080 [2022-01-17 23:25:57,939 INFO L933 BasicCegarLoop]: 353 mSDtfsCounter, 1300 mSDsluCounter, 3944 mSDsCounter, 0 mSdLazyCounter, 1816 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1300 SdHoareTripleChecker+Valid, 4139 SdHoareTripleChecker+Invalid, 1908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1816 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:57,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1300 Valid, 4139 Invalid, 1908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 1816 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-17 23:25:57,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10320 states. [2022-01-17 23:25:58,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10320 to 3420. [2022-01-17 23:25:58,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3420 states, 3418 states have (on average 2.6869514335868927) internal successors, (9184), 3419 states have internal predecessors, (9184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:58,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3420 states to 3420 states and 9184 transitions. [2022-01-17 23:25:58,013 INFO L78 Accepts]: Start accepts. Automaton has 3420 states and 9184 transitions. Word has length 106 [2022-01-17 23:25:58,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:58,013 INFO L470 AbstractCegarLoop]: Abstraction has 3420 states and 9184 transitions. [2022-01-17 23:25:58,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:58,013 INFO L276 IsEmpty]: Start isEmpty. Operand 3420 states and 9184 transitions. [2022-01-17 23:25:58,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:25:58,017 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:58,017 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:58,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-01-17 23:25:58,017 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)] === [2022-01-17 23:25:58,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:58,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1176935658, now seen corresponding path program 90 times [2022-01-17 23:25:58,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:58,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058040796] [2022-01-17 23:25:58,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:58,018 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:58,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:58,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:58,553 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:58,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058040796] [2022-01-17 23:25:58,553 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058040796] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:58,553 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:58,553 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:25:58,553 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658393205] [2022-01-17 23:25:58,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:58,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:25:58,553 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:58,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:25:58,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:25:58,554 INFO L87 Difference]: Start difference. First operand 3420 states and 9184 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:02,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:02,478 INFO L93 Difference]: Finished difference Result 10710 states and 27396 transitions. [2022-01-17 23:26:02,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-17 23:26:02,478 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:26:02,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:02,489 INFO L225 Difference]: With dead ends: 10710 [2022-01-17 23:26:02,489 INFO L226 Difference]: Without dead ends: 10710 [2022-01-17 23:26:02,489 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 356 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=870, Invalid=2210, Unknown=0, NotChecked=0, Total=3080 [2022-01-17 23:26:02,490 INFO L933 BasicCegarLoop]: 352 mSDtfsCounter, 1296 mSDsluCounter, 3310 mSDsCounter, 0 mSdLazyCounter, 1488 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1296 SdHoareTripleChecker+Valid, 3505 SdHoareTripleChecker+Invalid, 1569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:02,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1296 Valid, 3505 Invalid, 1569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1488 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:26:02,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10710 states. [2022-01-17 23:26:02,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10710 to 3406. [2022-01-17 23:26:02,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3406 states, 3404 states have (on average 2.6856639247943597) internal successors, (9142), 3405 states have internal predecessors, (9142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:02,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3406 states to 3406 states and 9142 transitions. [2022-01-17 23:26:02,552 INFO L78 Accepts]: Start accepts. Automaton has 3406 states and 9142 transitions. Word has length 106 [2022-01-17 23:26:02,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:02,552 INFO L470 AbstractCegarLoop]: Abstraction has 3406 states and 9142 transitions. [2022-01-17 23:26:02,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:02,552 INFO L276 IsEmpty]: Start isEmpty. Operand 3406 states and 9142 transitions. [2022-01-17 23:26:02,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:26:02,555 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:02,555 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:02,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-01-17 23:26:02,556 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)] === [2022-01-17 23:26:02,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:02,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1566588434, now seen corresponding path program 91 times [2022-01-17 23:26:02,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:02,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426267503] [2022-01-17 23:26:02,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:02,556 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:02,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:03,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:03,079 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:03,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426267503] [2022-01-17 23:26:03,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426267503] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:03,080 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:03,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:26:03,080 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857325221] [2022-01-17 23:26:03,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:03,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:26:03,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:03,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:26:03,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:26:03,081 INFO L87 Difference]: Start difference. First operand 3406 states and 9142 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:06,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:06,833 INFO L93 Difference]: Finished difference Result 10739 states and 27464 transitions. [2022-01-17 23:26:06,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-17 23:26:06,834 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:26:06,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:06,864 INFO L225 Difference]: With dead ends: 10739 [2022-01-17 23:26:06,864 INFO L226 Difference]: Without dead ends: 10739 [2022-01-17 23:26:06,864 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 350 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=822, Invalid=2148, Unknown=0, NotChecked=0, Total=2970 [2022-01-17 23:26:06,864 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 1224 mSDsluCounter, 3739 mSDsCounter, 0 mSdLazyCounter, 1773 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1224 SdHoareTripleChecker+Valid, 3899 SdHoareTripleChecker+Invalid, 1846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:06,864 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1224 Valid, 3899 Invalid, 1846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 1773 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-17 23:26:06,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10739 states. [2022-01-17 23:26:06,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10739 to 3378. [2022-01-17 23:26:06,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3378 states, 3376 states have (on average 2.683056872037915) internal successors, (9058), 3377 states have internal predecessors, (9058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:06,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3378 states to 3378 states and 9058 transitions. [2022-01-17 23:26:06,929 INFO L78 Accepts]: Start accepts. Automaton has 3378 states and 9058 transitions. Word has length 106 [2022-01-17 23:26:06,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:06,930 INFO L470 AbstractCegarLoop]: Abstraction has 3378 states and 9058 transitions. [2022-01-17 23:26:06,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:06,930 INFO L276 IsEmpty]: Start isEmpty. Operand 3378 states and 9058 transitions. [2022-01-17 23:26:06,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:26:06,933 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:06,933 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:06,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-01-17 23:26:06,933 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)] === [2022-01-17 23:26:06,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:06,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1901758992, now seen corresponding path program 92 times [2022-01-17 23:26:06,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:06,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820984719] [2022-01-17 23:26:06,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:06,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:06,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:07,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:07,430 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:07,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820984719] [2022-01-17 23:26:07,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820984719] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:07,431 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:07,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:26:07,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268918625] [2022-01-17 23:26:07,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:07,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:26:07,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:07,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:26:07,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:26:07,432 INFO L87 Difference]: Start difference. First operand 3378 states and 9058 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:09,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:09,810 INFO L93 Difference]: Finished difference Result 9557 states and 24689 transitions. [2022-01-17 23:26:09,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-17 23:26:09,811 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:26:09,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:09,821 INFO L225 Difference]: With dead ends: 9557 [2022-01-17 23:26:09,821 INFO L226 Difference]: Without dead ends: 9557 [2022-01-17 23:26:09,821 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=529, Invalid=1541, Unknown=0, NotChecked=0, Total=2070 [2022-01-17 23:26:09,821 INFO L933 BasicCegarLoop]: 298 mSDtfsCounter, 959 mSDsluCounter, 2877 mSDsCounter, 0 mSdLazyCounter, 1231 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 959 SdHoareTripleChecker+Valid, 3023 SdHoareTripleChecker+Invalid, 1281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:09,821 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [959 Valid, 3023 Invalid, 1281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1231 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:26:09,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9557 states. [2022-01-17 23:26:09,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9557 to 3364. [2022-01-17 23:26:09,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3364 states, 3362 states have (on average 2.6817370612730516) internal successors, (9016), 3363 states have internal predecessors, (9016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:09,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3364 states to 3364 states and 9016 transitions. [2022-01-17 23:26:09,883 INFO L78 Accepts]: Start accepts. Automaton has 3364 states and 9016 transitions. Word has length 106 [2022-01-17 23:26:09,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:09,883 INFO L470 AbstractCegarLoop]: Abstraction has 3364 states and 9016 transitions. [2022-01-17 23:26:09,883 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:09,883 INFO L276 IsEmpty]: Start isEmpty. Operand 3364 states and 9016 transitions. [2022-01-17 23:26:09,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:26:09,886 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:09,886 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:09,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-01-17 23:26:09,887 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)] === [2022-01-17 23:26:09,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:09,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1024845000, now seen corresponding path program 93 times [2022-01-17 23:26:09,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:09,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217275680] [2022-01-17 23:26:09,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:09,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:09,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:10,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:10,449 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:10,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217275680] [2022-01-17 23:26:10,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217275680] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:10,450 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:10,450 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:26:10,450 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746627711] [2022-01-17 23:26:10,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:10,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:26:10,450 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:10,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:26:10,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=524, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:26:10,451 INFO L87 Difference]: Start difference. First operand 3364 states and 9016 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:14,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:14,559 INFO L93 Difference]: Finished difference Result 10252 states and 26312 transitions. [2022-01-17 23:26:14,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-17 23:26:14,560 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:26:14,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:14,572 INFO L225 Difference]: With dead ends: 10252 [2022-01-17 23:26:14,572 INFO L226 Difference]: Without dead ends: 10252 [2022-01-17 23:26:14,573 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=833, Invalid=1923, Unknown=0, NotChecked=0, Total=2756 [2022-01-17 23:26:14,573 INFO L933 BasicCegarLoop]: 342 mSDtfsCounter, 1312 mSDsluCounter, 3170 mSDsCounter, 0 mSdLazyCounter, 1389 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1312 SdHoareTripleChecker+Valid, 3368 SdHoareTripleChecker+Invalid, 1471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:14,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1312 Valid, 3368 Invalid, 1471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1389 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:26:14,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10252 states. [2022-01-17 23:26:14,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10252 to 3448. [2022-01-17 23:26:14,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3448 states, 3446 states have (on average 2.689495066744051) internal successors, (9268), 3447 states have internal predecessors, (9268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:14,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3448 states to 3448 states and 9268 transitions. [2022-01-17 23:26:14,644 INFO L78 Accepts]: Start accepts. Automaton has 3448 states and 9268 transitions. Word has length 106 [2022-01-17 23:26:14,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:14,644 INFO L470 AbstractCegarLoop]: Abstraction has 3448 states and 9268 transitions. [2022-01-17 23:26:14,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:14,644 INFO L276 IsEmpty]: Start isEmpty. Operand 3448 states and 9268 transitions. [2022-01-17 23:26:14,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:26:14,648 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:14,648 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:14,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-01-17 23:26:14,648 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)] === [2022-01-17 23:26:14,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:14,648 INFO L85 PathProgramCache]: Analyzing trace with hash -812833762, now seen corresponding path program 94 times [2022-01-17 23:26:14,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:14,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701912557] [2022-01-17 23:26:14,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:14,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:14,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:15,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:15,188 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:15,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701912557] [2022-01-17 23:26:15,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701912557] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:15,188 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:15,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:26:15,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600050825] [2022-01-17 23:26:15,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:15,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:26:15,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:15,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:26:15,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:26:15,189 INFO L87 Difference]: Start difference. First operand 3448 states and 9268 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:19,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:19,305 INFO L93 Difference]: Finished difference Result 9976 states and 25615 transitions. [2022-01-17 23:26:19,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-17 23:26:19,306 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:26:19,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:19,317 INFO L225 Difference]: With dead ends: 9976 [2022-01-17 23:26:19,317 INFO L226 Difference]: Without dead ends: 9976 [2022-01-17 23:26:19,318 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 309 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=833, Invalid=2029, Unknown=0, NotChecked=0, Total=2862 [2022-01-17 23:26:19,318 INFO L933 BasicCegarLoop]: 342 mSDtfsCounter, 1301 mSDsluCounter, 3355 mSDsCounter, 0 mSdLazyCounter, 1507 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1301 SdHoareTripleChecker+Valid, 3542 SdHoareTripleChecker+Invalid, 1586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 1507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:19,318 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1301 Valid, 3542 Invalid, 1586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 1507 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:26:19,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9976 states. [2022-01-17 23:26:19,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9976 to 3434. [2022-01-17 23:26:19,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3434 states, 3432 states have (on average 2.688228438228438) internal successors, (9226), 3433 states have internal predecessors, (9226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:19,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3434 states to 3434 states and 9226 transitions. [2022-01-17 23:26:19,386 INFO L78 Accepts]: Start accepts. Automaton has 3434 states and 9226 transitions. Word has length 106 [2022-01-17 23:26:19,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:19,386 INFO L470 AbstractCegarLoop]: Abstraction has 3434 states and 9226 transitions. [2022-01-17 23:26:19,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:19,387 INFO L276 IsEmpty]: Start isEmpty. Operand 3434 states and 9226 transitions. [2022-01-17 23:26:19,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:26:19,390 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:19,390 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:19,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-01-17 23:26:19,391 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)] === [2022-01-17 23:26:19,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:19,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1666959768, now seen corresponding path program 95 times [2022-01-17 23:26:19,391 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:19,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281441565] [2022-01-17 23:26:19,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:19,391 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:19,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:19,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:19,911 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:19,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281441565] [2022-01-17 23:26:19,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281441565] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:19,911 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:19,911 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:26:19,912 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839477548] [2022-01-17 23:26:19,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:19,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:26:19,912 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:19,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:26:19,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:26:19,912 INFO L87 Difference]: Start difference. First operand 3434 states and 9226 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:23,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:23,670 INFO L93 Difference]: Finished difference Result 10362 states and 26469 transitions. [2022-01-17 23:26:23,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-17 23:26:23,670 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:26:23,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:23,681 INFO L225 Difference]: With dead ends: 10362 [2022-01-17 23:26:23,681 INFO L226 Difference]: Without dead ends: 10362 [2022-01-17 23:26:23,681 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 322 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=817, Invalid=2045, Unknown=0, NotChecked=0, Total=2862 [2022-01-17 23:26:23,682 INFO L933 BasicCegarLoop]: 341 mSDtfsCounter, 1370 mSDsluCounter, 3423 mSDsCounter, 0 mSdLazyCounter, 1523 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1370 SdHoareTripleChecker+Valid, 3597 SdHoareTripleChecker+Invalid, 1599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 1523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:23,682 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1370 Valid, 3597 Invalid, 1599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 1523 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:26:23,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10362 states. [2022-01-17 23:26:23,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10362 to 3420. [2022-01-17 23:26:23,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3420 states, 3418 states have (on average 2.6869514335868927) internal successors, (9184), 3419 states have internal predecessors, (9184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:23,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3420 states to 3420 states and 9184 transitions. [2022-01-17 23:26:23,749 INFO L78 Accepts]: Start accepts. Automaton has 3420 states and 9184 transitions. Word has length 106 [2022-01-17 23:26:23,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:23,749 INFO L470 AbstractCegarLoop]: Abstraction has 3420 states and 9184 transitions. [2022-01-17 23:26:23,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:23,749 INFO L276 IsEmpty]: Start isEmpty. Operand 3420 states and 9184 transitions. [2022-01-17 23:26:23,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:26:23,753 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:23,753 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:23,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-01-17 23:26:23,753 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)] === [2022-01-17 23:26:23,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:23,753 INFO L85 PathProgramCache]: Analyzing trace with hash -2056612544, now seen corresponding path program 96 times [2022-01-17 23:26:23,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:23,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486297470] [2022-01-17 23:26:23,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:23,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:23,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:24,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:24,253 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:24,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486297470] [2022-01-17 23:26:24,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486297470] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:24,253 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:24,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:26:24,254 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443835443] [2022-01-17 23:26:24,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:24,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:26:24,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:24,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:26:24,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:26:24,254 INFO L87 Difference]: Start difference. First operand 3420 states and 9184 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:26,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:26,920 INFO L93 Difference]: Finished difference Result 9305 states and 24007 transitions. [2022-01-17 23:26:26,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-17 23:26:26,921 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:26:26,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:26,931 INFO L225 Difference]: With dead ends: 9305 [2022-01-17 23:26:26,931 INFO L226 Difference]: Without dead ends: 9305 [2022-01-17 23:26:26,931 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=544, Invalid=1526, Unknown=0, NotChecked=0, Total=2070 [2022-01-17 23:26:26,931 INFO L933 BasicCegarLoop]: 309 mSDtfsCounter, 965 mSDsluCounter, 3478 mSDsCounter, 0 mSdLazyCounter, 1566 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 965 SdHoareTripleChecker+Valid, 3615 SdHoareTripleChecker+Invalid, 1602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:26,932 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [965 Valid, 3615 Invalid, 1602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1566 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:26:26,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9305 states. [2022-01-17 23:26:26,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9305 to 3392. [2022-01-17 23:26:26,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3392 states, 3390 states have (on average 2.6843657817109143) internal successors, (9100), 3391 states have internal predecessors, (9100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:26,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3392 states to 3392 states and 9100 transitions. [2022-01-17 23:26:26,998 INFO L78 Accepts]: Start accepts. Automaton has 3392 states and 9100 transitions. Word has length 106 [2022-01-17 23:26:26,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:26,998 INFO L470 AbstractCegarLoop]: Abstraction has 3392 states and 9100 transitions. [2022-01-17 23:26:26,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:26,998 INFO L276 IsEmpty]: Start isEmpty. Operand 3392 states and 9100 transitions. [2022-01-17 23:26:27,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:26:27,001 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:27,001 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:27,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-01-17 23:26:27,002 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)] === [2022-01-17 23:26:27,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:27,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1790645222, now seen corresponding path program 97 times [2022-01-17 23:26:27,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:27,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012628312] [2022-01-17 23:26:27,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:27,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:27,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:27,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:27,578 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:27,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012628312] [2022-01-17 23:26:27,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012628312] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:27,578 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:27,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:26:27,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191327237] [2022-01-17 23:26:27,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:27,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:26:27,579 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:27,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:26:27,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=524, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:26:27,579 INFO L87 Difference]: Start difference. First operand 3392 states and 9100 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:31,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:31,455 INFO L93 Difference]: Finished difference Result 9904 states and 25385 transitions. [2022-01-17 23:26:31,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:26:31,455 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:26:31,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:31,468 INFO L225 Difference]: With dead ends: 9904 [2022-01-17 23:26:31,468 INFO L226 Difference]: Without dead ends: 9904 [2022-01-17 23:26:31,468 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=776, Invalid=1774, Unknown=0, NotChecked=0, Total=2550 [2022-01-17 23:26:31,468 INFO L933 BasicCegarLoop]: 328 mSDtfsCounter, 1458 mSDsluCounter, 3070 mSDsCounter, 0 mSdLazyCounter, 1248 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1458 SdHoareTripleChecker+Valid, 3255 SdHoareTripleChecker+Invalid, 1334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:31,469 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1458 Valid, 3255 Invalid, 1334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 1248 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:26:31,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9904 states. [2022-01-17 23:26:31,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9904 to 3434. [2022-01-17 23:26:31,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3434 states, 3432 states have (on average 2.688228438228438) internal successors, (9226), 3433 states have internal predecessors, (9226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:31,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3434 states to 3434 states and 9226 transitions. [2022-01-17 23:26:31,546 INFO L78 Accepts]: Start accepts. Automaton has 3434 states and 9226 transitions. Word has length 106 [2022-01-17 23:26:31,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:31,546 INFO L470 AbstractCegarLoop]: Abstraction has 3434 states and 9226 transitions. [2022-01-17 23:26:31,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:31,546 INFO L276 IsEmpty]: Start isEmpty. Operand 3434 states and 9226 transitions. [2022-01-17 23:26:31,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:26:31,550 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:31,550 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:31,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-01-17 23:26:31,550 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)] === [2022-01-17 23:26:31,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:31,550 INFO L85 PathProgramCache]: Analyzing trace with hash -939455684, now seen corresponding path program 98 times [2022-01-17 23:26:31,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:31,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511495742] [2022-01-17 23:26:31,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:31,551 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:31,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:32,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:32,102 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:32,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511495742] [2022-01-17 23:26:32,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511495742] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:32,102 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:32,102 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:26:32,102 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542455586] [2022-01-17 23:26:32,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:32,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:26:32,103 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:32,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:26:32,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:26:32,103 INFO L87 Difference]: Start difference. First operand 3434 states and 9226 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:36,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:36,530 INFO L93 Difference]: Finished difference Result 9628 states and 24688 transitions. [2022-01-17 23:26:36,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:26:36,530 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:26:36,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:36,542 INFO L225 Difference]: With dead ends: 9628 [2022-01-17 23:26:36,542 INFO L226 Difference]: Without dead ends: 9628 [2022-01-17 23:26:36,543 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 279 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=778, Invalid=1874, Unknown=0, NotChecked=0, Total=2652 [2022-01-17 23:26:36,543 INFO L933 BasicCegarLoop]: 328 mSDtfsCounter, 1375 mSDsluCounter, 2918 mSDsCounter, 0 mSdLazyCounter, 1230 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1375 SdHoareTripleChecker+Valid, 3097 SdHoareTripleChecker+Invalid, 1310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 1230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:36,543 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1375 Valid, 3097 Invalid, 1310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 1230 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:26:36,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9628 states. [2022-01-17 23:26:36,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9628 to 3420. [2022-01-17 23:26:36,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3420 states, 3418 states have (on average 2.6869514335868927) internal successors, (9184), 3419 states have internal predecessors, (9184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:36,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3420 states to 3420 states and 9184 transitions. [2022-01-17 23:26:36,617 INFO L78 Accepts]: Start accepts. Automaton has 3420 states and 9184 transitions. Word has length 106 [2022-01-17 23:26:36,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:36,617 INFO L470 AbstractCegarLoop]: Abstraction has 3420 states and 9184 transitions. [2022-01-17 23:26:36,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:36,617 INFO L276 IsEmpty]: Start isEmpty. Operand 3420 states and 9184 transitions. [2022-01-17 23:26:36,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:26:36,621 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:36,621 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:36,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-01-17 23:26:36,621 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)] === [2022-01-17 23:26:36,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:36,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1793581690, now seen corresponding path program 99 times [2022-01-17 23:26:36,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:36,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727119709] [2022-01-17 23:26:36,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:36,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:36,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:37,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:37,122 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:37,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727119709] [2022-01-17 23:26:37,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727119709] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:37,122 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:37,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:26:37,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631237010] [2022-01-17 23:26:37,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:37,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:26:37,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:37,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:26:37,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:26:37,123 INFO L87 Difference]: Start difference. First operand 3420 states and 9184 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:39,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:39,760 INFO L93 Difference]: Finished difference Result 8996 states and 23180 transitions. [2022-01-17 23:26:39,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-17 23:26:39,761 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:26:39,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:39,772 INFO L225 Difference]: With dead ends: 8996 [2022-01-17 23:26:39,773 INFO L226 Difference]: Without dead ends: 8996 [2022-01-17 23:26:39,773 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=559, Invalid=1511, Unknown=0, NotChecked=0, Total=2070 [2022-01-17 23:26:39,773 INFO L933 BasicCegarLoop]: 319 mSDtfsCounter, 1047 mSDsluCounter, 3128 mSDsCounter, 0 mSdLazyCounter, 1225 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1047 SdHoareTripleChecker+Valid, 3290 SdHoareTripleChecker+Invalid, 1271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:39,773 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1047 Valid, 3290 Invalid, 1271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1225 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:26:39,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8996 states. [2022-01-17 23:26:39,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8996 to 3406. [2022-01-17 23:26:39,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3406 states, 3404 states have (on average 2.6856639247943597) internal successors, (9142), 3405 states have internal predecessors, (9142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:39,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3406 states to 3406 states and 9142 transitions. [2022-01-17 23:26:39,857 INFO L78 Accepts]: Start accepts. Automaton has 3406 states and 9142 transitions. Word has length 106 [2022-01-17 23:26:39,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:39,858 INFO L470 AbstractCegarLoop]: Abstraction has 3406 states and 9142 transitions. [2022-01-17 23:26:39,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:39,858 INFO L276 IsEmpty]: Start isEmpty. Operand 3406 states and 9142 transitions. [2022-01-17 23:26:39,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:26:39,861 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:39,861 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:39,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-01-17 23:26:39,861 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)] === [2022-01-17 23:26:39,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:39,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1798520280, now seen corresponding path program 100 times [2022-01-17 23:26:39,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:39,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150869622] [2022-01-17 23:26:39,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:39,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:39,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:40,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:40,444 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:40,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150869622] [2022-01-17 23:26:40,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150869622] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:40,444 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:40,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:26:40,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780065195] [2022-01-17 23:26:40,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:40,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:26:40,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:40,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:26:40,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=524, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:26:40,445 INFO L87 Difference]: Start difference. First operand 3406 states and 9142 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:44,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:44,343 INFO L93 Difference]: Finished difference Result 8915 states and 22895 transitions. [2022-01-17 23:26:44,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:26:44,344 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:26:44,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:44,353 INFO L225 Difference]: With dead ends: 8915 [2022-01-17 23:26:44,353 INFO L226 Difference]: Without dead ends: 8915 [2022-01-17 23:26:44,354 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=783, Invalid=1767, Unknown=0, NotChecked=0, Total=2550 [2022-01-17 23:26:44,354 INFO L933 BasicCegarLoop]: 341 mSDtfsCounter, 1300 mSDsluCounter, 2832 mSDsCounter, 0 mSdLazyCounter, 1170 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1300 SdHoareTripleChecker+Valid, 3033 SdHoareTripleChecker+Invalid, 1246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 1170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:44,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1300 Valid, 3033 Invalid, 1246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 1170 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:26:44,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8915 states. [2022-01-17 23:26:44,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8915 to 3434. [2022-01-17 23:26:44,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3434 states, 3432 states have (on average 2.688228438228438) internal successors, (9226), 3433 states have internal predecessors, (9226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:44,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3434 states to 3434 states and 9226 transitions. [2022-01-17 23:26:44,412 INFO L78 Accepts]: Start accepts. Automaton has 3434 states and 9226 transitions. Word has length 106 [2022-01-17 23:26:44,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:44,412 INFO L470 AbstractCegarLoop]: Abstraction has 3434 states and 9226 transitions. [2022-01-17 23:26:44,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:44,412 INFO L276 IsEmpty]: Start isEmpty. Operand 3434 states and 9226 transitions. [2022-01-17 23:26:44,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:26:44,415 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:44,415 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:44,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-01-17 23:26:44,416 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)] === [2022-01-17 23:26:44,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:44,416 INFO L85 PathProgramCache]: Analyzing trace with hash 35068560, now seen corresponding path program 101 times [2022-01-17 23:26:44,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:44,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590095182] [2022-01-17 23:26:44,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:44,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:44,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:44,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:44,918 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:44,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590095182] [2022-01-17 23:26:44,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590095182] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:44,918 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:44,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:26:44,918 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904958604] [2022-01-17 23:26:44,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:44,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:26:44,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:44,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:26:44,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:26:44,919 INFO L87 Difference]: Start difference. First operand 3434 states and 9226 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:48,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:48,683 INFO L93 Difference]: Finished difference Result 8639 states and 22198 transitions. [2022-01-17 23:26:48,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:26:48,683 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:26:48,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:48,692 INFO L225 Difference]: With dead ends: 8639 [2022-01-17 23:26:48,692 INFO L226 Difference]: Without dead ends: 8639 [2022-01-17 23:26:48,692 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=779, Invalid=1873, Unknown=0, NotChecked=0, Total=2652 [2022-01-17 23:26:48,693 INFO L933 BasicCegarLoop]: 354 mSDtfsCounter, 1141 mSDsluCounter, 3277 mSDsCounter, 0 mSdLazyCounter, 1449 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1141 SdHoareTripleChecker+Valid, 3468 SdHoareTripleChecker+Invalid, 1514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:48,693 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1141 Valid, 3468 Invalid, 1514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1449 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:26:48,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8639 states. [2022-01-17 23:26:48,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8639 to 3420. [2022-01-17 23:26:48,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3420 states, 3418 states have (on average 2.6869514335868927) internal successors, (9184), 3419 states have internal predecessors, (9184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:48,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3420 states to 3420 states and 9184 transitions. [2022-01-17 23:26:48,750 INFO L78 Accepts]: Start accepts. Automaton has 3420 states and 9184 transitions. Word has length 106 [2022-01-17 23:26:48,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:48,750 INFO L470 AbstractCegarLoop]: Abstraction has 3420 states and 9184 transitions. [2022-01-17 23:26:48,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:48,750 INFO L276 IsEmpty]: Start isEmpty. Operand 3420 states and 9184 transitions. [2022-01-17 23:26:48,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:26:48,753 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:48,754 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:48,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-01-17 23:26:48,754 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)] === [2022-01-17 23:26:48,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:48,754 INFO L85 PathProgramCache]: Analyzing trace with hash -107886424, now seen corresponding path program 102 times [2022-01-17 23:26:48,754 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:48,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228445678] [2022-01-17 23:26:48,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:48,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:48,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:49,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:49,280 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:49,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228445678] [2022-01-17 23:26:49,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228445678] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:49,280 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:49,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:26:49,280 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778245358] [2022-01-17 23:26:49,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:49,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:26:49,281 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:49,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:26:49,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:26:49,281 INFO L87 Difference]: Start difference. First operand 3420 states and 9184 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:52,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:52,294 INFO L93 Difference]: Finished difference Result 8016 states and 20623 transitions. [2022-01-17 23:26:52,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:26:52,295 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:26:52,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:52,303 INFO L225 Difference]: With dead ends: 8016 [2022-01-17 23:26:52,304 INFO L226 Difference]: Without dead ends: 8016 [2022-01-17 23:26:52,304 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=593, Invalid=1569, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:26:52,304 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 1268 mSDsluCounter, 3198 mSDsCounter, 0 mSdLazyCounter, 1257 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1268 SdHoareTripleChecker+Valid, 3356 SdHoareTripleChecker+Invalid, 1344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 1257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:52,304 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1268 Valid, 3356 Invalid, 1344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 1257 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:26:52,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8016 states. [2022-01-17 23:26:52,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8016 to 3406. [2022-01-17 23:26:52,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3406 states, 3404 states have (on average 2.6856639247943597) internal successors, (9142), 3405 states have internal predecessors, (9142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:52,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3406 states to 3406 states and 9142 transitions. [2022-01-17 23:26:52,356 INFO L78 Accepts]: Start accepts. Automaton has 3406 states and 9142 transitions. Word has length 106 [2022-01-17 23:26:52,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:52,357 INFO L470 AbstractCegarLoop]: Abstraction has 3406 states and 9142 transitions. [2022-01-17 23:26:52,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:52,357 INFO L276 IsEmpty]: Start isEmpty. Operand 3406 states and 9142 transitions. [2022-01-17 23:26:52,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:26:52,360 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:52,360 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:52,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-01-17 23:26:52,360 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)] === [2022-01-17 23:26:52,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:52,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1930218898, now seen corresponding path program 103 times [2022-01-17 23:26:52,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:52,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576210278] [2022-01-17 23:26:52,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:52,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:52,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:52,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:52,910 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:52,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576210278] [2022-01-17 23:26:52,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576210278] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:52,910 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:52,910 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:26:52,910 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387176938] [2022-01-17 23:26:52,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:52,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:26:52,910 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:52,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:26:52,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:26:52,911 INFO L87 Difference]: Start difference. First operand 3406 states and 9142 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:55,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:55,849 INFO L93 Difference]: Finished difference Result 7972 states and 20442 transitions. [2022-01-17 23:26:55,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:26:55,849 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:26:55,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:55,859 INFO L225 Difference]: With dead ends: 7972 [2022-01-17 23:26:55,860 INFO L226 Difference]: Without dead ends: 7972 [2022-01-17 23:26:55,860 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=577, Invalid=1585, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:26:55,860 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 1036 mSDsluCounter, 3073 mSDsCounter, 0 mSdLazyCounter, 1339 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1036 SdHoareTripleChecker+Valid, 3206 SdHoareTripleChecker+Invalid, 1390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:55,860 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1036 Valid, 3206 Invalid, 1390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1339 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:26:55,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7972 states. [2022-01-17 23:26:55,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7972 to 3408. [2022-01-17 23:26:55,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3408 states, 3406 states have (on average 2.685554903112155) internal successors, (9147), 3407 states have internal predecessors, (9147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:55,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3408 states to 3408 states and 9147 transitions. [2022-01-17 23:26:55,919 INFO L78 Accepts]: Start accepts. Automaton has 3408 states and 9147 transitions. Word has length 106 [2022-01-17 23:26:55,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:55,920 INFO L470 AbstractCegarLoop]: Abstraction has 3408 states and 9147 transitions. [2022-01-17 23:26:55,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:55,920 INFO L276 IsEmpty]: Start isEmpty. Operand 3408 states and 9147 transitions. [2022-01-17 23:26:55,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:26:55,923 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:55,923 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:55,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-01-17 23:26:55,923 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)] === [2022-01-17 23:26:55,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:55,925 INFO L85 PathProgramCache]: Analyzing trace with hash 2126584124, now seen corresponding path program 104 times [2022-01-17 23:26:55,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:55,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490282070] [2022-01-17 23:26:55,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:55,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:55,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:56,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:56,469 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:56,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490282070] [2022-01-17 23:26:56,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490282070] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:56,470 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:56,470 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:26:56,470 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222626481] [2022-01-17 23:26:56,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:56,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:26:56,470 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:56,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:26:56,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:26:56,471 INFO L87 Difference]: Start difference. First operand 3408 states and 9147 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:59,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:59,436 INFO L93 Difference]: Finished difference Result 7872 states and 20247 transitions. [2022-01-17 23:26:59,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:26:59,437 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:26:59,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:59,445 INFO L225 Difference]: With dead ends: 7872 [2022-01-17 23:26:59,446 INFO L226 Difference]: Without dead ends: 7872 [2022-01-17 23:26:59,446 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=578, Invalid=1584, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:26:59,446 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 972 mSDsluCounter, 3310 mSDsCounter, 0 mSdLazyCounter, 1377 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 972 SdHoareTripleChecker+Valid, 3443 SdHoareTripleChecker+Invalid, 1422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:59,446 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [972 Valid, 3443 Invalid, 1422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1377 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:26:59,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7872 states. [2022-01-17 23:26:59,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7872 to 3392. [2022-01-17 23:26:59,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3392 states, 3390 states have (on average 2.6843657817109143) internal successors, (9100), 3391 states have internal predecessors, (9100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:59,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3392 states to 3392 states and 9100 transitions. [2022-01-17 23:26:59,505 INFO L78 Accepts]: Start accepts. Automaton has 3392 states and 9100 transitions. Word has length 106 [2022-01-17 23:26:59,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:59,505 INFO L470 AbstractCegarLoop]: Abstraction has 3392 states and 9100 transitions. [2022-01-17 23:26:59,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:59,505 INFO L276 IsEmpty]: Start isEmpty. Operand 3392 states and 9100 transitions. [2022-01-17 23:26:59,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:26:59,509 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:59,509 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:59,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-01-17 23:26:59,509 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)] === [2022-01-17 23:26:59,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:59,510 INFO L85 PathProgramCache]: Analyzing trace with hash -966462872, now seen corresponding path program 105 times [2022-01-17 23:26:59,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:59,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118096018] [2022-01-17 23:26:59,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:59,510 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:59,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:00,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:00,059 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:00,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118096018] [2022-01-17 23:27:00,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118096018] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:00,059 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:00,060 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:27:00,060 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128218148] [2022-01-17 23:27:00,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:00,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:27:00,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:00,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:27:00,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:27:00,060 INFO L87 Difference]: Start difference. First operand 3392 states and 9100 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:03,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:03,087 INFO L93 Difference]: Finished difference Result 8069 states and 20662 transitions. [2022-01-17 23:27:03,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-17 23:27:03,087 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:27:03,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:03,097 INFO L225 Difference]: With dead ends: 8069 [2022-01-17 23:27:03,097 INFO L226 Difference]: Without dead ends: 8069 [2022-01-17 23:27:03,097 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=594, Invalid=1662, Unknown=0, NotChecked=0, Total=2256 [2022-01-17 23:27:03,097 INFO L933 BasicCegarLoop]: 293 mSDtfsCounter, 960 mSDsluCounter, 3335 mSDsCounter, 0 mSdLazyCounter, 1566 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 960 SdHoareTripleChecker+Valid, 3458 SdHoareTripleChecker+Invalid, 1617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:03,098 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [960 Valid, 3458 Invalid, 1617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1566 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:27:03,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8069 states. [2022-01-17 23:27:03,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8069 to 3396. [2022-01-17 23:27:03,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3396 states, 3394 states have (on average 2.6841484973482617) internal successors, (9110), 3395 states have internal predecessors, (9110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:03,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3396 states to 3396 states and 9110 transitions. [2022-01-17 23:27:03,160 INFO L78 Accepts]: Start accepts. Automaton has 3396 states and 9110 transitions. Word has length 106 [2022-01-17 23:27:03,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:03,160 INFO L470 AbstractCegarLoop]: Abstraction has 3396 states and 9110 transitions. [2022-01-17 23:27:03,160 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:03,161 INFO L276 IsEmpty]: Start isEmpty. Operand 3396 states and 9110 transitions. [2022-01-17 23:27:03,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:27:03,164 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:03,164 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:03,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2022-01-17 23:27:03,164 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)] === [2022-01-17 23:27:03,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:03,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1859595016, now seen corresponding path program 106 times [2022-01-17 23:27:03,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:03,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458268836] [2022-01-17 23:27:03,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:03,165 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:03,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:03,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:03,666 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:03,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458268836] [2022-01-17 23:27:03,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458268836] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:03,666 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:03,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:27:03,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65575561] [2022-01-17 23:27:03,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:03,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:27:03,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:03,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:27:03,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:27:03,667 INFO L87 Difference]: Start difference. First operand 3396 states and 9110 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:06,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:06,079 INFO L93 Difference]: Finished difference Result 8074 states and 20666 transitions. [2022-01-17 23:27:06,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-17 23:27:06,080 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:27:06,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:06,090 INFO L225 Difference]: With dead ends: 8074 [2022-01-17 23:27:06,090 INFO L226 Difference]: Without dead ends: 8074 [2022-01-17 23:27:06,091 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=529, Invalid=1541, Unknown=0, NotChecked=0, Total=2070 [2022-01-17 23:27:06,091 INFO L933 BasicCegarLoop]: 298 mSDtfsCounter, 968 mSDsluCounter, 3002 mSDsCounter, 0 mSdLazyCounter, 1226 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 968 SdHoareTripleChecker+Valid, 3131 SdHoareTripleChecker+Invalid, 1268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:06,091 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [968 Valid, 3131 Invalid, 1268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1226 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:27:06,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8074 states. [2022-01-17 23:27:06,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8074 to 3398. [2022-01-17 23:27:06,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3398 states, 3396 states have (on average 2.684040047114252) internal successors, (9115), 3397 states have internal predecessors, (9115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:06,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3398 states to 3398 states and 9115 transitions. [2022-01-17 23:27:06,152 INFO L78 Accepts]: Start accepts. Automaton has 3398 states and 9115 transitions. Word has length 106 [2022-01-17 23:27:06,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:06,152 INFO L470 AbstractCegarLoop]: Abstraction has 3398 states and 9115 transitions. [2022-01-17 23:27:06,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:06,152 INFO L276 IsEmpty]: Start isEmpty. Operand 3398 states and 9115 transitions. [2022-01-17 23:27:06,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:27:06,155 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:06,155 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:06,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2022-01-17 23:27:06,156 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)] === [2022-01-17 23:27:06,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:06,156 INFO L85 PathProgramCache]: Analyzing trace with hash -2097759290, now seen corresponding path program 107 times [2022-01-17 23:27:06,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:06,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888459797] [2022-01-17 23:27:06,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:06,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:06,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:06,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:06,660 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:06,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888459797] [2022-01-17 23:27:06,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888459797] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:06,660 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:06,660 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:27:06,660 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586993361] [2022-01-17 23:27:06,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:06,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:27:06,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:06,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:27:06,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:27:06,661 INFO L87 Difference]: Start difference. First operand 3398 states and 9115 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:09,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:09,126 INFO L93 Difference]: Finished difference Result 7929 states and 20376 transitions. [2022-01-17 23:27:09,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:27:09,126 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:27:09,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:09,136 INFO L225 Difference]: With dead ends: 7929 [2022-01-17 23:27:09,136 INFO L226 Difference]: Without dead ends: 7929 [2022-01-17 23:27:09,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=563, Invalid=1599, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:27:09,137 INFO L933 BasicCegarLoop]: 293 mSDtfsCounter, 1022 mSDsluCounter, 2889 mSDsCounter, 0 mSdLazyCounter, 1197 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1022 SdHoareTripleChecker+Valid, 3020 SdHoareTripleChecker+Invalid, 1258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:09,137 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1022 Valid, 3020 Invalid, 1258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1197 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:27:09,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7929 states. [2022-01-17 23:27:09,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7929 to 3364. [2022-01-17 23:27:09,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3364 states, 3362 states have (on average 2.6817370612730516) internal successors, (9016), 3363 states have internal predecessors, (9016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:09,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3364 states to 3364 states and 9016 transitions. [2022-01-17 23:27:09,195 INFO L78 Accepts]: Start accepts. Automaton has 3364 states and 9016 transitions. Word has length 106 [2022-01-17 23:27:09,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:09,195 INFO L470 AbstractCegarLoop]: Abstraction has 3364 states and 9016 transitions. [2022-01-17 23:27:09,196 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:09,196 INFO L276 IsEmpty]: Start isEmpty. Operand 3364 states and 9016 transitions. [2022-01-17 23:27:09,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:27:09,199 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:09,199 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:09,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2022-01-17 23:27:09,199 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)] === [2022-01-17 23:27:09,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:09,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1323275224, now seen corresponding path program 108 times [2022-01-17 23:27:09,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:09,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46206897] [2022-01-17 23:27:09,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:09,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:09,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:09,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:09,697 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:09,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46206897] [2022-01-17 23:27:09,697 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46206897] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:09,697 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:09,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:27:09,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006429430] [2022-01-17 23:27:09,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:09,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:27:09,698 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:09,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:27:09,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:27:09,698 INFO L87 Difference]: Start difference. First operand 3364 states and 9016 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:12,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:12,025 INFO L93 Difference]: Finished difference Result 8105 states and 20769 transitions. [2022-01-17 23:27:12,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-17 23:27:12,025 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:27:12,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:12,035 INFO L225 Difference]: With dead ends: 8105 [2022-01-17 23:27:12,035 INFO L226 Difference]: Without dead ends: 8105 [2022-01-17 23:27:12,036 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=514, Invalid=1556, Unknown=0, NotChecked=0, Total=2070 [2022-01-17 23:27:12,036 INFO L933 BasicCegarLoop]: 287 mSDtfsCounter, 915 mSDsluCounter, 3212 mSDsCounter, 0 mSdLazyCounter, 1394 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 915 SdHoareTripleChecker+Valid, 3334 SdHoareTripleChecker+Invalid, 1438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:12,036 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [915 Valid, 3334 Invalid, 1438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1394 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:27:12,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8105 states. [2022-01-17 23:27:12,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8105 to 3366. [2022-01-17 23:27:12,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3366 states, 3364 states have (on average 2.681629013079667) internal successors, (9021), 3365 states have internal predecessors, (9021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:12,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3366 states to 3366 states and 9021 transitions. [2022-01-17 23:27:12,101 INFO L78 Accepts]: Start accepts. Automaton has 3366 states and 9021 transitions. Word has length 106 [2022-01-17 23:27:12,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:12,101 INFO L470 AbstractCegarLoop]: Abstraction has 3366 states and 9021 transitions. [2022-01-17 23:27:12,101 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:12,101 INFO L276 IsEmpty]: Start isEmpty. Operand 3366 states and 9021 transitions. [2022-01-17 23:27:12,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:27:12,105 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:12,105 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:12,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2022-01-17 23:27:12,105 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)] === [2022-01-17 23:27:12,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:12,106 INFO L85 PathProgramCache]: Analyzing trace with hash 488958708, now seen corresponding path program 109 times [2022-01-17 23:27:12,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:12,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847452902] [2022-01-17 23:27:12,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:12,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:12,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:12,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:12,662 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:12,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847452902] [2022-01-17 23:27:12,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847452902] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:12,662 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:12,662 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:27:12,662 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830224842] [2022-01-17 23:27:12,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:12,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:27:12,662 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:12,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:27:12,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:27:12,663 INFO L87 Difference]: Start difference. First operand 3366 states and 9021 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:15,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:15,536 INFO L93 Difference]: Finished difference Result 8220 states and 20973 transitions. [2022-01-17 23:27:15,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-17 23:27:15,537 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:27:15,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:15,545 INFO L225 Difference]: With dead ends: 8220 [2022-01-17 23:27:15,545 INFO L226 Difference]: Without dead ends: 8220 [2022-01-17 23:27:15,545 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=579, Invalid=1677, Unknown=0, NotChecked=0, Total=2256 [2022-01-17 23:27:15,545 INFO L933 BasicCegarLoop]: 282 mSDtfsCounter, 951 mSDsluCounter, 3192 mSDsCounter, 0 mSdLazyCounter, 1433 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 951 SdHoareTripleChecker+Valid, 3299 SdHoareTripleChecker+Invalid, 1496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:15,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [951 Valid, 3299 Invalid, 1496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1433 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:27:15,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8220 states. [2022-01-17 23:27:15,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8220 to 3370. [2022-01-17 23:27:15,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3370 states, 3368 states have (on average 2.6814133016627077) internal successors, (9031), 3369 states have internal predecessors, (9031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:15,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3370 states to 3370 states and 9031 transitions. [2022-01-17 23:27:15,595 INFO L78 Accepts]: Start accepts. Automaton has 3370 states and 9031 transitions. Word has length 106 [2022-01-17 23:27:15,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:15,595 INFO L470 AbstractCegarLoop]: Abstraction has 3370 states and 9031 transitions. [2022-01-17 23:27:15,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:15,595 INFO L276 IsEmpty]: Start isEmpty. Operand 3370 states and 9031 transitions. [2022-01-17 23:27:15,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:27:15,598 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:15,598 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:15,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2022-01-17 23:27:15,598 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)] === [2022-01-17 23:27:15,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:15,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1298809110, now seen corresponding path program 110 times [2022-01-17 23:27:15,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:15,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233078689] [2022-01-17 23:27:15,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:15,599 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:15,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:16,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:16,134 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:16,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233078689] [2022-01-17 23:27:16,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233078689] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:16,135 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:16,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:27:16,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578850290] [2022-01-17 23:27:16,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:16,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:27:16,135 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:16,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:27:16,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:27:16,136 INFO L87 Difference]: Start difference. First operand 3370 states and 9031 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:18,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:18,877 INFO L93 Difference]: Finished difference Result 8169 states and 20859 transitions. [2022-01-17 23:27:18,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:27:18,877 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:27:18,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:18,886 INFO L225 Difference]: With dead ends: 8169 [2022-01-17 23:27:18,886 INFO L226 Difference]: Without dead ends: 8169 [2022-01-17 23:27:18,886 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=547, Invalid=1615, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:27:18,887 INFO L933 BasicCegarLoop]: 282 mSDtfsCounter, 937 mSDsluCounter, 3238 mSDsCounter, 0 mSdLazyCounter, 1497 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 937 SdHoareTripleChecker+Valid, 3333 SdHoareTripleChecker+Invalid, 1546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:18,887 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [937 Valid, 3333 Invalid, 1546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1497 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:27:18,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8169 states. [2022-01-17 23:27:18,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8169 to 3372. [2022-01-17 23:27:18,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3372 states, 3370 states have (on average 2.681305637982196) internal successors, (9036), 3371 states have internal predecessors, (9036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:18,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3372 states to 3372 states and 9036 transitions. [2022-01-17 23:27:18,940 INFO L78 Accepts]: Start accepts. Automaton has 3372 states and 9036 transitions. Word has length 106 [2022-01-17 23:27:18,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:18,940 INFO L470 AbstractCegarLoop]: Abstraction has 3372 states and 9036 transitions. [2022-01-17 23:27:18,940 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:18,940 INFO L276 IsEmpty]: Start isEmpty. Operand 3372 states and 9036 transitions. [2022-01-17 23:27:18,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:27:18,943 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:18,943 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:18,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2022-01-17 23:27:18,943 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)] === [2022-01-17 23:27:18,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:18,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1060644836, now seen corresponding path program 111 times [2022-01-17 23:27:18,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:18,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142634233] [2022-01-17 23:27:18,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:18,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:18,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:19,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:19,430 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:19,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142634233] [2022-01-17 23:27:19,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142634233] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:19,430 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:19,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:27:19,430 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112307226] [2022-01-17 23:27:19,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:19,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:27:19,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:19,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:27:19,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:27:19,431 INFO L87 Difference]: Start difference. First operand 3372 states and 9036 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:21,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:21,888 INFO L93 Difference]: Finished difference Result 7986 states and 20505 transitions. [2022-01-17 23:27:21,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:27:21,888 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:27:21,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:21,897 INFO L225 Difference]: With dead ends: 7986 [2022-01-17 23:27:21,898 INFO L226 Difference]: Without dead ends: 7986 [2022-01-17 23:27:21,898 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=548, Invalid=1614, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:27:21,898 INFO L933 BasicCegarLoop]: 292 mSDtfsCounter, 972 mSDsluCounter, 3031 mSDsCounter, 0 mSdLazyCounter, 1270 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 972 SdHoareTripleChecker+Valid, 3151 SdHoareTripleChecker+Invalid, 1329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:21,898 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [972 Valid, 3151 Invalid, 1329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1270 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:27:21,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7986 states. [2022-01-17 23:27:21,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7986 to 3350. [2022-01-17 23:27:21,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3350 states, 3348 states have (on average 2.6804062126642774) internal successors, (8974), 3349 states have internal predecessors, (8974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:21,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3350 states to 3350 states and 8974 transitions. [2022-01-17 23:27:21,961 INFO L78 Accepts]: Start accepts. Automaton has 3350 states and 8974 transitions. Word has length 106 [2022-01-17 23:27:21,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:21,961 INFO L470 AbstractCegarLoop]: Abstraction has 3350 states and 8974 transitions. [2022-01-17 23:27:21,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:21,962 INFO L276 IsEmpty]: Start isEmpty. Operand 3350 states and 8974 transitions. [2022-01-17 23:27:21,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:27:21,965 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:21,965 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:21,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2022-01-17 23:27:21,966 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)] === [2022-01-17 23:27:21,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:21,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1179828498, now seen corresponding path program 112 times [2022-01-17 23:27:21,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:21,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678570482] [2022-01-17 23:27:21,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:21,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:21,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:22,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:22,530 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:22,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678570482] [2022-01-17 23:27:22,531 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678570482] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:22,531 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:22,531 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:27:22,531 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865179624] [2022-01-17 23:27:22,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:22,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:27:22,531 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:22,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:27:22,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:27:22,532 INFO L87 Difference]: Start difference. First operand 3350 states and 8974 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:25,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:25,924 INFO L93 Difference]: Finished difference Result 6923 states and 17625 transitions. [2022-01-17 23:27:25,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-17 23:27:25,925 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:27:25,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:25,933 INFO L225 Difference]: With dead ends: 6923 [2022-01-17 23:27:25,933 INFO L226 Difference]: Without dead ends: 6923 [2022-01-17 23:27:25,934 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=625, Invalid=1825, Unknown=0, NotChecked=0, Total=2450 [2022-01-17 23:27:25,934 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 961 mSDsluCounter, 2909 mSDsCounter, 0 mSdLazyCounter, 1455 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 961 SdHoareTripleChecker+Valid, 3012 SdHoareTripleChecker+Invalid, 1516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:25,934 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [961 Valid, 3012 Invalid, 1516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1455 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:27:25,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6923 states. [2022-01-17 23:27:25,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6923 to 3352. [2022-01-17 23:27:25,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3352 states, 3350 states have (on average 2.6802985074626866) internal successors, (8979), 3351 states have internal predecessors, (8979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:25,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3352 states to 3352 states and 8979 transitions. [2022-01-17 23:27:25,986 INFO L78 Accepts]: Start accepts. Automaton has 3352 states and 8979 transitions. Word has length 106 [2022-01-17 23:27:25,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:25,986 INFO L470 AbstractCegarLoop]: Abstraction has 3352 states and 8979 transitions. [2022-01-17 23:27:25,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:25,986 INFO L276 IsEmpty]: Start isEmpty. Operand 3352 states and 8979 transitions. [2022-01-17 23:27:25,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:27:25,989 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:25,989 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:25,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2022-01-17 23:27:25,990 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)] === [2022-01-17 23:27:25,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:25,990 INFO L85 PathProgramCache]: Analyzing trace with hash -674161340, now seen corresponding path program 113 times [2022-01-17 23:27:25,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:25,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868587020] [2022-01-17 23:27:25,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:25,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:26,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:26,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:26,543 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:26,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868587020] [2022-01-17 23:27:26,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868587020] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:26,544 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:26,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:27:26,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753435150] [2022-01-17 23:27:26,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:26,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:27:26,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:26,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:27:26,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:27:26,544 INFO L87 Difference]: Start difference. First operand 3352 states and 8979 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:29,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:29,401 INFO L93 Difference]: Finished difference Result 7016 states and 17800 transitions. [2022-01-17 23:27:29,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-17 23:27:29,401 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:27:29,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:29,408 INFO L225 Difference]: With dead ends: 7016 [2022-01-17 23:27:29,409 INFO L226 Difference]: Without dead ends: 7016 [2022-01-17 23:27:29,409 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 271 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=595, Invalid=1757, Unknown=0, NotChecked=0, Total=2352 [2022-01-17 23:27:29,409 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 1022 mSDsluCounter, 2947 mSDsCounter, 0 mSdLazyCounter, 1382 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1022 SdHoareTripleChecker+Valid, 3033 SdHoareTripleChecker+Invalid, 1450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:29,409 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1022 Valid, 3033 Invalid, 1450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 1382 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:27:29,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7016 states. [2022-01-17 23:27:29,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7016 to 3354. [2022-01-17 23:27:29,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3354 states, 3352 states have (on average 2.6801909307875893) internal successors, (8984), 3353 states have internal predecessors, (8984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:29,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3354 states to 3354 states and 8984 transitions. [2022-01-17 23:27:29,454 INFO L78 Accepts]: Start accepts. Automaton has 3354 states and 8984 transitions. Word has length 106 [2022-01-17 23:27:29,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:29,455 INFO L470 AbstractCegarLoop]: Abstraction has 3354 states and 8984 transitions. [2022-01-17 23:27:29,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:29,455 INFO L276 IsEmpty]: Start isEmpty. Operand 3354 states and 8984 transitions. [2022-01-17 23:27:29,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:27:29,458 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:29,458 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:29,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2022-01-17 23:27:29,458 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)] === [2022-01-17 23:27:29,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:29,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1138072592, now seen corresponding path program 114 times [2022-01-17 23:27:29,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:29,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175960368] [2022-01-17 23:27:29,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:29,459 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:29,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:29,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:29,997 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:29,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175960368] [2022-01-17 23:27:29,997 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175960368] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:29,997 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:29,997 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:27:29,997 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270200108] [2022-01-17 23:27:29,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:29,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:27:29,998 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:29,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:27:29,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:27:29,998 INFO L87 Difference]: Start difference. First operand 3354 states and 8984 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:32,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:32,684 INFO L93 Difference]: Finished difference Result 6965 states and 17686 transitions. [2022-01-17 23:27:32,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-17 23:27:32,684 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:27:32,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:32,693 INFO L225 Difference]: With dead ends: 6965 [2022-01-17 23:27:32,693 INFO L226 Difference]: Without dead ends: 6965 [2022-01-17 23:27:32,693 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=564, Invalid=1692, Unknown=0, NotChecked=0, Total=2256 [2022-01-17 23:27:32,693 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 972 mSDsluCounter, 2875 mSDsCounter, 0 mSdLazyCounter, 1278 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 972 SdHoareTripleChecker+Valid, 2964 SdHoareTripleChecker+Invalid, 1332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:32,693 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [972 Valid, 2964 Invalid, 1332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1278 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:27:32,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6965 states. [2022-01-17 23:27:32,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6965 to 3358. [2022-01-17 23:27:32,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3358 states, 3356 states have (on average 2.6799761620977356) internal successors, (8994), 3357 states have internal predecessors, (8994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:32,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3358 states to 3358 states and 8994 transitions. [2022-01-17 23:27:32,751 INFO L78 Accepts]: Start accepts. Automaton has 3358 states and 8994 transitions. Word has length 106 [2022-01-17 23:27:32,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:32,751 INFO L470 AbstractCegarLoop]: Abstraction has 3358 states and 8994 transitions. [2022-01-17 23:27:32,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:32,751 INFO L276 IsEmpty]: Start isEmpty. Operand 3358 states and 8994 transitions. [2022-01-17 23:27:32,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:27:32,755 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:32,755 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:32,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2022-01-17 23:27:32,755 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)] === [2022-01-17 23:27:32,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:32,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1947922994, now seen corresponding path program 115 times [2022-01-17 23:27:32,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:32,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823662742] [2022-01-17 23:27:32,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:32,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:32,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:33,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:33,297 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:33,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823662742] [2022-01-17 23:27:33,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823662742] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:33,297 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:33,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:27:33,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907019015] [2022-01-17 23:27:33,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:33,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:27:33,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:33,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:27:33,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:27:33,298 INFO L87 Difference]: Start difference. First operand 3358 states and 8994 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:35,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:35,832 INFO L93 Difference]: Finished difference Result 6914 states and 17572 transitions. [2022-01-17 23:27:35,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:27:35,833 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:27:35,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:35,841 INFO L225 Difference]: With dead ends: 6914 [2022-01-17 23:27:35,841 INFO L226 Difference]: Without dead ends: 6914 [2022-01-17 23:27:35,841 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=532, Invalid=1630, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:27:35,841 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 979 mSDsluCounter, 2793 mSDsCounter, 0 mSdLazyCounter, 1267 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 979 SdHoareTripleChecker+Valid, 2874 SdHoareTripleChecker+Invalid, 1320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:35,841 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [979 Valid, 2874 Invalid, 1320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1267 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:27:35,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6914 states. [2022-01-17 23:27:35,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6914 to 3360. [2022-01-17 23:27:35,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3360 states, 3358 states have (on average 2.679868969624777) internal successors, (8999), 3359 states have internal predecessors, (8999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:35,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3360 states to 3360 states and 8999 transitions. [2022-01-17 23:27:35,895 INFO L78 Accepts]: Start accepts. Automaton has 3360 states and 8999 transitions. Word has length 106 [2022-01-17 23:27:35,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:35,895 INFO L470 AbstractCegarLoop]: Abstraction has 3360 states and 8999 transitions. [2022-01-17 23:27:35,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:35,895 INFO L276 IsEmpty]: Start isEmpty. Operand 3360 states and 8999 transitions. [2022-01-17 23:27:35,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:27:35,899 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:35,899 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:35,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2022-01-17 23:27:35,899 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)] === [2022-01-17 23:27:35,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:35,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1709758720, now seen corresponding path program 116 times [2022-01-17 23:27:35,899 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:35,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436852549] [2022-01-17 23:27:35,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:35,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:35,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:36,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:36,428 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:36,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436852549] [2022-01-17 23:27:36,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436852549] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:36,428 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:36,429 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:27:36,429 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800317701] [2022-01-17 23:27:36,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:36,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:27:36,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:36,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:27:36,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:27:36,429 INFO L87 Difference]: Start difference. First operand 3360 states and 8999 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:38,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:38,959 INFO L93 Difference]: Finished difference Result 6731 states and 17218 transitions. [2022-01-17 23:27:38,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:27:38,959 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:27:38,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:38,968 INFO L225 Difference]: With dead ends: 6731 [2022-01-17 23:27:38,968 INFO L226 Difference]: Without dead ends: 6731 [2022-01-17 23:27:38,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=533, Invalid=1629, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:27:38,968 INFO L933 BasicCegarLoop]: 253 mSDtfsCounter, 969 mSDsluCounter, 3011 mSDsCounter, 0 mSdLazyCounter, 1322 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 969 SdHoareTripleChecker+Valid, 3098 SdHoareTripleChecker+Invalid, 1377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:38,968 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [969 Valid, 3098 Invalid, 1377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1322 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:27:38,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6731 states. [2022-01-17 23:27:39,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6731 to 3352. [2022-01-17 23:27:39,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3352 states, 3350 states have (on average 2.6802985074626866) internal successors, (8979), 3351 states have internal predecessors, (8979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:39,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3352 states to 3352 states and 8979 transitions. [2022-01-17 23:27:39,021 INFO L78 Accepts]: Start accepts. Automaton has 3352 states and 8979 transitions. Word has length 106 [2022-01-17 23:27:39,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:39,021 INFO L470 AbstractCegarLoop]: Abstraction has 3352 states and 8979 transitions. [2022-01-17 23:27:39,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:39,022 INFO L276 IsEmpty]: Start isEmpty. Operand 3352 states and 8979 transitions. [2022-01-17 23:27:39,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:27:39,025 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:39,025 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:39,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2022-01-17 23:27:39,025 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)] === [2022-01-17 23:27:39,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:39,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1776643474, now seen corresponding path program 117 times [2022-01-17 23:27:39,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:39,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760152238] [2022-01-17 23:27:39,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:39,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:39,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:39,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:39,540 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:39,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760152238] [2022-01-17 23:27:39,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760152238] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:39,541 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:39,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:27:39,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912484544] [2022-01-17 23:27:39,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:39,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:27:39,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:39,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:27:39,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:27:39,541 INFO L87 Difference]: Start difference. First operand 3352 states and 8979 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:41,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:41,663 INFO L93 Difference]: Finished difference Result 5714 states and 14777 transitions. [2022-01-17 23:27:41,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-17 23:27:41,663 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:27:41,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:41,670 INFO L225 Difference]: With dead ends: 5714 [2022-01-17 23:27:41,670 INFO L226 Difference]: Without dead ends: 5714 [2022-01-17 23:27:41,671 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=481, Invalid=1589, Unknown=0, NotChecked=0, Total=2070 [2022-01-17 23:27:41,671 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 880 mSDsluCounter, 2696 mSDsCounter, 0 mSdLazyCounter, 1140 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 880 SdHoareTripleChecker+Valid, 2787 SdHoareTripleChecker+Invalid, 1195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:41,671 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [880 Valid, 2787 Invalid, 1195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1140 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:27:41,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5714 states. [2022-01-17 23:27:41,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5714 to 3372. [2022-01-17 23:27:41,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3372 states, 3370 states have (on average 2.6792284866468843) internal successors, (9029), 3371 states have internal predecessors, (9029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:41,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3372 states to 3372 states and 9029 transitions. [2022-01-17 23:27:41,721 INFO L78 Accepts]: Start accepts. Automaton has 3372 states and 9029 transitions. Word has length 106 [2022-01-17 23:27:41,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:41,721 INFO L470 AbstractCegarLoop]: Abstraction has 3372 states and 9029 transitions. [2022-01-17 23:27:41,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:41,721 INFO L276 IsEmpty]: Start isEmpty. Operand 3372 states and 9029 transitions. [2022-01-17 23:27:41,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:27:41,724 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:41,724 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:41,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2022-01-17 23:27:41,724 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)] === [2022-01-17 23:27:41,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:41,725 INFO L85 PathProgramCache]: Analyzing trace with hash -785848296, now seen corresponding path program 118 times [2022-01-17 23:27:41,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:41,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915916117] [2022-01-17 23:27:41,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:41,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:41,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:42,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:42,269 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:42,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915916117] [2022-01-17 23:27:42,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915916117] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:42,269 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:42,269 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:27:42,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80536679] [2022-01-17 23:27:42,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:42,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:27:42,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:42,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:27:42,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:27:42,270 INFO L87 Difference]: Start difference. First operand 3372 states and 9029 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:44,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:44,469 INFO L93 Difference]: Finished difference Result 5986 states and 15323 transitions. [2022-01-17 23:27:44,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:27:44,469 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:27:44,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:44,476 INFO L225 Difference]: With dead ends: 5986 [2022-01-17 23:27:44,477 INFO L226 Difference]: Without dead ends: 5986 [2022-01-17 23:27:44,477 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=517, Invalid=1645, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:27:44,477 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 796 mSDsluCounter, 2765 mSDsCounter, 0 mSdLazyCounter, 1300 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 796 SdHoareTripleChecker+Valid, 2833 SdHoareTripleChecker+Invalid, 1348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:44,477 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [796 Valid, 2833 Invalid, 1348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1300 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:27:44,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5986 states. [2022-01-17 23:27:44,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5986 to 3374. [2022-01-17 23:27:44,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3374 states, 3372 states have (on average 2.6791221826809015) internal successors, (9034), 3373 states have internal predecessors, (9034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:44,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3374 states to 3374 states and 9034 transitions. [2022-01-17 23:27:44,530 INFO L78 Accepts]: Start accepts. Automaton has 3374 states and 9034 transitions. Word has length 106 [2022-01-17 23:27:44,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:44,531 INFO L470 AbstractCegarLoop]: Abstraction has 3374 states and 9034 transitions. [2022-01-17 23:27:44,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:44,531 INFO L276 IsEmpty]: Start isEmpty. Operand 3374 states and 9034 transitions. [2022-01-17 23:27:44,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:27:44,534 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:44,534 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:44,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2022-01-17 23:27:44,534 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)] === [2022-01-17 23:27:44,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:44,535 INFO L85 PathProgramCache]: Analyzing trace with hash -239341686, now seen corresponding path program 119 times [2022-01-17 23:27:44,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:44,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844760840] [2022-01-17 23:27:44,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:44,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:44,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:45,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:45,069 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:45,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844760840] [2022-01-17 23:27:45,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844760840] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:45,069 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:45,069 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:27:45,069 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321129902] [2022-01-17 23:27:45,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:45,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:27:45,070 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:45,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:27:45,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:27:45,070 INFO L87 Difference]: Start difference. First operand 3374 states and 9034 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:47,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:47,244 INFO L93 Difference]: Finished difference Result 6019 states and 15392 transitions. [2022-01-17 23:27:47,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:27:47,245 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:27:47,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:47,252 INFO L225 Difference]: With dead ends: 6019 [2022-01-17 23:27:47,252 INFO L226 Difference]: Without dead ends: 6019 [2022-01-17 23:27:47,253 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=518, Invalid=1644, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:27:47,253 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 845 mSDsluCounter, 2661 mSDsCounter, 0 mSdLazyCounter, 1206 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 845 SdHoareTripleChecker+Valid, 2735 SdHoareTripleChecker+Invalid, 1259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:47,253 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [845 Valid, 2735 Invalid, 1259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1206 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:27:47,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6019 states. [2022-01-17 23:27:47,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6019 to 3368. [2022-01-17 23:27:47,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3368 states, 3366 states have (on average 2.6794414735591205) internal successors, (9019), 3367 states have internal predecessors, (9019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:47,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3368 states to 3368 states and 9019 transitions. [2022-01-17 23:27:47,304 INFO L78 Accepts]: Start accepts. Automaton has 3368 states and 9019 transitions. Word has length 106 [2022-01-17 23:27:47,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:47,304 INFO L470 AbstractCegarLoop]: Abstraction has 3368 states and 9019 transitions. [2022-01-17 23:27:47,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:47,304 INFO L276 IsEmpty]: Start isEmpty. Operand 3368 states and 9019 transitions. [2022-01-17 23:27:47,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:27:47,308 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:47,308 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:47,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2022-01-17 23:27:47,308 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)] === [2022-01-17 23:27:47,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:47,308 INFO L85 PathProgramCache]: Analyzing trace with hash 801116592, now seen corresponding path program 120 times [2022-01-17 23:27:47,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:47,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900372198] [2022-01-17 23:27:47,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:47,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:47,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:47,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:47,833 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:47,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900372198] [2022-01-17 23:27:47,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900372198] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:47,833 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:47,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:27:47,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919563162] [2022-01-17 23:27:47,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:47,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:27:47,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:47,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:27:47,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:27:47,834 INFO L87 Difference]: Start difference. First operand 3368 states and 9019 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:50,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:50,215 INFO L93 Difference]: Finished difference Result 6049 states and 15467 transitions. [2022-01-17 23:27:50,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-17 23:27:50,215 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:27:50,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:50,223 INFO L225 Difference]: With dead ends: 6049 [2022-01-17 23:27:50,223 INFO L226 Difference]: Without dead ends: 6049 [2022-01-17 23:27:50,224 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=549, Invalid=1707, Unknown=0, NotChecked=0, Total=2256 [2022-01-17 23:27:50,224 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 809 mSDsluCounter, 2947 mSDsCounter, 0 mSdLazyCounter, 1383 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 809 SdHoareTripleChecker+Valid, 3025 SdHoareTripleChecker+Invalid, 1440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:50,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [809 Valid, 3025 Invalid, 1440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1383 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:27:50,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6049 states. [2022-01-17 23:27:50,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6049 to 3372. [2022-01-17 23:27:50,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3372 states, 3370 states have (on average 2.6792284866468843) internal successors, (9029), 3371 states have internal predecessors, (9029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:50,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3372 states to 3372 states and 9029 transitions. [2022-01-17 23:27:50,285 INFO L78 Accepts]: Start accepts. Automaton has 3372 states and 9029 transitions. Word has length 106 [2022-01-17 23:27:50,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:50,285 INFO L470 AbstractCegarLoop]: Abstraction has 3372 states and 9029 transitions. [2022-01-17 23:27:50,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:50,286 INFO L276 IsEmpty]: Start isEmpty. Operand 3372 states and 9029 transitions. [2022-01-17 23:27:50,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:27:50,289 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:50,289 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:50,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2022-01-17 23:27:50,289 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)] === [2022-01-17 23:27:50,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:50,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1028809440, now seen corresponding path program 121 times [2022-01-17 23:27:50,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:50,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379650321] [2022-01-17 23:27:50,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:50,290 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:50,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:50,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:50,811 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:50,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379650321] [2022-01-17 23:27:50,811 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379650321] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:50,811 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:50,811 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:27:50,811 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315179330] [2022-01-17 23:27:50,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:50,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:27:50,811 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:50,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:27:50,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:27:50,812 INFO L87 Difference]: Start difference. First operand 3372 states and 9029 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:53,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:53,129 INFO L93 Difference]: Finished difference Result 6250 states and 15866 transitions. [2022-01-17 23:27:53,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:27:53,129 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:27:53,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:53,137 INFO L225 Difference]: With dead ends: 6250 [2022-01-17 23:27:53,137 INFO L226 Difference]: Without dead ends: 6250 [2022-01-17 23:27:53,138 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=517, Invalid=1645, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:27:53,138 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 794 mSDsluCounter, 3063 mSDsCounter, 0 mSdLazyCounter, 1470 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 794 SdHoareTripleChecker+Valid, 3116 SdHoareTripleChecker+Invalid, 1518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:53,138 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [794 Valid, 3116 Invalid, 1518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1470 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:27:53,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6250 states. [2022-01-17 23:27:53,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6250 to 3374. [2022-01-17 23:27:53,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3374 states, 3372 states have (on average 2.6791221826809015) internal successors, (9034), 3373 states have internal predecessors, (9034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:53,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3374 states to 3374 states and 9034 transitions. [2022-01-17 23:27:53,210 INFO L78 Accepts]: Start accepts. Automaton has 3374 states and 9034 transitions. Word has length 106 [2022-01-17 23:27:53,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:53,210 INFO L470 AbstractCegarLoop]: Abstraction has 3374 states and 9034 transitions. [2022-01-17 23:27:53,210 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:53,211 INFO L276 IsEmpty]: Start isEmpty. Operand 3374 states and 9034 transitions. [2022-01-17 23:27:53,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:27:53,213 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:53,214 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:53,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2022-01-17 23:27:53,214 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)] === [2022-01-17 23:27:53,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:53,214 INFO L85 PathProgramCache]: Analyzing trace with hash -482302830, now seen corresponding path program 122 times [2022-01-17 23:27:53,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:53,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971918931] [2022-01-17 23:27:53,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:53,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:53,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:53,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:53,717 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:53,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971918931] [2022-01-17 23:27:53,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971918931] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:53,717 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:53,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:27:53,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129678467] [2022-01-17 23:27:53,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:53,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:27:53,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:53,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:27:53,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:27:53,718 INFO L87 Difference]: Start difference. First operand 3374 states and 9034 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:56,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:56,051 INFO L93 Difference]: Finished difference Result 6076 states and 15521 transitions. [2022-01-17 23:27:56,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:27:56,051 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:27:56,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:56,059 INFO L225 Difference]: With dead ends: 6076 [2022-01-17 23:27:56,059 INFO L226 Difference]: Without dead ends: 6076 [2022-01-17 23:27:56,060 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=518, Invalid=1644, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:27:56,060 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 897 mSDsluCounter, 2999 mSDsCounter, 0 mSdLazyCounter, 1502 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 897 SdHoareTripleChecker+Valid, 3050 SdHoareTripleChecker+Invalid, 1555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:56,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [897 Valid, 3050 Invalid, 1555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1502 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:27:56,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6076 states. [2022-01-17 23:27:56,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6076 to 3360. [2022-01-17 23:27:56,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3360 states, 3358 states have (on average 2.679868969624777) internal successors, (8999), 3359 states have internal predecessors, (8999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:56,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3360 states to 3360 states and 8999 transitions. [2022-01-17 23:27:56,120 INFO L78 Accepts]: Start accepts. Automaton has 3360 states and 8999 transitions. Word has length 106 [2022-01-17 23:27:56,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:56,120 INFO L470 AbstractCegarLoop]: Abstraction has 3360 states and 8999 transitions. [2022-01-17 23:27:56,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:56,120 INFO L276 IsEmpty]: Start isEmpty. Operand 3360 states and 8999 transitions. [2022-01-17 23:27:56,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:27:56,123 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:56,123 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:56,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2022-01-17 23:27:56,124 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)] === [2022-01-17 23:27:56,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:56,124 INFO L85 PathProgramCache]: Analyzing trace with hash -564514034, now seen corresponding path program 123 times [2022-01-17 23:27:56,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:56,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068732909] [2022-01-17 23:27:56,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:56,125 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:56,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:56,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:56,652 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:56,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068732909] [2022-01-17 23:27:56,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068732909] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:56,652 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:56,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:27:56,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936639956] [2022-01-17 23:27:56,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:56,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:27:56,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:56,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:27:56,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:27:56,653 INFO L87 Difference]: Start difference. First operand 3360 states and 8999 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:59,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:59,210 INFO L93 Difference]: Finished difference Result 6118 states and 15626 transitions. [2022-01-17 23:27:59,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-17 23:27:59,210 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:27:59,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:59,217 INFO L225 Difference]: With dead ends: 6118 [2022-01-17 23:27:59,217 INFO L226 Difference]: Without dead ends: 6118 [2022-01-17 23:27:59,217 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=580, Invalid=1772, Unknown=0, NotChecked=0, Total=2352 [2022-01-17 23:27:59,217 INFO L933 BasicCegarLoop]: 246 mSDtfsCounter, 822 mSDsluCounter, 2950 mSDsCounter, 0 mSdLazyCounter, 1445 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 822 SdHoareTripleChecker+Valid, 3036 SdHoareTripleChecker+Invalid, 1513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:59,217 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [822 Valid, 3036 Invalid, 1513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 1445 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:27:59,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6118 states. [2022-01-17 23:27:59,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6118 to 3362. [2022-01-17 23:27:59,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3362 states, 3360 states have (on average 2.6797619047619046) internal successors, (9004), 3361 states have internal predecessors, (9004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:59,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3362 states to 3362 states and 9004 transitions. [2022-01-17 23:27:59,268 INFO L78 Accepts]: Start accepts. Automaton has 3362 states and 9004 transitions. Word has length 106 [2022-01-17 23:27:59,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:59,269 INFO L470 AbstractCegarLoop]: Abstraction has 3362 states and 9004 transitions. [2022-01-17 23:27:59,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:59,269 INFO L276 IsEmpty]: Start isEmpty. Operand 3362 states and 9004 transitions. [2022-01-17 23:27:59,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:27:59,272 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:59,272 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:59,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2022-01-17 23:27:59,273 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)] === [2022-01-17 23:27:59,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:59,273 INFO L85 PathProgramCache]: Analyzing trace with hash 463776450, now seen corresponding path program 124 times [2022-01-17 23:27:59,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:59,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304889312] [2022-01-17 23:27:59,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:59,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:59,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:59,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:59,791 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:59,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304889312] [2022-01-17 23:27:59,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304889312] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:59,791 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:59,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:27:59,791 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318810222] [2022-01-17 23:27:59,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:59,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:27:59,791 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:59,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:27:59,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:27:59,792 INFO L87 Difference]: Start difference. First operand 3362 states and 9004 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:02,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:02,254 INFO L93 Difference]: Finished difference Result 6358 states and 16109 transitions. [2022-01-17 23:28:02,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-17 23:28:02,254 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:28:02,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:02,261 INFO L225 Difference]: With dead ends: 6358 [2022-01-17 23:28:02,262 INFO L226 Difference]: Without dead ends: 6358 [2022-01-17 23:28:02,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=549, Invalid=1707, Unknown=0, NotChecked=0, Total=2256 [2022-01-17 23:28:02,262 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 808 mSDsluCounter, 3045 mSDsCounter, 0 mSdLazyCounter, 1504 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 808 SdHoareTripleChecker+Valid, 3102 SdHoareTripleChecker+Invalid, 1560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:02,262 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [808 Valid, 3102 Invalid, 1560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1504 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:28:02,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6358 states. [2022-01-17 23:28:02,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6358 to 3366. [2022-01-17 23:28:02,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3366 states, 3364 states have (on average 2.6795481569560047) internal successors, (9014), 3365 states have internal predecessors, (9014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:02,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3366 states to 3366 states and 9014 transitions. [2022-01-17 23:28:02,315 INFO L78 Accepts]: Start accepts. Automaton has 3366 states and 9014 transitions. Word has length 106 [2022-01-17 23:28:02,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:02,315 INFO L470 AbstractCegarLoop]: Abstraction has 3366 states and 9014 transitions. [2022-01-17 23:28:02,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:02,315 INFO L276 IsEmpty]: Start isEmpty. Operand 3366 states and 9014 transitions. [2022-01-17 23:28:02,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:28:02,319 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:02,319 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:02,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2022-01-17 23:28:02,319 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)] === [2022-01-17 23:28:02,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:02,320 INFO L85 PathProgramCache]: Analyzing trace with hash -64288672, now seen corresponding path program 125 times [2022-01-17 23:28:02,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:02,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030090553] [2022-01-17 23:28:02,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:02,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:02,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:02,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:02,838 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:02,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030090553] [2022-01-17 23:28:02,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030090553] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:02,839 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:02,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:28:02,839 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395639370] [2022-01-17 23:28:02,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:02,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:28:02,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:02,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:28:02,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:28:02,840 INFO L87 Difference]: Start difference. First operand 3366 states and 9014 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:05,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:05,078 INFO L93 Difference]: Finished difference Result 6307 states and 15995 transitions. [2022-01-17 23:28:05,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:28:05,079 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:28:05,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:05,086 INFO L225 Difference]: With dead ends: 6307 [2022-01-17 23:28:05,086 INFO L226 Difference]: Without dead ends: 6307 [2022-01-17 23:28:05,086 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=517, Invalid=1645, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:28:05,086 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 857 mSDsluCounter, 2863 mSDsCounter, 0 mSdLazyCounter, 1292 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 857 SdHoareTripleChecker+Valid, 2925 SdHoareTripleChecker+Invalid, 1355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:05,087 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [857 Valid, 2925 Invalid, 1355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1292 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:28:05,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6307 states. [2022-01-17 23:28:05,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6307 to 3368. [2022-01-17 23:28:05,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3368 states, 3366 states have (on average 2.6794414735591205) internal successors, (9019), 3367 states have internal predecessors, (9019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:05,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3368 states to 3368 states and 9019 transitions. [2022-01-17 23:28:05,139 INFO L78 Accepts]: Start accepts. Automaton has 3368 states and 9019 transitions. Word has length 106 [2022-01-17 23:28:05,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:05,139 INFO L470 AbstractCegarLoop]: Abstraction has 3368 states and 9019 transitions. [2022-01-17 23:28:05,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:05,139 INFO L276 IsEmpty]: Start isEmpty. Operand 3368 states and 9019 transitions. [2022-01-17 23:28:05,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:28:05,143 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:05,143 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:05,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2022-01-17 23:28:05,143 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)] === [2022-01-17 23:28:05,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:05,143 INFO L85 PathProgramCache]: Analyzing trace with hash 482217938, now seen corresponding path program 126 times [2022-01-17 23:28:05,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:05,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312134919] [2022-01-17 23:28:05,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:05,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:05,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:05,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:05,648 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:05,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312134919] [2022-01-17 23:28:05,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312134919] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:05,648 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:05,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:28:05,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634679] [2022-01-17 23:28:05,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:05,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:28:05,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:05,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:28:05,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:28:05,649 INFO L87 Difference]: Start difference. First operand 3368 states and 9019 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:07,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:07,969 INFO L93 Difference]: Finished difference Result 6133 states and 15650 transitions. [2022-01-17 23:28:07,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:28:07,969 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:28:07,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:07,976 INFO L225 Difference]: With dead ends: 6133 [2022-01-17 23:28:07,976 INFO L226 Difference]: Without dead ends: 6133 [2022-01-17 23:28:07,976 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=518, Invalid=1644, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:28:07,976 INFO L933 BasicCegarLoop]: 256 mSDtfsCounter, 813 mSDsluCounter, 3220 mSDsCounter, 0 mSdLazyCounter, 1559 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 813 SdHoareTripleChecker+Valid, 3268 SdHoareTripleChecker+Invalid, 1613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:07,976 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [813 Valid, 3268 Invalid, 1613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1559 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:28:07,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6133 states. [2022-01-17 23:28:08,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6133 to 3356. [2022-01-17 23:28:08,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3356 states, 3354 states have (on average 2.680083482409064) internal successors, (8989), 3355 states have internal predecessors, (8989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:08,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3356 states to 3356 states and 8989 transitions. [2022-01-17 23:28:08,025 INFO L78 Accepts]: Start accepts. Automaton has 3356 states and 8989 transitions. Word has length 106 [2022-01-17 23:28:08,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:08,025 INFO L470 AbstractCegarLoop]: Abstraction has 3356 states and 8989 transitions. [2022-01-17 23:28:08,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:08,025 INFO L276 IsEmpty]: Start isEmpty. Operand 3356 states and 8989 transitions. [2022-01-17 23:28:08,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:28:08,029 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:08,029 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:08,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2022-01-17 23:28:08,029 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)] === [2022-01-17 23:28:08,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:08,029 INFO L85 PathProgramCache]: Analyzing trace with hash 431111516, now seen corresponding path program 127 times [2022-01-17 23:28:08,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:08,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936853483] [2022-01-17 23:28:08,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:08,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:08,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:08,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:08,553 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:08,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936853483] [2022-01-17 23:28:08,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936853483] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:08,554 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:08,554 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:28:08,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191394426] [2022-01-17 23:28:08,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:08,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:28:08,554 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:08,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:28:08,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:28:08,555 INFO L87 Difference]: Start difference. First operand 3356 states and 8989 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:11,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:11,238 INFO L93 Difference]: Finished difference Result 5799 states and 14938 transitions. [2022-01-17 23:28:11,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-17 23:28:11,239 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:28:11,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:11,245 INFO L225 Difference]: With dead ends: 5799 [2022-01-17 23:28:11,246 INFO L226 Difference]: Without dead ends: 5799 [2022-01-17 23:28:11,246 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=610, Invalid=1840, Unknown=0, NotChecked=0, Total=2450 [2022-01-17 23:28:11,246 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 795 mSDsluCounter, 2881 mSDsCounter, 0 mSdLazyCounter, 1455 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 795 SdHoareTripleChecker+Valid, 2973 SdHoareTripleChecker+Invalid, 1517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:11,246 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [795 Valid, 2973 Invalid, 1517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1455 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:28:11,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5799 states. [2022-01-17 23:28:11,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5799 to 3358. [2022-01-17 23:28:11,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3358 states, 3356 states have (on average 2.6799761620977356) internal successors, (8994), 3357 states have internal predecessors, (8994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:11,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3358 states to 3358 states and 8994 transitions. [2022-01-17 23:28:11,298 INFO L78 Accepts]: Start accepts. Automaton has 3358 states and 8994 transitions. Word has length 106 [2022-01-17 23:28:11,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:11,298 INFO L470 AbstractCegarLoop]: Abstraction has 3358 states and 8994 transitions. [2022-01-17 23:28:11,298 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:11,298 INFO L276 IsEmpty]: Start isEmpty. Operand 3358 states and 8994 transitions. [2022-01-17 23:28:11,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:28:11,302 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:11,302 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:11,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2022-01-17 23:28:11,302 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)] === [2022-01-17 23:28:11,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:11,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1492239290, now seen corresponding path program 128 times [2022-01-17 23:28:11,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:11,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286948828] [2022-01-17 23:28:11,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:11,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:11,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:11,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:11,835 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:11,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286948828] [2022-01-17 23:28:11,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286948828] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:11,835 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:11,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:28:11,835 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873141611] [2022-01-17 23:28:11,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:11,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:28:11,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:11,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:28:11,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:28:11,836 INFO L87 Difference]: Start difference. First operand 3358 states and 8994 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:14,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:14,421 INFO L93 Difference]: Finished difference Result 6084 states and 15520 transitions. [2022-01-17 23:28:14,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-17 23:28:14,421 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:28:14,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:14,429 INFO L225 Difference]: With dead ends: 6084 [2022-01-17 23:28:14,429 INFO L226 Difference]: Without dead ends: 6084 [2022-01-17 23:28:14,430 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=580, Invalid=1772, Unknown=0, NotChecked=0, Total=2352 [2022-01-17 23:28:14,430 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 837 mSDsluCounter, 2959 mSDsCounter, 0 mSdLazyCounter, 1463 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 837 SdHoareTripleChecker+Valid, 3021 SdHoareTripleChecker+Invalid, 1523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:14,430 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [837 Valid, 3021 Invalid, 1523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1463 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:28:14,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6084 states. [2022-01-17 23:28:14,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6084 to 3360. [2022-01-17 23:28:14,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3360 states, 3358 states have (on average 2.679868969624777) internal successors, (8999), 3359 states have internal predecessors, (8999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:14,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3360 states to 3360 states and 8999 transitions. [2022-01-17 23:28:14,483 INFO L78 Accepts]: Start accepts. Automaton has 3360 states and 8999 transitions. Word has length 106 [2022-01-17 23:28:14,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:14,484 INFO L470 AbstractCegarLoop]: Abstraction has 3360 states and 8999 transitions. [2022-01-17 23:28:14,484 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:14,484 INFO L276 IsEmpty]: Start isEmpty. Operand 3360 states and 8999 transitions. [2022-01-17 23:28:14,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:28:14,487 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:14,487 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:14,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2022-01-17 23:28:14,487 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)] === [2022-01-17 23:28:14,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:14,488 INFO L85 PathProgramCache]: Analyzing trace with hash -463948806, now seen corresponding path program 129 times [2022-01-17 23:28:14,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:14,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202031308] [2022-01-17 23:28:14,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:14,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:14,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:15,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:15,025 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:15,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202031308] [2022-01-17 23:28:15,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202031308] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:15,025 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:15,026 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:28:15,026 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978767791] [2022-01-17 23:28:15,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:15,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:28:15,026 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:15,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:28:15,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:28:15,026 INFO L87 Difference]: Start difference. First operand 3360 states and 8999 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:17,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:17,589 INFO L93 Difference]: Finished difference Result 6033 states and 15406 transitions. [2022-01-17 23:28:17,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-17 23:28:17,590 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:28:17,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:17,597 INFO L225 Difference]: With dead ends: 6033 [2022-01-17 23:28:17,598 INFO L226 Difference]: Without dead ends: 6033 [2022-01-17 23:28:17,598 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=549, Invalid=1707, Unknown=0, NotChecked=0, Total=2256 [2022-01-17 23:28:17,598 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 832 mSDsluCounter, 3200 mSDsCounter, 0 mSdLazyCounter, 1709 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 832 SdHoareTripleChecker+Valid, 3241 SdHoareTripleChecker+Invalid, 1757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:17,598 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [832 Valid, 3241 Invalid, 1757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1709 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:28:17,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6033 states. [2022-01-17 23:28:17,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6033 to 3364. [2022-01-17 23:28:17,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3364 states, 3362 states have (on average 2.67965496728138) internal successors, (9009), 3363 states have internal predecessors, (9009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:17,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3364 states to 3364 states and 9009 transitions. [2022-01-17 23:28:17,652 INFO L78 Accepts]: Start accepts. Automaton has 3364 states and 9009 transitions. Word has length 106 [2022-01-17 23:28:17,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:17,653 INFO L470 AbstractCegarLoop]: Abstraction has 3364 states and 9009 transitions. [2022-01-17 23:28:17,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:17,653 INFO L276 IsEmpty]: Start isEmpty. Operand 3364 states and 9009 transitions. [2022-01-17 23:28:17,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:28:17,656 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:17,656 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:17,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2022-01-17 23:28:17,656 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)] === [2022-01-17 23:28:17,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:17,657 INFO L85 PathProgramCache]: Analyzing trace with hash -992013928, now seen corresponding path program 130 times [2022-01-17 23:28:17,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:17,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400520577] [2022-01-17 23:28:17,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:17,657 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:17,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:18,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:18,187 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:18,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400520577] [2022-01-17 23:28:18,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400520577] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:18,187 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:18,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:28:18,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410301272] [2022-01-17 23:28:18,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:18,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:28:18,187 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:18,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:28:18,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:28:18,188 INFO L87 Difference]: Start difference. First operand 3364 states and 9009 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:20,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:20,406 INFO L93 Difference]: Finished difference Result 5982 states and 15292 transitions. [2022-01-17 23:28:20,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:28:20,407 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:28:20,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:20,414 INFO L225 Difference]: With dead ends: 5982 [2022-01-17 23:28:20,414 INFO L226 Difference]: Without dead ends: 5982 [2022-01-17 23:28:20,415 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=517, Invalid=1645, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:28:20,415 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 882 mSDsluCounter, 2712 mSDsCounter, 0 mSdLazyCounter, 1218 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 882 SdHoareTripleChecker+Valid, 2777 SdHoareTripleChecker+Invalid, 1272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:20,415 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [882 Valid, 2777 Invalid, 1272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1218 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:28:20,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5982 states. [2022-01-17 23:28:20,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5982 to 3366. [2022-01-17 23:28:20,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3366 states, 3364 states have (on average 2.6795481569560047) internal successors, (9014), 3365 states have internal predecessors, (9014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:20,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3366 states to 3366 states and 9014 transitions. [2022-01-17 23:28:20,470 INFO L78 Accepts]: Start accepts. Automaton has 3366 states and 9014 transitions. Word has length 106 [2022-01-17 23:28:20,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:20,471 INFO L470 AbstractCegarLoop]: Abstraction has 3366 states and 9014 transitions. [2022-01-17 23:28:20,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:20,471 INFO L276 IsEmpty]: Start isEmpty. Operand 3366 states and 9014 transitions. [2022-01-17 23:28:20,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:28:20,474 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:20,475 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:20,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2022-01-17 23:28:20,475 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)] === [2022-01-17 23:28:20,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:20,475 INFO L85 PathProgramCache]: Analyzing trace with hash -445507318, now seen corresponding path program 131 times [2022-01-17 23:28:20,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:20,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535275697] [2022-01-17 23:28:20,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:20,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:20,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:20,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:20,994 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:20,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535275697] [2022-01-17 23:28:20,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535275697] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:20,995 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:20,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:28:20,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957624275] [2022-01-17 23:28:20,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:20,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:28:20,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:20,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:28:20,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:28:20,996 INFO L87 Difference]: Start difference. First operand 3366 states and 9014 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:23,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:23,246 INFO L93 Difference]: Finished difference Result 5808 states and 14947 transitions. [2022-01-17 23:28:23,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:28:23,247 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:28:23,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:23,254 INFO L225 Difference]: With dead ends: 5808 [2022-01-17 23:28:23,254 INFO L226 Difference]: Without dead ends: 5808 [2022-01-17 23:28:23,255 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=518, Invalid=1644, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:28:23,255 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 860 mSDsluCounter, 2941 mSDsCounter, 0 mSdLazyCounter, 1325 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 860 SdHoareTripleChecker+Valid, 3002 SdHoareTripleChecker+Invalid, 1389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:23,255 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [860 Valid, 3002 Invalid, 1389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1325 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:28:23,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5808 states. [2022-01-17 23:28:23,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5808 to 3356. [2022-01-17 23:28:23,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3356 states, 3354 states have (on average 2.680083482409064) internal successors, (8989), 3355 states have internal predecessors, (8989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:23,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3356 states to 3356 states and 8989 transitions. [2022-01-17 23:28:23,344 INFO L78 Accepts]: Start accepts. Automaton has 3356 states and 8989 transitions. Word has length 106 [2022-01-17 23:28:23,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:23,345 INFO L470 AbstractCegarLoop]: Abstraction has 3356 states and 8989 transitions. [2022-01-17 23:28:23,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:23,345 INFO L276 IsEmpty]: Start isEmpty. Operand 3356 states and 8989 transitions. [2022-01-17 23:28:23,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:28:23,348 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:23,348 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:23,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2022-01-17 23:28:23,348 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)] === [2022-01-17 23:28:23,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:23,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1306335454, now seen corresponding path program 132 times [2022-01-17 23:28:23,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:23,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475283759] [2022-01-17 23:28:23,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:23,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:23,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:23,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:23,879 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:23,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475283759] [2022-01-17 23:28:23,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475283759] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:23,879 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:23,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:28:23,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788664335] [2022-01-17 23:28:23,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:23,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:28:23,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:23,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:28:23,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=522, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:28:23,880 INFO L87 Difference]: Start difference. First operand 3356 states and 8989 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:28,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:28,152 INFO L93 Difference]: Finished difference Result 6141 states and 15864 transitions. [2022-01-17 23:28:28,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-17 23:28:28,153 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:28:28,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:28,160 INFO L225 Difference]: With dead ends: 6141 [2022-01-17 23:28:28,160 INFO L226 Difference]: Without dead ends: 6141 [2022-01-17 23:28:28,161 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 376 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=1000, Invalid=2422, Unknown=0, NotChecked=0, Total=3422 [2022-01-17 23:28:28,161 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 1200 mSDsluCounter, 3821 mSDsCounter, 0 mSdLazyCounter, 1726 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1200 SdHoareTripleChecker+Valid, 4102 SdHoareTripleChecker+Invalid, 1838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 1726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:28,161 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1200 Valid, 4102 Invalid, 1838 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 1726 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-17 23:28:28,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6141 states. [2022-01-17 23:28:28,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6141 to 3610. [2022-01-17 23:28:28,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3610 states, 3608 states have (on average 2.702050997782705) internal successors, (9749), 3609 states have internal predecessors, (9749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:28,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3610 states to 3610 states and 9749 transitions. [2022-01-17 23:28:28,213 INFO L78 Accepts]: Start accepts. Automaton has 3610 states and 9749 transitions. Word has length 106 [2022-01-17 23:28:28,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:28,213 INFO L470 AbstractCegarLoop]: Abstraction has 3610 states and 9749 transitions. [2022-01-17 23:28:28,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:28,213 INFO L276 IsEmpty]: Start isEmpty. Operand 3610 states and 9749 transitions. [2022-01-17 23:28:28,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:28:28,217 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:28,217 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:28,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2022-01-17 23:28:28,217 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)] === [2022-01-17 23:28:28,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:28,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1048688592, now seen corresponding path program 133 times [2022-01-17 23:28:28,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:28,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901469627] [2022-01-17 23:28:28,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:28,218 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:28,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:28,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:28,713 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:28,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901469627] [2022-01-17 23:28:28,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901469627] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:28,713 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:28,713 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:28:28,713 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102209535] [2022-01-17 23:28:28,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:28,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:28:28,714 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:28,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:28:28,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=526, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:28:28,714 INFO L87 Difference]: Start difference. First operand 3610 states and 9749 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:31,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:31,354 INFO L93 Difference]: Finished difference Result 4984 states and 13101 transitions. [2022-01-17 23:28:31,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-17 23:28:31,355 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:28:31,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:31,361 INFO L225 Difference]: With dead ends: 4984 [2022-01-17 23:28:31,361 INFO L226 Difference]: Without dead ends: 4984 [2022-01-17 23:28:31,362 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=543, Invalid=1437, Unknown=0, NotChecked=0, Total=1980 [2022-01-17 23:28:31,362 INFO L933 BasicCegarLoop]: 336 mSDtfsCounter, 960 mSDsluCounter, 3482 mSDsCounter, 0 mSdLazyCounter, 1330 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 960 SdHoareTripleChecker+Valid, 3698 SdHoareTripleChecker+Invalid, 1390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:31,362 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [960 Valid, 3698 Invalid, 1390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1330 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:28:31,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4984 states. [2022-01-17 23:28:31,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4984 to 3568. [2022-01-17 23:28:31,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3568 states, 3566 states have (on average 2.6985417835109367) internal successors, (9623), 3567 states have internal predecessors, (9623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:31,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3568 states to 3568 states and 9623 transitions. [2022-01-17 23:28:31,407 INFO L78 Accepts]: Start accepts. Automaton has 3568 states and 9623 transitions. Word has length 106 [2022-01-17 23:28:31,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:31,407 INFO L470 AbstractCegarLoop]: Abstraction has 3568 states and 9623 transitions. [2022-01-17 23:28:31,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:31,407 INFO L276 IsEmpty]: Start isEmpty. Operand 3568 states and 9623 transitions. [2022-01-17 23:28:31,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:28:31,411 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:31,411 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:31,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2022-01-17 23:28:31,411 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)] === [2022-01-17 23:28:31,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:31,411 INFO L85 PathProgramCache]: Analyzing trace with hash -629028366, now seen corresponding path program 134 times [2022-01-17 23:28:31,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:31,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873719520] [2022-01-17 23:28:31,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:31,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:31,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:31,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:31,999 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:31,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873719520] [2022-01-17 23:28:31,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873719520] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:31,999 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:31,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:28:31,999 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031424590] [2022-01-17 23:28:31,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:31,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:28:31,999 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:32,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:28:32,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=527, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:28:32,000 INFO L87 Difference]: Start difference. First operand 3568 states and 9623 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:36,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:36,793 INFO L93 Difference]: Finished difference Result 6502 states and 16662 transitions. [2022-01-17 23:28:36,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-17 23:28:36,794 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:28:36,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:36,802 INFO L225 Difference]: With dead ends: 6502 [2022-01-17 23:28:36,802 INFO L226 Difference]: Without dead ends: 6502 [2022-01-17 23:28:36,802 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 432 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=975, Invalid=2565, Unknown=0, NotChecked=0, Total=3540 [2022-01-17 23:28:36,802 INFO L933 BasicCegarLoop]: 400 mSDtfsCounter, 1174 mSDsluCounter, 4600 mSDsCounter, 0 mSdLazyCounter, 2138 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1174 SdHoareTripleChecker+Valid, 4855 SdHoareTripleChecker+Invalid, 2239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 2138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:36,802 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1174 Valid, 4855 Invalid, 2239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 2138 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-17 23:28:36,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6502 states. [2022-01-17 23:28:36,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6502 to 3526. [2022-01-17 23:28:36,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3526 states, 3524 states have (on average 2.6949489216799094) internal successors, (9497), 3525 states have internal predecessors, (9497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:36,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3526 states to 3526 states and 9497 transitions. [2022-01-17 23:28:36,853 INFO L78 Accepts]: Start accepts. Automaton has 3526 states and 9497 transitions. Word has length 106 [2022-01-17 23:28:36,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:36,854 INFO L470 AbstractCegarLoop]: Abstraction has 3526 states and 9497 transitions. [2022-01-17 23:28:36,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:36,854 INFO L276 IsEmpty]: Start isEmpty. Operand 3526 states and 9497 transitions. [2022-01-17 23:28:36,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:28:36,857 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:36,857 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:36,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2022-01-17 23:28:36,857 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)] === [2022-01-17 23:28:36,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:36,858 INFO L85 PathProgramCache]: Analyzing trace with hash -2134656560, now seen corresponding path program 135 times [2022-01-17 23:28:36,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:36,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106729350] [2022-01-17 23:28:36,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:36,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:36,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:37,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:37,434 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:37,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106729350] [2022-01-17 23:28:37,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106729350] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:37,435 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:37,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:28:37,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13451263] [2022-01-17 23:28:37,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:37,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:28:37,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:37,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:28:37,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:28:37,436 INFO L87 Difference]: Start difference. First operand 3526 states and 9497 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:41,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:41,873 INFO L93 Difference]: Finished difference Result 6576 states and 16829 transitions. [2022-01-17 23:28:41,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-17 23:28:41,873 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:28:41,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:41,880 INFO L225 Difference]: With dead ends: 6576 [2022-01-17 23:28:41,880 INFO L226 Difference]: Without dead ends: 6576 [2022-01-17 23:28:41,881 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=925, Invalid=2497, Unknown=0, NotChecked=0, Total=3422 [2022-01-17 23:28:41,881 INFO L933 BasicCegarLoop]: 379 mSDtfsCounter, 1245 mSDsluCounter, 4229 mSDsCounter, 0 mSdLazyCounter, 1988 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1245 SdHoareTripleChecker+Valid, 4467 SdHoareTripleChecker+Invalid, 2101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:41,881 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1245 Valid, 4467 Invalid, 2101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1988 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-17 23:28:41,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6576 states. [2022-01-17 23:28:41,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6576 to 3442. [2022-01-17 23:28:41,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3442 states, 3440 states have (on average 2.6875) internal successors, (9245), 3441 states have internal predecessors, (9245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:41,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3442 states to 3442 states and 9245 transitions. [2022-01-17 23:28:41,928 INFO L78 Accepts]: Start accepts. Automaton has 3442 states and 9245 transitions. Word has length 106 [2022-01-17 23:28:41,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:41,928 INFO L470 AbstractCegarLoop]: Abstraction has 3442 states and 9245 transitions. [2022-01-17 23:28:41,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:41,929 INFO L276 IsEmpty]: Start isEmpty. Operand 3442 states and 9245 transitions. [2022-01-17 23:28:41,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:28:41,932 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:41,932 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:41,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2022-01-17 23:28:41,932 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)] === [2022-01-17 23:28:41,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:41,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1467233328, now seen corresponding path program 136 times [2022-01-17 23:28:41,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:41,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033052449] [2022-01-17 23:28:41,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:41,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:41,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:42,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:42,503 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:42,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033052449] [2022-01-17 23:28:42,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033052449] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:42,504 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:42,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:28:42,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377421342] [2022-01-17 23:28:42,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:42,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:28:42,504 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:42,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:28:42,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:28:42,505 INFO L87 Difference]: Start difference. First operand 3442 states and 9245 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:46,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:46,673 INFO L93 Difference]: Finished difference Result 6661 states and 17019 transitions. [2022-01-17 23:28:46,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-17 23:28:46,673 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:28:46,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:46,681 INFO L225 Difference]: With dead ends: 6661 [2022-01-17 23:28:46,681 INFO L226 Difference]: Without dead ends: 6661 [2022-01-17 23:28:46,681 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 410 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=877, Invalid=2429, Unknown=0, NotChecked=0, Total=3306 [2022-01-17 23:28:46,682 INFO L933 BasicCegarLoop]: 359 mSDtfsCounter, 1120 mSDsluCounter, 4053 mSDsCounter, 0 mSdLazyCounter, 1890 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1120 SdHoareTripleChecker+Valid, 4273 SdHoareTripleChecker+Invalid, 1996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 1890 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:46,682 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1120 Valid, 4273 Invalid, 1996 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 1890 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-17 23:28:46,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6661 states. [2022-01-17 23:28:46,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6661 to 3400. [2022-01-17 23:28:46,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3400 states, 3398 states have (on average 2.683637433784579) internal successors, (9119), 3399 states have internal predecessors, (9119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:46,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3400 states to 3400 states and 9119 transitions. [2022-01-17 23:28:46,729 INFO L78 Accepts]: Start accepts. Automaton has 3400 states and 9119 transitions. Word has length 106 [2022-01-17 23:28:46,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:46,729 INFO L470 AbstractCegarLoop]: Abstraction has 3400 states and 9119 transitions. [2022-01-17 23:28:46,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:46,730 INFO L276 IsEmpty]: Start isEmpty. Operand 3400 states and 9119 transitions. [2022-01-17 23:28:46,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:28:46,733 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:46,733 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:46,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2022-01-17 23:28:46,733 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)] === [2022-01-17 23:28:46,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:46,733 INFO L85 PathProgramCache]: Analyzing trace with hash 580625906, now seen corresponding path program 137 times [2022-01-17 23:28:46,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:46,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573616151] [2022-01-17 23:28:46,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:46,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:46,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:47,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:47,301 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:47,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573616151] [2022-01-17 23:28:47,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573616151] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:47,301 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:47,301 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:28:47,301 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412393468] [2022-01-17 23:28:47,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:47,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:28:47,302 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:47,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:28:47,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:28:47,302 INFO L87 Difference]: Start difference. First operand 3400 states and 9119 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:51,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:51,164 INFO L93 Difference]: Finished difference Result 6329 states and 16316 transitions. [2022-01-17 23:28:51,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-17 23:28:51,165 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:28:51,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:51,173 INFO L225 Difference]: With dead ends: 6329 [2022-01-17 23:28:51,173 INFO L226 Difference]: Without dead ends: 6329 [2022-01-17 23:28:51,173 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 396 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=831, Invalid=2361, Unknown=0, NotChecked=0, Total=3192 [2022-01-17 23:28:51,173 INFO L933 BasicCegarLoop]: 337 mSDtfsCounter, 1192 mSDsluCounter, 3615 mSDsCounter, 0 mSdLazyCounter, 1718 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1192 SdHoareTripleChecker+Valid, 3810 SdHoareTripleChecker+Invalid, 1835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 1718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:51,173 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1192 Valid, 3810 Invalid, 1835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 1718 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-17 23:28:51,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6329 states. [2022-01-17 23:28:51,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6329 to 3356. [2022-01-17 23:28:51,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3356 states, 3354 states have (on average 2.680083482409064) internal successors, (8989), 3355 states have internal predecessors, (8989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:51,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3356 states to 3356 states and 8989 transitions. [2022-01-17 23:28:51,220 INFO L78 Accepts]: Start accepts. Automaton has 3356 states and 8989 transitions. Word has length 106 [2022-01-17 23:28:51,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:51,220 INFO L470 AbstractCegarLoop]: Abstraction has 3356 states and 8989 transitions. [2022-01-17 23:28:51,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:51,220 INFO L276 IsEmpty]: Start isEmpty. Operand 3356 states and 8989 transitions. [2022-01-17 23:28:51,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:28:51,224 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:51,224 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:51,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2022-01-17 23:28:51,224 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)] === [2022-01-17 23:28:51,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:51,224 INFO L85 PathProgramCache]: Analyzing trace with hash -305259386, now seen corresponding path program 138 times [2022-01-17 23:28:51,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:51,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259159343] [2022-01-17 23:28:51,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:51,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:51,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:51,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:51,784 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:51,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259159343] [2022-01-17 23:28:51,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259159343] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:51,784 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:51,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:28:51,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931800442] [2022-01-17 23:28:51,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:51,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:28:51,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:51,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:28:51,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=523, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:28:51,785 INFO L87 Difference]: Start difference. First operand 3356 states and 8989 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:56,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:56,110 INFO L93 Difference]: Finished difference Result 8144 states and 21075 transitions. [2022-01-17 23:28:56,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-17 23:28:56,110 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:28:56,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:56,120 INFO L225 Difference]: With dead ends: 8144 [2022-01-17 23:28:56,120 INFO L226 Difference]: Without dead ends: 8144 [2022-01-17 23:28:56,120 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=945, Invalid=2247, Unknown=0, NotChecked=0, Total=3192 [2022-01-17 23:28:56,120 INFO L933 BasicCegarLoop]: 386 mSDtfsCounter, 1126 mSDsluCounter, 4457 mSDsCounter, 0 mSdLazyCounter, 2030 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1126 SdHoareTripleChecker+Valid, 4675 SdHoareTripleChecker+Invalid, 2112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 2030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:56,120 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1126 Valid, 4675 Invalid, 2112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 2030 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-17 23:28:56,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8144 states. [2022-01-17 23:28:56,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8144 to 3454. [2022-01-17 23:28:56,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3454 states, 3452 states have (on average 2.6891657010428736) internal successors, (9283), 3453 states have internal predecessors, (9283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:56,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3454 states to 3454 states and 9283 transitions. [2022-01-17 23:28:56,174 INFO L78 Accepts]: Start accepts. Automaton has 3454 states and 9283 transitions. Word has length 106 [2022-01-17 23:28:56,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:56,174 INFO L470 AbstractCegarLoop]: Abstraction has 3454 states and 9283 transitions. [2022-01-17 23:28:56,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:56,175 INFO L276 IsEmpty]: Start isEmpty. Operand 3454 states and 9283 transitions. [2022-01-17 23:28:56,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:28:56,178 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:56,178 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:56,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2022-01-17 23:28:56,178 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)] === [2022-01-17 23:28:56,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:56,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1379768534, now seen corresponding path program 139 times [2022-01-17 23:28:56,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:56,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761846988] [2022-01-17 23:28:56,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:56,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:56,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:56,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:56,748 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:56,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761846988] [2022-01-17 23:28:56,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761846988] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:56,748 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:56,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:28:56,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811501047] [2022-01-17 23:28:56,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:56,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:28:56,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:56,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:28:56,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=527, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:28:56,749 INFO L87 Difference]: Start difference. First operand 3454 states and 9283 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:01,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:01,464 INFO L93 Difference]: Finished difference Result 7868 states and 20378 transitions. [2022-01-17 23:29:01,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-17 23:29:01,464 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:29:01,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:01,472 INFO L225 Difference]: With dead ends: 7868 [2022-01-17 23:29:01,473 INFO L226 Difference]: Without dead ends: 7868 [2022-01-17 23:29:01,473 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=941, Invalid=2365, Unknown=0, NotChecked=0, Total=3306 [2022-01-17 23:29:01,473 INFO L933 BasicCegarLoop]: 386 mSDtfsCounter, 1135 mSDsluCounter, 4384 mSDsCounter, 0 mSdLazyCounter, 2020 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1135 SdHoareTripleChecker+Valid, 4597 SdHoareTripleChecker+Invalid, 2103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 2020 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:01,473 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1135 Valid, 4597 Invalid, 2103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 2020 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-17 23:29:01,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7868 states. [2022-01-17 23:29:01,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7868 to 3440. [2022-01-17 23:29:01,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3440 states, 3438 states have (on average 2.6878999418266436) internal successors, (9241), 3439 states have internal predecessors, (9241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:01,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3440 states to 3440 states and 9241 transitions. [2022-01-17 23:29:01,525 INFO L78 Accepts]: Start accepts. Automaton has 3440 states and 9241 transitions. Word has length 106 [2022-01-17 23:29:01,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:01,525 INFO L470 AbstractCegarLoop]: Abstraction has 3440 states and 9241 transitions. [2022-01-17 23:29:01,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:01,526 INFO L276 IsEmpty]: Start isEmpty. Operand 3440 states and 9241 transitions. [2022-01-17 23:29:01,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:29:01,529 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:01,529 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:01,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2022-01-17 23:29:01,529 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)] === [2022-01-17 23:29:01,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:01,530 INFO L85 PathProgramCache]: Analyzing trace with hash -297948424, now seen corresponding path program 140 times [2022-01-17 23:29:01,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:01,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989408601] [2022-01-17 23:29:01,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:01,530 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:01,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:02,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:02,019 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:02,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989408601] [2022-01-17 23:29:02,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989408601] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:02,019 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:02,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:29:02,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499483477] [2022-01-17 23:29:02,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:02,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:29:02,020 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:02,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:29:02,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:29:02,020 INFO L87 Difference]: Start difference. First operand 3440 states and 9241 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:04,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:04,702 INFO L93 Difference]: Finished difference Result 7604 states and 19813 transitions. [2022-01-17 23:29:04,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-17 23:29:04,702 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:29:04,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:04,710 INFO L225 Difference]: With dead ends: 7604 [2022-01-17 23:29:04,711 INFO L226 Difference]: Without dead ends: 7604 [2022-01-17 23:29:04,711 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=560, Invalid=1510, Unknown=0, NotChecked=0, Total=2070 [2022-01-17 23:29:04,711 INFO L933 BasicCegarLoop]: 339 mSDtfsCounter, 855 mSDsluCounter, 3659 mSDsCounter, 0 mSdLazyCounter, 1551 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 855 SdHoareTripleChecker+Valid, 3820 SdHoareTripleChecker+Invalid, 1586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:04,711 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [855 Valid, 3820 Invalid, 1586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1551 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:29:04,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7604 states. [2022-01-17 23:29:04,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7604 to 3426. [2022-01-17 23:29:04,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3426 states, 3424 states have (on average 2.6866238317757007) internal successors, (9199), 3425 states have internal predecessors, (9199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:04,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3426 states to 3426 states and 9199 transitions. [2022-01-17 23:29:04,765 INFO L78 Accepts]: Start accepts. Automaton has 3426 states and 9199 transitions. Word has length 106 [2022-01-17 23:29:04,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:04,765 INFO L470 AbstractCegarLoop]: Abstraction has 3426 states and 9199 transitions. [2022-01-17 23:29:04,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:04,765 INFO L276 IsEmpty]: Start isEmpty. Operand 3426 states and 9199 transitions. [2022-01-17 23:29:04,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:29:04,768 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:04,768 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:04,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2022-01-17 23:29:04,769 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)] === [2022-01-17 23:29:04,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:04,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1803576618, now seen corresponding path program 141 times [2022-01-17 23:29:04,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:04,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656462051] [2022-01-17 23:29:04,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:04,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:04,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:05,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:05,350 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:05,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656462051] [2022-01-17 23:29:05,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656462051] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:05,350 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:05,350 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:29:05,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677384774] [2022-01-17 23:29:05,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:05,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:29:05,351 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:05,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:29:05,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:29:05,351 INFO L87 Difference]: Start difference. First operand 3426 states and 9199 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:10,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:10,283 INFO L93 Difference]: Finished difference Result 8283 states and 21300 transitions. [2022-01-17 23:29:10,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-17 23:29:10,284 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:29:10,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:10,295 INFO L225 Difference]: With dead ends: 8283 [2022-01-17 23:29:10,295 INFO L226 Difference]: Without dead ends: 8283 [2022-01-17 23:29:10,295 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 388 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=874, Invalid=2318, Unknown=0, NotChecked=0, Total=3192 [2022-01-17 23:29:10,296 INFO L933 BasicCegarLoop]: 364 mSDtfsCounter, 1096 mSDsluCounter, 3964 mSDsCounter, 0 mSdLazyCounter, 1755 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1096 SdHoareTripleChecker+Valid, 4158 SdHoareTripleChecker+Invalid, 1837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:10,296 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1096 Valid, 4158 Invalid, 1837 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1755 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-17 23:29:10,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8283 states. [2022-01-17 23:29:10,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8283 to 3398. [2022-01-17 23:29:10,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3398 states, 3396 states have (on average 2.684040047114252) internal successors, (9115), 3397 states have internal predecessors, (9115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:10,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3398 states to 3398 states and 9115 transitions. [2022-01-17 23:29:10,355 INFO L78 Accepts]: Start accepts. Automaton has 3398 states and 9115 transitions. Word has length 106 [2022-01-17 23:29:10,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:10,356 INFO L470 AbstractCegarLoop]: Abstraction has 3398 states and 9115 transitions. [2022-01-17 23:29:10,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:10,356 INFO L276 IsEmpty]: Start isEmpty. Operand 3398 states and 9115 transitions. [2022-01-17 23:29:10,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:29:10,359 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:10,359 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:10,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2022-01-17 23:29:10,359 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)] === [2022-01-17 23:29:10,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:10,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1136153386, now seen corresponding path program 142 times [2022-01-17 23:29:10,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:10,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274771334] [2022-01-17 23:29:10,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:10,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:10,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:10,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:10,848 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:10,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274771334] [2022-01-17 23:29:10,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274771334] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:10,848 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:10,848 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:29:10,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917887349] [2022-01-17 23:29:10,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:10,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:29:10,849 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:10,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:29:10,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:29:10,849 INFO L87 Difference]: Start difference. First operand 3398 states and 9115 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:13,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:13,261 INFO L93 Difference]: Finished difference Result 7718 states and 20071 transitions. [2022-01-17 23:29:13,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-17 23:29:13,262 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:29:13,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:13,271 INFO L225 Difference]: With dead ends: 7718 [2022-01-17 23:29:13,271 INFO L226 Difference]: Without dead ends: 7718 [2022-01-17 23:29:13,271 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=530, Invalid=1540, Unknown=0, NotChecked=0, Total=2070 [2022-01-17 23:29:13,271 INFO L933 BasicCegarLoop]: 319 mSDtfsCounter, 804 mSDsluCounter, 3394 mSDsCounter, 0 mSdLazyCounter, 1409 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 804 SdHoareTripleChecker+Valid, 3545 SdHoareTripleChecker+Invalid, 1450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:13,272 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [804 Valid, 3545 Invalid, 1450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1409 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:29:13,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7718 states. [2022-01-17 23:29:13,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7718 to 3384. [2022-01-17 23:29:13,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3384 states, 3382 states have (on average 2.6827321111768185) internal successors, (9073), 3383 states have internal predecessors, (9073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:13,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3384 states to 3384 states and 9073 transitions. [2022-01-17 23:29:13,323 INFO L78 Accepts]: Start accepts. Automaton has 3384 states and 9073 transitions. Word has length 106 [2022-01-17 23:29:13,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:13,324 INFO L470 AbstractCegarLoop]: Abstraction has 3384 states and 9073 transitions. [2022-01-17 23:29:13,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:13,324 INFO L276 IsEmpty]: Start isEmpty. Operand 3384 states and 9073 transitions. [2022-01-17 23:29:13,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:29:13,327 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:13,327 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:13,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2022-01-17 23:29:13,327 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)] === [2022-01-17 23:29:13,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:13,327 INFO L85 PathProgramCache]: Analyzing trace with hash 911705848, now seen corresponding path program 143 times [2022-01-17 23:29:13,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:13,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411072253] [2022-01-17 23:29:13,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:13,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:13,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:13,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:13,820 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:13,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411072253] [2022-01-17 23:29:13,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411072253] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:13,820 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:13,820 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:29:13,820 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843212584] [2022-01-17 23:29:13,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:13,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:29:13,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:13,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:29:13,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:29:13,821 INFO L87 Difference]: Start difference. First operand 3384 states and 9073 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:17,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:17,081 INFO L93 Difference]: Finished difference Result 7337 states and 19059 transitions. [2022-01-17 23:29:17,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-17 23:29:17,082 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:29:17,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:17,091 INFO L225 Difference]: With dead ends: 7337 [2022-01-17 23:29:17,091 INFO L226 Difference]: Without dead ends: 7337 [2022-01-17 23:29:17,092 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=641, Invalid=1809, Unknown=0, NotChecked=0, Total=2450 [2022-01-17 23:29:17,092 INFO L933 BasicCegarLoop]: 322 mSDtfsCounter, 831 mSDsluCounter, 3782 mSDsCounter, 0 mSdLazyCounter, 1746 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 831 SdHoareTripleChecker+Valid, 3932 SdHoareTripleChecker+Invalid, 1816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 1746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:17,092 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [831 Valid, 3932 Invalid, 1816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 1746 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-17 23:29:17,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7337 states. [2022-01-17 23:29:17,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7337 to 3370. [2022-01-17 23:29:17,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3370 states, 3368 states have (on average 2.6814133016627077) internal successors, (9031), 3369 states have internal predecessors, (9031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:17,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3370 states to 3370 states and 9031 transitions. [2022-01-17 23:29:17,153 INFO L78 Accepts]: Start accepts. Automaton has 3370 states and 9031 transitions. Word has length 106 [2022-01-17 23:29:17,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:17,153 INFO L470 AbstractCegarLoop]: Abstraction has 3370 states and 9031 transitions. [2022-01-17 23:29:17,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:17,154 INFO L276 IsEmpty]: Start isEmpty. Operand 3370 states and 9031 transitions. [2022-01-17 23:29:17,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:29:17,157 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:17,157 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:17,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2022-01-17 23:29:17,158 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)] === [2022-01-17 23:29:17,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:17,158 INFO L85 PathProgramCache]: Analyzing trace with hash 968296406, now seen corresponding path program 144 times [2022-01-17 23:29:17,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:17,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035544434] [2022-01-17 23:29:17,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:17,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:17,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:17,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:17,690 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:17,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035544434] [2022-01-17 23:29:17,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035544434] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:17,690 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:17,690 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:29:17,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756967450] [2022-01-17 23:29:17,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:17,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:29:17,691 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:17,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:29:17,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=523, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:29:17,691 INFO L87 Difference]: Start difference. First operand 3370 states and 9031 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:21,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:21,563 INFO L93 Difference]: Finished difference Result 8031 states and 20712 transitions. [2022-01-17 23:29:21,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-17 23:29:21,564 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:29:21,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:21,573 INFO L225 Difference]: With dead ends: 8031 [2022-01-17 23:29:21,573 INFO L226 Difference]: Without dead ends: 8031 [2022-01-17 23:29:21,573 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 305 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=890, Invalid=2080, Unknown=0, NotChecked=0, Total=2970 [2022-01-17 23:29:21,574 INFO L933 BasicCegarLoop]: 375 mSDtfsCounter, 1273 mSDsluCounter, 3601 mSDsCounter, 0 mSdLazyCounter, 1452 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1273 SdHoareTripleChecker+Valid, 3835 SdHoareTripleChecker+Invalid, 1549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 1452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:21,574 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1273 Valid, 3835 Invalid, 1549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 1452 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:29:21,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8031 states. [2022-01-17 23:29:21,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8031 to 3454. [2022-01-17 23:29:21,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3454 states, 3452 states have (on average 2.6891657010428736) internal successors, (9283), 3453 states have internal predecessors, (9283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:21,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3454 states to 3454 states and 9283 transitions. [2022-01-17 23:29:21,632 INFO L78 Accepts]: Start accepts. Automaton has 3454 states and 9283 transitions. Word has length 106 [2022-01-17 23:29:21,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:21,632 INFO L470 AbstractCegarLoop]: Abstraction has 3454 states and 9283 transitions. [2022-01-17 23:29:21,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:21,632 INFO L276 IsEmpty]: Start isEmpty. Operand 3454 states and 9283 transitions. [2022-01-17 23:29:21,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:29:21,636 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:21,636 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:21,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2022-01-17 23:29:21,636 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)] === [2022-01-17 23:29:21,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:21,637 INFO L85 PathProgramCache]: Analyzing trace with hash 549177732, now seen corresponding path program 145 times [2022-01-17 23:29:21,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:21,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102176302] [2022-01-17 23:29:21,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:21,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:21,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:22,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:22,154 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:22,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102176302] [2022-01-17 23:29:22,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102176302] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:22,154 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:22,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:29:22,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020926823] [2022-01-17 23:29:22,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:22,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:29:22,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:22,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:29:22,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=527, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:29:22,155 INFO L87 Difference]: Start difference. First operand 3454 states and 9283 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:24,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:24,776 INFO L93 Difference]: Finished difference Result 7397 states and 19268 transitions. [2022-01-17 23:29:24,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-17 23:29:24,777 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:29:24,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:24,786 INFO L225 Difference]: With dead ends: 7397 [2022-01-17 23:29:24,786 INFO L226 Difference]: Without dead ends: 7397 [2022-01-17 23:29:24,787 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=542, Invalid=1438, Unknown=0, NotChecked=0, Total=1980 [2022-01-17 23:29:24,787 INFO L933 BasicCegarLoop]: 344 mSDtfsCounter, 932 mSDsluCounter, 3275 mSDsCounter, 0 mSdLazyCounter, 1265 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 932 SdHoareTripleChecker+Valid, 3468 SdHoareTripleChecker+Invalid, 1324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:24,787 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [932 Valid, 3468 Invalid, 1324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1265 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:29:24,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7397 states. [2022-01-17 23:29:24,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7397 to 3440. [2022-01-17 23:29:24,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3440 states, 3438 states have (on average 2.6878999418266436) internal successors, (9241), 3439 states have internal predecessors, (9241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:24,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3440 states to 3440 states and 9241 transitions. [2022-01-17 23:29:24,846 INFO L78 Accepts]: Start accepts. Automaton has 3440 states and 9241 transitions. Word has length 106 [2022-01-17 23:29:24,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:24,846 INFO L470 AbstractCegarLoop]: Abstraction has 3440 states and 9241 transitions. [2022-01-17 23:29:24,846 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:24,846 INFO L276 IsEmpty]: Start isEmpty. Operand 3440 states and 9241 transitions. [2022-01-17 23:29:24,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:29:24,850 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:24,850 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:24,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2022-01-17 23:29:24,850 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)] === [2022-01-17 23:29:24,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:24,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1128539226, now seen corresponding path program 146 times [2022-01-17 23:29:24,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:24,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696071204] [2022-01-17 23:29:24,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:24,851 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:24,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:25,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:25,349 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:25,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696071204] [2022-01-17 23:29:25,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696071204] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:25,349 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:25,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:29:25,349 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619679040] [2022-01-17 23:29:25,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:25,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:29:25,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:25,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:29:25,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:29:25,350 INFO L87 Difference]: Start difference. First operand 3440 states and 9241 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:28,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:28,129 INFO L93 Difference]: Finished difference Result 7517 states and 19506 transitions. [2022-01-17 23:29:28,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-17 23:29:28,130 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:29:28,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:28,139 INFO L225 Difference]: With dead ends: 7517 [2022-01-17 23:29:28,140 INFO L226 Difference]: Without dead ends: 7517 [2022-01-17 23:29:28,140 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=560, Invalid=1510, Unknown=0, NotChecked=0, Total=2070 [2022-01-17 23:29:28,140 INFO L933 BasicCegarLoop]: 340 mSDtfsCounter, 869 mSDsluCounter, 3987 mSDsCounter, 0 mSdLazyCounter, 1640 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 869 SdHoareTripleChecker+Valid, 4148 SdHoareTripleChecker+Invalid, 1683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:28,140 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [869 Valid, 4148 Invalid, 1683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1640 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:29:28,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7517 states. [2022-01-17 23:29:28,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7517 to 3426. [2022-01-17 23:29:28,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3426 states, 3424 states have (on average 2.6866238317757007) internal successors, (9199), 3425 states have internal predecessors, (9199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:28,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3426 states to 3426 states and 9199 transitions. [2022-01-17 23:29:28,202 INFO L78 Accepts]: Start accepts. Automaton has 3426 states and 9199 transitions. Word has length 106 [2022-01-17 23:29:28,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:28,203 INFO L470 AbstractCegarLoop]: Abstraction has 3426 states and 9199 transitions. [2022-01-17 23:29:28,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:28,203 INFO L276 IsEmpty]: Start isEmpty. Operand 3426 states and 9199 transitions. [2022-01-17 23:29:28,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:29:28,207 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:28,207 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:28,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2022-01-17 23:29:28,207 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)] === [2022-01-17 23:29:28,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:28,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1660799876, now seen corresponding path program 147 times [2022-01-17 23:29:28,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:28,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235926650] [2022-01-17 23:29:28,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:28,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:28,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:28,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:28,727 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:28,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235926650] [2022-01-17 23:29:28,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235926650] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:28,727 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:28,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:29:28,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362282349] [2022-01-17 23:29:28,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:28,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:29:28,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:28,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:29:28,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:29:28,728 INFO L87 Difference]: Start difference. First operand 3426 states and 9199 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:33,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:33,026 INFO L93 Difference]: Finished difference Result 8170 states and 20937 transitions. [2022-01-17 23:29:33,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-17 23:29:33,027 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:29:33,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:33,036 INFO L225 Difference]: With dead ends: 8170 [2022-01-17 23:29:33,037 INFO L226 Difference]: Without dead ends: 8170 [2022-01-17 23:29:33,037 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=823, Invalid=2147, Unknown=0, NotChecked=0, Total=2970 [2022-01-17 23:29:33,037 INFO L933 BasicCegarLoop]: 353 mSDtfsCounter, 1107 mSDsluCounter, 3713 mSDsCounter, 0 mSdLazyCounter, 1644 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1107 SdHoareTripleChecker+Valid, 3897 SdHoareTripleChecker+Invalid, 1727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 1644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:33,037 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1107 Valid, 3897 Invalid, 1727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 1644 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-17 23:29:33,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8170 states. [2022-01-17 23:29:33,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8170 to 3398. [2022-01-17 23:29:33,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3398 states, 3396 states have (on average 2.684040047114252) internal successors, (9115), 3397 states have internal predecessors, (9115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:33,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3398 states to 3398 states and 9115 transitions. [2022-01-17 23:29:33,094 INFO L78 Accepts]: Start accepts. Automaton has 3398 states and 9115 transitions. Word has length 106 [2022-01-17 23:29:33,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:33,094 INFO L470 AbstractCegarLoop]: Abstraction has 3398 states and 9115 transitions. [2022-01-17 23:29:33,094 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:33,095 INFO L276 IsEmpty]: Start isEmpty. Operand 3398 states and 9115 transitions. [2022-01-17 23:29:33,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:29:33,098 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:33,098 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:33,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2022-01-17 23:29:33,098 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)] === [2022-01-17 23:29:33,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:33,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1966744188, now seen corresponding path program 148 times [2022-01-17 23:29:33,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:33,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434959743] [2022-01-17 23:29:33,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:33,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:33,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:33,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:33,657 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:33,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434959743] [2022-01-17 23:29:33,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434959743] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:33,657 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:33,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:29:33,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434982405] [2022-01-17 23:29:33,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:33,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:29:33,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:33,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:29:33,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:29:33,658 INFO L87 Difference]: Start difference. First operand 3398 states and 9115 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:36,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:36,776 INFO L93 Difference]: Finished difference Result 7269 states and 18811 transitions. [2022-01-17 23:29:36,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-17 23:29:36,776 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:29:36,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:36,786 INFO L225 Difference]: With dead ends: 7269 [2022-01-17 23:29:36,786 INFO L226 Difference]: Without dead ends: 7269 [2022-01-17 23:29:36,787 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=626, Invalid=1726, Unknown=0, NotChecked=0, Total=2352 [2022-01-17 23:29:36,787 INFO L933 BasicCegarLoop]: 333 mSDtfsCounter, 918 mSDsluCounter, 3493 mSDsCounter, 0 mSdLazyCounter, 1533 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 918 SdHoareTripleChecker+Valid, 3658 SdHoareTripleChecker+Invalid, 1597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:36,787 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [918 Valid, 3658 Invalid, 1597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1533 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:29:36,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7269 states. [2022-01-17 23:29:36,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7269 to 3384. [2022-01-17 23:29:36,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3384 states, 3382 states have (on average 2.6827321111768185) internal successors, (9073), 3383 states have internal predecessors, (9073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:36,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3384 states to 3384 states and 9073 transitions. [2022-01-17 23:29:36,841 INFO L78 Accepts]: Start accepts. Automaton has 3384 states and 9073 transitions. Word has length 106 [2022-01-17 23:29:36,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:36,841 INFO L470 AbstractCegarLoop]: Abstraction has 3384 states and 9073 transitions. [2022-01-17 23:29:36,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:36,841 INFO L276 IsEmpty]: Start isEmpty. Operand 3384 states and 9073 transitions. [2022-01-17 23:29:36,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:29:36,844 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:36,844 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:36,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2022-01-17 23:29:36,844 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)] === [2022-01-17 23:29:36,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:36,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1297593506, now seen corresponding path program 149 times [2022-01-17 23:29:36,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:36,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417713405] [2022-01-17 23:29:36,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:36,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:36,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:37,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:37,378 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:37,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417713405] [2022-01-17 23:29:37,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417713405] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:37,378 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:37,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:29:37,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441263381] [2022-01-17 23:29:37,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:37,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:29:37,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:37,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:29:37,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=523, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:29:37,379 INFO L87 Difference]: Start difference. First operand 3384 states and 9073 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:41,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:41,142 INFO L93 Difference]: Finished difference Result 7683 states and 19785 transitions. [2022-01-17 23:29:41,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-17 23:29:41,142 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:29:41,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:41,150 INFO L225 Difference]: With dead ends: 7683 [2022-01-17 23:29:41,150 INFO L226 Difference]: Without dead ends: 7683 [2022-01-17 23:29:41,150 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=834, Invalid=1922, Unknown=0, NotChecked=0, Total=2756 [2022-01-17 23:29:41,151 INFO L933 BasicCegarLoop]: 364 mSDtfsCounter, 1254 mSDsluCounter, 3772 mSDsCounter, 0 mSdLazyCounter, 1635 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1254 SdHoareTripleChecker+Valid, 3971 SdHoareTripleChecker+Invalid, 1717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:41,151 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1254 Valid, 3971 Invalid, 1717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1635 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:29:41,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7683 states. [2022-01-17 23:29:41,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7683 to 3468. [2022-01-17 23:29:41,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3468 states, 3466 states have (on average 2.6904212348528564) internal successors, (9325), 3467 states have internal predecessors, (9325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:41,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3468 states to 3468 states and 9325 transitions. [2022-01-17 23:29:41,199 INFO L78 Accepts]: Start accepts. Automaton has 3468 states and 9325 transitions. Word has length 106 [2022-01-17 23:29:41,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:41,199 INFO L470 AbstractCegarLoop]: Abstraction has 3468 states and 9325 transitions. [2022-01-17 23:29:41,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:41,199 INFO L276 IsEmpty]: Start isEmpty. Operand 3468 states and 9325 transitions. [2022-01-17 23:29:41,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:29:41,202 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:41,202 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:41,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2022-01-17 23:29:41,202 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)] === [2022-01-17 23:29:41,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:41,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1154348530, now seen corresponding path program 150 times [2022-01-17 23:29:41,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:41,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168126472] [2022-01-17 23:29:41,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:41,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:41,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:41,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:41,755 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:41,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168126472] [2022-01-17 23:29:41,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168126472] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:41,756 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:41,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:29:41,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514514370] [2022-01-17 23:29:41,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:41,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:29:41,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:41,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:29:41,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=527, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:29:41,756 INFO L87 Difference]: Start difference. First operand 3468 states and 9325 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:45,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:45,935 INFO L93 Difference]: Finished difference Result 7407 states and 19088 transitions. [2022-01-17 23:29:45,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-17 23:29:45,935 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:29:45,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:45,945 INFO L225 Difference]: With dead ends: 7407 [2022-01-17 23:29:45,945 INFO L226 Difference]: Without dead ends: 7407 [2022-01-17 23:29:45,946 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 313 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=834, Invalid=2028, Unknown=0, NotChecked=0, Total=2862 [2022-01-17 23:29:45,946 INFO L933 BasicCegarLoop]: 364 mSDtfsCounter, 1237 mSDsluCounter, 3668 mSDsCounter, 0 mSdLazyCounter, 1527 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1237 SdHoareTripleChecker+Valid, 3872 SdHoareTripleChecker+Invalid, 1614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 1527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:45,946 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1237 Valid, 3872 Invalid, 1614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 1527 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:29:45,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7407 states. [2022-01-17 23:29:46,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7407 to 3454. [2022-01-17 23:29:46,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3454 states, 3452 states have (on average 2.6891657010428736) internal successors, (9283), 3453 states have internal predecessors, (9283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:46,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3454 states to 3454 states and 9283 transitions. [2022-01-17 23:29:46,014 INFO L78 Accepts]: Start accepts. Automaton has 3454 states and 9283 transitions. Word has length 106 [2022-01-17 23:29:46,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:46,014 INFO L470 AbstractCegarLoop]: Abstraction has 3454 states and 9283 transitions. [2022-01-17 23:29:46,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:46,014 INFO L276 IsEmpty]: Start isEmpty. Operand 3454 states and 9283 transitions. [2022-01-17 23:29:46,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:29:46,018 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:46,018 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:46,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2022-01-17 23:29:46,018 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)] === [2022-01-17 23:29:46,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:46,019 INFO L85 PathProgramCache]: Analyzing trace with hash -523368428, now seen corresponding path program 151 times [2022-01-17 23:29:46,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:46,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45707832] [2022-01-17 23:29:46,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:46,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:46,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:46,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:46,500 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:46,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45707832] [2022-01-17 23:29:46,501 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45707832] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:46,501 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:46,501 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:29:46,501 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132488267] [2022-01-17 23:29:46,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:46,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:29:46,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:46,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:29:46,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:29:46,502 INFO L87 Difference]: Start difference. First operand 3454 states and 9283 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:49,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:49,076 INFO L93 Difference]: Finished difference Result 7210 states and 18668 transitions. [2022-01-17 23:29:49,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-17 23:29:49,076 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:29:49,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:49,083 INFO L225 Difference]: With dead ends: 7210 [2022-01-17 23:29:49,083 INFO L226 Difference]: Without dead ends: 7210 [2022-01-17 23:29:49,084 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=560, Invalid=1510, Unknown=0, NotChecked=0, Total=2070 [2022-01-17 23:29:49,084 INFO L933 BasicCegarLoop]: 341 mSDtfsCounter, 875 mSDsluCounter, 3387 mSDsCounter, 0 mSdLazyCounter, 1288 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 875 SdHoareTripleChecker+Valid, 3567 SdHoareTripleChecker+Invalid, 1336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:49,084 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [875 Valid, 3567 Invalid, 1336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1288 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:29:49,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7210 states. [2022-01-17 23:29:49,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7210 to 3440. [2022-01-17 23:29:49,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3440 states, 3438 states have (on average 2.6878999418266436) internal successors, (9241), 3439 states have internal predecessors, (9241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:49,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3440 states to 3440 states and 9241 transitions. [2022-01-17 23:29:49,132 INFO L78 Accepts]: Start accepts. Automaton has 3440 states and 9241 transitions. Word has length 106 [2022-01-17 23:29:49,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:49,132 INFO L470 AbstractCegarLoop]: Abstraction has 3440 states and 9241 transitions. [2022-01-17 23:29:49,132 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:49,132 INFO L276 IsEmpty]: Start isEmpty. Operand 3440 states and 9241 transitions. [2022-01-17 23:29:49,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:29:49,135 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:49,136 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:49,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2022-01-17 23:29:49,136 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)] === [2022-01-17 23:29:49,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:49,136 INFO L85 PathProgramCache]: Analyzing trace with hash -2028996622, now seen corresponding path program 152 times [2022-01-17 23:29:49,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:49,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040740225] [2022-01-17 23:29:49,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:49,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:49,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:49,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:49,679 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:49,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040740225] [2022-01-17 23:29:49,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040740225] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:49,679 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:49,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:29:49,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206531429] [2022-01-17 23:29:49,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:49,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:29:49,679 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:49,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:29:49,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:29:49,680 INFO L87 Difference]: Start difference. First operand 3440 states and 9241 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:52,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:52,803 INFO L93 Difference]: Finished difference Result 7017 states and 18129 transitions. [2022-01-17 23:29:52,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-17 23:29:52,804 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:29:52,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:52,812 INFO L225 Difference]: With dead ends: 7017 [2022-01-17 23:29:52,813 INFO L226 Difference]: Without dead ends: 7017 [2022-01-17 23:29:52,813 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=610, Invalid=1646, Unknown=0, NotChecked=0, Total=2256 [2022-01-17 23:29:52,813 INFO L933 BasicCegarLoop]: 342 mSDtfsCounter, 909 mSDsluCounter, 3673 mSDsCounter, 0 mSdLazyCounter, 1528 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 909 SdHoareTripleChecker+Valid, 3845 SdHoareTripleChecker+Invalid, 1591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:52,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [909 Valid, 3845 Invalid, 1591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1528 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:29:52,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7017 states. [2022-01-17 23:29:52,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7017 to 3412. [2022-01-17 23:29:52,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3412 states, 3410 states have (on average 2.6853372434017597) internal successors, (9157), 3411 states have internal predecessors, (9157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:52,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3412 states to 3412 states and 9157 transitions. [2022-01-17 23:29:52,867 INFO L78 Accepts]: Start accepts. Automaton has 3412 states and 9157 transitions. Word has length 106 [2022-01-17 23:29:52,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:52,867 INFO L470 AbstractCegarLoop]: Abstraction has 3412 states and 9157 transitions. [2022-01-17 23:29:52,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:52,867 INFO L276 IsEmpty]: Start isEmpty. Operand 3412 states and 9157 transitions. [2022-01-17 23:29:52,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:29:52,870 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:52,870 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:52,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2022-01-17 23:29:52,871 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)] === [2022-01-17 23:29:52,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:52,871 INFO L85 PathProgramCache]: Analyzing trace with hash -273487932, now seen corresponding path program 153 times [2022-01-17 23:29:52,871 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:52,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490595939] [2022-01-17 23:29:52,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:52,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:52,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:53,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:53,430 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:53,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490595939] [2022-01-17 23:29:53,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490595939] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:53,430 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:53,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:29:53,430 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477929789] [2022-01-17 23:29:53,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:53,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:29:53,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:53,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:29:53,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=523, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:29:53,431 INFO L87 Difference]: Start difference. First operand 3412 states and 9157 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:57,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:57,378 INFO L93 Difference]: Finished difference Result 7335 states and 18858 transitions. [2022-01-17 23:29:57,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:29:57,378 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:29:57,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:57,386 INFO L225 Difference]: With dead ends: 7335 [2022-01-17 23:29:57,386 INFO L226 Difference]: Without dead ends: 7335 [2022-01-17 23:29:57,386 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=777, Invalid=1773, Unknown=0, NotChecked=0, Total=2550 [2022-01-17 23:29:57,386 INFO L933 BasicCegarLoop]: 350 mSDtfsCounter, 1205 mSDsluCounter, 3489 mSDsCounter, 0 mSdLazyCounter, 1401 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1205 SdHoareTripleChecker+Valid, 3680 SdHoareTripleChecker+Invalid, 1480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 1401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:57,386 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1205 Valid, 3680 Invalid, 1480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 1401 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:29:57,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7335 states. [2022-01-17 23:29:57,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7335 to 3454. [2022-01-17 23:29:57,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3454 states, 3452 states have (on average 2.6891657010428736) internal successors, (9283), 3453 states have internal predecessors, (9283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:57,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3454 states to 3454 states and 9283 transitions. [2022-01-17 23:29:57,442 INFO L78 Accepts]: Start accepts. Automaton has 3454 states and 9283 transitions. Word has length 106 [2022-01-17 23:29:57,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:57,443 INFO L470 AbstractCegarLoop]: Abstraction has 3454 states and 9283 transitions. [2022-01-17 23:29:57,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:57,443 INFO L276 IsEmpty]: Start isEmpty. Operand 3454 states and 9283 transitions. [2022-01-17 23:29:57,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:29:57,447 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:57,447 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:57,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2022-01-17 23:29:57,447 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)] === [2022-01-17 23:29:57,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:57,447 INFO L85 PathProgramCache]: Analyzing trace with hash -790925036, now seen corresponding path program 154 times [2022-01-17 23:29:57,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:57,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442762520] [2022-01-17 23:29:57,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:57,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:57,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:57,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:57,996 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:57,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442762520] [2022-01-17 23:29:57,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442762520] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:57,996 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:57,996 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:29:57,996 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721954696] [2022-01-17 23:29:57,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:57,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:29:57,997 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:57,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:29:57,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=527, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:29:57,998 INFO L87 Difference]: Start difference. First operand 3454 states and 9283 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:01,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:01,944 INFO L93 Difference]: Finished difference Result 7059 states and 18161 transitions. [2022-01-17 23:30:01,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:30:01,944 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:30:01,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:01,953 INFO L225 Difference]: With dead ends: 7059 [2022-01-17 23:30:01,954 INFO L226 Difference]: Without dead ends: 7059 [2022-01-17 23:30:01,954 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=779, Invalid=1873, Unknown=0, NotChecked=0, Total=2652 [2022-01-17 23:30:01,954 INFO L933 BasicCegarLoop]: 350 mSDtfsCounter, 1225 mSDsluCounter, 3516 mSDsCounter, 0 mSdLazyCounter, 1373 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1225 SdHoareTripleChecker+Valid, 3706 SdHoareTripleChecker+Invalid, 1447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:01,954 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1225 Valid, 3706 Invalid, 1447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1373 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:30:01,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7059 states. [2022-01-17 23:30:02,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7059 to 3440. [2022-01-17 23:30:02,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3440 states, 3438 states have (on average 2.6878999418266436) internal successors, (9241), 3439 states have internal predecessors, (9241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:02,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3440 states to 3440 states and 9241 transitions. [2022-01-17 23:30:02,015 INFO L78 Accepts]: Start accepts. Automaton has 3440 states and 9241 transitions. Word has length 106 [2022-01-17 23:30:02,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:02,015 INFO L470 AbstractCegarLoop]: Abstraction has 3440 states and 9241 transitions. [2022-01-17 23:30:02,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:02,015 INFO L276 IsEmpty]: Start isEmpty. Operand 3440 states and 9241 transitions. [2022-01-17 23:30:02,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:30:02,019 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:02,019 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:02,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2022-01-17 23:30:02,019 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)] === [2022-01-17 23:30:02,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:02,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1826325302, now seen corresponding path program 155 times [2022-01-17 23:30:02,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:02,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259351386] [2022-01-17 23:30:02,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:02,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:02,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:02,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:02,537 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:02,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259351386] [2022-01-17 23:30:02,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259351386] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:02,537 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:02,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:30:02,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842988750] [2022-01-17 23:30:02,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:02,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:30:02,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:02,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:30:02,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:30:02,538 INFO L87 Difference]: Start difference. First operand 3440 states and 9241 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:05,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:05,221 INFO L93 Difference]: Finished difference Result 6427 states and 16653 transitions. [2022-01-17 23:30:05,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-17 23:30:05,221 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:30:05,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:05,230 INFO L225 Difference]: With dead ends: 6427 [2022-01-17 23:30:05,231 INFO L226 Difference]: Without dead ends: 6427 [2022-01-17 23:30:05,231 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=560, Invalid=1510, Unknown=0, NotChecked=0, Total=2070 [2022-01-17 23:30:05,231 INFO L933 BasicCegarLoop]: 341 mSDtfsCounter, 887 mSDsluCounter, 3527 mSDsCounter, 0 mSdLazyCounter, 1312 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 887 SdHoareTripleChecker+Valid, 3704 SdHoareTripleChecker+Invalid, 1364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:05,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [887 Valid, 3704 Invalid, 1364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1312 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:30:05,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6427 states. [2022-01-17 23:30:05,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6427 to 3426. [2022-01-17 23:30:05,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3426 states, 3424 states have (on average 2.6866238317757007) internal successors, (9199), 3425 states have internal predecessors, (9199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:05,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3426 states to 3426 states and 9199 transitions. [2022-01-17 23:30:05,296 INFO L78 Accepts]: Start accepts. Automaton has 3426 states and 9199 transitions. Word has length 106 [2022-01-17 23:30:05,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:05,296 INFO L470 AbstractCegarLoop]: Abstraction has 3426 states and 9199 transitions. [2022-01-17 23:30:05,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:05,296 INFO L276 IsEmpty]: Start isEmpty. Operand 3426 states and 9199 transitions. [2022-01-17 23:30:05,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:30:05,300 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:05,300 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:05,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2022-01-17 23:30:05,300 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)] === [2022-01-17 23:30:05,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:05,301 INFO L85 PathProgramCache]: Analyzing trace with hash 994511250, now seen corresponding path program 156 times [2022-01-17 23:30:05,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:05,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068843567] [2022-01-17 23:30:05,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:05,301 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:05,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:05,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:05,792 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:05,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068843567] [2022-01-17 23:30:05,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068843567] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:05,793 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:05,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:30:05,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908740508] [2022-01-17 23:30:05,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:05,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:30:05,793 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:05,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:30:05,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=523, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:30:05,794 INFO L87 Difference]: Start difference. First operand 3426 states and 9199 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:09,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:09,070 INFO L93 Difference]: Finished difference Result 6346 states and 16368 transitions. [2022-01-17 23:30:09,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:30:09,070 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:30:09,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:09,077 INFO L225 Difference]: With dead ends: 6346 [2022-01-17 23:30:09,077 INFO L226 Difference]: Without dead ends: 6346 [2022-01-17 23:30:09,077 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=784, Invalid=1766, Unknown=0, NotChecked=0, Total=2550 [2022-01-17 23:30:09,077 INFO L933 BasicCegarLoop]: 363 mSDtfsCounter, 1166 mSDsluCounter, 2854 mSDsCounter, 0 mSdLazyCounter, 1084 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1166 SdHoareTripleChecker+Valid, 3079 SdHoareTripleChecker+Invalid, 1169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1084 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:09,077 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1166 Valid, 3079 Invalid, 1169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1084 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:30:09,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6346 states. [2022-01-17 23:30:09,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6346 to 3454. [2022-01-17 23:30:09,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3454 states, 3452 states have (on average 2.6891657010428736) internal successors, (9283), 3453 states have internal predecessors, (9283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:09,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3454 states to 3454 states and 9283 transitions. [2022-01-17 23:30:09,125 INFO L78 Accepts]: Start accepts. Automaton has 3454 states and 9283 transitions. Word has length 106 [2022-01-17 23:30:09,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:09,125 INFO L470 AbstractCegarLoop]: Abstraction has 3454 states and 9283 transitions. [2022-01-17 23:30:09,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:09,125 INFO L276 IsEmpty]: Start isEmpty. Operand 3454 states and 9283 transitions. [2022-01-17 23:30:09,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:30:09,129 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:09,129 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:09,129 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2022-01-17 23:30:09,129 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)] === [2022-01-17 23:30:09,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:09,129 INFO L85 PathProgramCache]: Analyzing trace with hash 2039036736, now seen corresponding path program 157 times [2022-01-17 23:30:09,129 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:09,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232946453] [2022-01-17 23:30:09,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:09,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:09,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:09,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:09,623 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:09,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232946453] [2022-01-17 23:30:09,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232946453] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:09,623 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:09,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:30:09,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485811051] [2022-01-17 23:30:09,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:09,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:30:09,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:09,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:30:09,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=527, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:30:09,624 INFO L87 Difference]: Start difference. First operand 3454 states and 9283 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:13,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:13,362 INFO L93 Difference]: Finished difference Result 6070 states and 15671 transitions. [2022-01-17 23:30:13,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:30:13,362 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:30:13,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:13,370 INFO L225 Difference]: With dead ends: 6070 [2022-01-17 23:30:13,370 INFO L226 Difference]: Without dead ends: 6070 [2022-01-17 23:30:13,370 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 278 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=780, Invalid=1872, Unknown=0, NotChecked=0, Total=2652 [2022-01-17 23:30:13,370 INFO L933 BasicCegarLoop]: 376 mSDtfsCounter, 965 mSDsluCounter, 3699 mSDsCounter, 0 mSdLazyCounter, 1561 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 965 SdHoareTripleChecker+Valid, 3900 SdHoareTripleChecker+Invalid, 1621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:13,371 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [965 Valid, 3900 Invalid, 1621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1561 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:30:13,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6070 states. [2022-01-17 23:30:13,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6070 to 3440. [2022-01-17 23:30:13,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3440 states, 3438 states have (on average 2.6878999418266436) internal successors, (9241), 3439 states have internal predecessors, (9241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:13,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3440 states to 3440 states and 9241 transitions. [2022-01-17 23:30:13,425 INFO L78 Accepts]: Start accepts. Automaton has 3440 states and 9241 transitions. Word has length 106 [2022-01-17 23:30:13,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:13,425 INFO L470 AbstractCegarLoop]: Abstraction has 3440 states and 9241 transitions. [2022-01-17 23:30:13,425 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:13,425 INFO L276 IsEmpty]: Start isEmpty. Operand 3440 states and 9241 transitions. [2022-01-17 23:30:13,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:30:13,429 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:13,429 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:13,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2022-01-17 23:30:13,429 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)] === [2022-01-17 23:30:13,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:13,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1442641660, now seen corresponding path program 158 times [2022-01-17 23:30:13,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:13,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887795701] [2022-01-17 23:30:13,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:13,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:13,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:13,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:13,942 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:13,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887795701] [2022-01-17 23:30:13,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887795701] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:13,942 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:13,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:30:13,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014056625] [2022-01-17 23:30:13,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:13,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:30:13,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:13,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:30:13,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:30:13,943 INFO L87 Difference]: Start difference. First operand 3440 states and 9241 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:16,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:16,863 INFO L93 Difference]: Finished difference Result 5447 states and 14096 transitions. [2022-01-17 23:30:16,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:30:16,863 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:30:16,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:16,868 INFO L225 Difference]: With dead ends: 5447 [2022-01-17 23:30:16,869 INFO L226 Difference]: Without dead ends: 5447 [2022-01-17 23:30:16,869 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=594, Invalid=1568, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:30:16,869 INFO L933 BasicCegarLoop]: 338 mSDtfsCounter, 1115 mSDsluCounter, 3729 mSDsCounter, 0 mSdLazyCounter, 1496 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1115 SdHoareTripleChecker+Valid, 3892 SdHoareTripleChecker+Invalid, 1570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:16,869 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1115 Valid, 3892 Invalid, 1570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1496 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:30:16,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5447 states. [2022-01-17 23:30:16,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5447 to 3426. [2022-01-17 23:30:16,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3426 states, 3424 states have (on average 2.6866238317757007) internal successors, (9199), 3425 states have internal predecessors, (9199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:16,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3426 states to 3426 states and 9199 transitions. [2022-01-17 23:30:16,910 INFO L78 Accepts]: Start accepts. Automaton has 3426 states and 9199 transitions. Word has length 106 [2022-01-17 23:30:16,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:16,910 INFO L470 AbstractCegarLoop]: Abstraction has 3426 states and 9199 transitions. [2022-01-17 23:30:16,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:16,910 INFO L276 IsEmpty]: Start isEmpty. Operand 3426 states and 9199 transitions. [2022-01-17 23:30:16,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:30:16,914 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:16,914 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:16,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2022-01-17 23:30:16,914 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)] === [2022-01-17 23:30:16,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:16,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1268477426, now seen corresponding path program 159 times [2022-01-17 23:30:16,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:16,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223671250] [2022-01-17 23:30:16,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:16,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:16,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:17,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:17,454 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:17,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223671250] [2022-01-17 23:30:17,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223671250] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:17,455 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:17,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:30:17,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311638445] [2022-01-17 23:30:17,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:17,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:30:17,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:17,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:30:17,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:30:17,456 INFO L87 Difference]: Start difference. First operand 3426 states and 9199 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:20,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:20,445 INFO L93 Difference]: Finished difference Result 5403 states and 13915 transitions. [2022-01-17 23:30:20,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:30:20,446 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:30:20,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:20,451 INFO L225 Difference]: With dead ends: 5403 [2022-01-17 23:30:20,451 INFO L226 Difference]: Without dead ends: 5403 [2022-01-17 23:30:20,452 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=578, Invalid=1584, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:30:20,452 INFO L933 BasicCegarLoop]: 324 mSDtfsCounter, 916 mSDsluCounter, 3561 mSDsCounter, 0 mSdLazyCounter, 1512 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 916 SdHoareTripleChecker+Valid, 3701 SdHoareTripleChecker+Invalid, 1568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:20,452 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [916 Valid, 3701 Invalid, 1568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1512 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:30:20,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5403 states. [2022-01-17 23:30:20,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5403 to 3428. [2022-01-17 23:30:20,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3428 states, 3426 states have (on average 2.6865148861646233) internal successors, (9204), 3427 states have internal predecessors, (9204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:20,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3428 states to 3428 states and 9204 transitions. [2022-01-17 23:30:20,498 INFO L78 Accepts]: Start accepts. Automaton has 3428 states and 9204 transitions. Word has length 106 [2022-01-17 23:30:20,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:20,498 INFO L470 AbstractCegarLoop]: Abstraction has 3428 states and 9204 transitions. [2022-01-17 23:30:20,498 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:20,498 INFO L276 IsEmpty]: Start isEmpty. Operand 3428 states and 9204 transitions. [2022-01-17 23:30:20,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:30:20,501 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:20,501 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:20,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2022-01-17 23:30:20,502 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)] === [2022-01-17 23:30:20,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:20,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1030313152, now seen corresponding path program 160 times [2022-01-17 23:30:20,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:20,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484194134] [2022-01-17 23:30:20,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:20,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:20,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:21,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:21,065 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:21,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484194134] [2022-01-17 23:30:21,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484194134] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:21,065 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:21,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:30:21,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226265942] [2022-01-17 23:30:21,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:21,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:30:21,065 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:21,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:30:21,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:30:21,066 INFO L87 Difference]: Start difference. First operand 3428 states and 9204 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:23,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:23,958 INFO L93 Difference]: Finished difference Result 5303 states and 13720 transitions. [2022-01-17 23:30:23,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:30:23,958 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:30:23,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:23,965 INFO L225 Difference]: With dead ends: 5303 [2022-01-17 23:30:23,965 INFO L226 Difference]: Without dead ends: 5303 [2022-01-17 23:30:23,965 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=579, Invalid=1583, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:30:23,965 INFO L933 BasicCegarLoop]: 325 mSDtfsCounter, 914 mSDsluCounter, 3235 mSDsCounter, 0 mSdLazyCounter, 1227 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 914 SdHoareTripleChecker+Valid, 3393 SdHoareTripleChecker+Invalid, 1280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:23,965 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [914 Valid, 3393 Invalid, 1280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1227 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:30:23,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5303 states. [2022-01-17 23:30:24,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5303 to 3412. [2022-01-17 23:30:24,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3412 states, 3410 states have (on average 2.6853372434017597) internal successors, (9157), 3411 states have internal predecessors, (9157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:24,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3412 states to 3412 states and 9157 transitions. [2022-01-17 23:30:24,014 INFO L78 Accepts]: Start accepts. Automaton has 3412 states and 9157 transitions. Word has length 106 [2022-01-17 23:30:24,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:24,015 INFO L470 AbstractCegarLoop]: Abstraction has 3412 states and 9157 transitions. [2022-01-17 23:30:24,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:24,015 INFO L276 IsEmpty]: Start isEmpty. Operand 3412 states and 9157 transitions. [2022-01-17 23:30:24,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:30:24,019 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:24,019 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:24,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2022-01-17 23:30:24,019 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)] === [2022-01-17 23:30:24,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:24,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1996733862, now seen corresponding path program 161 times [2022-01-17 23:30:24,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:24,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390823349] [2022-01-17 23:30:24,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:24,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:24,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:24,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:24,506 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:24,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390823349] [2022-01-17 23:30:24,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390823349] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:24,506 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:24,507 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:30:24,507 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347811087] [2022-01-17 23:30:24,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:24,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:30:24,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:24,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:30:24,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:30:24,507 INFO L87 Difference]: Start difference. First operand 3412 states and 9157 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:26,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:26,711 INFO L93 Difference]: Finished difference Result 5450 states and 14045 transitions. [2022-01-17 23:30:26,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-17 23:30:26,711 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:30:26,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:26,718 INFO L225 Difference]: With dead ends: 5450 [2022-01-17 23:30:26,718 INFO L226 Difference]: Without dead ends: 5450 [2022-01-17 23:30:26,718 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=530, Invalid=1540, Unknown=0, NotChecked=0, Total=2070 [2022-01-17 23:30:26,718 INFO L933 BasicCegarLoop]: 320 mSDtfsCounter, 862 mSDsluCounter, 3365 mSDsCounter, 0 mSdLazyCounter, 1303 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 862 SdHoareTripleChecker+Valid, 3519 SdHoareTripleChecker+Invalid, 1352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:26,718 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [862 Valid, 3519 Invalid, 1352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1303 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:30:26,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5450 states. [2022-01-17 23:30:26,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5450 to 3416. [2022-01-17 23:30:26,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3416 states, 3414 states have (on average 2.685120093731693) internal successors, (9167), 3415 states have internal predecessors, (9167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:26,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3416 states to 3416 states and 9167 transitions. [2022-01-17 23:30:26,770 INFO L78 Accepts]: Start accepts. Automaton has 3416 states and 9167 transitions. Word has length 106 [2022-01-17 23:30:26,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:26,770 INFO L470 AbstractCegarLoop]: Abstraction has 3416 states and 9167 transitions. [2022-01-17 23:30:26,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:26,770 INFO L276 IsEmpty]: Start isEmpty. Operand 3416 states and 9167 transitions. [2022-01-17 23:30:26,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:30:26,773 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:26,773 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:26,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2022-01-17 23:30:26,774 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)] === [2022-01-17 23:30:26,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:26,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1103601718, now seen corresponding path program 162 times [2022-01-17 23:30:26,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:26,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893940745] [2022-01-17 23:30:26,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:26,774 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:26,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:27,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:27,283 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:27,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893940745] [2022-01-17 23:30:27,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893940745] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:27,283 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:27,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:30:27,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795194859] [2022-01-17 23:30:27,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:27,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:30:27,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:27,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:30:27,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:30:27,284 INFO L87 Difference]: Start difference. First operand 3416 states and 9167 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:29,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:29,762 INFO L93 Difference]: Finished difference Result 5505 states and 14139 transitions. [2022-01-17 23:30:29,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-17 23:30:29,762 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:30:29,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:29,769 INFO L225 Difference]: With dead ends: 5505 [2022-01-17 23:30:29,769 INFO L226 Difference]: Without dead ends: 5505 [2022-01-17 23:30:29,769 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=530, Invalid=1540, Unknown=0, NotChecked=0, Total=2070 [2022-01-17 23:30:29,769 INFO L933 BasicCegarLoop]: 320 mSDtfsCounter, 874 mSDsluCounter, 3468 mSDsCounter, 0 mSdLazyCounter, 1412 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 874 SdHoareTripleChecker+Valid, 3601 SdHoareTripleChecker+Invalid, 1458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:29,769 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [874 Valid, 3601 Invalid, 1458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1412 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:30:29,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5505 states. [2022-01-17 23:30:29,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5505 to 3418. [2022-01-17 23:30:29,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3418 states, 3416 states have (on average 2.6850117096018735) internal successors, (9172), 3417 states have internal predecessors, (9172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:29,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3418 states to 3418 states and 9172 transitions. [2022-01-17 23:30:29,819 INFO L78 Accepts]: Start accepts. Automaton has 3418 states and 9172 transitions. Word has length 106 [2022-01-17 23:30:29,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:29,819 INFO L470 AbstractCegarLoop]: Abstraction has 3418 states and 9172 transitions. [2022-01-17 23:30:29,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:29,819 INFO L276 IsEmpty]: Start isEmpty. Operand 3418 states and 9172 transitions. [2022-01-17 23:30:29,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:30:29,823 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:29,823 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:29,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2022-01-17 23:30:29,823 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)] === [2022-01-17 23:30:29,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:29,823 INFO L85 PathProgramCache]: Analyzing trace with hash 865437444, now seen corresponding path program 163 times [2022-01-17 23:30:29,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:29,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188268353] [2022-01-17 23:30:29,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:29,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:29,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:30,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:30,338 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:30,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188268353] [2022-01-17 23:30:30,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188268353] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:30,338 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:30,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:30:30,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985963451] [2022-01-17 23:30:30,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:30,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:30:30,338 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:30,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:30:30,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:30:30,339 INFO L87 Difference]: Start difference. First operand 3418 states and 9172 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:32,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:32,850 INFO L93 Difference]: Finished difference Result 5360 states and 13849 transitions. [2022-01-17 23:30:32,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:30:32,850 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:30:32,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:32,857 INFO L225 Difference]: With dead ends: 5360 [2022-01-17 23:30:32,857 INFO L226 Difference]: Without dead ends: 5360 [2022-01-17 23:30:32,857 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=564, Invalid=1598, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:30:32,858 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 832 mSDsluCounter, 3303 mSDsCounter, 0 mSdLazyCounter, 1356 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 832 SdHoareTripleChecker+Valid, 3440 SdHoareTripleChecker+Invalid, 1416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:32,858 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [832 Valid, 3440 Invalid, 1416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1356 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:30:32,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5360 states. [2022-01-17 23:30:32,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5360 to 3384. [2022-01-17 23:30:32,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3384 states, 3382 states have (on average 2.6827321111768185) internal successors, (9073), 3383 states have internal predecessors, (9073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:32,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3384 states to 3384 states and 9073 transitions. [2022-01-17 23:30:32,919 INFO L78 Accepts]: Start accepts. Automaton has 3384 states and 9073 transitions. Word has length 106 [2022-01-17 23:30:32,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:32,920 INFO L470 AbstractCegarLoop]: Abstraction has 3384 states and 9073 transitions. [2022-01-17 23:30:32,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:32,920 INFO L276 IsEmpty]: Start isEmpty. Operand 3384 states and 9073 transitions. [2022-01-17 23:30:32,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:30:32,923 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:32,923 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:32,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2022-01-17 23:30:32,923 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)] === [2022-01-17 23:30:32,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:32,924 INFO L85 PathProgramCache]: Analyzing trace with hash 710617416, now seen corresponding path program 164 times [2022-01-17 23:30:32,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:32,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757471546] [2022-01-17 23:30:32,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:32,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:32,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:33,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:33,479 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:33,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757471546] [2022-01-17 23:30:33,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757471546] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:33,479 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:33,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:30:33,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289602609] [2022-01-17 23:30:33,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:33,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:30:33,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:33,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:30:33,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:30:33,480 INFO L87 Difference]: Start difference. First operand 3384 states and 9073 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:36,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:36,532 INFO L93 Difference]: Finished difference Result 5586 states and 14332 transitions. [2022-01-17 23:30:36,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-17 23:30:36,532 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:30:36,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:36,538 INFO L225 Difference]: With dead ends: 5586 [2022-01-17 23:30:36,538 INFO L226 Difference]: Without dead ends: 5586 [2022-01-17 23:30:36,538 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=611, Invalid=1741, Unknown=0, NotChecked=0, Total=2352 [2022-01-17 23:30:36,538 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 787 mSDsluCounter, 3690 mSDsCounter, 0 mSdLazyCounter, 1653 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 787 SdHoareTripleChecker+Valid, 3822 SdHoareTripleChecker+Invalid, 1709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:36,538 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [787 Valid, 3822 Invalid, 1709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1653 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:30:36,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5586 states. [2022-01-17 23:30:36,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5586 to 3386. [2022-01-17 23:30:36,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3386 states, 3384 states have (on average 2.6826241134751774) internal successors, (9078), 3385 states have internal predecessors, (9078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:36,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 9078 transitions. [2022-01-17 23:30:36,583 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 9078 transitions. Word has length 106 [2022-01-17 23:30:36,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:36,583 INFO L470 AbstractCegarLoop]: Abstraction has 3386 states and 9078 transitions. [2022-01-17 23:30:36,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:36,583 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 9078 transitions. [2022-01-17 23:30:36,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:30:36,586 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:36,586 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:36,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2022-01-17 23:30:36,586 INFO L402 AbstractCegarLoop]: === Iteration 168 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-17 23:30:36,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:36,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1772115948, now seen corresponding path program 165 times [2022-01-17 23:30:36,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:36,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206911988] [2022-01-17 23:30:36,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:36,587 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:36,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:37,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:37,134 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:37,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206911988] [2022-01-17 23:30:37,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206911988] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:37,134 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:37,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:30:37,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432555663] [2022-01-17 23:30:37,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:37,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:30:37,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:37,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:30:37,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:30:37,135 INFO L87 Difference]: Start difference. First operand 3386 states and 9078 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:40,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:40,077 INFO L93 Difference]: Finished difference Result 5651 states and 14446 transitions. [2022-01-17 23:30:40,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-17 23:30:40,078 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:30:40,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:40,084 INFO L225 Difference]: With dead ends: 5651 [2022-01-17 23:30:40,084 INFO L226 Difference]: Without dead ends: 5651 [2022-01-17 23:30:40,084 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=580, Invalid=1676, Unknown=0, NotChecked=0, Total=2256 [2022-01-17 23:30:40,085 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 862 mSDsluCounter, 3513 mSDsCounter, 0 mSdLazyCounter, 1611 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 862 SdHoareTripleChecker+Valid, 3623 SdHoareTripleChecker+Invalid, 1661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:40,085 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [862 Valid, 3623 Invalid, 1661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1611 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:30:40,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5651 states. [2022-01-17 23:30:40,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5651 to 3390. [2022-01-17 23:30:40,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3390 states, 3388 states have (on average 2.6824085005903187) internal successors, (9088), 3389 states have internal predecessors, (9088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:40,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3390 states to 3390 states and 9088 transitions. [2022-01-17 23:30:40,133 INFO L78 Accepts]: Start accepts. Automaton has 3390 states and 9088 transitions. Word has length 106 [2022-01-17 23:30:40,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:40,133 INFO L470 AbstractCegarLoop]: Abstraction has 3390 states and 9088 transitions. [2022-01-17 23:30:40,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:40,133 INFO L276 IsEmpty]: Start isEmpty. Operand 3390 states and 9088 transitions. [2022-01-17 23:30:40,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:30:40,137 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:40,137 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:40,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2022-01-17 23:30:40,137 INFO L402 AbstractCegarLoop]: === Iteration 169 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-17 23:30:40,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:40,137 INFO L85 PathProgramCache]: Analyzing trace with hash -962265546, now seen corresponding path program 166 times [2022-01-17 23:30:40,137 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:40,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330575616] [2022-01-17 23:30:40,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:40,138 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:40,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:40,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:40,681 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:40,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330575616] [2022-01-17 23:30:40,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330575616] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:40,681 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:40,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:30:40,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772140141] [2022-01-17 23:30:40,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:40,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:30:40,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:40,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:30:40,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:30:40,682 INFO L87 Difference]: Start difference. First operand 3390 states and 9088 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:43,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:43,357 INFO L93 Difference]: Finished difference Result 5600 states and 14332 transitions. [2022-01-17 23:30:43,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:30:43,357 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:30:43,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:43,364 INFO L225 Difference]: With dead ends: 5600 [2022-01-17 23:30:43,364 INFO L226 Difference]: Without dead ends: 5600 [2022-01-17 23:30:43,364 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=548, Invalid=1614, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:30:43,364 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 801 mSDsluCounter, 3201 mSDsCounter, 0 mSdLazyCounter, 1285 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 801 SdHoareTripleChecker+Valid, 3328 SdHoareTripleChecker+Invalid, 1338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:43,364 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [801 Valid, 3328 Invalid, 1338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1285 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:30:43,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5600 states. [2022-01-17 23:30:43,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5600 to 3392. [2022-01-17 23:30:43,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3392 states, 3390 states have (on average 2.6823008849557524) internal successors, (9093), 3391 states have internal predecessors, (9093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:43,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3392 states to 3392 states and 9093 transitions. [2022-01-17 23:30:43,412 INFO L78 Accepts]: Start accepts. Automaton has 3392 states and 9093 transitions. Word has length 106 [2022-01-17 23:30:43,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:43,412 INFO L470 AbstractCegarLoop]: Abstraction has 3392 states and 9093 transitions. [2022-01-17 23:30:43,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:43,412 INFO L276 IsEmpty]: Start isEmpty. Operand 3392 states and 9093 transitions. [2022-01-17 23:30:43,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:30:43,416 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:43,416 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:43,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2022-01-17 23:30:43,416 INFO L402 AbstractCegarLoop]: === Iteration 170 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-17 23:30:43,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:43,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1200429820, now seen corresponding path program 167 times [2022-01-17 23:30:43,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:43,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406954528] [2022-01-17 23:30:43,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:43,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:43,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:43,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:43,944 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:43,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406954528] [2022-01-17 23:30:43,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406954528] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:43,944 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:43,944 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:30:43,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636635916] [2022-01-17 23:30:43,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:43,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:30:43,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:43,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:30:43,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:30:43,945 INFO L87 Difference]: Start difference. First operand 3392 states and 9093 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:46,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:46,525 INFO L93 Difference]: Finished difference Result 5417 states and 13978 transitions. [2022-01-17 23:30:46,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:30:46,525 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:30:46,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:46,532 INFO L225 Difference]: With dead ends: 5417 [2022-01-17 23:30:46,532 INFO L226 Difference]: Without dead ends: 5417 [2022-01-17 23:30:46,533 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=549, Invalid=1613, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:30:46,533 INFO L933 BasicCegarLoop]: 314 mSDtfsCounter, 781 mSDsluCounter, 3729 mSDsCounter, 0 mSdLazyCounter, 1635 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 781 SdHoareTripleChecker+Valid, 3843 SdHoareTripleChecker+Invalid, 1682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:46,533 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [781 Valid, 3843 Invalid, 1682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1635 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:30:46,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5417 states. [2022-01-17 23:30:46,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5417 to 3370. [2022-01-17 23:30:46,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3370 states, 3368 states have (on average 2.6814133016627077) internal successors, (9031), 3369 states have internal predecessors, (9031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:46,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3370 states to 3370 states and 9031 transitions. [2022-01-17 23:30:46,582 INFO L78 Accepts]: Start accepts. Automaton has 3370 states and 9031 transitions. Word has length 106 [2022-01-17 23:30:46,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:46,582 INFO L470 AbstractCegarLoop]: Abstraction has 3370 states and 9031 transitions. [2022-01-17 23:30:46,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:46,582 INFO L276 IsEmpty]: Start isEmpty. Operand 3370 states and 9031 transitions. [2022-01-17 23:30:46,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:30:46,586 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:46,586 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:46,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2022-01-17 23:30:46,586 INFO L402 AbstractCegarLoop]: === Iteration 171 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-17 23:30:46,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:46,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1106837842, now seen corresponding path program 168 times [2022-01-17 23:30:46,586 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:46,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017274922] [2022-01-17 23:30:46,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:46,587 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:46,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:47,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:47,159 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:47,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017274922] [2022-01-17 23:30:47,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017274922] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:47,159 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:47,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:30:47,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166157287] [2022-01-17 23:30:47,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:47,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:30:47,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:47,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:30:47,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:30:47,160 INFO L87 Difference]: Start difference. First operand 3370 states and 9031 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:50,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:50,560 INFO L93 Difference]: Finished difference Result 5315 states and 13757 transitions. [2022-01-17 23:30:50,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-17 23:30:50,560 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:30:50,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:50,566 INFO L225 Difference]: With dead ends: 5315 [2022-01-17 23:30:50,566 INFO L226 Difference]: Without dead ends: 5315 [2022-01-17 23:30:50,566 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=626, Invalid=1824, Unknown=0, NotChecked=0, Total=2450 [2022-01-17 23:30:50,566 INFO L933 BasicCegarLoop]: 293 mSDtfsCounter, 743 mSDsluCounter, 3491 mSDsCounter, 0 mSdLazyCounter, 1538 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 743 SdHoareTripleChecker+Valid, 3621 SdHoareTripleChecker+Invalid, 1598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:50,566 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [743 Valid, 3621 Invalid, 1598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1538 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:30:50,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5315 states. [2022-01-17 23:30:50,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5315 to 3372. [2022-01-17 23:30:50,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3372 states, 3370 states have (on average 2.681305637982196) internal successors, (9036), 3371 states have internal predecessors, (9036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:50,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3372 states to 3372 states and 9036 transitions. [2022-01-17 23:30:50,610 INFO L78 Accepts]: Start accepts. Automaton has 3372 states and 9036 transitions. Word has length 106 [2022-01-17 23:30:50,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:50,611 INFO L470 AbstractCegarLoop]: Abstraction has 3372 states and 9036 transitions. [2022-01-17 23:30:50,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:50,611 INFO L276 IsEmpty]: Start isEmpty. Operand 3372 states and 9036 transitions. [2022-01-17 23:30:50,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:30:50,614 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:50,614 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:50,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2022-01-17 23:30:50,615 INFO L402 AbstractCegarLoop]: === Iteration 172 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-17 23:30:50,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:50,615 INFO L85 PathProgramCache]: Analyzing trace with hash -601170684, now seen corresponding path program 169 times [2022-01-17 23:30:50,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:50,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227920574] [2022-01-17 23:30:50,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:50,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:50,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:51,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:51,120 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:51,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227920574] [2022-01-17 23:30:51,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227920574] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:51,120 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:51,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:30:51,121 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582990635] [2022-01-17 23:30:51,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:51,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:30:51,121 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:51,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:30:51,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:30:51,121 INFO L87 Difference]: Start difference. First operand 3372 states and 9036 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:53,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:53,448 INFO L93 Difference]: Finished difference Result 5370 states and 13868 transitions. [2022-01-17 23:30:53,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-17 23:30:53,448 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:30:53,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:53,454 INFO L225 Difference]: With dead ends: 5370 [2022-01-17 23:30:53,454 INFO L226 Difference]: Without dead ends: 5370 [2022-01-17 23:30:53,454 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=500, Invalid=1570, Unknown=0, NotChecked=0, Total=2070 [2022-01-17 23:30:53,455 INFO L933 BasicCegarLoop]: 298 mSDtfsCounter, 795 mSDsluCounter, 3613 mSDsCounter, 0 mSdLazyCounter, 1608 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 795 SdHoareTripleChecker+Valid, 3718 SdHoareTripleChecker+Invalid, 1648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:53,455 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [795 Valid, 3718 Invalid, 1648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1608 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:30:53,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5370 states. [2022-01-17 23:30:53,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5370 to 3374. [2022-01-17 23:30:53,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3374 states, 3372 states have (on average 2.6811981020166074) internal successors, (9041), 3373 states have internal predecessors, (9041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:53,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3374 states to 3374 states and 9041 transitions. [2022-01-17 23:30:53,498 INFO L78 Accepts]: Start accepts. Automaton has 3374 states and 9041 transitions. Word has length 106 [2022-01-17 23:30:53,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:53,498 INFO L470 AbstractCegarLoop]: Abstraction has 3374 states and 9041 transitions. [2022-01-17 23:30:53,498 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:53,498 INFO L276 IsEmpty]: Start isEmpty. Operand 3374 states and 9041 transitions. [2022-01-17 23:30:53,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:30:53,501 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:53,502 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:53,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2022-01-17 23:30:53,502 INFO L402 AbstractCegarLoop]: === Iteration 173 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-17 23:30:53,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:53,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1211063248, now seen corresponding path program 170 times [2022-01-17 23:30:53,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:53,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943907652] [2022-01-17 23:30:53,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:53,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:53,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:54,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:54,005 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:54,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943907652] [2022-01-17 23:30:54,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943907652] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:54,005 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:54,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:30:54,006 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437653958] [2022-01-17 23:30:54,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:54,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:30:54,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:54,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:30:54,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:30:54,013 INFO L87 Difference]: Start difference. First operand 3374 states and 9041 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:56,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:56,327 INFO L93 Difference]: Finished difference Result 5319 states and 13754 transitions. [2022-01-17 23:30:56,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-17 23:30:56,327 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:30:56,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:56,333 INFO L225 Difference]: With dead ends: 5319 [2022-01-17 23:30:56,333 INFO L226 Difference]: Without dead ends: 5319 [2022-01-17 23:30:56,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=500, Invalid=1570, Unknown=0, NotChecked=0, Total=2070 [2022-01-17 23:30:56,334 INFO L933 BasicCegarLoop]: 299 mSDtfsCounter, 736 mSDsluCounter, 3495 mSDsCounter, 0 mSdLazyCounter, 1575 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 736 SdHoareTripleChecker+Valid, 3598 SdHoareTripleChecker+Invalid, 1615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:56,334 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [736 Valid, 3598 Invalid, 1615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1575 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:30:56,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5319 states. [2022-01-17 23:30:56,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5319 to 3378. [2022-01-17 23:30:56,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3378 states, 3376 states have (on average 2.680983412322275) internal successors, (9051), 3377 states have internal predecessors, (9051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:56,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3378 states to 3378 states and 9051 transitions. [2022-01-17 23:30:56,374 INFO L78 Accepts]: Start accepts. Automaton has 3378 states and 9051 transitions. Word has length 106 [2022-01-17 23:30:56,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:56,375 INFO L470 AbstractCegarLoop]: Abstraction has 3378 states and 9051 transitions. [2022-01-17 23:30:56,375 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:56,375 INFO L276 IsEmpty]: Start isEmpty. Operand 3378 states and 9051 transitions. [2022-01-17 23:30:56,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:30:56,378 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:56,378 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:56,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2022-01-17 23:30:56,378 INFO L402 AbstractCegarLoop]: === Iteration 174 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-17 23:30:56,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:56,379 INFO L85 PathProgramCache]: Analyzing trace with hash 2020913650, now seen corresponding path program 171 times [2022-01-17 23:30:56,379 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:56,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197402708] [2022-01-17 23:30:56,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:56,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:56,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:56,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:56,881 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:56,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197402708] [2022-01-17 23:30:56,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197402708] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:56,881 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:56,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:30:56,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566070738] [2022-01-17 23:30:56,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:56,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:30:56,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:56,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:30:56,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:30:56,882 INFO L87 Difference]: Start difference. First operand 3378 states and 9051 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:59,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:59,079 INFO L93 Difference]: Finished difference Result 5268 states and 13640 transitions. [2022-01-17 23:30:59,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-17 23:30:59,079 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:30:59,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:59,085 INFO L225 Difference]: With dead ends: 5268 [2022-01-17 23:30:59,085 INFO L226 Difference]: Without dead ends: 5268 [2022-01-17 23:30:59,085 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=500, Invalid=1570, Unknown=0, NotChecked=0, Total=2070 [2022-01-17 23:30:59,086 INFO L933 BasicCegarLoop]: 299 mSDtfsCounter, 738 mSDsluCounter, 3164 mSDsCounter, 0 mSdLazyCounter, 1260 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 738 SdHoareTripleChecker+Valid, 3285 SdHoareTripleChecker+Invalid, 1299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:59,086 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [738 Valid, 3285 Invalid, 1299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1260 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:30:59,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5268 states. [2022-01-17 23:30:59,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5268 to 3380. [2022-01-17 23:30:59,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3380 states, 3378 states have (on average 2.680876258140912) internal successors, (9056), 3379 states have internal predecessors, (9056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:59,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3380 states to 3380 states and 9056 transitions. [2022-01-17 23:30:59,130 INFO L78 Accepts]: Start accepts. Automaton has 3380 states and 9056 transitions. Word has length 106 [2022-01-17 23:30:59,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:59,130 INFO L470 AbstractCegarLoop]: Abstraction has 3380 states and 9056 transitions. [2022-01-17 23:30:59,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:59,130 INFO L276 IsEmpty]: Start isEmpty. Operand 3380 states and 9056 transitions. [2022-01-17 23:30:59,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:30:59,134 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:59,134 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:59,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2022-01-17 23:30:59,134 INFO L402 AbstractCegarLoop]: === Iteration 175 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-17 23:30:59,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:59,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1782749376, now seen corresponding path program 172 times [2022-01-17 23:30:59,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:59,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457717273] [2022-01-17 23:30:59,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:59,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:59,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:59,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:59,682 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:59,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457717273] [2022-01-17 23:30:59,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457717273] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:59,682 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:59,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:30:59,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824027616] [2022-01-17 23:30:59,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:59,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:30:59,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:59,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:30:59,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:30:59,683 INFO L87 Difference]: Start difference. First operand 3380 states and 9056 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:02,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:02,287 INFO L93 Difference]: Finished difference Result 5123 states and 13350 transitions. [2022-01-17 23:31:02,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:31:02,288 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:31:02,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:02,294 INFO L225 Difference]: With dead ends: 5123 [2022-01-17 23:31:02,294 INFO L226 Difference]: Without dead ends: 5123 [2022-01-17 23:31:02,294 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=534, Invalid=1628, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:31:02,294 INFO L933 BasicCegarLoop]: 294 mSDtfsCounter, 761 mSDsluCounter, 3373 mSDsCounter, 0 mSdLazyCounter, 1410 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 761 SdHoareTripleChecker+Valid, 3487 SdHoareTripleChecker+Invalid, 1466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:02,294 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [761 Valid, 3487 Invalid, 1466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1410 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:31:02,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5123 states. [2022-01-17 23:31:02,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5123 to 3356. [2022-01-17 23:31:02,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3356 states, 3354 states have (on average 2.680083482409064) internal successors, (8989), 3355 states have internal predecessors, (8989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:02,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3356 states to 3356 states and 8989 transitions. [2022-01-17 23:31:02,337 INFO L78 Accepts]: Start accepts. Automaton has 3356 states and 8989 transitions. Word has length 106 [2022-01-17 23:31:02,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:02,337 INFO L470 AbstractCegarLoop]: Abstraction has 3356 states and 8989 transitions. [2022-01-17 23:31:02,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:02,337 INFO L276 IsEmpty]: Start isEmpty. Operand 3356 states and 8989 transitions. [2022-01-17 23:31:02,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:31:02,340 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:02,341 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:02,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2022-01-17 23:31:02,341 INFO L402 AbstractCegarLoop]: === Iteration 176 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-17 23:31:02,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:02,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1202418534, now seen corresponding path program 173 times [2022-01-17 23:31:02,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:02,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840138326] [2022-01-17 23:31:02,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:02,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:02,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:02,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:02,853 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:02,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840138326] [2022-01-17 23:31:02,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840138326] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:02,853 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:02,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:31:02,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064756262] [2022-01-17 23:31:02,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:02,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:31:02,853 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:02,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:31:02,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=527, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:31:02,854 INFO L87 Difference]: Start difference. First operand 3356 states and 8989 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:05,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:05,347 INFO L93 Difference]: Finished difference Result 7130 states and 18717 transitions. [2022-01-17 23:31:05,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-17 23:31:05,347 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:31:05,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:05,357 INFO L225 Difference]: With dead ends: 7130 [2022-01-17 23:31:05,357 INFO L226 Difference]: Without dead ends: 7130 [2022-01-17 23:31:05,357 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=529, Invalid=1363, Unknown=0, NotChecked=0, Total=1892 [2022-01-17 23:31:05,357 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 981 mSDsluCounter, 3082 mSDsCounter, 0 mSdLazyCounter, 1246 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 981 SdHoareTripleChecker+Valid, 3250 SdHoareTripleChecker+Invalid, 1307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:05,358 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [981 Valid, 3250 Invalid, 1307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1246 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:31:05,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7130 states. [2022-01-17 23:31:05,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7130 to 3636. [2022-01-17 23:31:05,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3636 states, 3634 states have (on average 2.704733076499725) internal successors, (9829), 3635 states have internal predecessors, (9829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:05,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3636 states to 3636 states and 9829 transitions. [2022-01-17 23:31:05,419 INFO L78 Accepts]: Start accepts. Automaton has 3636 states and 9829 transitions. Word has length 106 [2022-01-17 23:31:05,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:05,419 INFO L470 AbstractCegarLoop]: Abstraction has 3636 states and 9829 transitions. [2022-01-17 23:31:05,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:05,420 INFO L276 IsEmpty]: Start isEmpty. Operand 3636 states and 9829 transitions. [2022-01-17 23:31:05,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:31:05,423 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:05,423 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:05,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2022-01-17 23:31:05,424 INFO L402 AbstractCegarLoop]: === Iteration 177 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-17 23:31:05,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:05,424 INFO L85 PathProgramCache]: Analyzing trace with hash -329483074, now seen corresponding path program 174 times [2022-01-17 23:31:05,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:05,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760182732] [2022-01-17 23:31:05,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:05,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:05,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:05,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:05,941 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:05,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760182732] [2022-01-17 23:31:05,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760182732] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:05,941 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:05,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:31:05,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707684441] [2022-01-17 23:31:05,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:05,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:31:05,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:05,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:31:05,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:31:05,942 INFO L87 Difference]: Start difference. First operand 3636 states and 9829 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:08,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:08,617 INFO L93 Difference]: Finished difference Result 6860 states and 18033 transitions. [2022-01-17 23:31:08,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-17 23:31:08,618 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:31:08,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:08,627 INFO L225 Difference]: With dead ends: 6860 [2022-01-17 23:31:08,627 INFO L226 Difference]: Without dead ends: 6860 [2022-01-17 23:31:08,627 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=538, Invalid=1442, Unknown=0, NotChecked=0, Total=1980 [2022-01-17 23:31:08,627 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 1048 mSDsluCounter, 3157 mSDsCounter, 0 mSdLazyCounter, 1288 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1048 SdHoareTripleChecker+Valid, 3326 SdHoareTripleChecker+Invalid, 1360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 1288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:08,627 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1048 Valid, 3326 Invalid, 1360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 1288 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:31:08,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6860 states. [2022-01-17 23:31:08,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6860 to 3594. [2022-01-17 23:31:08,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3594 states, 3592 states have (on average 2.701280623608018) internal successors, (9703), 3593 states have internal predecessors, (9703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:08,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3594 states to 3594 states and 9703 transitions. [2022-01-17 23:31:08,683 INFO L78 Accepts]: Start accepts. Automaton has 3594 states and 9703 transitions. Word has length 106 [2022-01-17 23:31:08,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:08,683 INFO L470 AbstractCegarLoop]: Abstraction has 3594 states and 9703 transitions. [2022-01-17 23:31:08,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:08,683 INFO L276 IsEmpty]: Start isEmpty. Operand 3594 states and 9703 transitions. [2022-01-17 23:31:08,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:31:08,687 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:08,687 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:08,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2022-01-17 23:31:08,687 INFO L402 AbstractCegarLoop]: === Iteration 178 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-17 23:31:08,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:08,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1717293270, now seen corresponding path program 175 times [2022-01-17 23:31:08,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:08,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651613705] [2022-01-17 23:31:08,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:08,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:08,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:09,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:09,205 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:09,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651613705] [2022-01-17 23:31:09,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651613705] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:09,205 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:09,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:31:09,205 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855063743] [2022-01-17 23:31:09,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:09,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:31:09,206 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:09,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:31:09,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:31:09,206 INFO L87 Difference]: Start difference. First operand 3594 states and 9703 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:11,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:11,802 INFO L93 Difference]: Finished difference Result 6984 states and 18264 transitions. [2022-01-17 23:31:11,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-17 23:31:11,803 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:31:11,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:11,812 INFO L225 Difference]: With dead ends: 6984 [2022-01-17 23:31:11,812 INFO L226 Difference]: Without dead ends: 6984 [2022-01-17 23:31:11,813 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=556, Invalid=1514, Unknown=0, NotChecked=0, Total=2070 [2022-01-17 23:31:11,813 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 1088 mSDsluCounter, 2721 mSDsCounter, 0 mSdLazyCounter, 1116 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1088 SdHoareTripleChecker+Valid, 2876 SdHoareTripleChecker+Invalid, 1169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:11,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1088 Valid, 2876 Invalid, 1169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1116 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:31:11,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6984 states. [2022-01-17 23:31:11,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6984 to 3552. [2022-01-17 23:31:11,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3552 states, 3550 states have (on average 2.6977464788732393) internal successors, (9577), 3551 states have internal predecessors, (9577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:11,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3552 states to 3552 states and 9577 transitions. [2022-01-17 23:31:11,876 INFO L78 Accepts]: Start accepts. Automaton has 3552 states and 9577 transitions. Word has length 106 [2022-01-17 23:31:11,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:11,876 INFO L470 AbstractCegarLoop]: Abstraction has 3552 states and 9577 transitions. [2022-01-17 23:31:11,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:11,877 INFO L276 IsEmpty]: Start isEmpty. Operand 3552 states and 9577 transitions. [2022-01-17 23:31:11,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:31:11,891 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:11,891 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:11,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2022-01-17 23:31:11,891 INFO L402 AbstractCegarLoop]: === Iteration 179 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-17 23:31:11,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:11,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1607256498, now seen corresponding path program 176 times [2022-01-17 23:31:11,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:11,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533104813] [2022-01-17 23:31:11,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:11,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:11,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:12,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:12,393 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:12,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533104813] [2022-01-17 23:31:12,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533104813] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:12,393 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:12,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:31:12,393 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791898527] [2022-01-17 23:31:12,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:12,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:31:12,394 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:12,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:31:12,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:31:12,394 INFO L87 Difference]: Start difference. First operand 3552 states and 9577 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:14,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:14,980 INFO L93 Difference]: Finished difference Result 6960 states and 18210 transitions. [2022-01-17 23:31:14,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-17 23:31:14,981 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:31:14,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:14,989 INFO L225 Difference]: With dead ends: 6960 [2022-01-17 23:31:14,990 INFO L226 Difference]: Without dead ends: 6960 [2022-01-17 23:31:14,990 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=541, Invalid=1529, Unknown=0, NotChecked=0, Total=2070 [2022-01-17 23:31:14,999 INFO L933 BasicCegarLoop]: 298 mSDtfsCounter, 1040 mSDsluCounter, 3204 mSDsCounter, 0 mSdLazyCounter, 1410 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1040 SdHoareTripleChecker+Valid, 3330 SdHoareTripleChecker+Invalid, 1461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:14,999 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1040 Valid, 3330 Invalid, 1461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1410 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:31:15,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6960 states. [2022-01-17 23:31:15,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6960 to 3468. [2022-01-17 23:31:15,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3468 states, 3466 states have (on average 2.6904212348528564) internal successors, (9325), 3467 states have internal predecessors, (9325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:15,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3468 states to 3468 states and 9325 transitions. [2022-01-17 23:31:15,060 INFO L78 Accepts]: Start accepts. Automaton has 3468 states and 9325 transitions. Word has length 106 [2022-01-17 23:31:15,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:15,060 INFO L470 AbstractCegarLoop]: Abstraction has 3468 states and 9325 transitions. [2022-01-17 23:31:15,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:15,060 INFO L276 IsEmpty]: Start isEmpty. Operand 3468 states and 9325 transitions. [2022-01-17 23:31:15,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:31:15,064 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:15,064 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:15,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2022-01-17 23:31:15,064 INFO L402 AbstractCegarLoop]: === Iteration 180 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-17 23:31:15,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:15,064 INFO L85 PathProgramCache]: Analyzing trace with hash -910464574, now seen corresponding path program 177 times [2022-01-17 23:31:15,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:15,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824793292] [2022-01-17 23:31:15,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:15,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:15,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:15,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:15,367 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:15,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824793292] [2022-01-17 23:31:15,367 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824793292] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:15,367 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:15,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:31:15,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188467380] [2022-01-17 23:31:15,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:15,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:31:15,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:15,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:31:15,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:31:15,368 INFO L87 Difference]: Start difference. First operand 3468 states and 9325 transitions. Second operand has 19 states, 19 states have (on average 5.578947368421052) internal successors, (106), 19 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:16,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:16,149 INFO L93 Difference]: Finished difference Result 4131 states and 10649 transitions. [2022-01-17 23:31:16,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-17 23:31:16,149 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.578947368421052) internal successors, (106), 19 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:31:16,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:16,154 INFO L225 Difference]: With dead ends: 4131 [2022-01-17 23:31:16,154 INFO L226 Difference]: Without dead ends: 4131 [2022-01-17 23:31:16,155 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=295, Invalid=895, Unknown=0, NotChecked=0, Total=1190 [2022-01-17 23:31:16,155 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 588 mSDsluCounter, 1663 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 588 SdHoareTripleChecker+Valid, 1785 SdHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:16,155 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [588 Valid, 1785 Invalid, 629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:31:16,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4131 states. [2022-01-17 23:31:16,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4131 to 3490. [2022-01-17 23:31:16,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3490 states, 3488 states have (on average 2.688646788990826) internal successors, (9378), 3489 states have internal predecessors, (9378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:16,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3490 states to 3490 states and 9378 transitions. [2022-01-17 23:31:16,202 INFO L78 Accepts]: Start accepts. Automaton has 3490 states and 9378 transitions. Word has length 106 [2022-01-17 23:31:16,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:16,202 INFO L470 AbstractCegarLoop]: Abstraction has 3490 states and 9378 transitions. [2022-01-17 23:31:16,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.578947368421052) internal successors, (106), 19 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:16,203 INFO L276 IsEmpty]: Start isEmpty. Operand 3490 states and 9378 transitions. [2022-01-17 23:31:16,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:31:16,206 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:16,206 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:16,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2022-01-17 23:31:16,207 INFO L402 AbstractCegarLoop]: === Iteration 181 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-17 23:31:16,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:16,207 INFO L85 PathProgramCache]: Analyzing trace with hash -849785010, now seen corresponding path program 178 times [2022-01-17 23:31:16,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:16,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358929129] [2022-01-17 23:31:16,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:16,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:16,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:16,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:16,720 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:16,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358929129] [2022-01-17 23:31:16,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358929129] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:16,720 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:16,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:31:16,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745401702] [2022-01-17 23:31:16,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:16,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:31:16,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:16,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:31:16,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:31:16,721 INFO L87 Difference]: Start difference. First operand 3490 states and 9378 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:19,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:19,169 INFO L93 Difference]: Finished difference Result 6090 states and 15903 transitions. [2022-01-17 23:31:19,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-17 23:31:19,169 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:31:19,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:19,177 INFO L225 Difference]: With dead ends: 6090 [2022-01-17 23:31:19,177 INFO L226 Difference]: Without dead ends: 6090 [2022-01-17 23:31:19,177 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=526, Invalid=1544, Unknown=0, NotChecked=0, Total=2070 [2022-01-17 23:31:19,177 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 992 mSDsluCounter, 3054 mSDsCounter, 0 mSdLazyCounter, 1337 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 992 SdHoareTripleChecker+Valid, 3162 SdHoareTripleChecker+Invalid, 1385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:19,177 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [992 Valid, 3162 Invalid, 1385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1337 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:31:19,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6090 states. [2022-01-17 23:31:19,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6090 to 3496. [2022-01-17 23:31:19,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3496 states, 3494 states have (on average 2.6883228391528333) internal successors, (9393), 3495 states have internal predecessors, (9393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:19,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3496 states to 3496 states and 9393 transitions. [2022-01-17 23:31:19,232 INFO L78 Accepts]: Start accepts. Automaton has 3496 states and 9393 transitions. Word has length 106 [2022-01-17 23:31:19,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:19,232 INFO L470 AbstractCegarLoop]: Abstraction has 3496 states and 9393 transitions. [2022-01-17 23:31:19,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:19,232 INFO L276 IsEmpty]: Start isEmpty. Operand 3496 states and 9393 transitions. [2022-01-17 23:31:19,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:31:19,236 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:19,236 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:19,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2022-01-17 23:31:19,236 INFO L402 AbstractCegarLoop]: === Iteration 182 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-17 23:31:19,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:19,236 INFO L85 PathProgramCache]: Analyzing trace with hash -560484722, now seen corresponding path program 179 times [2022-01-17 23:31:19,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:19,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593725260] [2022-01-17 23:31:19,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:19,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:19,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:19,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:19,762 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:19,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593725260] [2022-01-17 23:31:19,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593725260] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:19,762 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:19,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:31:19,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768904016] [2022-01-17 23:31:19,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:19,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:31:19,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:19,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:31:19,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=527, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:31:19,763 INFO L87 Difference]: Start difference. First operand 3496 states and 9393 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:22,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:22,247 INFO L93 Difference]: Finished difference Result 9247 states and 24164 transitions. [2022-01-17 23:31:22,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-17 23:31:22,247 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:31:22,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:22,259 INFO L225 Difference]: With dead ends: 9247 [2022-01-17 23:31:22,259 INFO L226 Difference]: Without dead ends: 9247 [2022-01-17 23:31:22,259 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=529, Invalid=1363, Unknown=0, NotChecked=0, Total=1892 [2022-01-17 23:31:22,260 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 931 mSDsluCounter, 2932 mSDsCounter, 0 mSdLazyCounter, 1195 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 931 SdHoareTripleChecker+Valid, 3092 SdHoareTripleChecker+Invalid, 1246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:22,260 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [931 Valid, 3092 Invalid, 1246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1195 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:31:22,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9247 states. [2022-01-17 23:31:22,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9247 to 3692. [2022-01-17 23:31:22,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3692 states, 3690 states have (on average 2.704878048780488) internal successors, (9981), 3691 states have internal predecessors, (9981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:22,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3692 states to 3692 states and 9981 transitions. [2022-01-17 23:31:22,333 INFO L78 Accepts]: Start accepts. Automaton has 3692 states and 9981 transitions. Word has length 106 [2022-01-17 23:31:22,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:22,333 INFO L470 AbstractCegarLoop]: Abstraction has 3692 states and 9981 transitions. [2022-01-17 23:31:22,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:22,334 INFO L276 IsEmpty]: Start isEmpty. Operand 3692 states and 9981 transitions. [2022-01-17 23:31:22,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:31:22,337 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:22,337 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:22,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2022-01-17 23:31:22,338 INFO L402 AbstractCegarLoop]: === Iteration 183 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-17 23:31:22,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:22,338 INFO L85 PathProgramCache]: Analyzing trace with hash 312450738, now seen corresponding path program 180 times [2022-01-17 23:31:22,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:22,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318281434] [2022-01-17 23:31:22,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:22,338 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:22,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:22,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:22,862 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:22,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318281434] [2022-01-17 23:31:22,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318281434] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:22,863 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:22,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:31:22,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445005896] [2022-01-17 23:31:22,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:22,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:31:22,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:22,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:31:22,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:31:22,863 INFO L87 Difference]: Start difference. First operand 3692 states and 9981 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:25,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:25,561 INFO L93 Difference]: Finished difference Result 8977 states and 23480 transitions. [2022-01-17 23:31:25,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-17 23:31:25,562 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:31:25,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:25,573 INFO L225 Difference]: With dead ends: 8977 [2022-01-17 23:31:25,573 INFO L226 Difference]: Without dead ends: 8977 [2022-01-17 23:31:25,573 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=538, Invalid=1442, Unknown=0, NotChecked=0, Total=1980 [2022-01-17 23:31:25,574 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 969 mSDsluCounter, 3056 mSDsCounter, 0 mSdLazyCounter, 1300 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 969 SdHoareTripleChecker+Valid, 3210 SdHoareTripleChecker+Invalid, 1359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:25,574 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [969 Valid, 3210 Invalid, 1359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1300 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:31:25,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8977 states. [2022-01-17 23:31:25,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8977 to 3650. [2022-01-17 23:31:25,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3650 states, 3648 states have (on average 2.7014802631578947) internal successors, (9855), 3649 states have internal predecessors, (9855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:25,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3650 states to 3650 states and 9855 transitions. [2022-01-17 23:31:25,662 INFO L78 Accepts]: Start accepts. Automaton has 3650 states and 9855 transitions. Word has length 106 [2022-01-17 23:31:25,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:25,662 INFO L470 AbstractCegarLoop]: Abstraction has 3650 states and 9855 transitions. [2022-01-17 23:31:25,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:25,662 INFO L276 IsEmpty]: Start isEmpty. Operand 3650 states and 9855 transitions. [2022-01-17 23:31:25,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:31:25,666 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:25,666 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:25,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2022-01-17 23:31:25,667 INFO L402 AbstractCegarLoop]: === Iteration 184 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-17 23:31:25,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:25,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1935740214, now seen corresponding path program 181 times [2022-01-17 23:31:25,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:25,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465898846] [2022-01-17 23:31:25,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:25,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:25,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:26,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:26,208 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:26,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465898846] [2022-01-17 23:31:26,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465898846] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:26,208 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:26,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:31:26,208 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093259662] [2022-01-17 23:31:26,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:26,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:31:26,208 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:26,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:31:26,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:31:26,209 INFO L87 Difference]: Start difference. First operand 3650 states and 9855 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:28,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:28,986 INFO L93 Difference]: Finished difference Result 9101 states and 23711 transitions. [2022-01-17 23:31:28,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-17 23:31:28,986 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:31:28,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:28,996 INFO L225 Difference]: With dead ends: 9101 [2022-01-17 23:31:28,996 INFO L226 Difference]: Without dead ends: 9101 [2022-01-17 23:31:28,996 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=556, Invalid=1514, Unknown=0, NotChecked=0, Total=2070 [2022-01-17 23:31:28,996 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 1070 mSDsluCounter, 3476 mSDsCounter, 0 mSdLazyCounter, 1508 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1070 SdHoareTripleChecker+Valid, 3602 SdHoareTripleChecker+Invalid, 1556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:28,997 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1070 Valid, 3602 Invalid, 1556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1508 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:31:29,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9101 states. [2022-01-17 23:31:29,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9101 to 3608. [2022-01-17 23:31:29,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3608 states, 3606 states have (on average 2.6980033277870215) internal successors, (9729), 3607 states have internal predecessors, (9729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:29,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3608 states to 3608 states and 9729 transitions. [2022-01-17 23:31:29,059 INFO L78 Accepts]: Start accepts. Automaton has 3608 states and 9729 transitions. Word has length 106 [2022-01-17 23:31:29,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:29,059 INFO L470 AbstractCegarLoop]: Abstraction has 3608 states and 9729 transitions. [2022-01-17 23:31:29,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:29,059 INFO L276 IsEmpty]: Start isEmpty. Operand 3608 states and 9729 transitions. [2022-01-17 23:31:29,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:31:29,063 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:29,063 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:29,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2022-01-17 23:31:29,063 INFO L402 AbstractCegarLoop]: === Iteration 185 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-17 23:31:29,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:29,063 INFO L85 PathProgramCache]: Analyzing trace with hash -965322686, now seen corresponding path program 182 times [2022-01-17 23:31:29,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:29,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160157546] [2022-01-17 23:31:29,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:29,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:29,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:29,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:29,564 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:29,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160157546] [2022-01-17 23:31:29,564 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160157546] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:29,564 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:29,564 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:31:29,564 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677156409] [2022-01-17 23:31:29,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:29,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:31:29,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:29,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:31:29,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:31:29,565 INFO L87 Difference]: Start difference. First operand 3608 states and 9729 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:32,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:32,155 INFO L93 Difference]: Finished difference Result 8633 states and 22543 transitions. [2022-01-17 23:31:32,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-17 23:31:32,156 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:31:32,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:32,165 INFO L225 Difference]: With dead ends: 8633 [2022-01-17 23:31:32,165 INFO L226 Difference]: Without dead ends: 8633 [2022-01-17 23:31:32,165 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=541, Invalid=1529, Unknown=0, NotChecked=0, Total=2070 [2022-01-17 23:31:32,165 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 903 mSDsluCounter, 3307 mSDsCounter, 0 mSdLazyCounter, 1393 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 903 SdHoareTripleChecker+Valid, 3432 SdHoareTripleChecker+Invalid, 1444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:32,165 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [903 Valid, 3432 Invalid, 1444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1393 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:31:32,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8633 states. [2022-01-17 23:31:32,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8633 to 3524. [2022-01-17 23:31:32,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3524 states, 3522 states have (on average 2.6908006814310053) internal successors, (9477), 3523 states have internal predecessors, (9477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:32,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3524 states to 3524 states and 9477 transitions. [2022-01-17 23:31:32,226 INFO L78 Accepts]: Start accepts. Automaton has 3524 states and 9477 transitions. Word has length 106 [2022-01-17 23:31:32,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:32,226 INFO L470 AbstractCegarLoop]: Abstraction has 3524 states and 9477 transitions. [2022-01-17 23:31:32,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:32,226 INFO L276 IsEmpty]: Start isEmpty. Operand 3524 states and 9477 transitions. [2022-01-17 23:31:32,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:31:32,230 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:32,230 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:32,230 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2022-01-17 23:31:32,230 INFO L402 AbstractCegarLoop]: === Iteration 186 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-17 23:31:32,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:32,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1799965976, now seen corresponding path program 183 times [2022-01-17 23:31:32,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:32,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768632438] [2022-01-17 23:31:32,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:32,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:32,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:32,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:32,727 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:32,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768632438] [2022-01-17 23:31:32,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768632438] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:32,727 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:32,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:31:32,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060993115] [2022-01-17 23:31:32,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:32,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:31:32,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:32,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:31:32,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=525, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:31:32,728 INFO L87 Difference]: Start difference. First operand 3524 states and 9477 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:35,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:35,285 INFO L93 Difference]: Finished difference Result 8366 states and 21932 transitions. [2022-01-17 23:31:35,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-17 23:31:35,285 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:31:35,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:35,296 INFO L225 Difference]: With dead ends: 8366 [2022-01-17 23:31:35,296 INFO L226 Difference]: Without dead ends: 8366 [2022-01-17 23:31:35,296 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=531, Invalid=1361, Unknown=0, NotChecked=0, Total=1892 [2022-01-17 23:31:35,297 INFO L933 BasicCegarLoop]: 317 mSDtfsCounter, 1032 mSDsluCounter, 3066 mSDsCounter, 0 mSdLazyCounter, 1208 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1032 SdHoareTripleChecker+Valid, 3232 SdHoareTripleChecker+Invalid, 1266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:35,297 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1032 Valid, 3232 Invalid, 1266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1208 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:31:35,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8366 states. [2022-01-17 23:31:35,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8366 to 3622. [2022-01-17 23:31:35,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3622 states, 3620 states have (on average 2.699171270718232) internal successors, (9771), 3621 states have internal predecessors, (9771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:35,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3622 states to 3622 states and 9771 transitions. [2022-01-17 23:31:35,365 INFO L78 Accepts]: Start accepts. Automaton has 3622 states and 9771 transitions. Word has length 106 [2022-01-17 23:31:35,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:35,365 INFO L470 AbstractCegarLoop]: Abstraction has 3622 states and 9771 transitions. [2022-01-17 23:31:35,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:35,365 INFO L276 IsEmpty]: Start isEmpty. Operand 3622 states and 9771 transitions. [2022-01-17 23:31:35,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:31:35,369 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:35,369 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:35,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2022-01-17 23:31:35,369 INFO L402 AbstractCegarLoop]: === Iteration 187 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-17 23:31:35,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:35,370 INFO L85 PathProgramCache]: Analyzing trace with hash 2038161406, now seen corresponding path program 184 times [2022-01-17 23:31:35,370 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:35,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303407012] [2022-01-17 23:31:35,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:35,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:35,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:35,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:35,869 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:35,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303407012] [2022-01-17 23:31:35,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303407012] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:35,869 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:35,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:31:35,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038119407] [2022-01-17 23:31:35,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:35,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:31:35,869 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:35,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:31:35,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:31:35,870 INFO L87 Difference]: Start difference. First operand 3622 states and 9771 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:38,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:38,666 INFO L93 Difference]: Finished difference Result 8101 states and 21258 transitions. [2022-01-17 23:31:38,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-17 23:31:38,667 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:31:38,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:38,677 INFO L225 Difference]: With dead ends: 8101 [2022-01-17 23:31:38,677 INFO L226 Difference]: Without dead ends: 8101 [2022-01-17 23:31:38,677 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=540, Invalid=1440, Unknown=0, NotChecked=0, Total=1980 [2022-01-17 23:31:38,678 INFO L933 BasicCegarLoop]: 318 mSDtfsCounter, 957 mSDsluCounter, 3410 mSDsCounter, 0 mSdLazyCounter, 1405 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 957 SdHoareTripleChecker+Valid, 3566 SdHoareTripleChecker+Invalid, 1455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:38,678 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [957 Valid, 3566 Invalid, 1455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1405 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:31:38,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8101 states. [2022-01-17 23:31:38,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8101 to 3580. [2022-01-17 23:31:38,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3580 states, 3578 states have (on average 2.6956400223588597) internal successors, (9645), 3579 states have internal predecessors, (9645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:38,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3580 states to 3580 states and 9645 transitions. [2022-01-17 23:31:38,743 INFO L78 Accepts]: Start accepts. Automaton has 3580 states and 9645 transitions. Word has length 106 [2022-01-17 23:31:38,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:38,743 INFO L470 AbstractCegarLoop]: Abstraction has 3580 states and 9645 transitions. [2022-01-17 23:31:38,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:38,744 INFO L276 IsEmpty]: Start isEmpty. Operand 3580 states and 9645 transitions. [2022-01-17 23:31:38,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:31:38,747 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:38,747 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:38,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2022-01-17 23:31:38,747 INFO L402 AbstractCegarLoop]: === Iteration 188 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-17 23:31:38,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:38,748 INFO L85 PathProgramCache]: Analyzing trace with hash 761034730, now seen corresponding path program 185 times [2022-01-17 23:31:38,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:38,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709926610] [2022-01-17 23:31:38,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:38,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:38,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:39,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:39,315 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:39,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709926610] [2022-01-17 23:31:39,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709926610] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:39,316 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:39,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:31:39,316 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002598091] [2022-01-17 23:31:39,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:39,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:31:39,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:39,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:31:39,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:31:39,317 INFO L87 Difference]: Start difference. First operand 3580 states and 9645 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:42,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:42,469 INFO L93 Difference]: Finished difference Result 7920 states and 20636 transitions. [2022-01-17 23:31:42,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:31:42,470 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:31:42,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:42,478 INFO L225 Difference]: With dead ends: 7920 [2022-01-17 23:31:42,479 INFO L226 Difference]: Without dead ends: 7920 [2022-01-17 23:31:42,479 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=591, Invalid=1571, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:31:42,479 INFO L933 BasicCegarLoop]: 301 mSDtfsCounter, 1278 mSDsluCounter, 3179 mSDsCounter, 0 mSdLazyCounter, 1383 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1278 SdHoareTripleChecker+Valid, 3319 SdHoareTripleChecker+Invalid, 1463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 1383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:42,479 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1278 Valid, 3319 Invalid, 1463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 1383 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:31:42,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7920 states. [2022-01-17 23:31:42,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7920 to 3538. [2022-01-17 23:31:42,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3538 states, 3536 states have (on average 2.692024886877828) internal successors, (9519), 3537 states have internal predecessors, (9519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:42,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3538 states to 3538 states and 9519 transitions. [2022-01-17 23:31:42,538 INFO L78 Accepts]: Start accepts. Automaton has 3538 states and 9519 transitions. Word has length 106 [2022-01-17 23:31:42,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:42,539 INFO L470 AbstractCegarLoop]: Abstraction has 3538 states and 9519 transitions. [2022-01-17 23:31:42,539 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:42,539 INFO L276 IsEmpty]: Start isEmpty. Operand 3538 states and 9519 transitions. [2022-01-17 23:31:42,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:31:42,543 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:42,543 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:42,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2022-01-17 23:31:42,543 INFO L402 AbstractCegarLoop]: === Iteration 189 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-17 23:31:42,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:42,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1792090918, now seen corresponding path program 186 times [2022-01-17 23:31:42,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:42,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40940615] [2022-01-17 23:31:42,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:42,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:42,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:43,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:43,047 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:43,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40940615] [2022-01-17 23:31:43,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40940615] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:43,047 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:43,047 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:31:43,047 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096006629] [2022-01-17 23:31:43,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:43,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:31:43,047 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:43,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:31:43,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=525, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:31:43,048 INFO L87 Difference]: Start difference. First operand 3538 states and 9519 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:46,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:46,847 INFO L93 Difference]: Finished difference Result 9088 states and 23549 transitions. [2022-01-17 23:31:46,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:31:46,847 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:31:46,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:46,858 INFO L225 Difference]: With dead ends: 9088 [2022-01-17 23:31:46,858 INFO L226 Difference]: Without dead ends: 9088 [2022-01-17 23:31:46,859 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=782, Invalid=1768, Unknown=0, NotChecked=0, Total=2550 [2022-01-17 23:31:46,859 INFO L933 BasicCegarLoop]: 359 mSDtfsCounter, 1045 mSDsluCounter, 3646 mSDsCounter, 0 mSdLazyCounter, 1721 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1045 SdHoareTripleChecker+Valid, 3795 SdHoareTripleChecker+Invalid, 1773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:46,859 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1045 Valid, 3795 Invalid, 1773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1721 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-17 23:31:46,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9088 states. [2022-01-17 23:31:46,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9088 to 3594. [2022-01-17 23:31:46,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3594 states, 3592 states have (on average 2.696826280623608) internal successors, (9687), 3593 states have internal predecessors, (9687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:46,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3594 states to 3594 states and 9687 transitions. [2022-01-17 23:31:46,928 INFO L78 Accepts]: Start accepts. Automaton has 3594 states and 9687 transitions. Word has length 106 [2022-01-17 23:31:46,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:46,928 INFO L470 AbstractCegarLoop]: Abstraction has 3594 states and 9687 transitions. [2022-01-17 23:31:46,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:46,928 INFO L276 IsEmpty]: Start isEmpty. Operand 3594 states and 9687 transitions. [2022-01-17 23:31:46,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:31:46,932 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:46,932 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:46,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2022-01-17 23:31:46,932 INFO L402 AbstractCegarLoop]: === Iteration 190 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-17 23:31:46,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:46,933 INFO L85 PathProgramCache]: Analyzing trace with hash 2046036464, now seen corresponding path program 187 times [2022-01-17 23:31:46,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:46,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095407873] [2022-01-17 23:31:46,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:46,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:46,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:47,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:47,492 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:47,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095407873] [2022-01-17 23:31:47,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095407873] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:47,492 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:47,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:31:47,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044693178] [2022-01-17 23:31:47,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:47,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:31:47,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:47,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:31:47,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:31:47,493 INFO L87 Difference]: Start difference. First operand 3594 states and 9687 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:51,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:51,498 INFO L93 Difference]: Finished difference Result 8823 states and 22875 transitions. [2022-01-17 23:31:51,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-17 23:31:51,498 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:31:51,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:51,508 INFO L225 Difference]: With dead ends: 8823 [2022-01-17 23:31:51,508 INFO L226 Difference]: Without dead ends: 8823 [2022-01-17 23:31:51,508 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=778, Invalid=1874, Unknown=0, NotChecked=0, Total=2652 [2022-01-17 23:31:51,522 INFO L933 BasicCegarLoop]: 347 mSDtfsCounter, 1043 mSDsluCounter, 3302 mSDsCounter, 0 mSdLazyCounter, 1420 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1043 SdHoareTripleChecker+Valid, 3472 SdHoareTripleChecker+Invalid, 1481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:51,522 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1043 Valid, 3472 Invalid, 1481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1420 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:31:51,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8823 states. [2022-01-17 23:31:51,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8823 to 3552. [2022-01-17 23:31:51,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3552 states, 3550 states have (on average 2.6932394366197183) internal successors, (9561), 3551 states have internal predecessors, (9561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:51,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3552 states to 3552 states and 9561 transitions. [2022-01-17 23:31:51,585 INFO L78 Accepts]: Start accepts. Automaton has 3552 states and 9561 transitions. Word has length 106 [2022-01-17 23:31:51,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:51,585 INFO L470 AbstractCegarLoop]: Abstraction has 3552 states and 9561 transitions. [2022-01-17 23:31:51,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:51,586 INFO L276 IsEmpty]: Start isEmpty. Operand 3552 states and 9561 transitions. [2022-01-17 23:31:51,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:31:51,589 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:51,589 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:51,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2022-01-17 23:31:51,589 INFO L402 AbstractCegarLoop]: === Iteration 191 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-17 23:31:51,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:51,590 INFO L85 PathProgramCache]: Analyzing trace with hash 596469674, now seen corresponding path program 188 times [2022-01-17 23:31:51,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:51,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036127005] [2022-01-17 23:31:51,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:51,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:51,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:52,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:52,097 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:52,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036127005] [2022-01-17 23:31:52,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036127005] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:52,097 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:52,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:31:52,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604219017] [2022-01-17 23:31:52,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:52,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:31:52,098 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:52,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:31:52,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:31:52,098 INFO L87 Difference]: Start difference. First operand 3552 states and 9561 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:54,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:54,843 INFO L93 Difference]: Finished difference Result 8204 states and 21310 transitions. [2022-01-17 23:31:54,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:31:54,844 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:31:54,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:54,854 INFO L225 Difference]: With dead ends: 8204 [2022-01-17 23:31:54,854 INFO L226 Difference]: Without dead ends: 8204 [2022-01-17 23:31:54,855 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=592, Invalid=1570, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:31:54,855 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 1258 mSDsluCounter, 3290 mSDsCounter, 0 mSdLazyCounter, 1510 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1258 SdHoareTripleChecker+Valid, 3404 SdHoareTripleChecker+Invalid, 1583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:54,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1258 Valid, 3404 Invalid, 1583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 1510 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:31:54,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8204 states. [2022-01-17 23:31:54,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8204 to 3538. [2022-01-17 23:31:54,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3538 states, 3536 states have (on average 2.692024886877828) internal successors, (9519), 3537 states have internal predecessors, (9519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:54,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3538 states to 3538 states and 9519 transitions. [2022-01-17 23:31:54,923 INFO L78 Accepts]: Start accepts. Automaton has 3538 states and 9519 transitions. Word has length 106 [2022-01-17 23:31:54,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:54,923 INFO L470 AbstractCegarLoop]: Abstraction has 3538 states and 9519 transitions. [2022-01-17 23:31:54,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:54,923 INFO L276 IsEmpty]: Start isEmpty. Operand 3538 states and 9519 transitions. [2022-01-17 23:31:54,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:31:54,927 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:54,927 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:54,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2022-01-17 23:31:54,927 INFO L402 AbstractCegarLoop]: === Iteration 192 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-17 23:31:54,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:54,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1225862800, now seen corresponding path program 189 times [2022-01-17 23:31:54,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:54,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139393517] [2022-01-17 23:31:54,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:54,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:54,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:55,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:55,425 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:55,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139393517] [2022-01-17 23:31:55,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139393517] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:55,425 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:55,425 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:31:55,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220945942] [2022-01-17 23:31:55,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:55,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:31:55,425 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:55,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:31:55,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:31:55,426 INFO L87 Difference]: Start difference. First operand 3538 states and 9519 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:58,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:58,084 INFO L93 Difference]: Finished difference Result 7309 states and 19018 transitions. [2022-01-17 23:31:58,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-17 23:31:58,085 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:31:58,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:58,094 INFO L225 Difference]: With dead ends: 7309 [2022-01-17 23:31:58,094 INFO L226 Difference]: Without dead ends: 7309 [2022-01-17 23:31:58,094 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=543, Invalid=1527, Unknown=0, NotChecked=0, Total=2070 [2022-01-17 23:31:58,094 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 981 mSDsluCounter, 3094 mSDsCounter, 0 mSdLazyCounter, 1244 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 981 SdHoareTripleChecker+Valid, 3223 SdHoareTripleChecker+Invalid, 1286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:58,095 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [981 Valid, 3223 Invalid, 1286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1244 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:31:58,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7309 states. [2022-01-17 23:31:58,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7309 to 3540. [2022-01-17 23:31:58,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3540 states, 3538 states have (on average 2.6919163369135104) internal successors, (9524), 3539 states have internal predecessors, (9524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:58,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3540 states to 3540 states and 9524 transitions. [2022-01-17 23:31:58,150 INFO L78 Accepts]: Start accepts. Automaton has 3540 states and 9524 transitions. Word has length 106 [2022-01-17 23:31:58,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:58,150 INFO L470 AbstractCegarLoop]: Abstraction has 3540 states and 9524 transitions. [2022-01-17 23:31:58,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:58,150 INFO L276 IsEmpty]: Start isEmpty. Operand 3540 states and 9524 transitions. [2022-01-17 23:31:58,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:31:58,153 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:58,153 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:58,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2022-01-17 23:31:58,153 INFO L402 AbstractCegarLoop]: === Iteration 193 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-17 23:31:58,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:58,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1464027074, now seen corresponding path program 190 times [2022-01-17 23:31:58,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:58,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288830312] [2022-01-17 23:31:58,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:58,154 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:58,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:58,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:58,701 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:58,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288830312] [2022-01-17 23:31:58,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288830312] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:58,701 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:58,701 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:31:58,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502581385] [2022-01-17 23:31:58,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:58,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:31:58,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:58,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:31:58,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:31:58,702 INFO L87 Difference]: Start difference. First operand 3540 states and 9524 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:01,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:32:01,675 INFO L93 Difference]: Finished difference Result 7259 states and 18913 transitions. [2022-01-17 23:32:01,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:32:01,675 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:32:01,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:32:01,683 INFO L225 Difference]: With dead ends: 7259 [2022-01-17 23:32:01,683 INFO L226 Difference]: Without dead ends: 7259 [2022-01-17 23:32:01,683 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=577, Invalid=1585, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:32:01,684 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 988 mSDsluCounter, 3110 mSDsCounter, 0 mSdLazyCounter, 1338 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 988 SdHoareTripleChecker+Valid, 3224 SdHoareTripleChecker+Invalid, 1394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:32:01,684 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [988 Valid, 3224 Invalid, 1394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1338 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:32:01,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7259 states. [2022-01-17 23:32:01,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7259 to 3524. [2022-01-17 23:32:01,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3524 states, 3522 states have (on average 2.6908006814310053) internal successors, (9477), 3523 states have internal predecessors, (9477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:01,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3524 states to 3524 states and 9477 transitions. [2022-01-17 23:32:01,732 INFO L78 Accepts]: Start accepts. Automaton has 3524 states and 9477 transitions. Word has length 106 [2022-01-17 23:32:01,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:32:01,732 INFO L470 AbstractCegarLoop]: Abstraction has 3524 states and 9477 transitions. [2022-01-17 23:32:01,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:01,732 INFO L276 IsEmpty]: Start isEmpty. Operand 3524 states and 9477 transitions. [2022-01-17 23:32:01,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:32:01,736 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:32:01,736 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:32:01,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2022-01-17 23:32:01,736 INFO L402 AbstractCegarLoop]: === Iteration 194 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-17 23:32:01,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:32:01,736 INFO L85 PathProgramCache]: Analyzing trace with hash -2100860140, now seen corresponding path program 191 times [2022-01-17 23:32:01,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:32:01,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000839326] [2022-01-17 23:32:01,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:32:01,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:32:01,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:32:02,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:32:02,242 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:32:02,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000839326] [2022-01-17 23:32:02,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000839326] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:32:02,243 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:32:02,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:32:02,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540077474] [2022-01-17 23:32:02,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:32:02,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:32:02,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:32:02,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:32:02,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:32:02,244 INFO L87 Difference]: Start difference. First operand 3524 states and 9477 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:04,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:32:04,740 INFO L93 Difference]: Finished difference Result 7376 states and 19178 transitions. [2022-01-17 23:32:04,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-17 23:32:04,740 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:32:04,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:32:04,748 INFO L225 Difference]: With dead ends: 7376 [2022-01-17 23:32:04,748 INFO L226 Difference]: Without dead ends: 7376 [2022-01-17 23:32:04,749 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=526, Invalid=1544, Unknown=0, NotChecked=0, Total=2070 [2022-01-17 23:32:04,749 INFO L933 BasicCegarLoop]: 295 mSDtfsCounter, 950 mSDsluCounter, 3316 mSDsCounter, 0 mSdLazyCounter, 1399 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 950 SdHoareTripleChecker+Valid, 3426 SdHoareTripleChecker+Invalid, 1451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:32:04,749 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [950 Valid, 3426 Invalid, 1451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1399 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:32:04,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7376 states. [2022-01-17 23:32:04,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7376 to 3528. [2022-01-17 23:32:04,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3528 states, 3526 states have (on average 2.6905842314237094) internal successors, (9487), 3527 states have internal predecessors, (9487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:04,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3528 states to 3528 states and 9487 transitions. [2022-01-17 23:32:04,803 INFO L78 Accepts]: Start accepts. Automaton has 3528 states and 9487 transitions. Word has length 106 [2022-01-17 23:32:04,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:32:04,803 INFO L470 AbstractCegarLoop]: Abstraction has 3528 states and 9487 transitions. [2022-01-17 23:32:04,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:04,804 INFO L276 IsEmpty]: Start isEmpty. Operand 3528 states and 9487 transitions. [2022-01-17 23:32:04,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:32:04,807 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:32:04,807 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:32:04,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2022-01-17 23:32:04,807 INFO L402 AbstractCegarLoop]: === Iteration 195 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-17 23:32:04,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:32:04,807 INFO L85 PathProgramCache]: Analyzing trace with hash -368384614, now seen corresponding path program 192 times [2022-01-17 23:32:04,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:32:04,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828754403] [2022-01-17 23:32:04,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:32:04,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:32:04,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:32:05,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:32:05,312 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:32:05,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828754403] [2022-01-17 23:32:05,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828754403] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:32:05,312 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:32:05,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:32:05,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766078387] [2022-01-17 23:32:05,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:32:05,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:32:05,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:32:05,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:32:05,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:32:05,313 INFO L87 Difference]: Start difference. First operand 3528 states and 9487 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:07,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:32:07,832 INFO L93 Difference]: Finished difference Result 7401 states and 19207 transitions. [2022-01-17 23:32:07,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:32:07,833 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:32:07,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:32:07,841 INFO L225 Difference]: With dead ends: 7401 [2022-01-17 23:32:07,841 INFO L226 Difference]: Without dead ends: 7401 [2022-01-17 23:32:07,841 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=561, Invalid=1601, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:32:07,842 INFO L933 BasicCegarLoop]: 292 mSDtfsCounter, 963 mSDsluCounter, 3316 mSDsCounter, 0 mSdLazyCounter, 1497 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 963 SdHoareTripleChecker+Valid, 3412 SdHoareTripleChecker+Invalid, 1553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:32:07,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [963 Valid, 3412 Invalid, 1553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1497 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:32:07,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7401 states. [2022-01-17 23:32:07,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7401 to 3530. [2022-01-17 23:32:07,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3530 states, 3528 states have (on average 2.6904761904761907) internal successors, (9492), 3529 states have internal predecessors, (9492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:07,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3530 states to 3530 states and 9492 transitions. [2022-01-17 23:32:07,899 INFO L78 Accepts]: Start accepts. Automaton has 3530 states and 9492 transitions. Word has length 106 [2022-01-17 23:32:07,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:32:07,899 INFO L470 AbstractCegarLoop]: Abstraction has 3530 states and 9492 transitions. [2022-01-17 23:32:07,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:07,899 INFO L276 IsEmpty]: Start isEmpty. Operand 3530 states and 9492 transitions. [2022-01-17 23:32:07,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:32:07,903 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:32:07,903 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:32:07,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2022-01-17 23:32:07,903 INFO L402 AbstractCegarLoop]: === Iteration 196 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-17 23:32:07,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:32:07,903 INFO L85 PathProgramCache]: Analyzing trace with hash 178121996, now seen corresponding path program 193 times [2022-01-17 23:32:07,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:32:07,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307678462] [2022-01-17 23:32:07,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:32:07,904 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:32:07,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:32:08,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:32:08,402 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:32:08,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307678462] [2022-01-17 23:32:08,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307678462] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:32:08,402 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:32:08,402 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:32:08,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714952304] [2022-01-17 23:32:08,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:32:08,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:32:08,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:32:08,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:32:08,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:32:08,403 INFO L87 Difference]: Start difference. First operand 3530 states and 9492 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:10,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:32:10,957 INFO L93 Difference]: Finished difference Result 7425 states and 19267 transitions. [2022-01-17 23:32:10,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:32:10,957 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:32:10,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:32:10,965 INFO L225 Difference]: With dead ends: 7425 [2022-01-17 23:32:10,966 INFO L226 Difference]: Without dead ends: 7425 [2022-01-17 23:32:10,966 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=562, Invalid=1600, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:32:10,966 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 945 mSDsluCounter, 3491 mSDsCounter, 0 mSdLazyCounter, 1577 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 945 SdHoareTripleChecker+Valid, 3575 SdHoareTripleChecker+Invalid, 1628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:32:10,966 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [945 Valid, 3575 Invalid, 1628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1577 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:32:10,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7425 states. [2022-01-17 23:32:11,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7425 to 3496. [2022-01-17 23:32:11,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3496 states, 3494 states have (on average 2.6883228391528333) internal successors, (9393), 3495 states have internal predecessors, (9393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:11,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3496 states to 3496 states and 9393 transitions. [2022-01-17 23:32:11,017 INFO L78 Accepts]: Start accepts. Automaton has 3496 states and 9393 transitions. Word has length 106 [2022-01-17 23:32:11,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:32:11,017 INFO L470 AbstractCegarLoop]: Abstraction has 3496 states and 9393 transitions. [2022-01-17 23:32:11,018 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:11,018 INFO L276 IsEmpty]: Start isEmpty. Operand 3496 states and 9393 transitions. [2022-01-17 23:32:11,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:32:11,021 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:32:11,021 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:32:11,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2022-01-17 23:32:11,021 INFO L402 AbstractCegarLoop]: === Iteration 197 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-17 23:32:11,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:32:11,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1256989262, now seen corresponding path program 194 times [2022-01-17 23:32:11,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:32:11,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901884708] [2022-01-17 23:32:11,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:32:11,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:32:11,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:32:11,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:32:11,533 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:32:11,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901884708] [2022-01-17 23:32:11,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901884708] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:32:11,533 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:32:11,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:32:11,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285585821] [2022-01-17 23:32:11,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:32:11,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:32:11,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:32:11,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:32:11,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:32:11,534 INFO L87 Difference]: Start difference. First operand 3496 states and 9393 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:13,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:32:13,840 INFO L93 Difference]: Finished difference Result 6390 states and 16546 transitions. [2022-01-17 23:32:13,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-17 23:32:13,841 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:32:13,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:32:13,849 INFO L225 Difference]: With dead ends: 6390 [2022-01-17 23:32:13,849 INFO L226 Difference]: Without dead ends: 6390 [2022-01-17 23:32:13,850 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=511, Invalid=1559, Unknown=0, NotChecked=0, Total=2070 [2022-01-17 23:32:13,850 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 1015 mSDsluCounter, 2856 mSDsCounter, 0 mSdLazyCounter, 1258 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1015 SdHoareTripleChecker+Valid, 2951 SdHoareTripleChecker+Invalid, 1311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:32:13,850 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1015 Valid, 2951 Invalid, 1311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1258 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:32:13,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6390 states. [2022-01-17 23:32:13,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6390 to 3498. [2022-01-17 23:32:13,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3498 states, 3496 states have (on average 2.6882151029748282) internal successors, (9398), 3497 states have internal predecessors, (9398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:13,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3498 states to 3498 states and 9398 transitions. [2022-01-17 23:32:13,910 INFO L78 Accepts]: Start accepts. Automaton has 3498 states and 9398 transitions. Word has length 106 [2022-01-17 23:32:13,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:32:13,910 INFO L470 AbstractCegarLoop]: Abstraction has 3498 states and 9398 transitions. [2022-01-17 23:32:13,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:13,910 INFO L276 IsEmpty]: Start isEmpty. Operand 3498 states and 9398 transitions. [2022-01-17 23:32:13,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:32:13,914 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:32:13,914 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:32:13,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2022-01-17 23:32:13,914 INFO L402 AbstractCegarLoop]: === Iteration 198 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-17 23:32:13,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:32:13,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1740335024, now seen corresponding path program 195 times [2022-01-17 23:32:13,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:32:13,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443212864] [2022-01-17 23:32:13,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:32:13,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:32:13,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:32:14,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:32:14,415 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:32:14,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443212864] [2022-01-17 23:32:14,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443212864] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:32:14,416 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:32:14,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:32:14,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371880874] [2022-01-17 23:32:14,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:32:14,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:32:14,416 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:32:14,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:32:14,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:32:14,417 INFO L87 Difference]: Start difference. First operand 3498 states and 9398 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:16,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:32:16,764 INFO L93 Difference]: Finished difference Result 6484 states and 16726 transitions. [2022-01-17 23:32:16,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-17 23:32:16,765 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:32:16,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:32:16,773 INFO L225 Difference]: With dead ends: 6484 [2022-01-17 23:32:16,773 INFO L226 Difference]: Without dead ends: 6484 [2022-01-17 23:32:16,773 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=511, Invalid=1559, Unknown=0, NotChecked=0, Total=2070 [2022-01-17 23:32:16,774 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 886 mSDsluCounter, 2911 mSDsCounter, 0 mSdLazyCounter, 1303 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 886 SdHoareTripleChecker+Valid, 2992 SdHoareTripleChecker+Invalid, 1353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:32:16,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [886 Valid, 2992 Invalid, 1353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1303 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:32:16,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6484 states. [2022-01-17 23:32:16,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6484 to 3502. [2022-01-17 23:32:16,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3502 states, 3500 states have (on average 2.688) internal successors, (9408), 3501 states have internal predecessors, (9408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:16,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3502 states to 3502 states and 9408 transitions. [2022-01-17 23:32:16,830 INFO L78 Accepts]: Start accepts. Automaton has 3502 states and 9408 transitions. Word has length 106 [2022-01-17 23:32:16,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:32:16,830 INFO L470 AbstractCegarLoop]: Abstraction has 3502 states and 9408 transitions. [2022-01-17 23:32:16,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:16,830 INFO L276 IsEmpty]: Start isEmpty. Operand 3502 states and 9408 transitions. [2022-01-17 23:32:16,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:32:16,833 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:32:16,833 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:32:16,833 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2022-01-17 23:32:16,833 INFO L402 AbstractCegarLoop]: === Iteration 199 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-17 23:32:16,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:32:16,834 INFO L85 PathProgramCache]: Analyzing trace with hash -293458790, now seen corresponding path program 196 times [2022-01-17 23:32:16,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:32:16,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63196924] [2022-01-17 23:32:16,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:32:16,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:32:16,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:32:17,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:32:17,340 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:32:17,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63196924] [2022-01-17 23:32:17,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63196924] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:32:17,340 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:32:17,340 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:32:17,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224005718] [2022-01-17 23:32:17,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:32:17,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:32:17,340 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:32:17,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:32:17,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:32:17,341 INFO L87 Difference]: Start difference. First operand 3502 states and 9408 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:19,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:32:19,599 INFO L93 Difference]: Finished difference Result 6403 states and 16547 transitions. [2022-01-17 23:32:19,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:32:19,599 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:32:19,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:32:19,607 INFO L225 Difference]: With dead ends: 6403 [2022-01-17 23:32:19,607 INFO L226 Difference]: Without dead ends: 6403 [2022-01-17 23:32:19,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=546, Invalid=1616, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:32:19,608 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 977 mSDsluCounter, 2586 mSDsCounter, 0 mSdLazyCounter, 1126 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 977 SdHoareTripleChecker+Valid, 2678 SdHoareTripleChecker+Invalid, 1190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:32:19,608 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [977 Valid, 2678 Invalid, 1190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1126 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:32:19,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6403 states. [2022-01-17 23:32:19,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6403 to 3504. [2022-01-17 23:32:19,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3504 states, 3502 states have (on average 2.687892632781268) internal successors, (9413), 3503 states have internal predecessors, (9413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:19,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3504 states to 3504 states and 9413 transitions. [2022-01-17 23:32:19,663 INFO L78 Accepts]: Start accepts. Automaton has 3504 states and 9413 transitions. Word has length 106 [2022-01-17 23:32:19,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:32:19,663 INFO L470 AbstractCegarLoop]: Abstraction has 3504 states and 9413 transitions. [2022-01-17 23:32:19,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:19,663 INFO L276 IsEmpty]: Start isEmpty. Operand 3504 states and 9413 transitions. [2022-01-17 23:32:19,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:32:19,666 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:32:19,666 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:32:19,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2022-01-17 23:32:19,666 INFO L402 AbstractCegarLoop]: === Iteration 200 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-17 23:32:19,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:32:19,667 INFO L85 PathProgramCache]: Analyzing trace with hash 253047820, now seen corresponding path program 197 times [2022-01-17 23:32:19,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:32:19,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023039705] [2022-01-17 23:32:19,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:32:19,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:32:19,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:32:20,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:32:20,178 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:32:20,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023039705] [2022-01-17 23:32:20,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023039705] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:32:20,178 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:32:20,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:32:20,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942439915] [2022-01-17 23:32:20,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:32:20,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:32:20,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:32:20,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:32:20,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:32:20,179 INFO L87 Difference]: Start difference. First operand 3504 states and 9413 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:22,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:32:22,446 INFO L93 Difference]: Finished difference Result 6436 states and 16616 transitions. [2022-01-17 23:32:22,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:32:22,447 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:32:22,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:32:22,455 INFO L225 Difference]: With dead ends: 6436 [2022-01-17 23:32:22,455 INFO L226 Difference]: Without dead ends: 6436 [2022-01-17 23:32:22,455 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=547, Invalid=1615, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:32:22,455 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 987 mSDsluCounter, 2626 mSDsCounter, 0 mSdLazyCounter, 1165 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 987 SdHoareTripleChecker+Valid, 2711 SdHoareTripleChecker+Invalid, 1220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:32:22,455 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [987 Valid, 2711 Invalid, 1220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1165 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:32:22,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6436 states. [2022-01-17 23:32:22,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6436 to 3498. [2022-01-17 23:32:22,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3498 states, 3496 states have (on average 2.6882151029748282) internal successors, (9398), 3497 states have internal predecessors, (9398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:22,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3498 states to 3498 states and 9398 transitions. [2022-01-17 23:32:22,508 INFO L78 Accepts]: Start accepts. Automaton has 3498 states and 9398 transitions. Word has length 106 [2022-01-17 23:32:22,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:32:22,509 INFO L470 AbstractCegarLoop]: Abstraction has 3498 states and 9398 transitions. [2022-01-17 23:32:22,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:22,509 INFO L276 IsEmpty]: Start isEmpty. Operand 3498 states and 9398 transitions. [2022-01-17 23:32:22,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:32:22,512 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:32:22,512 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:32:22,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2022-01-17 23:32:22,512 INFO L402 AbstractCegarLoop]: === Iteration 201 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-17 23:32:22,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:32:22,513 INFO L85 PathProgramCache]: Analyzing trace with hash -534998276, now seen corresponding path program 198 times [2022-01-17 23:32:22,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:32:22,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150037852] [2022-01-17 23:32:22,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:32:22,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:32:22,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:32:23,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:32:23,151 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:32:23,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150037852] [2022-01-17 23:32:23,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150037852] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:32:23,152 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:32:23,152 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-17 23:32:23,152 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362334546] [2022-01-17 23:32:23,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:32:23,152 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-17 23:32:23,152 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:32:23,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-17 23:32:23,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=565, Unknown=0, NotChecked=0, Total=650 [2022-01-17 23:32:23,153 INFO L87 Difference]: Start difference. First operand 3498 states and 9398 transitions. Second operand has 26 states, 26 states have (on average 4.076923076923077) internal successors, (106), 26 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:27,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:32:27,237 INFO L93 Difference]: Finished difference Result 9745 states and 25424 transitions. [2022-01-17 23:32:27,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:32:27,238 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.076923076923077) internal successors, (106), 26 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:32:27,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:32:27,248 INFO L225 Difference]: With dead ends: 9745 [2022-01-17 23:32:27,248 INFO L226 Difference]: Without dead ends: 9745 [2022-01-17 23:32:27,248 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=797, Invalid=1855, Unknown=0, NotChecked=0, Total=2652 [2022-01-17 23:32:27,248 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 1231 mSDsluCounter, 3094 mSDsCounter, 0 mSdLazyCounter, 1320 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1231 SdHoareTripleChecker+Valid, 3269 SdHoareTripleChecker+Invalid, 1405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:32:27,249 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1231 Valid, 3269 Invalid, 1405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1320 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:32:27,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9745 states. [2022-01-17 23:32:27,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9745 to 3610. [2022-01-17 23:32:27,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3610 states, 3608 states have (on average 2.6978935698447892) internal successors, (9734), 3609 states have internal predecessors, (9734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:27,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3610 states to 3610 states and 9734 transitions. [2022-01-17 23:32:27,309 INFO L78 Accepts]: Start accepts. Automaton has 3610 states and 9734 transitions. Word has length 106 [2022-01-17 23:32:27,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:32:27,309 INFO L470 AbstractCegarLoop]: Abstraction has 3610 states and 9734 transitions. [2022-01-17 23:32:27,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.076923076923077) internal successors, (106), 26 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:27,309 INFO L276 IsEmpty]: Start isEmpty. Operand 3610 states and 9734 transitions. [2022-01-17 23:32:27,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:32:27,312 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:32:27,312 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:32:27,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2022-01-17 23:32:27,313 INFO L402 AbstractCegarLoop]: === Iteration 202 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-17 23:32:27,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:32:27,313 INFO L85 PathProgramCache]: Analyzing trace with hash -919165654, now seen corresponding path program 199 times [2022-01-17 23:32:27,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:32:27,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609965832] [2022-01-17 23:32:27,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:32:27,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:32:27,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:32:27,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:32:27,881 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:32:27,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609965832] [2022-01-17 23:32:27,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609965832] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:32:27,881 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:32:27,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:32:27,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552170026] [2022-01-17 23:32:27,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:32:27,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:32:27,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:32:27,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:32:27,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=525, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:32:27,882 INFO L87 Difference]: Start difference. First operand 3610 states and 9734 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:32,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:32:32,381 INFO L93 Difference]: Finished difference Result 10194 states and 26563 transitions. [2022-01-17 23:32:32,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-17 23:32:32,382 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:32:32,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:32:32,392 INFO L225 Difference]: With dead ends: 10194 [2022-01-17 23:32:32,392 INFO L226 Difference]: Without dead ends: 10194 [2022-01-17 23:32:32,392 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=841, Invalid=1915, Unknown=0, NotChecked=0, Total=2756 [2022-01-17 23:32:32,393 INFO L933 BasicCegarLoop]: 343 mSDtfsCounter, 1346 mSDsluCounter, 3196 mSDsCounter, 0 mSdLazyCounter, 1347 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1346 SdHoareTripleChecker+Valid, 3379 SdHoareTripleChecker+Invalid, 1433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:32:32,393 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1346 Valid, 3379 Invalid, 1433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 1347 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:32:32,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10194 states. [2022-01-17 23:32:32,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10194 to 3638. [2022-01-17 23:32:32,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3638 states, 3636 states have (on average 2.7002200220022003) internal successors, (9818), 3637 states have internal predecessors, (9818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:32,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3638 states to 3638 states and 9818 transitions. [2022-01-17 23:32:32,455 INFO L78 Accepts]: Start accepts. Automaton has 3638 states and 9818 transitions. Word has length 106 [2022-01-17 23:32:32,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:32:32,456 INFO L470 AbstractCegarLoop]: Abstraction has 3638 states and 9818 transitions. [2022-01-17 23:32:32,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:32,456 INFO L276 IsEmpty]: Start isEmpty. Operand 3638 states and 9818 transitions. [2022-01-17 23:32:32,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:32:32,459 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:32:32,459 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:32:32,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2022-01-17 23:32:32,460 INFO L402 AbstractCegarLoop]: === Iteration 203 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-17 23:32:32,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:32:32,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1612349922, now seen corresponding path program 200 times [2022-01-17 23:32:32,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:32:32,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961374953] [2022-01-17 23:32:32,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:32:32,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:32:32,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:32:33,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:32:33,010 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:32:33,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961374953] [2022-01-17 23:32:33,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961374953] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:32:33,010 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:32:33,010 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:32:33,010 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532543699] [2022-01-17 23:32:33,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:32:33,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:32:33,011 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:32:33,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:32:33,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:32:33,011 INFO L87 Difference]: Start difference. First operand 3638 states and 9818 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:37,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:32:37,243 INFO L93 Difference]: Finished difference Result 9790 states and 25490 transitions. [2022-01-17 23:32:37,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-17 23:32:37,244 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:32:37,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:32:37,256 INFO L225 Difference]: With dead ends: 9790 [2022-01-17 23:32:37,257 INFO L226 Difference]: Without dead ends: 9790 [2022-01-17 23:32:37,257 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=834, Invalid=2028, Unknown=0, NotChecked=0, Total=2862 [2022-01-17 23:32:37,257 INFO L933 BasicCegarLoop]: 343 mSDtfsCounter, 1259 mSDsluCounter, 3590 mSDsCounter, 0 mSdLazyCounter, 1530 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1259 SdHoareTripleChecker+Valid, 3764 SdHoareTripleChecker+Invalid, 1628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:32:37,257 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1259 Valid, 3764 Invalid, 1628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 1530 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:32:37,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9790 states. [2022-01-17 23:32:37,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9790 to 3624. [2022-01-17 23:32:37,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3624 states, 3622 states have (on average 2.69906129210381) internal successors, (9776), 3623 states have internal predecessors, (9776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:37,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3624 states to 3624 states and 9776 transitions. [2022-01-17 23:32:37,333 INFO L78 Accepts]: Start accepts. Automaton has 3624 states and 9776 transitions. Word has length 106 [2022-01-17 23:32:37,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:32:37,333 INFO L470 AbstractCegarLoop]: Abstraction has 3624 states and 9776 transitions. [2022-01-17 23:32:37,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:37,334 INFO L276 IsEmpty]: Start isEmpty. Operand 3624 states and 9776 transitions. [2022-01-17 23:32:37,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:32:37,337 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:32:37,337 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:32:37,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2022-01-17 23:32:37,337 INFO L402 AbstractCegarLoop]: === Iteration 204 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-17 23:32:37,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:32:37,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1469394938, now seen corresponding path program 201 times [2022-01-17 23:32:37,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:32:37,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379214643] [2022-01-17 23:32:37,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:32:37,338 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:32:37,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:32:37,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:32:37,873 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:32:37,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379214643] [2022-01-17 23:32:37,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379214643] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:32:37,873 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:32:37,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:32:37,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599922000] [2022-01-17 23:32:37,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:32:37,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:32:37,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:32:37,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:32:37,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:32:37,874 INFO L87 Difference]: Start difference. First operand 3624 states and 9776 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:41,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:32:41,931 INFO L93 Difference]: Finished difference Result 10207 states and 26397 transitions. [2022-01-17 23:32:41,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-17 23:32:41,932 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:32:41,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:32:41,943 INFO L225 Difference]: With dead ends: 10207 [2022-01-17 23:32:41,943 INFO L226 Difference]: Without dead ends: 10207 [2022-01-17 23:32:41,943 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 317 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=818, Invalid=2044, Unknown=0, NotChecked=0, Total=2862 [2022-01-17 23:32:41,943 INFO L933 BasicCegarLoop]: 345 mSDtfsCounter, 1242 mSDsluCounter, 3513 mSDsCounter, 0 mSdLazyCounter, 1487 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1242 SdHoareTripleChecker+Valid, 3672 SdHoareTripleChecker+Invalid, 1565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 1487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:32:41,944 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1242 Valid, 3672 Invalid, 1565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 1487 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:32:41,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10207 states. [2022-01-17 23:32:42,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10207 to 3610. [2022-01-17 23:32:42,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3610 states, 3608 states have (on average 2.6978935698447892) internal successors, (9734), 3609 states have internal predecessors, (9734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:42,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3610 states to 3610 states and 9734 transitions. [2022-01-17 23:32:42,017 INFO L78 Accepts]: Start accepts. Automaton has 3610 states and 9734 transitions. Word has length 106 [2022-01-17 23:32:42,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:32:42,017 INFO L470 AbstractCegarLoop]: Abstraction has 3610 states and 9734 transitions. [2022-01-17 23:32:42,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:42,017 INFO L276 IsEmpty]: Start isEmpty. Operand 3610 states and 9734 transitions. [2022-01-17 23:32:42,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:32:42,021 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:32:42,021 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:32:42,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2022-01-17 23:32:42,021 INFO L402 AbstractCegarLoop]: === Iteration 205 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-17 23:32:42,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:32:42,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1069403438, now seen corresponding path program 202 times [2022-01-17 23:32:42,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:32:42,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028354806] [2022-01-17 23:32:42,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:32:42,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:32:42,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:32:42,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:32:42,542 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:32:42,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028354806] [2022-01-17 23:32:42,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028354806] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:32:42,543 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:32:42,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:32:42,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298337484] [2022-01-17 23:32:42,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:32:42,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:32:42,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:32:42,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:32:42,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:32:42,544 INFO L87 Difference]: Start difference. First operand 3610 states and 9734 transitions. Second operand has 25 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 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... [2022-01-17 23:32:44,966 WARN L244 SmtUtils]: Removed 25 from assertion stack [2022-01-17 23:32:44,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-17 23:32:44,966 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=510, Invalid=1470, Unknown=0, NotChecked=0, Total=1980 [2022-01-17 23:32:44,967 INFO L933 BasicCegarLoop]: 296 mSDtfsCounter, 847 mSDsluCounter, 2958 mSDsCounter, 0 mSdLazyCounter, 1249 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 847 SdHoareTripleChecker+Valid, 3080 SdHoareTripleChecker+Invalid, 1292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:32:44,967 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [847 Valid, 3080 Invalid, 1292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1249 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:32:44,967 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2022-01-17 23:32:44,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2022-01-17 23:32:44,968 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was constructing difference of abstraction (3610states) and FLOYD_HOARE automaton (currently 25 states, 25 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 76 for 23ms.. [2022-01-17 23:32:44,969 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2022-01-17 23:32:44,969 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (3 of 6 remaining) [2022-01-17 23:32:44,969 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2022-01-17 23:32:44,969 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 6 remaining) [2022-01-17 23:32:44,969 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 6 remaining) [2022-01-17 23:32:44,971 INFO L732 BasicCegarLoop]: Path program histogram: [202, 1, 1, 1] [2022-01-17 23:32:44,973 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-17 23:32:44,973 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-17 23:32:44,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.01 11:32:44 BasicIcfg [2022-01-17 23:32:44,974 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-17 23:32:44,974 INFO L158 Benchmark]: Toolchain (without parser) took 714211.37ms. Allocated memory was 377.5MB in the beginning and 778.0MB in the end (delta: 400.6MB). Free memory was 319.3MB in the beginning and 331.6MB in the end (delta: -12.3MB). Peak memory consumption was 389.6MB. Max. memory is 16.0GB. [2022-01-17 23:32:44,974 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 377.5MB. Free memory is still 339.7MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-17 23:32:44,974 INFO L158 Benchmark]: CACSL2BoogieTranslator took 652.33ms. Allocated memory was 377.5MB in the beginning and 463.5MB in the end (delta: 86.0MB). Free memory was 319.1MB in the beginning and 391.7MB in the end (delta: -72.6MB). Peak memory consumption was 15.8MB. Max. memory is 16.0GB. [2022-01-17 23:32:44,974 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.58ms. Allocated memory is still 463.5MB. Free memory was 391.7MB in the beginning and 389.0MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-17 23:32:44,974 INFO L158 Benchmark]: Boogie Preprocessor took 45.03ms. Allocated memory is still 463.5MB. Free memory was 389.0MB in the beginning and 386.2MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2022-01-17 23:32:44,974 INFO L158 Benchmark]: RCFGBuilder took 394.08ms. Allocated memory is still 463.5MB. Free memory was 386.2MB in the beginning and 365.2MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2022-01-17 23:32:44,974 INFO L158 Benchmark]: TraceAbstraction took 713050.52ms. Allocated memory was 463.5MB in the beginning and 778.0MB in the end (delta: 314.6MB). Free memory was 365.2MB in the beginning and 331.6MB in the end (delta: 33.6MB). Peak memory consumption was 349.0MB. Max. memory is 16.0GB. [2022-01-17 23:32:44,975 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 377.5MB. Free memory is still 339.7MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 652.33ms. Allocated memory was 377.5MB in the beginning and 463.5MB in the end (delta: 86.0MB). Free memory was 319.1MB in the beginning and 391.7MB in the end (delta: -72.6MB). Peak memory consumption was 15.8MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 64.58ms. Allocated memory is still 463.5MB. Free memory was 391.7MB in the beginning and 389.0MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 45.03ms. Allocated memory is still 463.5MB. Free memory was 389.0MB in the beginning and 386.2MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * RCFGBuilder took 394.08ms. Allocated memory is still 463.5MB. Free memory was 386.2MB in the beginning and 365.2MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * TraceAbstraction took 713050.52ms. Allocated memory was 463.5MB in the beginning and 778.0MB in the end (delta: 314.6MB). Free memory was 365.2MB in the beginning and 331.6MB in the end (delta: 33.6MB). Peak memory consumption was 349.0MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 1675]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (3610states) and FLOYD_HOARE automaton (currently 25 states, 25 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 76 for 23ms.. - TimeoutResultAtElement [Line: 1675]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (3610states) and FLOYD_HOARE automaton (currently 25 states, 25 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 76 for 23ms.. - TimeoutResultAtElement [Line: 1675]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (3610states) and FLOYD_HOARE automaton (currently 25 states, 25 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 76 for 23ms.. - TimeoutResultAtElement [Line: 1675]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (3610states) and FLOYD_HOARE automaton (currently 25 states, 25 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 76 for 23ms.. - 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 (3610states) and FLOYD_HOARE automaton (currently 25 states, 25 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 76 for 23ms.. - 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 (3610states) and FLOYD_HOARE automaton (currently 25 states, 25 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 76 for 23ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 170 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 712.9s, OverallIterations: 205, TraceHistogramMax: 1, PathProgramHistogramMax: 202, EmptinessCheckTime: 0.8s, AutomataDifference: 592.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 207243 SdHoareTripleChecker+Valid, 127.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 207243 mSDsluCounter, 667509 SdHoareTripleChecker+Invalid, 107.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 638403 mSDsCounter, 12757 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 276757 IncrementalHoareTripleChecker+Invalid, 289514 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12757 mSolverCounterUnsat, 61190 mSDtfsCounter, 276757 mSolverCounterSat, 1.7s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9958 GetRequests, 617 SyntacticMatches, 0 SemanticMatches, 9340 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50233 ImplicationChecksByTransitivity, 502.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6161occurred in iteration=0, InterpolantAutomatonStates: 5736, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 12.1s AutomataMinimizationTime, 204 MinimizatonAttempts, 781132 StatesRemovedByMinimization, 203 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 101.7s InterpolantComputationTime, 21618 NumberOfCodeBlocks, 21618 NumberOfCodeBlocksAsserted, 205 NumberOfCheckSat, 21413 ConstructedInterpolants, 0 QuantifiedInterpolants, 328072 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 205 InterpolantComputations, 205 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