/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product09.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 16:42:01,408 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 16:42:01,412 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 16:42:01,438 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 16:42:01,438 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 16:42:01,440 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 16:42:01,441 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 16:42:01,443 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 16:42:01,445 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 16:42:01,446 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 16:42:01,447 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 16:42:01,449 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 16:42:01,449 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 16:42:01,450 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 16:42:01,452 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 16:42:01,453 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 16:42:01,454 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 16:42:01,455 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 16:42:01,457 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 16:42:01,459 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 16:42:01,461 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 16:42:01,462 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 16:42:01,463 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 16:42:01,465 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 16:42:01,467 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 16:42:01,467 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 16:42:01,470 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 16:42:01,472 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 16:42:01,472 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 16:42:01,476 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 16:42:01,476 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 16:42:01,478 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 16:42:01,479 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 16:42:01,480 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 16:42:01,481 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 16:42:01,481 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 16:42:01,483 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 16:42:01,483 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 16:42:01,483 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 16:42:01,485 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 16:42:01,493 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 16:42:01,494 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 16:42:01,545 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 16:42:01,546 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 16:42:01,547 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 16:42:01,547 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 16:42:01,547 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 16:42:01,548 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 16:42:01,548 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 16:42:01,549 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 16:42:01,549 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 16:42:01,549 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 16:42:01,550 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 16:42:01,550 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 16:42:01,551 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 16:42:01,551 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 16:42:01,551 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 16:42:01,551 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 16:42:01,552 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 16:42:01,552 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 16:42:01,552 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 16:42:01,552 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 16:42:01,552 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 16:42:01,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:42:01,553 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 16:42:01,553 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 16:42:01,553 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 16:42:01,553 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 16:42:01,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 16:42:01,554 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 16:42:01,554 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 16:42:01,554 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true; [2020-09-24 16:42:02,770 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 16:42:02,788 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 16:42:02,792 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 16:42:02,794 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 16:42:02,795 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 16:42:02,796 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product09.cil.c [2020-09-24 16:42:02,892 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b63d96dbc/41e97de4af8e4af2830b89fecaa03a2b/FLAG87436d2e4 [2020-09-24 16:42:03,494 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 16:42:03,495 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product09.cil.c [2020-09-24 16:42:03,525 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b63d96dbc/41e97de4af8e4af2830b89fecaa03a2b/FLAG87436d2e4 [2020-09-24 16:42:03,760 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b63d96dbc/41e97de4af8e4af2830b89fecaa03a2b [2020-09-24 16:42:03,775 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 16:42:03,783 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 16:42:03,786 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 16:42:03,786 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 16:42:03,791 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 16:42:03,792 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:42:03" (1/1) ... [2020-09-24 16:42:03,797 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d265cc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:42:03, skipping insertion in model container [2020-09-24 16:42:03,798 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:42:03" (1/1) ... [2020-09-24 16:42:03,808 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 16:42:03,860 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 16:42:04,228 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:42:04,244 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 16:42:04,467 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:42:04,507 INFO L208 MainTranslator]: Completed translation [2020-09-24 16:42:04,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:42:04 WrapperNode [2020-09-24 16:42:04,508 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 16:42:04,511 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 16:42:04,512 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 16:42:04,512 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 16:42:04,527 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:42:04" (1/1) ... [2020-09-24 16:42:04,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:42:04" (1/1) ... [2020-09-24 16:42:04,549 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:42:04" (1/1) ... [2020-09-24 16:42:04,550 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:42:04" (1/1) ... [2020-09-24 16:42:04,582 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:42:04" (1/1) ... [2020-09-24 16:42:04,594 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:42:04" (1/1) ... [2020-09-24 16:42:04,600 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:42:04" (1/1) ... [2020-09-24 16:42:04,610 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 16:42:04,611 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 16:42:04,611 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 16:42:04,611 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 16:42:04,612 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:42:04" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:42:04,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 16:42:04,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 16:42:04,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 16:42:04,693 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 16:42:04,693 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 16:42:04,694 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 16:42:04,694 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 16:42:04,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 16:42:04,695 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 16:42:04,696 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 16:42:04,696 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 16:42:04,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 16:42:04,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 16:42:04,697 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 16:42:04,697 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 16:42:04,698 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 16:42:04,698 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 16:42:04,698 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 16:42:04,698 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 16:42:04,699 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 16:42:04,699 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 16:42:04,700 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 16:42:04,700 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 16:42:04,700 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 16:42:04,702 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 16:42:04,703 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 16:42:04,703 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 16:42:04,703 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-09-24 16:42:04,704 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 16:42:04,704 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 16:42:04,705 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 16:42:04,705 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 16:42:04,705 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 16:42:04,705 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 16:42:04,705 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-24 16:42:04,706 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 16:42:04,706 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 16:42:04,706 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 16:42:04,706 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 16:42:04,706 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 16:42:04,706 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 16:42:04,707 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 16:42:04,707 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 16:42:04,707 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 16:42:04,707 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 16:42:04,707 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 16:42:04,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 16:42:04,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 16:42:04,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 16:42:04,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 16:42:04,708 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 16:42:04,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 16:42:04,709 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 16:42:04,709 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 16:42:04,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 16:42:04,709 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 16:42:04,710 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 16:42:04,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 16:42:04,710 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 16:42:04,710 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 16:42:04,710 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 16:42:04,710 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 16:42:04,711 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 16:42:04,711 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 16:42:04,711 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 16:42:04,711 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 16:42:04,711 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 16:42:04,711 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 16:42:04,711 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 16:42:04,712 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 16:42:04,712 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 16:42:04,713 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 16:42:04,713 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 16:42:04,713 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 16:42:04,714 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 16:42:04,715 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 16:42:04,715 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 16:42:04,715 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-24 16:42:04,715 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 16:42:04,715 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-09-24 16:42:04,715 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 16:42:04,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 16:42:04,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 16:42:04,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 16:42:05,989 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 16:42:05,989 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 16:42:05,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:42:05 BoogieIcfgContainer [2020-09-24 16:42:05,997 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 16:42:05,998 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 16:42:05,999 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 16:42:06,003 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 16:42:06,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:42:03" (1/3) ... [2020-09-24 16:42:06,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1557f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:42:06, skipping insertion in model container [2020-09-24 16:42:06,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:42:04" (2/3) ... [2020-09-24 16:42:06,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1557f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:42:06, skipping insertion in model container [2020-09-24 16:42:06,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:42:05" (3/3) ... [2020-09-24 16:42:06,010 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product09.cil.c [2020-09-24 16:42:06,022 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 16:42:06,037 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 16:42:06,061 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 16:42:06,107 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 16:42:06,107 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 16:42:06,107 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 16:42:06,107 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 16:42:06,108 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 16:42:06,108 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 16:42:06,109 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 16:42:06,109 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 16:42:06,152 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states. [2020-09-24 16:42:06,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 16:42:06,176 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:42:06,178 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:42:06,178 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:42:06,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:42:06,189 INFO L82 PathProgramCache]: Analyzing trace with hash 1615178959, now seen corresponding path program 1 times [2020-09-24 16:42:06,201 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:42:06,202 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1408695747] [2020-09-24 16:42:06,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:42:06,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:06,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:06,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:07,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:08,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:08,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:19,152 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:19,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 16:42:19,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 16:42:19,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12598 [2020-09-24 16:42:19,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:19,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:42:19,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-24 16:42:19,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 16:42:19,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 16:42:19,638 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 16:42:19,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:42:19,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:19,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:19,959 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:19,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 16:42:19,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:19,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 278 [2020-09-24 16:42:19,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:19,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:42:19,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:19,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 16:42:19,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:42:20,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 16:42:20,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:20,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:20,030 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:20,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:42:20,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:20,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:42:20,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:20,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:42:20,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:20,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:42:20,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:42:20,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 16:42:20,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:20,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:20,039 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:20,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:42:20,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:20,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:42:20,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:20,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:42:20,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:20,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:42:20,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:42:20,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 16:42:20,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:20,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:20,053 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:20,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:42:20,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:20,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 16:42:20,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:20,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:42:20,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:20,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:42:20,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:42:20,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 16:42:20,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:20,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:20,065 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:20,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:42:20,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:20,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 16:42:20,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:20,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:42:20,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:20,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:42:20,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:42:20,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 16:42:20,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:20,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:20,075 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:20,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:42:20,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:20,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:42:20,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:20,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:42:20,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:42:20,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:42:20,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:42:20,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 16:42:20,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:20,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:20,086 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:20,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:42:20,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:20,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:42:20,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:20,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:42:20,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:42:20,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:42:20,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:42:20,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:42:20,135 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1408695747] [2020-09-24 16:42:20,137 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:42:20,138 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 16:42:20,139 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402792466] [2020-09-24 16:42:20,147 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 16:42:20,147 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:42:20,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 16:42:20,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 16:42:20,176 INFO L87 Difference]: Start difference. First operand 257 states. Second operand 4 states. [2020-09-24 16:42:20,810 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 16:42:21,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:42:21,662 INFO L93 Difference]: Finished difference Result 343 states and 414 transitions. [2020-09-24 16:42:21,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 16:42:21,665 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2020-09-24 16:42:21,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:42:21,684 INFO L225 Difference]: With dead ends: 343 [2020-09-24 16:42:21,684 INFO L226 Difference]: Without dead ends: 227 [2020-09-24 16:42:21,690 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 16:42:21,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2020-09-24 16:42:21,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 190. [2020-09-24 16:42:21,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2020-09-24 16:42:21,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 202 transitions. [2020-09-24 16:42:21,793 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 202 transitions. Word has length 142 [2020-09-24 16:42:21,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:42:21,797 INFO L479 AbstractCegarLoop]: Abstraction has 190 states and 202 transitions. [2020-09-24 16:42:21,797 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 16:42:21,797 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 202 transitions. [2020-09-24 16:42:21,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-09-24 16:42:21,803 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:42:21,806 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:42:21,806 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 16:42:21,806 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:42:21,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:42:21,807 INFO L82 PathProgramCache]: Analyzing trace with hash -1287643640, now seen corresponding path program 1 times [2020-09-24 16:42:21,807 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:42:21,808 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1927938901] [2020-09-24 16:42:21,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:42:21,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:21,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:22,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:22,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:23,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:32,248 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:32,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-09-24 16:42:32,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 16:42:32,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10371 [2020-09-24 16:42:32,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:32,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:42:32,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 16:42:32,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 16:42:32,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:42:32,602 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 16:42:32,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:42:32,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:32,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:32,700 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:32,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 16:42:32,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:32,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-24 16:42:32,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:32,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:42:32,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:32,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:42:32,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:42:32,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 16:42:32,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:32,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:32,735 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:32,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:42:32,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:32,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:42:32,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:32,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:42:32,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:32,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:42:32,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:42:32,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 16:42:32,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:32,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:32,741 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:32,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:42:32,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:32,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:42:32,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:32,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:42:32,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:32,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:42:32,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:42:32,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 16:42:32,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:32,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:32,748 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:32,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:42:32,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:32,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:42:32,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:32,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:42:32,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:32,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:42:32,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:42:32,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 16:42:32,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:32,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:32,754 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:32,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:42:32,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:32,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:42:32,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:32,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:42:32,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:32,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:42:32,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:42:32,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-24 16:42:32,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:32,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:32,760 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:32,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:42:32,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:32,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:42:32,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:32,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:42:32,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-24 16:42:32,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:42:32,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:42:32,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 16:42:32,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:32,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:32,766 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:32,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:42:32,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:32,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:42:32,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:32,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:42:32,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:42:32,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:42:32,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:42:32,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 16:42:32,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:32,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:32,773 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:32,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:42:32,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:32,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:42:32,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:32,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:42:32,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:42:32,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:42:32,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:42:32,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:42:32,802 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1927938901] [2020-09-24 16:42:32,802 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:42:32,802 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 16:42:32,803 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479315789] [2020-09-24 16:42:32,805 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 16:42:32,805 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:42:32,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 16:42:32,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 16:42:32,806 INFO L87 Difference]: Start difference. First operand 190 states and 202 transitions. Second operand 4 states. [2020-09-24 16:42:33,604 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:42:34,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:42:34,095 INFO L93 Difference]: Finished difference Result 260 states and 286 transitions. [2020-09-24 16:42:34,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 16:42:34,096 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 146 [2020-09-24 16:42:34,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:42:34,100 INFO L225 Difference]: With dead ends: 260 [2020-09-24 16:42:34,100 INFO L226 Difference]: Without dead ends: 210 [2020-09-24 16:42:34,101 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 16:42:34,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2020-09-24 16:42:34,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 180. [2020-09-24 16:42:34,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2020-09-24 16:42:34,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 189 transitions. [2020-09-24 16:42:34,142 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 189 transitions. Word has length 146 [2020-09-24 16:42:34,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:42:34,143 INFO L479 AbstractCegarLoop]: Abstraction has 180 states and 189 transitions. [2020-09-24 16:42:34,143 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 16:42:34,143 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 189 transitions. [2020-09-24 16:42:34,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-09-24 16:42:34,154 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:42:34,155 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:42:34,155 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 16:42:34,156 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:42:34,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:42:34,158 INFO L82 PathProgramCache]: Analyzing trace with hash -518475144, now seen corresponding path program 1 times [2020-09-24 16:42:34,159 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:42:34,159 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1471903245] [2020-09-24 16:42:34,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:42:34,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:34,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:34,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:35,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:39,428 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:39,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 16:42:39,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 16:42:39,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5228 [2020-09-24 16:42:39,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:39,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:42:39,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-24 16:42:39,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-24 16:42:39,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:42:39,795 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 16:42:39,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:42:39,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:39,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:39,915 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:39,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 16:42:39,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:39,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-24 16:42:39,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:39,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:42:39,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:39,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:42:39,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:42:39,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 16:42:39,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:39,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:39,958 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:39,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:42:39,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:39,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:42:39,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:39,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:42:39,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:39,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:42:39,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:42:39,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 16:42:39,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:39,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:39,965 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:39,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:42:39,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:39,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:42:39,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:39,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:42:39,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:39,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:42:39,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:42:39,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 16:42:39,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:39,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:39,974 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:39,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:42:39,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:39,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:42:39,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:39,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:42:39,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:39,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:42:39,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:42:39,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 16:42:39,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:39,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:39,981 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:39,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:42:39,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:39,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:42:39,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:39,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:42:39,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:39,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:42:39,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:42:39,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 16:42:39,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:39,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:39,993 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:39,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:42:39,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:39,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 16:42:39,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:39,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:42:39,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:39,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:42:39,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 16:42:39,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-24 16:42:39,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:40,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:40,003 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:40,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:42:40,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:40,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:42:40,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:40,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:42:40,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:40,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:42:40,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 16:42:40,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-24 16:42:40,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:40,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:40,022 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:40,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:42:40,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:40,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 16:42:40,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:40,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:42:40,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:40,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:42:40,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:42:40,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:42:40,104 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1471903245] [2020-09-24 16:42:40,105 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:42:40,105 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 16:42:40,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788437429] [2020-09-24 16:42:40,108 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 16:42:40,109 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:42:40,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 16:42:40,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 16:42:40,110 INFO L87 Difference]: Start difference. First operand 180 states and 189 transitions. Second operand 8 states. [2020-09-24 16:42:40,786 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 16:42:41,810 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:42:42,121 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:42:42,434 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:42:42,725 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:42:42,999 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:42:43,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:42:43,106 INFO L93 Difference]: Finished difference Result 267 states and 295 transitions. [2020-09-24 16:42:43,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 16:42:43,107 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 155 [2020-09-24 16:42:43,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:42:43,108 INFO L225 Difference]: With dead ends: 267 [2020-09-24 16:42:43,108 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 16:42:43,111 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-09-24 16:42:43,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 16:42:43,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 16:42:43,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 16:42:43,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 16:42:43,115 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 155 [2020-09-24 16:42:43,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:42:43,115 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 16:42:43,115 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 16:42:43,115 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 16:42:43,115 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 16:42:43,115 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 16:42:43,118 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 16:42:43,317 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:42:43,491 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:42:43,665 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:42:43,829 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:42:43,990 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:42:44,150 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:42:44,311 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 12 [2020-09-24 16:42:44,767 WARN L193 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-09-24 16:42:45,218 WARN L193 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-09-24 16:42:45,671 WARN L193 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-09-24 16:42:46,119 WARN L193 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-09-24 16:42:46,276 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:42:46,425 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:42:46,575 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:42:46,727 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:42:46,865 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 16:42:47,015 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:42:47,164 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:42:47,313 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:42:47,462 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:42:47,610 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:42:47,761 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 12 [2020-09-24 16:42:47,911 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:42:48,058 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:42:48,208 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:42:48,359 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 12 [2020-09-24 16:42:48,509 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:42:48,666 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 12 [2020-09-24 16:42:48,816 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:42:48,966 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:42:49,114 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:42:49,263 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:42:49,413 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:42:49,638 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 16 [2020-09-24 16:42:49,856 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 16 [2020-09-24 16:42:50,086 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 16 [2020-09-24 16:42:50,282 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 16 [2020-09-24 16:42:50,509 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 12