/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 interpolation-heuristic=FIRST --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_spec3_product02.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 15:46:12,518 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 15:46:12,522 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 15:46:12,550 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 15:46:12,550 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 15:46:12,552 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 15:46:12,553 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 15:46:12,555 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 15:46:12,557 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 15:46:12,558 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 15:46:12,559 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 15:46:12,560 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 15:46:12,561 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 15:46:12,562 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 15:46:12,563 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 15:46:12,565 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 15:46:12,566 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 15:46:12,567 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 15:46:12,569 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 15:46:12,571 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 15:46:12,573 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 15:46:12,574 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 15:46:12,576 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 15:46:12,577 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 15:46:12,579 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 15:46:12,580 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 15:46:12,580 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 15:46:12,581 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 15:46:12,582 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 15:46:12,583 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 15:46:12,583 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 15:46:12,584 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 15:46:12,585 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 15:46:12,586 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 15:46:12,588 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 15:46:12,588 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 15:46:12,589 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 15:46:12,589 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 15:46:12,590 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 15:46:12,591 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 15:46:12,592 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 15:46:12,593 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 15:46:12,650 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 15:46:12,651 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 15:46:12,652 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 15:46:12,652 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 15:46:12,655 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 15:46:12,655 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 15:46:12,655 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 15:46:12,655 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 15:46:12,656 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 15:46:12,656 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 15:46:12,656 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 15:46:12,656 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 15:46:12,656 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 15:46:12,657 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 15:46:12,659 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 15:46:12,659 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 15:46:12,659 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 15:46:12,660 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 15:46:12,661 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 15:46:12,661 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 15:46:12,661 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 15:46:12,661 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 15:46:12,662 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 15:46:12,662 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 15:46:12,662 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 15:46:12,662 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 15:46:12,662 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 15:46:12,663 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 15:46:12,663 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 15:46:12,663 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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-24 15:46:13,130 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 15:46:13,148 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 15:46:13,152 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 15:46:13,154 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 15:46:13,155 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 15:46:13,156 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product02.cil.c [2020-09-24 15:46:13,251 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/795acc1a7/d4a88fe1e2524390a8f8a6094a9035b8/FLAG192c8c8b2 [2020-09-24 15:46:13,862 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 15:46:13,863 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product02.cil.c [2020-09-24 15:46:13,878 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/795acc1a7/d4a88fe1e2524390a8f8a6094a9035b8/FLAG192c8c8b2 [2020-09-24 15:46:14,148 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/795acc1a7/d4a88fe1e2524390a8f8a6094a9035b8 [2020-09-24 15:46:14,165 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 15:46:14,174 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 15:46:14,178 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 15:46:14,178 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 15:46:14,182 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 15:46:14,184 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:46:14" (1/1) ... [2020-09-24 15:46:14,189 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5db1276a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:14, skipping insertion in model container [2020-09-24 15:46:14,189 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:46:14" (1/1) ... [2020-09-24 15:46:14,200 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 15:46:14,271 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 15:46:14,665 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:46:14,689 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 15:46:14,907 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:46:14,952 INFO L208 MainTranslator]: Completed translation [2020-09-24 15:46:14,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:14 WrapperNode [2020-09-24 15:46:14,953 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 15:46:14,954 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 15:46:14,954 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 15:46:14,954 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 15:46:14,968 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:14" (1/1) ... [2020-09-24 15:46:14,968 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:14" (1/1) ... [2020-09-24 15:46:14,989 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:14" (1/1) ... [2020-09-24 15:46:14,990 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:14" (1/1) ... [2020-09-24 15:46:15,018 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:14" (1/1) ... [2020-09-24 15:46:15,029 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:14" (1/1) ... [2020-09-24 15:46:15,034 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:14" (1/1) ... [2020-09-24 15:46:15,058 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 15:46:15,058 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 15:46:15,058 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 15:46:15,059 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 15:46:15,060 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:14" (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 15:46:15,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 15:46:15,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 15:46:15,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 15:46:15,157 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 15:46:15,157 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 15:46:15,157 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 15:46:15,158 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 15:46:15,158 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 15:46:15,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 15:46:15,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 15:46:15,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 15:46:15,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 15:46:15,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 15:46:15,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 15:46:15,160 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 15:46:15,161 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 15:46:15,161 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 15:46:15,161 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 15:46:15,161 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 15:46:15,161 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 15:46:15,162 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 15:46:15,162 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 15:46:15,162 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 15:46:15,162 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 15:46:15,162 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 15:46:15,162 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 15:46:15,163 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 15:46:15,163 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 15:46:15,163 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 15:46:15,163 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 15:46:15,163 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 15:46:15,163 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 15:46:15,164 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 15:46:15,164 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 15:46:15,164 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 15:46:15,164 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 15:46:15,164 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 15:46:15,165 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 15:46:15,165 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 15:46:15,165 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 15:46:15,165 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 15:46:15,165 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 15:46:15,165 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 15:46:15,165 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 15:46:15,166 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 15:46:15,166 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 15:46:15,166 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 15:46:15,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 15:46:15,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 15:46:15,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 15:46:15,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 15:46:15,166 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 15:46:15,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 15:46:15,167 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 15:46:15,167 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 15:46:15,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 15:46:15,167 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 15:46:15,167 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 15:46:15,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 15:46:15,168 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 15:46:15,168 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 15:46:15,168 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 15:46:15,168 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 15:46:15,168 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 15:46:15,168 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 15:46:15,168 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 15:46:15,168 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 15:46:15,168 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 15:46:15,169 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 15:46:15,169 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 15:46:15,169 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 15:46:15,169 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 15:46:15,169 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 15:46:15,169 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 15:46:15,169 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 15:46:15,170 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 15:46:15,170 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 15:46:15,170 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 15:46:15,170 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 15:46:15,170 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 15:46:15,170 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 15:46:15,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 15:46:15,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 15:46:15,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 15:46:16,309 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 15:46:16,309 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 15:46:16,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:46:16 BoogieIcfgContainer [2020-09-24 15:46:16,316 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 15:46:16,321 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 15:46:16,321 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 15:46:16,325 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 15:46:16,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 03:46:14" (1/3) ... [2020-09-24 15:46:16,326 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13f50f4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:46:16, skipping insertion in model container [2020-09-24 15:46:16,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:14" (2/3) ... [2020-09-24 15:46:16,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13f50f4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:46:16, skipping insertion in model container [2020-09-24 15:46:16,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:46:16" (3/3) ... [2020-09-24 15:46:16,329 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product02.cil.c [2020-09-24 15:46:16,340 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 15:46:16,351 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 15:46:16,374 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 15:46:16,403 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 15:46:16,403 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 15:46:16,403 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 15:46:16,403 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 15:46:16,403 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 15:46:16,403 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 15:46:16,404 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 15:46:16,404 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 15:46:16,433 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states. [2020-09-24 15:46:16,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 15:46:16,451 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:46:16,453 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] [2020-09-24 15:46:16,453 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:46:16,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:46:16,460 INFO L82 PathProgramCache]: Analyzing trace with hash -96465303, now seen corresponding path program 1 times [2020-09-24 15:46:16,470 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:46:16,471 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [853343647] [2020-09-24 15:46:16,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:46:16,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:16,800 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:16,800 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:16,800 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:16,801 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:16,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 15:46:16,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:16,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 15:46:16,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:16,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:16,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 15:46:16,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:16,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 15:46:17,298 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:46:17,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:46:17,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:17,348 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:17,349 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:17,349 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:17,349 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:17,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:46:17,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:17,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:17,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:17,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:17,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:17,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:17,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:17,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:46:17,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:17,435 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:17,435 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:17,435 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:17,436 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:17,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:17,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:17,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:17,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:17,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:17,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:17,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:17,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:17,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:46:17,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:17,441 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:17,441 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:17,441 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:17,442 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:17,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:17,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:17,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:17,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:17,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:17,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:17,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:17,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:17,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:46:17,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:17,447 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:17,447 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:17,447 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:17,448 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:17,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:17,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:17,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:17,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:17,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:17,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:17,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:17,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:17,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:46:17,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:17,453 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:17,454 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:17,454 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:17,454 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:17,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:17,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:17,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:17,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:17,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:17,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:17,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:17,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:17,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 15:46:17,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:17,459 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:17,460 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:17,460 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:17,460 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:17,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:17,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:17,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:17,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:17,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:17,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:17,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:17,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:17,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 15:46:17,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:17,467 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:17,467 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:17,467 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:17,467 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:17,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:17,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:17,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:17,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:17,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:17,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:17,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:17,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:17,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 15:46:17,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:17,473 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:17,474 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:17,474 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:17,474 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:17,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:17,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:17,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:17,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:17,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:17,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:17,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:17,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:17,504 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 15:46:17,505 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [853343647] [2020-09-24 15:46:17,508 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:46:17,508 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 15:46:17,509 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803307139] [2020-09-24 15:46:17,516 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 15:46:17,516 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:46:17,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 15:46:17,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 15:46:17,537 INFO L87 Difference]: Start difference. First operand 262 states. Second operand 3 states. [2020-09-24 15:46:18,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:46:18,687 INFO L93 Difference]: Finished difference Result 374 states and 448 transitions. [2020-09-24 15:46:18,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 15:46:18,690 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-24 15:46:18,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:46:18,711 INFO L225 Difference]: With dead ends: 374 [2020-09-24 15:46:18,711 INFO L226 Difference]: Without dead ends: 243 [2020-09-24 15:46:18,717 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 15:46:18,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2020-09-24 15:46:18,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 205. [2020-09-24 15:46:18,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-09-24 15:46:18,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 219 transitions. [2020-09-24 15:46:18,854 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 219 transitions. Word has length 153 [2020-09-24 15:46:18,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:46:18,855 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 219 transitions. [2020-09-24 15:46:18,858 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 15:46:18,858 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 219 transitions. [2020-09-24 15:46:18,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-24 15:46:18,872 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:46:18,872 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] [2020-09-24 15:46:18,872 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 15:46:18,873 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:46:18,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:46:18,873 INFO L82 PathProgramCache]: Analyzing trace with hash -116924770, now seen corresponding path program 1 times [2020-09-24 15:46:18,873 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:46:18,874 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [378161068] [2020-09-24 15:46:18,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:46:18,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:18,964 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:18,964 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:18,964 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:18,964 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:18,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 15:46:18,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:18,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 15:46:18,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:18,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:18,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 15:46:18,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 15:46:18,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:19,287 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:46:19,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:46:19,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:19,308 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:19,308 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:19,308 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:19,309 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:19,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:46:19,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:19,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:19,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:19,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:19,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:19,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:19,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:19,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:46:19,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:19,377 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:19,377 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:19,377 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:19,378 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:19,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:19,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:19,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:19,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:19,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:19,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:19,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:19,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:19,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:46:19,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:19,384 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:19,384 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:19,384 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:19,385 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:19,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:19,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:19,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:19,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:19,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:19,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:19,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:19,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:19,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:46:19,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:19,389 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:19,390 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:19,390 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:19,390 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:19,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:19,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:19,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:19,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:19,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:19,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:19,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:19,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:19,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:46:19,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:19,397 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:19,397 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:19,397 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:19,397 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:19,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:19,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:19,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:46:19,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:19,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:19,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:19,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:19,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:19,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-24 15:46:19,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:19,402 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:19,402 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:19,402 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:19,402 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:19,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:19,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:19,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:19,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:19,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:19,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:19,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:19,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:19,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 15:46:19,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:19,408 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:19,408 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:19,409 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:19,409 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:19,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:19,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:19,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:19,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:19,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:19,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:19,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:19,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:19,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 15:46:19,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:19,414 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:19,414 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:19,414 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:19,415 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:19,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:19,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:19,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:19,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:19,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:19,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:19,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:19,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:19,491 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 15:46:19,493 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [378161068] [2020-09-24 15:46:19,494 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:46:19,494 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 15:46:19,495 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166887148] [2020-09-24 15:46:19,499 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 15:46:19,499 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:46:19,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 15:46:19,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 15:46:19,500 INFO L87 Difference]: Start difference. First operand 205 states and 219 transitions. Second operand 4 states. [2020-09-24 15:46:20,187 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:46:20,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:46:20,854 INFO L93 Difference]: Finished difference Result 287 states and 319 transitions. [2020-09-24 15:46:20,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 15:46:20,855 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-24 15:46:20,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:46:20,860 INFO L225 Difference]: With dead ends: 287 [2020-09-24 15:46:20,860 INFO L226 Difference]: Without dead ends: 226 [2020-09-24 15:46:20,861 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 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 15:46:20,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-09-24 15:46:20,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 195. [2020-09-24 15:46:20,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-09-24 15:46:20,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 206 transitions. [2020-09-24 15:46:20,897 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 206 transitions. Word has length 154 [2020-09-24 15:46:20,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:46:20,898 INFO L479 AbstractCegarLoop]: Abstraction has 195 states and 206 transitions. [2020-09-24 15:46:20,898 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 15:46:20,898 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 206 transitions. [2020-09-24 15:46:20,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-24 15:46:20,901 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:46:20,902 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:46:20,902 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 15:46:20,902 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:46:20,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:46:20,903 INFO L82 PathProgramCache]: Analyzing trace with hash -529547900, now seen corresponding path program 1 times [2020-09-24 15:46:20,903 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:46:20,903 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1637222787] [2020-09-24 15:46:20,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:46:20,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:20,969 FATAL L256 erpolLogProxyWrapper]: Difference in size: 5 [2020-09-24 15:46:20,969 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -42 [2020-09-24 15:46:20,969 FATAL L256 erpolLogProxyWrapper]: Difference in width: 42 [2020-09-24 15:46:20,969 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:20,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-24 15:46:20,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:20,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:46:20,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:20,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:20,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-24 15:46:20,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:46:20,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:21,294 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:46:21,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:46:21,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:21,310 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:21,310 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:21,311 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:21,311 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:21,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:46:21,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:21,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:46:21,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:21,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:21,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:21,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:21,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:21,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:46:21,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:21,375 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:21,375 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:21,375 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:21,375 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:21,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:21,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:21,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:21,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:21,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:21,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:21,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:21,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:21,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:46:21,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:21,380 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:21,381 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:21,381 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:21,383 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:21,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:21,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:21,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:21,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:21,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:21,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:21,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:21,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:21,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:46:21,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:21,388 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:21,389 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:21,389 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:21,389 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:21,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:21,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:21,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:21,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:21,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:21,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:21,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:21,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:21,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:46:21,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:21,396 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:21,397 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:21,397 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:21,397 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:21,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:21,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:21,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:21,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:21,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:21,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:21,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:21,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 15:46:21,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 15:46:21,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:21,414 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:21,415 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:21,415 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:21,415 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:21,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:46:21,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:21,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:21,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:21,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:21,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:21,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 15:46:21,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:21,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 15:46:21,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:21,423 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:21,424 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:21,424 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:21,424 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:21,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:21,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:21,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:21,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:21,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:21,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:21,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:21,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:21,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-24 15:46:21,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:21,430 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:21,431 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:21,431 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:21,431 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:21,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:21,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:21,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:21,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:21,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:21,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:21,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:21,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:21,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-24 15:46:21,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:21,438 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:21,439 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:21,439 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:21,439 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:21,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:21,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:21,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:21,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:21,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:21,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:21,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:21,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:21,529 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 15:46:21,530 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1637222787] [2020-09-24 15:46:21,531 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:46:21,531 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 15:46:21,532 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697283640] [2020-09-24 15:46:21,533 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 15:46:21,533 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:46:21,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 15:46:21,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 15:46:21,534 INFO L87 Difference]: Start difference. First operand 195 states and 206 transitions. Second operand 5 states. [2020-09-24 15:46:22,080 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:46:23,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:46:23,085 INFO L93 Difference]: Finished difference Result 333 states and 381 transitions. [2020-09-24 15:46:23,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 15:46:23,087 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-09-24 15:46:23,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:46:23,098 INFO L225 Difference]: With dead ends: 333 [2020-09-24 15:46:23,098 INFO L226 Difference]: Without dead ends: 248 [2020-09-24 15:46:23,102 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 15:46:23,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2020-09-24 15:46:23,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 195. [2020-09-24 15:46:23,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-09-24 15:46:23,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 205 transitions. [2020-09-24 15:46:23,164 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 205 transitions. Word has length 167 [2020-09-24 15:46:23,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:46:23,165 INFO L479 AbstractCegarLoop]: Abstraction has 195 states and 205 transitions. [2020-09-24 15:46:23,165 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 15:46:23,166 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 205 transitions. [2020-09-24 15:46:23,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-24 15:46:23,174 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:46:23,174 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:46:23,175 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 15:46:23,175 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:46:23,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:46:23,176 INFO L82 PathProgramCache]: Analyzing trace with hash -1664545682, now seen corresponding path program 1 times [2020-09-24 15:46:23,176 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:46:23,176 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [235360381] [2020-09-24 15:46:23,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:46:23,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:23,308 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:23,308 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:23,309 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:23,309 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:23,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-24 15:46:23,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:23,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-24 15:46:23,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:23,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 15:46:23,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 15:46:23,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 15:46:23,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:23,719 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:46:23,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:46:23,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:23,770 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:23,770 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:23,770 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:23,771 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:23,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:46:23,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:23,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:23,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:23,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:23,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:23,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 15:46:23,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:23,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:46:23,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:23,826 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:23,826 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:23,826 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:23,826 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:23,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:23,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:23,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:23,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:23,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:23,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:23,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:46:23,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:23,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:46:23,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:23,831 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:23,831 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:23,832 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:23,832 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:23,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:23,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:23,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:23,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:23,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:23,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:23,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:46:23,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:23,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:46:23,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:23,838 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:23,838 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:23,838 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:23,839 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:23,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:23,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:23,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:23,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:23,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:23,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:23,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:46:23,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:23,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:46:23,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:23,845 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:23,845 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:23,845 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:23,846 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:23,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:23,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:23,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:23,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:23,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:23,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:23,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:46:23,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:23,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 15:46:23,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:23,865 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:23,865 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:23,866 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:23,866 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:23,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:46:23,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:23,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:23,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:23,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:23,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:23,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 15:46:23,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:23,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 15:46:23,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:23,871 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:23,871 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:23,871 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:23,872 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:23,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:23,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:23,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:23,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:23,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:23,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:23,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:46:23,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:23,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-24 15:46:23,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:23,877 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:23,877 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:23,877 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:23,877 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:23,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:23,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:23,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:23,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:23,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:23,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:23,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:46:23,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:23,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 15:46:23,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:23,893 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:23,894 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:23,894 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:23,894 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:23,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:23,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:23,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:46:23,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:23,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:46:23,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:23,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:46:23,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:23,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-24 15:46:23,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:23,929 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:23,930 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:23,930 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:23,930 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:23,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:23,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:23,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:23,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:23,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:23,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:23,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:23,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:23,970 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 15:46:23,970 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [235360381] [2020-09-24 15:46:23,971 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:46:23,971 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 15:46:23,972 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747573165] [2020-09-24 15:46:23,972 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 15:46:23,973 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:46:23,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 15:46:23,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 15:46:23,974 INFO L87 Difference]: Start difference. First operand 195 states and 205 transitions. Second operand 9 states. [2020-09-24 15:46:24,490 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:46:25,759 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:46:26,108 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:46:26,443 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:46:26,746 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:46:27,042 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:46:27,395 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:46:27,671 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:46:28,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:46:28,256 INFO L93 Difference]: Finished difference Result 431 states and 508 transitions. [2020-09-24 15:46:28,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 15:46:28,257 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 170 [2020-09-24 15:46:28,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:46:28,262 INFO L225 Difference]: With dead ends: 431 [2020-09-24 15:46:28,262 INFO L226 Difference]: Without dead ends: 346 [2020-09-24 15:46:28,264 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-24 15:46:28,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-09-24 15:46:28,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 273. [2020-09-24 15:46:28,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 273 states. [2020-09-24 15:46:28,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 296 transitions. [2020-09-24 15:46:28,307 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 296 transitions. Word has length 170 [2020-09-24 15:46:28,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:46:28,308 INFO L479 AbstractCegarLoop]: Abstraction has 273 states and 296 transitions. [2020-09-24 15:46:28,308 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 15:46:28,308 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 296 transitions. [2020-09-24 15:46:28,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-24 15:46:28,311 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:46:28,311 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:46:28,311 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 15:46:28,311 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:46:28,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:46:28,312 INFO L82 PathProgramCache]: Analyzing trace with hash -1378336310, now seen corresponding path program 1 times [2020-09-24 15:46:28,312 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:46:28,312 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [527784596] [2020-09-24 15:46:28,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:46:28,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 15:46:28,403 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 15:46:28,404 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 15:46:28,409 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 15:46:28,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 03:46:28 BoogieIcfgContainer [2020-09-24 15:46:28,436 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 15:46:28,438 INFO L168 Benchmark]: Toolchain (without parser) took 14270.65 ms. Allocated memory was 142.1 MB in the beginning and 465.6 MB in the end (delta: 323.5 MB). Free memory was 104.6 MB in the beginning and 212.8 MB in the end (delta: -108.2 MB). Peak memory consumption was 215.3 MB. Max. memory is 7.1 GB. [2020-09-24 15:46:28,439 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 142.1 MB. Free memory was 123.6 MB in the beginning and 123.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 15:46:28,440 INFO L168 Benchmark]: CACSL2BoogieTranslator took 775.50 ms. Allocated memory was 142.1 MB in the beginning and 205.0 MB in the end (delta: 62.9 MB). Free memory was 104.0 MB in the beginning and 176.0 MB in the end (delta: -72.1 MB). Peak memory consumption was 28.0 MB. Max. memory is 7.1 GB. [2020-09-24 15:46:28,441 INFO L168 Benchmark]: Boogie Preprocessor took 104.35 ms. Allocated memory is still 205.0 MB. Free memory was 176.0 MB in the beginning and 172.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-09-24 15:46:28,442 INFO L168 Benchmark]: RCFGBuilder took 1258.19 ms. Allocated memory was 205.0 MB in the beginning and 235.4 MB in the end (delta: 30.4 MB). Free memory was 172.0 MB in the beginning and 180.0 MB in the end (delta: -8.0 MB). Peak memory consumption was 82.1 MB. Max. memory is 7.1 GB. [2020-09-24 15:46:28,443 INFO L168 Benchmark]: TraceAbstraction took 12115.19 ms. Allocated memory was 235.4 MB in the beginning and 465.6 MB in the end (delta: 230.2 MB). Free memory was 180.0 MB in the beginning and 212.8 MB in the end (delta: -32.8 MB). Peak memory consumption was 197.4 MB. Max. memory is 7.1 GB. [2020-09-24 15:46:28,447 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 142.1 MB. Free memory was 123.6 MB in the beginning and 123.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 775.50 ms. Allocated memory was 142.1 MB in the beginning and 205.0 MB in the end (delta: 62.9 MB). Free memory was 104.0 MB in the beginning and 176.0 MB in the end (delta: -72.1 MB). Peak memory consumption was 28.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 104.35 ms. Allocated memory is still 205.0 MB. Free memory was 176.0 MB in the beginning and 172.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1258.19 ms. Allocated memory was 205.0 MB in the beginning and 235.4 MB in the end (delta: 30.4 MB). Free memory was 172.0 MB in the beginning and 180.0 MB in the end (delta: -8.0 MB). Peak memory consumption was 82.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12115.19 ms. Allocated memory was 235.4 MB in the beginning and 465.6 MB in the end (delta: 230.2 MB). Free memory was 180.0 MB in the beginning and 212.8 MB in the end (delta: -32.8 MB). Peak memory consumption was 197.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 82]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L256] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L462] int pumpRunning = 0; [L463] int systemActive = 1; [L683] int cleanupTimeShifts = 4; [L779] int waterLevel = 1; [L780] int methaneLevelCritical = 0; [L756] int retValue_acc ; [L757] int tmp ; [L761] FCALL select_helpers() [L762] FCALL select_features() [L763] CALL, EXPR valid_product() [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L763] RET, EXPR valid_product() [L763] tmp = valid_product() [L765] COND TRUE \read(tmp) [L767] FCALL setup() [L768] CALL runTest() [L750] CALL test() [L617] int splverifierCounter ; [L618] int tmp ; [L619] int tmp___0 ; [L620] int tmp___1 ; [L621] int tmp___2 ; [L624] splverifierCounter = 0 [L626] COND TRUE 1 [L628] COND TRUE splverifierCounter < 4 [L634] tmp = __VERIFIER_nondet_int() [L636] COND TRUE \read(tmp) [L638] CALL waterRise() [L797] COND TRUE waterLevel < 2 [L798] waterLevel = waterLevel + 1 [L638] RET waterRise() [L644] tmp___0 = __VERIFIER_nondet_int() [L646] COND FALSE !(\read(tmp___0)) [L654] tmp___2 = __VERIFIER_nondet_int() [L656] COND TRUE \read(tmp___2) [L658] CALL startSystem() [L573] systemActive = 1 [L658] RET startSystem() [L671] CALL timeShift() [L470] COND FALSE !(\read(pumpRunning)) [L477] COND TRUE \read(systemActive) [L479] FCALL processEnvironment() [L485] CALL __utac_acc__Specification3_spec__1() [L580] int tmp ; [L581] int tmp___0 ; [L582] int tmp___1 ; [L586] CALL, EXPR isMethaneLevelCritical() [L818] int retValue_acc ; [L821] retValue_acc = methaneLevelCritical [L822] return (retValue_acc); [L586] RET, EXPR isMethaneLevelCritical() [L586] tmp = isMethaneLevelCritical() [L588] COND FALSE !(\read(tmp)) [L592] CALL, EXPR getWaterLevel() [L850] int retValue_acc ; [L853] retValue_acc = waterLevel [L854] return (retValue_acc); [L592] RET, EXPR getWaterLevel() [L592] tmp___0 = getWaterLevel() [L594] COND TRUE tmp___0 == 2 [L596] CALL, EXPR isPumpRunning() [L525] int retValue_acc ; [L528] retValue_acc = pumpRunning [L529] return (retValue_acc); [L596] RET, EXPR isPumpRunning() [L596] tmp___1 = isPumpRunning() [L598] COND FALSE !(\read(tmp___1)) [L602] CALL __automaton_fail() [L82] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 35 procedures, 582 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 12.0s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 8.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 760 SDtfs, 852 SDslu, 743 SDs, 0 SdLazy, 1445 SolverSat, 261 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 104 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=273occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 195 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 819 NumberOfCodeBlocks, 819 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 640 ConstructedInterpolants, 0 QuantifiedInterpolants, 242296 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 proved your program to be incorrect! Received shutdown request...