/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 enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --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_spec2_product36.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 23:33:11,536 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 23:33:11,540 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 23:33:11,580 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 23:33:11,581 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 23:33:11,589 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 23:33:11,591 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 23:33:11,594 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 23:33:11,597 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 23:33:11,600 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 23:33:11,601 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 23:33:11,602 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 23:33:11,602 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 23:33:11,605 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 23:33:11,608 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 23:33:11,609 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 23:33:11,611 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 23:33:11,612 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 23:33:11,613 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 23:33:11,623 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 23:33:11,625 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 23:33:11,626 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 23:33:11,627 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 23:33:11,628 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 23:33:11,643 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 23:33:11,643 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 23:33:11,643 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 23:33:11,644 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 23:33:11,648 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 23:33:11,649 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 23:33:11,649 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 23:33:11,650 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 23:33:11,651 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 23:33:11,652 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 23:33:11,656 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 23:33:11,656 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 23:33:11,657 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 23:33:11,657 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 23:33:11,657 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 23:33:11,660 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 23:33:11,661 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 23:33:11,662 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 23:33:11,687 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 23:33:11,687 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 23:33:11,688 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 23:33:11,688 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 23:33:11,689 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 23:33:11,689 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 23:33:11,689 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 23:33:11,689 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 23:33:11,690 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 23:33:11,690 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 23:33:11,690 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 23:33:11,690 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 23:33:11,690 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 23:33:11,691 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 23:33:11,691 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 23:33:11,691 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 23:33:11,691 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 23:33:11,691 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 23:33:11,692 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 23:33:11,692 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 23:33:11,692 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 23:33:11,692 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:33:11,693 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 23:33:11,693 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 23:33:11,693 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 23:33:11,693 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 23:33:11,693 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 23:33:11,694 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 23:33:11,694 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 23:33:11,694 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;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;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;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;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;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;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;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;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;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; [2020-09-24 23:33:12,132 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 23:33:12,156 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 23:33:12,161 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 23:33:12,163 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 23:33:12,163 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 23:33:12,164 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product36.cil.c [2020-09-24 23:33:12,231 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c78119eb8/2d12794d9bf246fe865ac741403b5b79/FLAG28d8fc3d8 [2020-09-24 23:33:12,810 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 23:33:12,811 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product36.cil.c [2020-09-24 23:33:12,823 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c78119eb8/2d12794d9bf246fe865ac741403b5b79/FLAG28d8fc3d8 [2020-09-24 23:33:13,078 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c78119eb8/2d12794d9bf246fe865ac741403b5b79 [2020-09-24 23:33:13,092 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 23:33:13,097 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 23:33:13,098 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 23:33:13,098 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 23:33:13,102 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 23:33:13,103 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:33:13" (1/1) ... [2020-09-24 23:33:13,109 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11967da3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:33:13, skipping insertion in model container [2020-09-24 23:33:13,109 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:33:13" (1/1) ... [2020-09-24 23:33:13,118 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 23:33:13,166 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 23:33:13,521 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:33:13,659 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 23:33:13,769 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:33:13,806 INFO L208 MainTranslator]: Completed translation [2020-09-24 23:33:13,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:33:13 WrapperNode [2020-09-24 23:33:13,807 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 23:33:13,808 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 23:33:13,808 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 23:33:13,808 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 23:33:13,826 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:33:13" (1/1) ... [2020-09-24 23:33:13,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:33:13" (1/1) ... [2020-09-24 23:33:13,860 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:33:13" (1/1) ... [2020-09-24 23:33:13,860 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:33:13" (1/1) ... [2020-09-24 23:33:13,898 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:33:13" (1/1) ... [2020-09-24 23:33:13,908 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:33:13" (1/1) ... [2020-09-24 23:33:13,913 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:33:13" (1/1) ... [2020-09-24 23:33:13,920 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 23:33:13,921 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 23:33:13,921 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 23:33:13,921 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 23:33:13,922 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:33:13" (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 23:33:14,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 23:33:14,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 23:33:14,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 23:33:14,001 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 23:33:14,001 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 23:33:14,001 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 23:33:14,001 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 23:33:14,002 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 23:33:14,002 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 23:33:14,002 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 23:33:14,002 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 23:33:14,002 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 23:33:14,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 23:33:14,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 23:33:14,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 23:33:14,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 23:33:14,003 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 23:33:14,004 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 23:33:14,004 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 23:33:14,004 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 23:33:14,004 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 23:33:14,005 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 23:33:14,005 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 23:33:14,005 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 23:33:14,005 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 23:33:14,005 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 23:33:14,005 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 23:33:14,006 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 23:33:14,006 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 23:33:14,006 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 23:33:14,006 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 23:33:14,006 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 23:33:14,006 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 23:33:14,007 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 23:33:14,007 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 23:33:14,007 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 23:33:14,007 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 23:33:14,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 23:33:14,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-24 23:33:14,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-24 23:33:14,008 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 23:33:14,008 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 23:33:14,008 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 23:33:14,008 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 23:33:14,008 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 23:33:14,008 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 23:33:14,009 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 23:33:14,009 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 23:33:14,009 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 23:33:14,009 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 23:33:14,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 23:33:14,009 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 23:33:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 23:33:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 23:33:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 23:33:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 23:33:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 23:33:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 23:33:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 23:33:14,011 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 23:33:14,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 23:33:14,011 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 23:33:14,011 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 23:33:14,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 23:33:14,011 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 23:33:14,012 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 23:33:14,012 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 23:33:14,012 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 23:33:14,012 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 23:33:14,012 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 23:33:14,012 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 23:33:14,012 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 23:33:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 23:33:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 23:33:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 23:33:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 23:33:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-24 23:33:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 23:33:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 23:33:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 23:33:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 23:33:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 23:33:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 23:33:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 23:33:14,015 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 23:33:14,015 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-24 23:33:14,015 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 23:33:14,015 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 23:33:14,015 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 23:33:14,015 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 23:33:14,015 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 23:33:14,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 23:33:14,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 23:33:14,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 23:33:15,127 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 23:33:15,127 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 23:33:15,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:33:15 BoogieIcfgContainer [2020-09-24 23:33:15,134 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 23:33:15,135 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 23:33:15,135 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 23:33:15,139 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 23:33:15,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:33:13" (1/3) ... [2020-09-24 23:33:15,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dab8414 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:33:15, skipping insertion in model container [2020-09-24 23:33:15,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:33:13" (2/3) ... [2020-09-24 23:33:15,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dab8414 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:33:15, skipping insertion in model container [2020-09-24 23:33:15,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:33:15" (3/3) ... [2020-09-24 23:33:15,143 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product36.cil.c [2020-09-24 23:33:15,154 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 23:33:15,163 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 23:33:15,183 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 23:33:15,215 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 23:33:15,215 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 23:33:15,215 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 23:33:15,215 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 23:33:15,215 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 23:33:15,215 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 23:33:15,216 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 23:33:15,216 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 23:33:15,244 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states. [2020-09-24 23:33:15,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 23:33:15,262 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:33:15,263 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] [2020-09-24 23:33:15,264 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:33:15,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:33:15,272 INFO L82 PathProgramCache]: Analyzing trace with hash 581335990, now seen corresponding path program 1 times [2020-09-24 23:33:15,283 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:33:15,283 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [947678213] [2020-09-24 23:33:15,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:33:15,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:15,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:15,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:17,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:18,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:18,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:20,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:20,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 23:33:20,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 23:33:20,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-24 23:33:20,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:20,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 23:33:20,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 23:33:20,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-24 23:33:20,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 23:33:21,145 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:33:21,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:33:21,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:21,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:21,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:21,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 23:33:21,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:21,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 264 [2020-09-24 23:33:21,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:21,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:21,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:21,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 23:33:21,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:21,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 23:33:21,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:21,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:21,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:21,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:33:21,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:21,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 23:33:21,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:21,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:21,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:21,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:33:21,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:21,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 23:33:21,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:21,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:21,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:21,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:33:21,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:21,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:33:21,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:21,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:21,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:21,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:33:21,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:21,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 23:33:21,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:21,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:21,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:21,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:33:21,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:21,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 23:33:21,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:21,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:21,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:21,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:33:21,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:21,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 23:33:21,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:21,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:21,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:21,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:33:21,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:21,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:33:21,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:21,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:21,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:21,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:33:21,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:21,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 23:33:21,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:21,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:21,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:21,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:33:21,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:21,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:33:21,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:21,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:21,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:21,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:33:21,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:21,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 23:33:21,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:21,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:21,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:21,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:33:21,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:21,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 23:33:21,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:21,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:33:21,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:21,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:33:21,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:21,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 23:33:21,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:21,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:21,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:21,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:33:21,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:21,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:33:21,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:21,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:33:21,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:33:21,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:33:21,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:21,785 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 23:33:21,786 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [947678213] [2020-09-24 23:33:21,788 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:33:21,789 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 23:33:21,790 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777140932] [2020-09-24 23:33:21,797 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 23:33:21,798 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:33:21,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 23:33:21,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 23:33:21,821 INFO L87 Difference]: Start difference. First operand 306 states. Second operand 9 states. [2020-09-24 23:33:22,433 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:33:23,470 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:33:23,856 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 23:33:24,193 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:33:24,611 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 23:33:24,963 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:33:25,839 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:33:26,182 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:33:26,664 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:33:27,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:33:27,490 INFO L93 Difference]: Finished difference Result 614 states and 744 transitions. [2020-09-24 23:33:27,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 23:33:27,497 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 148 [2020-09-24 23:33:27,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:33:27,523 INFO L225 Difference]: With dead ends: 614 [2020-09-24 23:33:27,523 INFO L226 Difference]: Without dead ends: 427 [2020-09-24 23:33:27,530 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-09-24 23:33:27,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2020-09-24 23:33:27,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 355. [2020-09-24 23:33:27,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 355 states. [2020-09-24 23:33:27,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 390 transitions. [2020-09-24 23:33:27,671 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 390 transitions. Word has length 148 [2020-09-24 23:33:27,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:33:27,672 INFO L479 AbstractCegarLoop]: Abstraction has 355 states and 390 transitions. [2020-09-24 23:33:27,672 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 23:33:27,672 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 390 transitions. [2020-09-24 23:33:27,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-24 23:33:27,678 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:33:27,678 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 23:33:27,679 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 23:33:27,679 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:33:27,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:33:27,679 INFO L82 PathProgramCache]: Analyzing trace with hash -1683397205, now seen corresponding path program 1 times [2020-09-24 23:33:27,680 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:33:27,680 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1471658813] [2020-09-24 23:33:27,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:33:27,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:27,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:28,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:28,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:29,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:32,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:32,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-09-24 23:33:32,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:33:32,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-09-24 23:33:32,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:32,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 23:33:32,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 23:33:32,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-09-24 23:33:32,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:33,119 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:33:33,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:33:33,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:33,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:33,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:33,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 23:33:33,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:33,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 245 [2020-09-24 23:33:33,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:33,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:33,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:33,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 23:33:33,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:33,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 23:33:33,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:33,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:33,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:33,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:33:33,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:33,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:33:33,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:33,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:33,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:33,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:33:33,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:33,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 23:33:33,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:33,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:33,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:33,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:33:33,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:33,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:33:33,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:33,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:33,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:33,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:33:33,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:33,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 23:33:33,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:33,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:33,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:33,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:33:33,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:33,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:33:33,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:33,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:33,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:33,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:33:33,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:33,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 23:33:33,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:33,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:33,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:33,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:33:33,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:33,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:33:33,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:33,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:33,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:33,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:33:33,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:33,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 23:33:33,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:33,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:33,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:33,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:33:33,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:33,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:33:33,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:33,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:33,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:33,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:33:33,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 23:33:33,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 23:33:33,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:33,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:33,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:33,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:33:33,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:33,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:33:33,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:33,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:33,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:33,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:33:33,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:33,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 23:33:33,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:33,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:33,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:33,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:33:33,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:33,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:33:33,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:33,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:33,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:33,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:33:33,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:33,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 23:33:33,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:33,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:33,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:33,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:33:33,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:33,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:33:33,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:33,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:33,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:33,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:33:33,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:33,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-24 23:33:33,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:33,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:33,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:33,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:33:33,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:33,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:33:33,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:33,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:33:33,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:33,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:33:33,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:33,693 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 23:33:33,694 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1471658813] [2020-09-24 23:33:33,694 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:33:33,694 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 23:33:33,694 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949724298] [2020-09-24 23:33:33,698 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 23:33:33,699 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:33:33,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 23:33:33,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 23:33:33,700 INFO L87 Difference]: Start difference. First operand 355 states and 390 transitions. Second operand 11 states. [2020-09-24 23:33:34,275 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:33:36,057 WARN L193 SmtUtils]: Spent 604.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-09-24 23:33:36,689 WARN L193 SmtUtils]: Spent 599.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 193 [2020-09-24 23:33:37,113 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:33:37,488 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:33:37,812 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:33:38,626 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:33:38,946 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 23:33:39,359 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:33:41,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:33:41,233 INFO L93 Difference]: Finished difference Result 1020 states and 1315 transitions. [2020-09-24 23:33:41,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-09-24 23:33:41,233 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 167 [2020-09-24 23:33:41,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:33:41,243 INFO L225 Difference]: With dead ends: 1020 [2020-09-24 23:33:41,244 INFO L226 Difference]: Without dead ends: 780 [2020-09-24 23:33:41,247 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 307 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=342, Invalid=990, Unknown=0, NotChecked=0, Total=1332 [2020-09-24 23:33:41,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2020-09-24 23:33:41,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 516. [2020-09-24 23:33:41,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 516 states. [2020-09-24 23:33:41,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 589 transitions. [2020-09-24 23:33:41,358 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 589 transitions. Word has length 167 [2020-09-24 23:33:41,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:33:41,359 INFO L479 AbstractCegarLoop]: Abstraction has 516 states and 589 transitions. [2020-09-24 23:33:41,359 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 23:33:41,359 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 589 transitions. [2020-09-24 23:33:41,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-09-24 23:33:41,363 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:33:41,364 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:33:41,364 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 23:33:41,364 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:33:41,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:33:41,365 INFO L82 PathProgramCache]: Analyzing trace with hash 2084142011, now seen corresponding path program 1 times [2020-09-24 23:33:41,365 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:33:41,365 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [96967320] [2020-09-24 23:33:41,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:33:41,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:41,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:41,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:41,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:41,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:42,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:44,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:46,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:46,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-09-24 23:33:46,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 23:33:46,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-09-24 23:33:46,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:46,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:46,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-24 23:33:46,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-24 23:33:46,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:46,821 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:33:46,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:33:46,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:46,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:46,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:46,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 23:33:46,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:46,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-09-24 23:33:46,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:46,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:33:46,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:46,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:33:46,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:47,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 23:33:47,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:47,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:47,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:47,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:33:47,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:47,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:33:47,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:47,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:33:47,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:47,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:33:47,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:47,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 23:33:47,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:47,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:47,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:47,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:33:47,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:47,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:33:47,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:47,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:33:47,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:47,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:33:47,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:47,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 23:33:47,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:47,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:47,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:47,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:33:47,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:47,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:33:47,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:47,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:33:47,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:47,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:33:47,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:47,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 23:33:47,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:47,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:47,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:47,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:33:47,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:47,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:33:47,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:47,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:33:47,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:47,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:33:47,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:47,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 23:33:47,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:47,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:47,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:47,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:33:47,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:47,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:33:47,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:47,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:33:47,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:47,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:33:47,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:47,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 23:33:47,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:47,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:47,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:47,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:33:47,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:47,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:33:47,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:47,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:47,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:47,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:33:47,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:47,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 23:33:47,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:47,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:47,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:47,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:33:47,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:47,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:33:47,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:47,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:47,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:47,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:33:47,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:47,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-24 23:33:47,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:47,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:47,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:47,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-24 23:33:47,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:47,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:33:47,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:47,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:47,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:47,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-24 23:33:47,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:47,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:33:47,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:47,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:47,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:47,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 23:33:47,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:47,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 23:33:47,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:47,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:33:47,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:47,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:33:47,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:47,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:33:47,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:47,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:47,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:47,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:33:47,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:47,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:33:47,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:47,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:33:47,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:47,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:33:47,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:47,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-09-24 23:33:47,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:47,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:47,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:47,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:47,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 23:33:47,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:33:47,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-24 23:33:47,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:47,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:33:47,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 23:33:47,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:33:47,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:47,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:33:47,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:47,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:47,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:47,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:33:47,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:47,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-24 23:33:47,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:47,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:33:47,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:47,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 23:33:47,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:47,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:33:47,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:47,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:47,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:47,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:33:47,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:47,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:33:47,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:47,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:33:47,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:47,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:33:47,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:47,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 23:33:47,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:47,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:47,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:47,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:33:47,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:47,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:33:47,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:47,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:33:47,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 23:33:47,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:33:47,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:47,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-09-24 23:33:47,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:47,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:47,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:47,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:33:47,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:47,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:33:47,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:47,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:33:47,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:33:47,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:33:47,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:47,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2020-09-24 23:33:47,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:47,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:47,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:47,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:33:47,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:47,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:33:47,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:47,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:33:47,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:33:47,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:33:47,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:47,650 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-24 23:33:47,651 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [96967320] [2020-09-24 23:33:47,651 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:33:47,651 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-24 23:33:47,651 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189989669] [2020-09-24 23:33:47,653 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-24 23:33:47,686 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:33:47,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-24 23:33:47,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-09-24 23:33:47,687 INFO L87 Difference]: Start difference. First operand 516 states and 589 transitions. Second operand 14 states. [2020-09-24 23:33:48,578 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:33:50,006 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:33:50,355 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:33:50,735 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-24 23:33:51,170 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:33:51,562 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 23:33:51,889 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:33:53,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:33:53,790 INFO L93 Difference]: Finished difference Result 1326 states and 1719 transitions. [2020-09-24 23:33:53,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-09-24 23:33:53,790 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 226 [2020-09-24 23:33:53,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:33:53,803 INFO L225 Difference]: With dead ends: 1326 [2020-09-24 23:33:53,803 INFO L226 Difference]: Without dead ends: 925 [2020-09-24 23:33:53,808 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 467 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=413, Invalid=1567, Unknown=0, NotChecked=0, Total=1980 [2020-09-24 23:33:53,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2020-09-24 23:33:53,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 518. [2020-09-24 23:33:53,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 518 states. [2020-09-24 23:33:53,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 577 transitions. [2020-09-24 23:33:53,906 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 577 transitions. Word has length 226 [2020-09-24 23:33:53,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:33:53,907 INFO L479 AbstractCegarLoop]: Abstraction has 518 states and 577 transitions. [2020-09-24 23:33:53,908 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-24 23:33:53,908 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 577 transitions. [2020-09-24 23:33:53,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-09-24 23:33:53,911 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:33:53,911 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, 1, 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 23:33:53,912 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 23:33:53,912 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:33:53,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:33:53,912 INFO L82 PathProgramCache]: Analyzing trace with hash 289623879, now seen corresponding path program 1 times [2020-09-24 23:33:53,913 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:33:53,913 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2055389694] [2020-09-24 23:33:53,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:33:53,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:54,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:54,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:57,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:57,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 243 [2020-09-24 23:33:57,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:33:57,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3399 [2020-09-24 23:33:57,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:57,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:33:57,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-24 23:33:57,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-09-24 23:33:57,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:57,706 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:33:57,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:33:57,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:57,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:57,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:57,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 23:33:57,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:57,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-24 23:33:57,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:57,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:33:57,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:57,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:33:57,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:57,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 23:33:57,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:57,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:57,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:57,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:33:57,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:57,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:33:57,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:57,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:33:57,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:57,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:33:57,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:57,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 23:33:57,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:57,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:57,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:57,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:33:57,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:57,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:33:57,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:57,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:33:57,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:57,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:33:57,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:57,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 23:33:57,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:57,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:57,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:57,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:33:57,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:57,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:33:57,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:57,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:33:57,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:57,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:33:57,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:57,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 23:33:57,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:57,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:57,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:57,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:33:57,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:57,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:33:57,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:57,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:33:57,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:57,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:33:57,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:57,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 23:33:57,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:57,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:57,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:57,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:33:57,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:57,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:33:57,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:57,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:57,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:57,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 23:33:57,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:57,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 23:33:57,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:57,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:57,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:57,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:33:57,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:57,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:33:57,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:57,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:57,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:57,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:33:57,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:57,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 23:33:57,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:57,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:57,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:57,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:33:57,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:57,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:33:57,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:57,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:57,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:57,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:33:57,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:57,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 23:33:58,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:58,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:58,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:58,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:58,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 23:33:58,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:33:58,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-24 23:33:58,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:58,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:58,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:58,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-24 23:33:58,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:58,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:33:58,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:58,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:58,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:58,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:58,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:33:58,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:33:58,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-24 23:33:58,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:58,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:33:58,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:58,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:33:58,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:58,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:33:58,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:58,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:58,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:58,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:33:58,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:58,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:33:58,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:58,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:33:58,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:58,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:33:58,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:58,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 23:33:58,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:58,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:58,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:58,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:33:58,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:58,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:33:58,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:58,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:33:58,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:58,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:33:58,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:58,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-24 23:33:58,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:58,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:58,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:58,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:33:58,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:58,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:33:58,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:58,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:58,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:58,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:33:58,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:58,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-24 23:33:58,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:58,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:58,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:58,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:33:58,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:58,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:33:58,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:58,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:58,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:58,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:33:58,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:58,279 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 23:33:58,280 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2055389694] [2020-09-24 23:33:58,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:33:58,280 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 23:33:58,281 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190188913] [2020-09-24 23:33:58,282 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 23:33:58,282 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:33:58,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 23:33:58,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-24 23:33:58,283 INFO L87 Difference]: Start difference. First operand 518 states and 577 transitions. Second operand 8 states. [2020-09-24 23:33:58,854 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:34:01,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:34:01,558 INFO L93 Difference]: Finished difference Result 1446 states and 1917 transitions. [2020-09-24 23:34:01,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-24 23:34:01,559 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 200 [2020-09-24 23:34:01,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:34:01,574 INFO L225 Difference]: With dead ends: 1446 [2020-09-24 23:34:01,574 INFO L226 Difference]: Without dead ends: 1443 [2020-09-24 23:34:01,576 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=212, Invalid=544, Unknown=0, NotChecked=0, Total=756 [2020-09-24 23:34:01,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1443 states. [2020-09-24 23:34:01,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1443 to 718. [2020-09-24 23:34:01,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 718 states. [2020-09-24 23:34:01,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 718 states to 718 states and 811 transitions. [2020-09-24 23:34:01,771 INFO L78 Accepts]: Start accepts. Automaton has 718 states and 811 transitions. Word has length 200 [2020-09-24 23:34:01,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:34:01,772 INFO L479 AbstractCegarLoop]: Abstraction has 718 states and 811 transitions. [2020-09-24 23:34:01,772 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 23:34:01,773 INFO L276 IsEmpty]: Start isEmpty. Operand 718 states and 811 transitions. [2020-09-24 23:34:01,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-09-24 23:34:01,781 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:34:01,782 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:34:01,782 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 23:34:01,783 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:34:01,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:34:01,784 INFO L82 PathProgramCache]: Analyzing trace with hash -757405594, now seen corresponding path program 1 times [2020-09-24 23:34:01,784 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:34:01,785 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1663031188] [2020-09-24 23:34:01,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:34:01,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:01,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:02,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:03,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking...