/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=BIGGEST --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_product61.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 20:12:01,697 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 20:12:01,700 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 20:12:01,726 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 20:12:01,726 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 20:12:01,727 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 20:12:01,729 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 20:12:01,730 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 20:12:01,732 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 20:12:01,733 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 20:12:01,734 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 20:12:01,735 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 20:12:01,735 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 20:12:01,736 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 20:12:01,737 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 20:12:01,738 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 20:12:01,739 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 20:12:01,740 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 20:12:01,742 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 20:12:01,743 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 20:12:01,745 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 20:12:01,746 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 20:12:01,747 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 20:12:01,748 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 20:12:01,751 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 20:12:01,751 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 20:12:01,751 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 20:12:01,758 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 20:12:01,759 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 20:12:01,760 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 20:12:01,760 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 20:12:01,761 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 20:12:01,762 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 20:12:01,763 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 20:12:01,766 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 20:12:01,766 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 20:12:01,767 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 20:12:01,767 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 20:12:01,767 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 20:12:01,768 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 20:12:01,770 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 20:12:01,771 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 20:12:01,825 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 20:12:01,825 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 20:12:01,830 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 20:12:01,830 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 20:12:01,830 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 20:12:01,830 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 20:12:01,831 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 20:12:01,831 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 20:12:01,831 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 20:12:01,831 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 20:12:01,831 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 20:12:01,832 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 20:12:01,832 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 20:12:01,832 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 20:12:01,832 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 20:12:01,832 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 20:12:01,832 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 20:12:01,834 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 20:12:01,834 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 20:12:01,834 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 20:12:01,834 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 20:12:01,835 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:12:01,835 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 20:12:01,835 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 20:12:01,835 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 20:12:01,836 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 20:12:01,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 20:12:01,836 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 20:12:01,836 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 20:12:01,836 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true; [2020-09-24 20:12:02,325 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 20:12:02,342 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 20:12:02,347 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 20:12:02,349 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 20:12:02,349 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 20:12:02,350 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product61.cil.c [2020-09-24 20:12:02,429 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5edc9d7a3/cd27c2bdb3744142836daa2a5f0908b5/FLAGde58728a2 [2020-09-24 20:12:03,076 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 20:12:03,077 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product61.cil.c [2020-09-24 20:12:03,093 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5edc9d7a3/cd27c2bdb3744142836daa2a5f0908b5/FLAGde58728a2 [2020-09-24 20:12:03,337 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5edc9d7a3/cd27c2bdb3744142836daa2a5f0908b5 [2020-09-24 20:12:03,350 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 20:12:03,357 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 20:12:03,358 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 20:12:03,358 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 20:12:03,362 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 20:12:03,363 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:12:03" (1/1) ... [2020-09-24 20:12:03,368 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64fec7e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:03, skipping insertion in model container [2020-09-24 20:12:03,368 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:12:03" (1/1) ... [2020-09-24 20:12:03,377 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 20:12:03,438 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 20:12:03,923 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:12:03,938 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 20:12:04,078 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:12:04,119 INFO L208 MainTranslator]: Completed translation [2020-09-24 20:12:04,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:04 WrapperNode [2020-09-24 20:12:04,119 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 20:12:04,120 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 20:12:04,120 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 20:12:04,120 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 20:12:04,135 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:04" (1/1) ... [2020-09-24 20:12:04,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:04" (1/1) ... [2020-09-24 20:12:04,157 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:04" (1/1) ... [2020-09-24 20:12:04,158 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:04" (1/1) ... [2020-09-24 20:12:04,194 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:04" (1/1) ... [2020-09-24 20:12:04,205 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:04" (1/1) ... [2020-09-24 20:12:04,211 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:04" (1/1) ... [2020-09-24 20:12:04,219 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 20:12:04,220 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 20:12:04,220 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 20:12:04,220 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 20:12:04,222 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:04" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:12:04,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 20:12:04,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 20:12:04,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 20:12:04,310 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-24 20:12:04,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-24 20:12:04,311 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 20:12:04,311 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 20:12:04,311 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 20:12:04,311 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 20:12:04,312 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 20:12:04,312 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 20:12:04,312 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 20:12:04,312 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 20:12:04,312 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 20:12:04,313 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 20:12:04,313 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 20:12:04,313 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 20:12:04,313 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 20:12:04,313 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 20:12:04,314 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 20:12:04,314 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 20:12:04,314 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 20:12:04,314 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 20:12:04,315 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 20:12:04,315 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 20:12:04,315 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 20:12:04,315 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 20:12:04,315 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 20:12:04,315 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 20:12:04,316 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 20:12:04,316 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 20:12:04,316 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 20:12:04,316 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 20:12:04,316 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 20:12:04,316 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 20:12:04,317 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 20:12:04,317 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 20:12:04,317 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 20:12:04,317 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 20:12:04,317 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 20:12:04,317 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 20:12:04,317 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 20:12:04,318 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 20:12:04,318 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 20:12:04,318 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 20:12:04,318 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 20:12:04,318 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 20:12:04,318 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 20:12:04,319 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 20:12:04,319 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-24 20:12:04,319 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-24 20:12:04,319 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 20:12:04,319 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 20:12:04,319 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 20:12:04,320 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 20:12:04,320 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 20:12:04,320 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 20:12:04,320 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 20:12:04,320 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 20:12:04,320 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 20:12:04,321 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 20:12:04,321 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 20:12:04,321 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 20:12:04,321 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 20:12:04,321 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 20:12:04,321 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 20:12:04,322 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 20:12:04,322 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 20:12:04,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 20:12:04,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 20:12:04,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 20:12:04,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 20:12:04,322 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 20:12:04,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 20:12:04,323 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 20:12:04,323 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 20:12:04,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 20:12:04,323 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 20:12:04,323 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 20:12:04,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 20:12:04,324 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 20:12:04,324 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 20:12:04,324 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 20:12:04,324 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 20:12:04,324 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 20:12:04,325 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 20:12:04,325 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 20:12:04,325 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 20:12:04,325 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 20:12:04,325 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 20:12:04,325 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 20:12:04,325 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 20:12:04,326 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 20:12:04,326 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 20:12:04,326 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 20:12:04,326 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 20:12:04,326 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 20:12:04,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 20:12:04,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 20:12:04,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 20:12:05,649 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 20:12:05,650 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 20:12:05,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:12:05 BoogieIcfgContainer [2020-09-24 20:12:05,658 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 20:12:05,660 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 20:12:05,660 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 20:12:05,666 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 20:12:05,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:12:03" (1/3) ... [2020-09-24 20:12:05,667 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6691399f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:12:05, skipping insertion in model container [2020-09-24 20:12:05,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:04" (2/3) ... [2020-09-24 20:12:05,668 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6691399f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:12:05, skipping insertion in model container [2020-09-24 20:12:05,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:12:05" (3/3) ... [2020-09-24 20:12:05,671 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product61.cil.c [2020-09-24 20:12:05,680 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 20:12:05,691 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 20:12:05,714 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 20:12:05,750 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 20:12:05,750 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 20:12:05,750 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 20:12:05,750 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 20:12:05,750 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 20:12:05,750 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 20:12:05,751 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 20:12:05,751 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 20:12:05,782 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states. [2020-09-24 20:12:05,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 20:12:05,801 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:12:05,803 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 20:12:05,803 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:12:05,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:12:05,811 INFO L82 PathProgramCache]: Analyzing trace with hash 425462913, now seen corresponding path program 1 times [2020-09-24 20:12:05,822 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:12:05,822 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [786501788] [2020-09-24 20:12:05,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:12:06,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:06,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:06,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:07,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:08,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:08,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:11,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:11,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 20:12:11,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 20:12:11,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-09-24 20:12:11,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:11,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 20:12:11,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 20:12:11,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-09-24 20:12:11,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 20:12:11,758 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:12:11,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:12:11,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:11,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:12,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:12,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:12:12,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:12,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 305 [2020-09-24 20:12:12,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:12,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:12,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:12,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 20:12:12,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:12:12,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 20:12:12,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:12,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:12,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:12,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:12:12,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:12,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:12:12,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:12,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:12,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:12,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:12:12,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:12,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 20:12:12,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:12,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:12,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:12,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:12:12,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:12,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:12:12,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:12,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:12,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:12,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:12:12,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:12,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 20:12:12,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:12,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:12,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:12,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:12:12,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:12,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 20:12:12,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:12,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:12,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:12,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:12:12,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:12,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 20:12:12,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:12,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:12,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:12,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:12:12,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:12,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:12:12,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:12,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:12,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:12,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:12:12,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:12,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 20:12:12,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:12,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:12,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:12,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:12:12,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:12,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:12:12,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:12,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:12,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:12,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 20:12:12,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:12,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 20:12:12,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:12,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:12,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:12,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:12:12,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:12,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 20:12:12,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:12,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:12:12,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:12,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:12:12,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:12,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 20:12:12,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:12,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:12,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:12,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:12:12,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:12,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:12:12,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:12,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:12:12,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:12:12,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:12:12,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 20:12:12,405 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 20:12:12,406 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [786501788] [2020-09-24 20:12:12,408 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:12:12,408 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 20:12:12,409 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993649474] [2020-09-24 20:12:12,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 20:12:12,417 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:12:12,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 20:12:12,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 20:12:12,439 INFO L87 Difference]: Start difference. First operand 350 states. Second operand 9 states. [2020-09-24 20:12:13,188 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:12:14,209 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:12:14,554 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:12:14,929 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:12:15,349 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:12:15,675 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:12:16,536 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:12:16,891 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:12:17,490 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:12:19,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:12:19,443 INFO L93 Difference]: Finished difference Result 768 states and 926 transitions. [2020-09-24 20:12:19,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 20:12:19,445 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 148 [2020-09-24 20:12:19,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:12:19,468 INFO L225 Difference]: With dead ends: 768 [2020-09-24 20:12:19,468 INFO L226 Difference]: Without dead ends: 531 [2020-09-24 20:12:19,476 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-09-24 20:12:19,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2020-09-24 20:12:19,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 455. [2020-09-24 20:12:19,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 455 states. [2020-09-24 20:12:19,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 510 transitions. [2020-09-24 20:12:19,695 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 510 transitions. Word has length 148 [2020-09-24 20:12:19,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:12:19,699 INFO L479 AbstractCegarLoop]: Abstraction has 455 states and 510 transitions. [2020-09-24 20:12:19,699 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 20:12:19,699 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 510 transitions. [2020-09-24 20:12:19,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-24 20:12:19,713 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:12:19,714 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] [2020-09-24 20:12:19,714 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 20:12:19,715 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:12:19,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:12:19,715 INFO L82 PathProgramCache]: Analyzing trace with hash -1885921087, now seen corresponding path program 1 times [2020-09-24 20:12:19,715 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:12:19,716 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1116287931] [2020-09-24 20:12:19,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:12:19,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:19,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:20,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:20,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:22,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:24,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:24,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-09-24 20:12:24,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 20:12:24,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-09-24 20:12:24,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:24,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 20:12:24,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-24 20:12:24,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-09-24 20:12:24,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:25,165 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:12:25,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:12:25,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:25,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:25,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:25,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:12:25,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:25,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-09-24 20:12:25,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:25,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:25,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:25,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 20:12:25,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:25,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 20:12:25,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:25,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:25,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:25,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:12:25,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:25,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:12:25,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:25,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:25,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:25,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:12:25,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:25,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 20:12:25,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:25,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:25,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:25,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:12:25,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:25,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:12:25,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:25,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:25,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:25,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:12:25,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:25,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 20:12:25,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:25,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:25,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:25,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:12:25,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:25,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:12:25,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:25,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:25,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:25,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:12:25,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:25,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 20:12:25,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:25,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:25,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:25,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:12:25,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:25,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:12:25,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:25,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:25,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:25,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:12:25,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:25,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 20:12:25,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:25,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:25,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:25,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:12:25,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:25,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:12:25,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:25,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:25,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:25,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 20:12:25,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:25,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 20:12:25,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:25,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:25,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:25,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:12:25,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:25,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:12:25,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:25,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:25,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:25,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:12:25,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:25,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-24 20:12:25,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:25,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:25,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:25,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:12:25,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:25,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:12:25,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:25,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:25,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:25,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:12:25,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:25,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-24 20:12:25,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:25,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:25,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:25,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:12:25,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:25,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 20:12:25,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:25,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:12:25,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:25,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:12:25,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:25,674 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 20:12:25,675 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1116287931] [2020-09-24 20:12:25,675 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:12:25,676 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 20:12:25,677 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091389402] [2020-09-24 20:12:25,680 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 20:12:25,680 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:12:25,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 20:12:25,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 20:12:25,683 INFO L87 Difference]: Start difference. First operand 455 states and 510 transitions. Second operand 10 states. [2020-09-24 20:12:26,270 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:12:27,492 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:12:27,821 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 20:12:28,203 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:12:28,584 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-09-24 20:12:28,912 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 20:12:30,342 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:12:30,659 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:12:31,025 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:12:31,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:12:31,987 INFO L93 Difference]: Finished difference Result 1094 states and 1325 transitions. [2020-09-24 20:12:31,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-24 20:12:31,988 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 163 [2020-09-24 20:12:31,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:12:31,998 INFO L225 Difference]: With dead ends: 1094 [2020-09-24 20:12:31,998 INFO L226 Difference]: Without dead ends: 754 [2020-09-24 20:12:32,002 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2020-09-24 20:12:32,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2020-09-24 20:12:32,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 644. [2020-09-24 20:12:32,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 644 states. [2020-09-24 20:12:32,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 731 transitions. [2020-09-24 20:12:32,097 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 731 transitions. Word has length 163 [2020-09-24 20:12:32,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:12:32,098 INFO L479 AbstractCegarLoop]: Abstraction has 644 states and 731 transitions. [2020-09-24 20:12:32,098 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 20:12:32,099 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 731 transitions. [2020-09-24 20:12:32,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-09-24 20:12:32,103 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:12:32,104 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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, 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 20:12:32,104 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 20:12:32,105 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:12:32,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:12:32,105 INFO L82 PathProgramCache]: Analyzing trace with hash -1560503777, now seen corresponding path program 1 times [2020-09-24 20:12:32,105 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:12:32,105 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [217623601] [2020-09-24 20:12:32,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:12:32,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:32,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:32,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:32,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:32,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:32,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:33,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:37,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:37,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 313 [2020-09-24 20:12:37,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 20:12:37,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-24 20:12:37,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:37,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:12:37,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 230 [2020-09-24 20:12:37,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:12:37,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:37,495 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:12:37,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:12:37,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:37,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:37,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:37,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:12:37,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:37,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-24 20:12:37,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:37,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:12:37,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:37,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:12:37,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:12:37,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 20:12:37,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:37,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:37,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:37,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:12:37,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:37,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:12:37,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:37,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:12:37,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:37,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:12:37,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:12:37,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 20:12:37,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:37,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:37,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:37,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:12:37,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:37,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:12:37,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:37,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:12:37,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:37,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:12:37,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:12:37,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 20:12:37,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:37,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:37,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:37,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:12:37,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:37,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:12:37,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:37,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:12:37,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:37,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:12:37,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:12:37,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 20:12:37,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:37,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:37,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:37,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:12:37,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:37,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:12:37,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:37,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:12:37,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:37,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:12:37,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:12:37,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 20:12:37,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:37,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:37,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:37,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:12:37,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:37,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:12:37,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:37,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:12:37,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:37,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:12:37,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:12:37,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 20:12:37,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:37,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:37,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:37,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:12:37,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:37,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:12:37,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:37,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:12:37,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:37,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:12:37,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:12:37,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 20:12:37,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:37,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:37,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:37,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-24 20:12:37,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:37,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:12:37,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:37,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:12:37,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:37,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:12:37,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:12:37,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:12:37,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:37,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:37,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:37,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 20:12:37,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:37,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:12:37,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:37,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:12:37,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:37,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:12:37,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:12:37,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:12:37,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:37,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:37,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:37,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:12:37,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:37,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:12:37,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:37,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:12:37,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:37,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:12:37,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:37,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-09-24 20:12:37,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:37,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:37,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:37,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:12:37,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:37,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-09-24 20:12:37,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:37,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:12:37,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 20:12:37,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:12:37,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:12:37,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:12:37,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:38,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:38,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:38,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 20:12:38,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:38,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-24 20:12:38,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:38,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:12:38,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 20:12:38,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:12:38,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:12:38,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:12:38,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:38,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:38,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:38,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 20:12:38,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:38,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-24 20:12:38,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:38,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:12:38,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 20:12:38,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:12:38,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:38,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:12:38,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:38,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:38,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:38,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 20:12:38,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:38,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 20:12:38,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:38,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:12:38,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:38,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 20:12:38,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:38,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 20:12:38,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:38,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:38,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:38,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:12:38,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:38,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:12:38,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:38,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:12:38,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:38,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:12:38,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:38,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 20:12:38,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:38,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:38,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:38,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 20:12:38,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:38,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 20:12:38,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:38,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:12:38,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 20:12:38,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:12:38,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:38,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 20:12:38,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:38,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:38,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:38,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 20:12:38,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:38,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:12:38,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:38,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:12:38,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:38,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:12:38,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:38,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 20:12:38,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:38,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:38,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:38,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:12:38,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:38,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:12:38,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:38,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:12:38,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:38,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:12:38,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:38,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 20:12:38,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:38,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:38,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:38,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:12:38,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:38,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:12:38,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:38,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:12:38,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:38,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:12:38,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:38,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2020-09-24 20:12:38,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:38,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:38,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:38,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:12:38,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:38,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:12:38,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:38,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:12:38,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:12:38,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:12:38,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:38,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2020-09-24 20:12:38,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:38,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:38,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:38,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:12:38,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:38,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:12:38,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:38,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:12:38,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:12:38,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:12:38,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:38,472 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-24 20:12:38,473 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [217623601] [2020-09-24 20:12:38,473 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:12:38,473 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-24 20:12:38,474 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36999702] [2020-09-24 20:12:38,475 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 20:12:38,475 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:12:38,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 20:12:38,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-09-24 20:12:38,480 INFO L87 Difference]: Start difference. First operand 644 states and 731 transitions. Second operand 12 states. [2020-09-24 20:12:40,138 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:12:40,433 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:12:40,737 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 20:12:41,066 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:12:41,404 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 20:12:41,699 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:12:43,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:12:43,281 INFO L93 Difference]: Finished difference Result 1396 states and 1740 transitions. [2020-09-24 20:12:43,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 20:12:43,282 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 254 [2020-09-24 20:12:43,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:12:43,289 INFO L225 Difference]: With dead ends: 1396 [2020-09-24 20:12:43,289 INFO L226 Difference]: Without dead ends: 867 [2020-09-24 20:12:43,292 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=150, Invalid=356, Unknown=0, NotChecked=0, Total=506 [2020-09-24 20:12:43,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 867 states. [2020-09-24 20:12:43,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 867 to 672. [2020-09-24 20:12:43,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 672 states. [2020-09-24 20:12:43,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 767 transitions. [2020-09-24 20:12:43,387 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 767 transitions. Word has length 254 [2020-09-24 20:12:43,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:12:43,388 INFO L479 AbstractCegarLoop]: Abstraction has 672 states and 767 transitions. [2020-09-24 20:12:43,388 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 20:12:43,388 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 767 transitions. [2020-09-24 20:12:43,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-09-24 20:12:43,392 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:12:43,392 INFO L422 BasicCegarLoop]: trace histogram [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, 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 20:12:43,393 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 20:12:43,393 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:12:43,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:12:43,393 INFO L82 PathProgramCache]: Analyzing trace with hash 554046963, now seen corresponding path program 1 times [2020-09-24 20:12:43,394 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:12:43,394 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [655965451] [2020-09-24 20:12:43,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:12:43,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:43,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:43,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:46,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:47,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:48,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:48,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 279 [2020-09-24 20:12:48,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 20:12:48,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-09-24 20:12:48,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:48,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 20:12:48,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 217 [2020-09-24 20:12:48,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-24 20:12:48,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:48,822 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:12:48,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:12:48,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:48,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:48,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:48,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:12:48,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:48,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-24 20:12:48,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:48,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:12:48,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:48,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:12:48,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:48,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 20:12:48,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:48,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:48,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:48,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:12:48,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:48,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:12:48,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:48,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:12:48,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:48,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:12:48,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:48,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 20:12:48,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:48,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:48,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:48,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:12:48,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:48,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:12:48,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:48,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:12:48,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:48,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:12:48,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:48,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 20:12:48,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:48,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:48,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:48,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:12:48,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:48,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:12:48,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:48,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:12:48,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:48,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:12:48,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:48,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 20:12:48,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:48,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:48,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:48,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:12:48,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:48,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:12:48,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:48,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:12:48,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:48,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:12:48,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:48,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 20:12:48,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:48,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:48,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:48,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:12:48,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:49,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:12:49,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:49,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:12:49,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:49,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:12:49,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:49,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 20:12:49,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:49,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:49,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:49,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:12:49,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:49,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:12:49,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:49,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:12:49,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:49,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:12:49,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:49,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 20:12:49,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:49,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:49,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:49,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:49,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:12:49,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:12:49,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 758 [2020-09-24 20:12:49,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:49,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 20:12:49,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:49,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-24 20:12:49,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:49,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:12:49,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:49,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:49,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:50,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:50,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 20:12:50,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:12:50,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 691 [2020-09-24 20:12:50,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:50,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 20:12:50,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:50,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-24 20:12:50,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:50,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:12:50,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:50,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:50,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:51,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:51,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 20:12:51,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:12:51,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 641 [2020-09-24 20:12:51,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:51,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 20:12:51,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:51,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-24 20:12:51,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:51,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:12:51,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:51,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:51,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:51,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:51,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 20:12:51,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:12:51,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-24 20:12:51,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:51,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:12:51,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 20:12:51,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:12:51,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:51,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 20:12:51,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:51,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:51,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:51,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:12:51,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:51,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 20:12:51,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:51,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:12:51,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:51,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:12:51,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:51,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 20:12:51,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:51,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:51,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:51,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 20:12:51,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:51,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-24 20:12:51,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:51,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 20:12:51,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:51,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 20:12:51,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:51,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 20:12:51,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:51,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:51,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:51,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 20:12:51,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:51,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 20:12:51,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:51,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 20:12:51,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:51,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 20:12:51,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:51,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 20:12:51,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:51,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:51,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:51,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:12:51,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:51,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:12:51,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:51,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:12:51,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:51,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:12:51,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:51,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 20:12:51,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:51,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:51,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:51,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:12:51,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:51,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:12:51,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:51,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:51,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:51,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 20:12:51,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:51,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-09-24 20:12:51,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:51,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:51,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:51,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:12:51,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:51,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:12:51,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:51,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:12:51,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:51,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:12:51,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:51,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2020-09-24 20:12:51,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:51,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:51,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:51,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:12:51,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:51,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:12:51,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:51,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:12:51,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:12:51,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:12:51,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:51,661 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 20:12:51,661 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [655965451] [2020-09-24 20:12:51,661 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:12:51,662 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-09-24 20:12:51,662 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883443758] [2020-09-24 20:12:51,662 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-09-24 20:12:51,663 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:12:51,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-09-24 20:12:51,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=414, Unknown=0, NotChecked=0, Total=462 [2020-09-24 20:12:51,664 INFO L87 Difference]: Start difference. First operand 672 states and 767 transitions. Second operand 22 states.