/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 SequenceOfStatements --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 --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product41.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 17:47:42,685 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 17:47:42,688 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 17:47:42,712 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 17:47:42,712 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 17:47:42,713 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 17:47:42,714 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 17:47:42,716 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 17:47:42,718 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 17:47:42,719 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 17:47:42,720 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 17:47:42,721 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 17:47:42,721 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 17:47:42,722 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 17:47:42,723 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 17:47:42,724 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 17:47:42,725 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 17:47:42,726 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 17:47:42,728 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 17:47:42,730 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 17:47:42,731 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 17:47:42,732 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 17:47:42,734 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 17:47:42,735 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 17:47:42,737 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 17:47:42,737 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 17:47:42,738 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 17:47:42,738 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 17:47:42,739 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 17:47:42,740 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 17:47:42,740 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 17:47:42,741 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 17:47:42,741 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 17:47:42,742 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 17:47:42,743 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 17:47:42,744 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 17:47:42,744 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 17:47:42,744 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 17:47:42,745 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 17:47:42,748 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 17:47:42,749 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 17:47:42,750 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 [2020-10-12 17:47:42,794 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 17:47:42,795 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 17:47:42,796 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 17:47:42,797 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 17:47:42,797 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 17:47:42,797 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 17:47:42,797 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 17:47:42,797 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 17:47:42,798 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 17:47:42,798 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 17:47:42,799 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 17:47:42,799 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 17:47:42,799 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 17:47:42,800 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 17:47:42,800 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 17:47:42,800 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 17:47:42,800 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 17:47:42,800 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 17:47:42,801 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 17:47:42,801 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 17:47:42,801 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 17:47:42,801 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 17:47:42,802 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 17:47:42,802 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 17:47:42,802 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 17:47:42,802 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 17:47:42,802 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 17:47:42,802 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 17:47:42,803 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 17:47:42,803 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 -> SequenceOfStatements 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;unknown-allowed=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;unknown-allowed=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;unknown-allowed=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;unknown-allowed=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;unknown-allowed=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;unknown-allowed=true; [2020-10-12 17:47:43,195 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 17:47:43,209 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 17:47:43,215 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 17:47:43,217 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 17:47:43,218 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 17:47:43,218 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product41.cil.c [2020-10-12 17:47:43,302 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a04125fc7/da756e33ed244337bcdceeef8b8ac6d4/FLAG868fa5611 [2020-10-12 17:47:43,870 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 17:47:43,874 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product41.cil.c [2020-10-12 17:47:43,900 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a04125fc7/da756e33ed244337bcdceeef8b8ac6d4/FLAG868fa5611 [2020-10-12 17:47:44,157 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a04125fc7/da756e33ed244337bcdceeef8b8ac6d4 [2020-10-12 17:47:44,167 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 17:47:44,169 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 17:47:44,170 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 17:47:44,170 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 17:47:44,174 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 17:47:44,175 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 05:47:44" (1/1) ... [2020-10-12 17:47:44,178 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56344ce7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:47:44, skipping insertion in model container [2020-10-12 17:47:44,178 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 05:47:44" (1/1) ... [2020-10-12 17:47:44,186 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 17:47:44,249 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 17:47:44,647 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 17:47:44,660 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 17:47:44,802 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 17:47:44,833 INFO L208 MainTranslator]: Completed translation [2020-10-12 17:47:44,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:47:44 WrapperNode [2020-10-12 17:47:44,834 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 17:47:44,835 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 17:47:44,835 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 17:47:44,835 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 17:47:44,846 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:47:44" (1/1) ... [2020-10-12 17:47:44,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:47:44" (1/1) ... [2020-10-12 17:47:44,865 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:47:44" (1/1) ... [2020-10-12 17:47:44,866 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:47:44" (1/1) ... [2020-10-12 17:47:44,898 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:47:44" (1/1) ... [2020-10-12 17:47:44,911 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:47:44" (1/1) ... [2020-10-12 17:47:44,917 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:47:44" (1/1) ... [2020-10-12 17:47:44,926 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 17:47:44,927 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 17:47:44,927 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 17:47:44,927 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 17:47:44,928 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:47:44" (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 [2020-10-12 17:47:45,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 17:47:45,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 17:47:45,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-12 17:47:45,025 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-12 17:47:45,025 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-12 17:47:45,026 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-12 17:47:45,026 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-12 17:47:45,027 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-12 17:47:45,027 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-12 17:47:45,027 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-12 17:47:45,027 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-12 17:47:45,027 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-12 17:47:45,027 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-12 17:47:45,028 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-12 17:47:45,028 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-12 17:47:45,029 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-12 17:47:45,029 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-12 17:47:45,029 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-12 17:47:45,029 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-12 17:47:45,029 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-12 17:47:45,030 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-10-12 17:47:45,031 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-12 17:47:45,031 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-12 17:47:45,031 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-12 17:47:45,033 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-12 17:47:45,035 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-12 17:47:45,035 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-12 17:47:45,036 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-12 17:47:45,036 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-12 17:47:45,036 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-12 17:47:45,036 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-12 17:47:45,036 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 17:47:45,036 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-12 17:47:45,036 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-12 17:47:45,036 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-12 17:47:45,037 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-12 17:47:45,037 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-12 17:47:45,037 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-10-12 17:47:45,037 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 17:47:45,037 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 17:47:45,037 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-12 17:47:45,037 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-12 17:47:45,037 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-12 17:47:45,038 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-12 17:47:45,038 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-12 17:47:45,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-12 17:47:45,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-12 17:47:45,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-12 17:47:45,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-12 17:47:45,038 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-12 17:47:45,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-12 17:47:45,039 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-12 17:47:45,039 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-12 17:47:45,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-12 17:47:45,039 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-12 17:47:45,039 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-12 17:47:45,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-12 17:47:45,040 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-12 17:47:45,040 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-12 17:47:45,040 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-12 17:47:45,040 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-12 17:47:45,040 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-12 17:47:45,040 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-12 17:47:45,040 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-12 17:47:45,041 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-12 17:47:45,041 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-12 17:47:45,041 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-12 17:47:45,041 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-12 17:47:45,041 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-12 17:47:45,041 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-12 17:47:45,041 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-12 17:47:45,041 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-12 17:47:45,042 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-10-12 17:47:45,042 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-12 17:47:45,042 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-12 17:47:45,042 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-12 17:47:45,042 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-10-12 17:47:45,042 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-12 17:47:45,043 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-12 17:47:45,043 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-12 17:47:45,043 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-12 17:47:45,043 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-12 17:47:45,043 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-12 17:47:45,043 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-12 17:47:45,044 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 17:47:45,044 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-12 17:47:45,044 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-12 17:47:45,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 17:47:45,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-12 17:47:45,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 17:47:46,098 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 17:47:46,099 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-12 17:47:46,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:47:46 BoogieIcfgContainer [2020-10-12 17:47:46,104 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 17:47:46,105 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 17:47:46,106 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 17:47:46,109 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 17:47:46,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 05:47:44" (1/3) ... [2020-10-12 17:47:46,110 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@240605be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 05:47:46, skipping insertion in model container [2020-10-12 17:47:46,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:47:44" (2/3) ... [2020-10-12 17:47:46,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@240605be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 05:47:46, skipping insertion in model container [2020-10-12 17:47:46,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:47:46" (3/3) ... [2020-10-12 17:47:46,113 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product41.cil.c [2020-10-12 17:47:46,123 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 17:47:46,131 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 17:47:46,146 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 17:47:46,171 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 17:47:46,172 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 17:47:46,172 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 17:47:46,172 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 17:47:46,172 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 17:47:46,172 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 17:47:46,172 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 17:47:46,172 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 17:47:46,195 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states. [2020-10-12 17:47:46,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-12 17:47:46,205 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 17:47:46,206 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] [2020-10-12 17:47:46,207 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 17:47:46,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 17:47:46,213 INFO L82 PathProgramCache]: Analyzing trace with hash -1904787813, now seen corresponding path program 1 times [2020-10-12 17:47:46,219 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 17:47:46,220 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [872757552] [2020-10-12 17:47:46,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 17:47:46,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:47:46,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:47:46,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:47:46,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:47:47,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:47:48,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:47:51,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:47:51,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-12 17:47:51,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 17:47:51,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4665 [2020-10-12 17:47:51,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:47:51,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-12 17:47:51,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:47:51,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-12 17:47:51,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 17:47:51,601 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 17:47:51,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 17:47:51,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:47:51,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:47:51,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:47:51,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:47:51,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:47:51,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-12 17:47:51,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:47:51,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:47:51,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:47:51,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 17:47:51,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:47:51,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 17:47:51,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:47:51,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:47:51,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:47:51,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:47:51,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:47:51,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 17:47:51,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:47:51,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:47:51,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:47:51,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:47:51,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:47:51,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 17:47:51,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:47:51,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:47:51,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:47:51,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:47:51,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:47:51,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 17:47:51,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:47:51,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:47:51,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:47:51,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:47:51,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:47:51,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 17:47:51,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:47:51,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:47:51,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:47:51,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:47:51,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:47:51,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 17:47:51,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:47:51,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:47:51,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:47:51,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:47:51,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:47:51,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 17:47:51,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:47:51,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:47:51,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:47:51,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:47:51,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:47:51,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 17:47:51,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:47:51,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:47:51,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:47:51,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:47:51,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:47:51,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-12 17:47:51,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:47:51,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:47:51,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:47:51,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:47:51,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:47:51,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 17:47:51,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:47:51,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:47:51,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:47:51,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:47:51,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:47:51,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-12 17:47:51,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:47:51,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:47:51,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:47:51,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:47:51,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:47:51,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 17:47:51,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:47:51,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 17:47:51,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:47:51,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:47:51,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:47:51,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 17:47:51,858 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [872757552] [2020-10-12 17:47:51,860 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 17:47:51,861 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 17:47:51,862 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837975946] [2020-10-12 17:47:51,868 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 17:47:51,868 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 17:47:51,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 17:47:51,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-12 17:47:51,886 INFO L87 Difference]: Start difference. First operand 160 states. Second operand 7 states. [2020-10-12 17:47:52,427 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 17:47:53,515 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-12 17:47:53,807 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 17:47:54,055 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-12 17:47:54,741 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 17:47:55,086 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 17:47:55,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 17:47:55,922 INFO L93 Difference]: Finished difference Result 357 states and 493 transitions. [2020-10-12 17:47:55,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 17:47:55,930 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 46 [2020-10-12 17:47:55,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 17:47:55,946 INFO L225 Difference]: With dead ends: 357 [2020-10-12 17:47:55,946 INFO L226 Difference]: Without dead ends: 218 [2020-10-12 17:47:55,952 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-10-12 17:47:55,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-10-12 17:47:56,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 185. [2020-10-12 17:47:56,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2020-10-12 17:47:56,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 233 transitions. [2020-10-12 17:47:56,074 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 233 transitions. Word has length 46 [2020-10-12 17:47:56,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 17:47:56,074 INFO L479 AbstractCegarLoop]: Abstraction has 185 states and 233 transitions. [2020-10-12 17:47:56,074 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 17:47:56,075 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 233 transitions. [2020-10-12 17:47:56,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-12 17:47:56,088 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 17:47:56,089 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-10-12 17:47:56,089 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 17:47:56,089 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 17:47:56,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 17:47:56,090 INFO L82 PathProgramCache]: Analyzing trace with hash -526740381, now seen corresponding path program 1 times [2020-10-12 17:47:56,090 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 17:47:56,090 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [173440887] [2020-10-12 17:47:56,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 17:47:56,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:47:56,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:47:56,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:47:56,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:47:56,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:47:57,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:47:57,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:47:57,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:01,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:01,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-12 17:48:01,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 17:48:01,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-12 17:48:01,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:01,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 17:48:01,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:48:01,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-12 17:48:01,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:01,468 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 17:48:01,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 17:48:01,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:01,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:01,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:01,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:01,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:01,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-12 17:48:01,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:01,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:01,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:01,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 17:48:01,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:01,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 17:48:01,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:01,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:01,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:01,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:48:01,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:01,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:01,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:01,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:01,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:01,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:48:01,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:01,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 17:48:01,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:01,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:01,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:01,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:48:01,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:01,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:01,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:01,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:01,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:01,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:48:01,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:01,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 17:48:01,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:01,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:01,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:01,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:01,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:01,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:01,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:01,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:01,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:01,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:48:01,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:01,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 17:48:01,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:01,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:01,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:01,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:48:01,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:01,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:01,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:01,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:01,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:01,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:48:01,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:01,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-12 17:48:01,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:01,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:01,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:01,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:01,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-12 17:48:01,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 17:48:01,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 17:48:01,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:01,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 17:48:01,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:01,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 17:48:01,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:48:01,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 17:48:01,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:01,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:01,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:01,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 17:48:01,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:01,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 17:48:01,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:01,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 17:48:01,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:01,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 17:48:01,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:48:01,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 17:48:01,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:01,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:01,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:01,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:01,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:01,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 17:48:01,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:01,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 17:48:01,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:01,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:48:01,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:01,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-12 17:48:01,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:01,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:01,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:02,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:02,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:02,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-12 17:48:02,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 17:48:02,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 286 [2020-10-12 17:48:02,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:02,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 17:48:02,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:02,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-12 17:48:02,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:48:02,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 17:48:02,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:02,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:02,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:02,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 17:48:02,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:02,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 17:48:02,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:02,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:02,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:02,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:02,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:02,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 17:48:02,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:02,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:02,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:02,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 17:48:02,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:02,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:02,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:02,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:02,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:02,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:02,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:48:02,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 17:48:02,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:02,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:02,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:02,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-12 17:48:02,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:02,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-12 17:48:02,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:02,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 17:48:02,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:02,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-12 17:48:02,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:48:02,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 17:48:02,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:02,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:02,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:02,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 17:48:02,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:02,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 17:48:02,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:02,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 17:48:02,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:02,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 17:48:02,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:02,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 17:48:02,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:02,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:02,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:02,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:02,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:02,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 17:48:02,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:02,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 17:48:02,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:02,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:48:02,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:02,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 17:48:02,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:02,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:02,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:02,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:02,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:02,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 17:48:02,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:02,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:02,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:02,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:48:02,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:02,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-12 17:48:02,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:02,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:02,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:02,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:02,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:02,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 17:48:02,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:02,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 17:48:02,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:02,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:48:02,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:02,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-12 17:48:02,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:02,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:02,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:02,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:02,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:02,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:02,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:02,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:02,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:48:02,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:02,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:02,473 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-12 17:48:02,474 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [173440887] [2020-10-12 17:48:02,474 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 17:48:02,474 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-12 17:48:02,475 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243931799] [2020-10-12 17:48:02,478 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-12 17:48:02,479 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 17:48:02,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-12 17:48:02,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2020-10-12 17:48:02,480 INFO L87 Difference]: Start difference. First operand 185 states and 233 transitions. Second operand 15 states. [2020-10-12 17:48:02,953 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 17:48:03,750 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-12 17:48:04,040 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 17:48:04,272 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-12 17:48:04,668 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 17:48:05,006 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-10-12 17:48:05,289 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-10-12 17:48:06,942 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-10-12 17:48:07,185 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-10-12 17:48:07,438 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-10-12 17:48:07,688 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-10-12 17:48:08,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 17:48:08,258 INFO L93 Difference]: Finished difference Result 595 states and 904 transitions. [2020-10-12 17:48:08,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-12 17:48:08,258 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 104 [2020-10-12 17:48:08,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 17:48:08,265 INFO L225 Difference]: With dead ends: 595 [2020-10-12 17:48:08,266 INFO L226 Difference]: Without dead ends: 373 [2020-10-12 17:48:08,271 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 37 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=187, Invalid=569, Unknown=0, NotChecked=0, Total=756 [2020-10-12 17:48:08,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2020-10-12 17:48:08,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 293. [2020-10-12 17:48:08,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 293 states. [2020-10-12 17:48:08,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 371 transitions. [2020-10-12 17:48:08,355 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 371 transitions. Word has length 104 [2020-10-12 17:48:08,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 17:48:08,356 INFO L479 AbstractCegarLoop]: Abstraction has 293 states and 371 transitions. [2020-10-12 17:48:08,356 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-12 17:48:08,356 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 371 transitions. [2020-10-12 17:48:08,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-10-12 17:48:08,363 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 17:48:08,363 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 17:48:08,363 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 17:48:08,363 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 17:48:08,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 17:48:08,364 INFO L82 PathProgramCache]: Analyzing trace with hash -1523302145, now seen corresponding path program 1 times [2020-10-12 17:48:08,364 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 17:48:08,364 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1597984325] [2020-10-12 17:48:08,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 17:48:08,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:08,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:08,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:08,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:08,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:12,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:12,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:12,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:13,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:13,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 17:48:13,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 17:48:13,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-12 17:48:13,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:13,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 17:48:13,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:48:13,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-10-12 17:48:13,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:48:13,759 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 17:48:13,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 17:48:13,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:13,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:13,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:13,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:13,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:13,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-12 17:48:13,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:13,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:13,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:13,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 17:48:13,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:13,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 17:48:13,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:13,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:13,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:13,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:48:13,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:13,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 17:48:13,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:13,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:13,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:13,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:48:13,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:13,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 17:48:13,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:13,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:13,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:13,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:48:13,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:13,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:13,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:13,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:13,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:13,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:48:13,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:13,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 17:48:13,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:13,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:13,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:13,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:13,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:13,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:13,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:13,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:13,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:13,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:48:13,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:13,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 17:48:13,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:13,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:13,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:13,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:48:13,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:13,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:13,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:13,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:13,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:13,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:48:13,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:13,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-12 17:48:13,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:13,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:13,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:13,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:13,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:13,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:13,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:13,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:13,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:13,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:48:13,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 17:48:13,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-12 17:48:13,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:13,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:13,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:14,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:14,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 17:48:14,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 17:48:14,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-12 17:48:14,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:14,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 17:48:14,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-12 17:48:14,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 17:48:14,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:14,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 17:48:14,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:14,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:14,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:14,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-12 17:48:14,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:14,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 17:48:14,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:14,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 17:48:14,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-12 17:48:14,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 17:48:14,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:14,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 17:48:14,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:14,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:14,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:14,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 17:48:14,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:14,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 17:48:14,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:14,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 17:48:14,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:14,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 17:48:14,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:48:14,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 17:48:14,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:14,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:14,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:14,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 17:48:14,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:14,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 17:48:14,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:14,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:14,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:14,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:14,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:14,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 17:48:14,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:14,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:14,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:14,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-12 17:48:14,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:14,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 17:48:14,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:14,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:14,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-12 17:48:14,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:14,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:14,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 17:48:14,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:14,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:14,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:14,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 17:48:14,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:14,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 17:48:14,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:14,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:14,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:14,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:14,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:14,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 17:48:14,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:14,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:14,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:14,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:14,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:14,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 17:48:14,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:14,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:14,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:14,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:14,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:14,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 17:48:14,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:14,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:14,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:14,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:14,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:14,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 17:48:14,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:14,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:14,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:14,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:14,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:14,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-12 17:48:14,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:14,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:14,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:14,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 17:48:14,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:14,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 17:48:14,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:14,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:14,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 17:48:14,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:14,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:14,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 17:48:14,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:14,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:14,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:14,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:14,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:14,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 17:48:14,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:14,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:14,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:14,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:14,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:14,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-12 17:48:14,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:14,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:14,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:14,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:14,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:14,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 17:48:14,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:14,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:14,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:14,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:48:14,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:14,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-12 17:48:14,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:14,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:14,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:14,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:14,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:14,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 17:48:14,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:14,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 17:48:14,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 17:48:14,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 17:48:14,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:14,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-12 17:48:14,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:14,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:14,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:14,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:14,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:14,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:14,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:14,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:14,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:48:14,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:14,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:48:14,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-12 17:48:14,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:14,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:14,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:14,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:14,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:14,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 17:48:14,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:14,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:14,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:48:14,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:14,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:14,257 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-10-12 17:48:14,258 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1597984325] [2020-10-12 17:48:14,258 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 17:48:14,258 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 17:48:14,259 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846504333] [2020-10-12 17:48:14,260 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 17:48:14,260 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 17:48:14,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 17:48:14,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-10-12 17:48:14,261 INFO L87 Difference]: Start difference. First operand 293 states and 371 transitions. Second operand 13 states. [2020-10-12 17:48:15,002 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 17:48:15,947 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 17:48:16,194 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-12 17:48:16,477 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-12 17:48:16,796 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-12 17:48:17,038 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 17:48:17,279 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 17:48:17,565 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-12 17:48:17,807 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-12 17:48:18,051 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-10-12 17:48:18,357 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 17:48:18,599 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 17:48:18,857 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 17:48:19,098 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 17:48:21,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 17:48:21,500 INFO L93 Difference]: Finished difference Result 1100 states and 1580 transitions. [2020-10-12 17:48:21,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-12 17:48:21,501 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 124 [2020-10-12 17:48:21,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 17:48:21,511 INFO L225 Difference]: With dead ends: 1100 [2020-10-12 17:48:21,511 INFO L226 Difference]: Without dead ends: 817 [2020-10-12 17:48:21,514 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=277, Invalid=913, Unknown=0, NotChecked=0, Total=1190 [2020-10-12 17:48:21,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 817 states. [2020-10-12 17:48:21,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 817 to 666. [2020-10-12 17:48:21,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 666 states. [2020-10-12 17:48:21,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666 states to 666 states and 831 transitions. [2020-10-12 17:48:21,663 INFO L78 Accepts]: Start accepts. Automaton has 666 states and 831 transitions. Word has length 124 [2020-10-12 17:48:21,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 17:48:21,664 INFO L479 AbstractCegarLoop]: Abstraction has 666 states and 831 transitions. [2020-10-12 17:48:21,664 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 17:48:21,664 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states and 831 transitions. [2020-10-12 17:48:21,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-12 17:48:21,670 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 17:48:21,670 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 17:48:21,670 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 17:48:21,670 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 17:48:21,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 17:48:21,671 INFO L82 PathProgramCache]: Analyzing trace with hash -762693117, now seen corresponding path program 1 times [2020-10-12 17:48:21,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 17:48:21,671 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [188813711] [2020-10-12 17:48:21,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 17:48:21,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:21,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:21,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:21,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:22,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:22,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-12 17:48:22,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 17:48:22,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 669 [2020-10-12 17:48:22,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:22,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 17:48:22,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-12 17:48:22,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:48:22,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:22,624 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 17:48:22,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 17:48:22,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:22,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:22,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:22,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:22,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:22,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 17:48:22,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:22,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:22,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:22,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:22,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:22,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 17:48:22,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:22,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:22,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:22,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:48:22,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:22,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 17:48:22,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:22,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:22,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:22,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:22,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:22,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 17:48:22,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:22,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:22,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:22,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:48:22,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:22,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 17:48:22,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:22,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:22,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:22,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:22,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:22,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 17:48:22,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:22,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:22,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:22,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:22,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:22,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 17:48:22,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:22,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:22,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:22,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:22,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:22,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 17:48:22,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:22,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:22,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:22,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:48:22,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:22,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 17:48:22,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:22,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:22,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:22,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:22,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:22,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-12 17:48:22,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:22,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:22,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:22,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 17:48:22,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:22,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 17:48:22,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:22,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 17:48:22,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-12 17:48:22,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:48:22,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:22,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 17:48:22,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:22,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:22,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:22,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-12 17:48:22,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:22,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 17:48:22,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:22,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 17:48:22,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-12 17:48:22,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:48:22,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:22,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 17:48:22,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:22,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:22,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:22,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 17:48:22,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:22,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 17:48:22,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:22,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 17:48:22,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 17:48:22,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:48:22,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:22,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 17:48:22,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:22,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:22,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:22,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 17:48:22,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:22,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 17:48:22,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:22,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 17:48:22,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:22,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:48:22,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:22,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 17:48:22,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:22,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:22,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:22,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-12 17:48:22,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:22,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 17:48:22,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:22,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:22,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-12 17:48:22,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:22,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:22,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 17:48:22,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:22,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:22,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:22,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 17:48:22,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:22,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:22,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:22,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:22,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:22,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:22,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:22,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 17:48:22,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:22,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:22,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:22,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:22,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:22,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 17:48:22,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:22,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:22,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:22,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:22,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:22,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 17:48:22,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:22,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:22,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:22,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:22,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:22,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 17:48:22,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:22,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:22,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:22,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:22,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:22,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-12 17:48:22,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:22,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:22,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:22,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 17:48:22,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:22,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 17:48:22,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:22,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:22,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 17:48:22,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:22,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:22,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 17:48:22,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:22,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:22,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:22,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:22,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:22,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:22,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:22,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:22,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:22,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:22,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:22,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-12 17:48:22,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:22,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:22,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:22,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:22,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:22,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:22,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:22,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:22,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:48:22,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:22,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:22,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-12 17:48:22,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:22,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:22,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:22,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:22,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:22,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:22,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:22,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:22,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:48:22,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:22,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:22,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-12 17:48:22,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:22,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:22,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:22,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:22,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:22,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 17:48:22,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:22,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:22,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:48:22,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:22,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:22,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-12 17:48:22,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:22,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:22,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:22,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:22,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:22,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:22,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:22,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:22,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:48:22,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:22,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:22,911 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-12 17:48:22,912 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [188813711] [2020-10-12 17:48:22,912 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 17:48:22,912 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 17:48:22,912 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153276965] [2020-10-12 17:48:22,913 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 17:48:22,913 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 17:48:22,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 17:48:22,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-12 17:48:22,914 INFO L87 Difference]: Start difference. First operand 666 states and 831 transitions. Second operand 10 states. [2020-10-12 17:48:23,728 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 17:48:23,981 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 17:48:24,258 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 17:48:25,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 17:48:25,132 INFO L93 Difference]: Finished difference Result 1276 states and 1683 transitions. [2020-10-12 17:48:25,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 17:48:25,133 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 120 [2020-10-12 17:48:25,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 17:48:25,140 INFO L225 Difference]: With dead ends: 1276 [2020-10-12 17:48:25,140 INFO L226 Difference]: Without dead ends: 634 [2020-10-12 17:48:25,143 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2020-10-12 17:48:25,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2020-10-12 17:48:25,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 553. [2020-10-12 17:48:25,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 553 states. [2020-10-12 17:48:25,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 671 transitions. [2020-10-12 17:48:25,293 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 671 transitions. Word has length 120 [2020-10-12 17:48:25,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 17:48:25,296 INFO L479 AbstractCegarLoop]: Abstraction has 553 states and 671 transitions. [2020-10-12 17:48:25,296 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 17:48:25,296 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 671 transitions. [2020-10-12 17:48:25,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-10-12 17:48:25,302 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 17:48:25,302 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 17:48:25,303 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 17:48:25,303 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 17:48:25,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 17:48:25,303 INFO L82 PathProgramCache]: Analyzing trace with hash 1231610234, now seen corresponding path program 1 times [2020-10-12 17:48:25,304 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 17:48:25,304 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [567663918] [2020-10-12 17:48:25,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 17:48:25,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:25,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:25,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:25,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:25,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:27,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:27,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 17:48:27,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 17:48:27,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2328 [2020-10-12 17:48:27,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:27,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-12 17:48:27,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:48:27,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-10-12 17:48:27,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:27,959 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 17:48:27,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 17:48:27,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:28,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:28,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:28,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:28,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:28,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-12 17:48:28,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:28,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:28,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:28,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 17:48:28,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:28,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 17:48:28,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:28,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:28,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:28,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:48:28,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:28,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:28,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:28,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:28,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:28,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:48:28,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:28,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 17:48:28,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:28,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:28,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:28,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:48:28,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:28,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:28,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:28,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:28,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:28,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:48:28,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:28,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 17:48:28,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:28,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:28,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:28,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:28,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:28,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:28,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:28,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:28,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:28,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:48:28,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:28,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 17:48:28,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:28,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:28,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:28,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:48:28,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:28,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:28,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:28,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:28,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:28,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:48:28,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:28,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-12 17:48:28,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:28,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:28,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:28,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:28,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:28,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 17:48:28,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:28,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 17:48:28,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 17:48:28,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 17:48:28,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:28,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-12 17:48:28,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:28,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:28,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:28,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:28,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 17:48:28,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 17:48:28,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-12 17:48:28,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:28,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 17:48:28,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 17:48:28,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-12 17:48:28,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:28,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 17:48:28,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:28,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:28,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:28,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-12 17:48:28,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:28,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 17:48:28,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:28,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:28,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:28,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-12 17:48:28,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:28,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 17:48:28,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:28,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:28,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:28,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 17:48:28,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:28,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 17:48:28,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:28,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:28,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:28,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:28,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:28,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 17:48:28,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:28,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:28,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:28,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 17:48:28,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:28,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 17:48:28,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:28,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:28,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:28,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:28,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:28,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 17:48:28,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:28,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:28,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:28,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-12 17:48:28,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:28,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 17:48:28,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:28,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:28,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:28,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:28,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:28,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 17:48:28,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:28,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:28,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:28,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 17:48:28,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:28,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:28,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:28,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:28,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:28,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:28,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:28,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 17:48:28,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:28,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:28,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:28,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:28,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:28,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 17:48:28,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:28,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:28,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:28,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:28,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:28,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 17:48:28,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:28,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:28,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:28,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:28,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:28,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 17:48:28,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:28,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:28,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:28,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:28,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:28,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-12 17:48:28,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:28,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:28,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:28,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 17:48:28,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:28,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 17:48:28,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:28,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:28,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:28,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 17:48:28,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:28,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 17:48:28,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:28,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:28,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:28,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:28,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:28,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 17:48:28,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:28,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:28,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:28,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:28,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:28,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-12 17:48:28,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:28,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:28,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:28,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:28,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:28,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:28,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:28,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:28,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:28,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:48:28,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:28,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-12 17:48:28,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:28,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:28,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:28,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:28,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:28,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 17:48:28,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:28,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 17:48:28,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 17:48:28,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 17:48:28,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:28,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-12 17:48:28,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:28,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:28,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:28,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:28,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:28,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 17:48:28,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:28,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:28,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:48:28,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:28,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:28,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-12 17:48:28,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:28,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:28,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:28,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:28,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:28,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 17:48:28,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:28,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:28,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:48:28,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:28,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:28,330 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-12 17:48:28,330 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [567663918] [2020-10-12 17:48:28,331 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 17:48:28,331 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-12 17:48:28,332 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835701110] [2020-10-12 17:48:28,333 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 17:48:28,333 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 17:48:28,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 17:48:28,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-10-12 17:48:28,334 INFO L87 Difference]: Start difference. First operand 553 states and 671 transitions. Second operand 12 states. [2020-10-12 17:48:28,872 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 17:48:29,423 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 17:48:31,429 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 17:48:32,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 17:48:32,475 INFO L93 Difference]: Finished difference Result 1323 states and 1821 transitions. [2020-10-12 17:48:32,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-12 17:48:32,476 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 124 [2020-10-12 17:48:32,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 17:48:32,484 INFO L225 Difference]: With dead ends: 1323 [2020-10-12 17:48:32,484 INFO L226 Difference]: Without dead ends: 904 [2020-10-12 17:48:32,488 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=144, Invalid=506, Unknown=0, NotChecked=0, Total=650 [2020-10-12 17:48:32,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 904 states. [2020-10-12 17:48:32,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 904 to 741. [2020-10-12 17:48:32,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 741 states. [2020-10-12 17:48:32,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 741 states to 741 states and 914 transitions. [2020-10-12 17:48:32,637 INFO L78 Accepts]: Start accepts. Automaton has 741 states and 914 transitions. Word has length 124 [2020-10-12 17:48:32,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 17:48:32,638 INFO L479 AbstractCegarLoop]: Abstraction has 741 states and 914 transitions. [2020-10-12 17:48:32,638 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 17:48:32,638 INFO L276 IsEmpty]: Start isEmpty. Operand 741 states and 914 transitions. [2020-10-12 17:48:32,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-10-12 17:48:32,641 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 17:48:32,642 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 17:48:32,642 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 17:48:32,642 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 17:48:32,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 17:48:32,642 INFO L82 PathProgramCache]: Analyzing trace with hash 2049258684, now seen corresponding path program 1 times [2020-10-12 17:48:32,643 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 17:48:32,645 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [697212142] [2020-10-12 17:48:32,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 17:48:32,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:32,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:32,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:32,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:32,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 17:48:32,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 17:48:32,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 280 [2020-10-12 17:48:32,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:32,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:32,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:48:32,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-12 17:48:32,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:33,220 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 17:48:33,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 17:48:33,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:33,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:33,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:33,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:33,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:33,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-12 17:48:33,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:33,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:33,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:33,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 17:48:33,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:33,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 17:48:33,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:33,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:33,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:33,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:48:33,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:33,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:33,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:33,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:33,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:33,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:48:33,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:33,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 17:48:33,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:33,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:33,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:33,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:48:33,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:33,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:33,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:33,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:33,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:33,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:48:33,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:33,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 17:48:33,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:33,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:33,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:33,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:33,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:33,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 17:48:33,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:33,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:33,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:33,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:48:33,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:33,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 17:48:33,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:33,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:33,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:33,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:48:33,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:33,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:33,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:33,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:33,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:33,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:48:33,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:33,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-12 17:48:33,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:33,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:33,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:33,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:33,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:33,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:33,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:33,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:33,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:33,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:48:33,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:33,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-12 17:48:33,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:33,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:33,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:33,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 17:48:33,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:33,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 17:48:33,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:33,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:33,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:33,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-12 17:48:33,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:33,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 17:48:33,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:33,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:33,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:33,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-12 17:48:33,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:33,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 17:48:33,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:33,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:33,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:33,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:33,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:48:33,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 17:48:33,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:33,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:33,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:33,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 17:48:33,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:33,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 17:48:33,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:33,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:33,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:33,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:33,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:33,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 17:48:33,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:33,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:33,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:33,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 17:48:33,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:33,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:33,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:33,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:33,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:33,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:33,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:48:33,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 17:48:33,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:33,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:33,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:33,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-12 17:48:33,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:33,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 17:48:33,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:33,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:33,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:33,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:33,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:33,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 17:48:33,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:33,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:33,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:33,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 17:48:33,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:33,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:33,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:33,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:33,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:33,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:33,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:33,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 17:48:33,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:33,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:33,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:33,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:33,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:33,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 17:48:33,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:33,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:33,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:33,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:33,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:33,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 17:48:33,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:33,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:33,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:33,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:33,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:33,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 17:48:33,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:33,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:33,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:33,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:33,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:33,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-12 17:48:33,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:33,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:33,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:33,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 17:48:33,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:33,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:33,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:33,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:33,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:33,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:33,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:33,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 17:48:33,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:33,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:33,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:33,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:33,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:33,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 17:48:33,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:33,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:33,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:33,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:33,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:33,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-12 17:48:33,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:33,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:33,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:33,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:33,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:33,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:33,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:33,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:33,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:33,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:48:33,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:33,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-12 17:48:33,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:33,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:33,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:33,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:33,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:33,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:33,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:33,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:33,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:33,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:48:33,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:33,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-12 17:48:33,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:33,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:33,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:33,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:33,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:33,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 17:48:33,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:33,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:33,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:48:33,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:33,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:33,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-12 17:48:33,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:33,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:33,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:33,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:33,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:33,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 17:48:33,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:33,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:33,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:48:33,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:33,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:33,546 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-12 17:48:33,551 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [697212142] [2020-10-12 17:48:33,551 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 17:48:33,551 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-12 17:48:33,552 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710277312] [2020-10-12 17:48:33,552 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 17:48:33,552 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 17:48:33,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 17:48:33,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-12 17:48:33,553 INFO L87 Difference]: Start difference. First operand 741 states and 914 transitions. Second operand 9 states. [2020-10-12 17:48:33,912 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 17:48:34,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 17:48:34,999 INFO L93 Difference]: Finished difference Result 1552 states and 2015 transitions. [2020-10-12 17:48:34,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 17:48:34,999 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 124 [2020-10-12 17:48:35,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 17:48:35,006 INFO L225 Difference]: With dead ends: 1552 [2020-10-12 17:48:35,006 INFO L226 Difference]: Without dead ends: 835 [2020-10-12 17:48:35,009 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2020-10-12 17:48:35,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2020-10-12 17:48:35,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 739. [2020-10-12 17:48:35,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 739 states. [2020-10-12 17:48:35,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 899 transitions. [2020-10-12 17:48:35,135 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 899 transitions. Word has length 124 [2020-10-12 17:48:35,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 17:48:35,136 INFO L479 AbstractCegarLoop]: Abstraction has 739 states and 899 transitions. [2020-10-12 17:48:35,136 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 17:48:35,136 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 899 transitions. [2020-10-12 17:48:35,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-12 17:48:35,140 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 17:48:35,140 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 17:48:35,140 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 17:48:35,140 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 17:48:35,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 17:48:35,141 INFO L82 PathProgramCache]: Analyzing trace with hash 773081915, now seen corresponding path program 1 times [2020-10-12 17:48:35,141 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 17:48:35,141 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [918282758] [2020-10-12 17:48:35,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 17:48:35,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-12 17:48:35,182 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-12 17:48:35,182 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-12 17:48:35,188 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 17:48:35,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 05:48:35 BoogieIcfgContainer [2020-10-12 17:48:35,239 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-12 17:48:35,244 INFO L168 Benchmark]: Toolchain (without parser) took 51072.71 ms. Allocated memory was 137.9 MB in the beginning and 821.6 MB in the end (delta: 683.7 MB). Free memory was 100.0 MB in the beginning and 287.1 MB in the end (delta: -187.1 MB). Peak memory consumption was 496.6 MB. Max. memory is 7.1 GB. [2020-10-12 17:48:35,244 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-12 17:48:35,245 INFO L168 Benchmark]: CACSL2BoogieTranslator took 664.51 ms. Allocated memory was 137.9 MB in the beginning and 199.2 MB in the end (delta: 61.3 MB). Free memory was 99.8 MB in the beginning and 166.0 MB in the end (delta: -66.2 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. [2020-10-12 17:48:35,255 INFO L168 Benchmark]: Boogie Preprocessor took 91.40 ms. Allocated memory is still 199.2 MB. Free memory was 166.0 MB in the beginning and 161.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-10-12 17:48:35,257 INFO L168 Benchmark]: RCFGBuilder took 1177.63 ms. Allocated memory was 199.2 MB in the beginning and 229.6 MB in the end (delta: 30.4 MB). Free memory was 161.8 MB in the beginning and 193.3 MB in the end (delta: -31.5 MB). Peak memory consumption was 85.1 MB. Max. memory is 7.1 GB. [2020-10-12 17:48:35,258 INFO L168 Benchmark]: TraceAbstraction took 49133.78 ms. Allocated memory was 229.6 MB in the beginning and 821.6 MB in the end (delta: 591.9 MB). Free memory was 191.9 MB in the beginning and 287.1 MB in the end (delta: -95.2 MB). Peak memory consumption was 496.7 MB. Max. memory is 7.1 GB. [2020-10-12 17:48:35,266 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 664.51 ms. Allocated memory was 137.9 MB in the beginning and 199.2 MB in the end (delta: 61.3 MB). Free memory was 99.8 MB in the beginning and 166.0 MB in the end (delta: -66.2 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 91.40 ms. Allocated memory is still 199.2 MB. Free memory was 166.0 MB in the beginning and 161.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1177.63 ms. Allocated memory was 199.2 MB in the beginning and 229.6 MB in the end (delta: 30.4 MB). Free memory was 161.8 MB in the beginning and 193.3 MB in the end (delta: -31.5 MB). Peak memory consumption was 85.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 49133.78 ms. Allocated memory was 229.6 MB in the beginning and 821.6 MB in the end (delta: 591.9 MB). Free memory was 191.9 MB in the beginning and 287.1 MB in the end (delta: -95.2 MB). Peak memory consumption was 496.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 887]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L480] int waterLevel = 1; [L481] int methaneLevelCritical = 0; [L578] int pumpRunning = 0; [L579] int systemActive = 1; [L749] int cleanupTimeShifts = 4; [L825] int retValue_acc ; [L826] int tmp ; [L830] FCALL select_helpers() [L831] FCALL select_features() [L832] CALL, EXPR valid_product() [L874] int retValue_acc ; [L877] retValue_acc = 1 [L878] return (retValue_acc); [L832] RET, EXPR valid_product() [L832] tmp = valid_product() [L834] COND TRUE \read(tmp) [L836] FCALL setup() [L837] CALL runTest() [L816] CALL test() [L411] int splverifierCounter ; [L412] int tmp ; [L413] int tmp___0 ; [L414] int tmp___1 ; [L415] int tmp___2 ; [L418] splverifierCounter = 0 [L420] COND TRUE 1 [L422] COND TRUE splverifierCounter < 4 [L428] tmp = __VERIFIER_nondet_int() [L430] COND TRUE \read(tmp) [L432] CALL waterRise() [L498] COND TRUE waterLevel < 2 [L499] waterLevel = waterLevel + 1 [L432] RET waterRise() [L438] tmp___0 = __VERIFIER_nondet_int() [L440] COND FALSE !(\read(tmp___0)) [L448] tmp___2 = __VERIFIER_nondet_int() [L450] COND TRUE \read(tmp___2) [L463] CALL timeShift() [L586] COND FALSE !(\read(pumpRunning)) [L593] COND TRUE \read(systemActive) [L595] CALL processEnvironment() [L615] int tmp ; [L618] COND TRUE ! pumpRunning [L620] CALL, EXPR isHighWaterLevel() [L730] int retValue_acc ; [L731] int tmp ; [L732] int tmp___0 ; [L736] CALL, EXPR isHighWaterSensorDry() [L560] int retValue_acc ; [L563] COND FALSE !(waterLevel < 2) [L567] retValue_acc = 0 [L568] return (retValue_acc); [L736] RET, EXPR isHighWaterSensorDry() [L736] tmp = isHighWaterSensorDry() [L738] COND FALSE !(\read(tmp)) [L741] tmp___0 = 1 [L743] retValue_acc = tmp___0 [L744] return (retValue_acc); [L620] RET, EXPR isHighWaterLevel() [L620] tmp = isHighWaterLevel() [L622] COND TRUE \read(tmp) [L624] CALL activatePump() [L649] int tmp ; [L653] CALL, EXPR isMethaneAlarm() [L674] int retValue_acc ; [L678] CALL, EXPR isMethaneLevelCritical() [L519] int retValue_acc ; [L522] retValue_acc = methaneLevelCritical [L523] return (retValue_acc); [L678] RET, EXPR isMethaneLevelCritical() [L678] retValue_acc = isMethaneLevelCritical() [L680] return (retValue_acc); [L653] RET, EXPR isMethaneAlarm() [L653] tmp = isMethaneAlarm() [L655] COND FALSE !(\read(tmp)) [L659] CALL activatePump__wrappee__highWaterSensor() [L643] pumpRunning = 1 [L659] RET activatePump__wrappee__highWaterSensor() [L624] RET activatePump() [L595] RET processEnvironment() [L601] CALL __utac_acc__Specification1_spec__1() [L893] int tmp ; [L894] int tmp___0 ; [L898] CALL, EXPR isMethaneLevelCritical() [L519] int retValue_acc ; [L522] retValue_acc = methaneLevelCritical [L523] return (retValue_acc); [L898] RET, EXPR isMethaneLevelCritical() [L898] tmp = isMethaneLevelCritical() [L900] COND FALSE !(\read(tmp)) [L601] RET __utac_acc__Specification1_spec__1() [L463] RET timeShift() [L420] COND TRUE 1 [L422] COND TRUE splverifierCounter < 4 [L428] tmp = __VERIFIER_nondet_int() [L430] COND FALSE !(\read(tmp)) [L438] tmp___0 = __VERIFIER_nondet_int() [L440] COND TRUE \read(tmp___0) [L442] CALL changeMethaneLevel() [L510] COND FALSE !(\read(methaneLevelCritical)) [L513] methaneLevelCritical = 1 [L442] RET changeMethaneLevel() [L448] tmp___2 = __VERIFIER_nondet_int() [L450] COND TRUE \read(tmp___2) [L463] CALL timeShift() [L586] COND TRUE \read(pumpRunning) [L588] CALL lowerWaterLevel() [L486] COND TRUE waterLevel > 0 [L487] waterLevel = waterLevel - 1 [L588] RET lowerWaterLevel() [L593] COND TRUE \read(systemActive) [L595] CALL processEnvironment() [L615] int tmp ; [L618] COND FALSE !(! pumpRunning) [L633] FCALL processEnvironment__wrappee__base() [L595] RET processEnvironment() [L601] CALL __utac_acc__Specification1_spec__1() [L893] int tmp ; [L894] int tmp___0 ; [L898] CALL, EXPR isMethaneLevelCritical() [L519] int retValue_acc ; [L522] retValue_acc = methaneLevelCritical [L523] return (retValue_acc); [L898] RET, EXPR isMethaneLevelCritical() [L898] tmp = isMethaneLevelCritical() [L900] COND TRUE \read(tmp) [L902] CALL, EXPR isPumpRunning() [L685] int retValue_acc ; [L688] retValue_acc = pumpRunning [L689] return (retValue_acc); [L902] RET, EXPR isPumpRunning() [L902] tmp___0 = isPumpRunning() [L904] COND TRUE \read(tmp___0) [L906] CALL __automaton_fail() [L887] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 222 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 49.0s, OverallIterations: 7, TraceHistogramMax: 3, AutomataDifference: 24.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 771 SDtfs, 2766 SDslu, 1246 SDs, 0 SdLazy, 5719 SolverSat, 2032 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 352 GetRequests, 229 SyntacticMatches, 3 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 537 ImplicationChecksByTransitivity, 11.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=741occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 6 MinimizatonAttempts, 604 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 22.4s InterpolantComputationTime, 774 NumberOfCodeBlocks, 774 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 636 ConstructedInterpolants, 0 QuantifiedInterpolants, 256276 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 110/120 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...