/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.1 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product50.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 09:44:22,049 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 09:44:22,052 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 09:44:22,078 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 09:44:22,079 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 09:44:22,080 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 09:44:22,082 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 09:44:22,087 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 09:44:22,089 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 09:44:22,096 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 09:44:22,097 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 09:44:22,098 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 09:44:22,099 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 09:44:22,101 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 09:44:22,103 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 09:44:22,107 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 09:44:22,109 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 09:44:22,112 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 09:44:22,114 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 09:44:22,120 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 09:44:22,123 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 09:44:22,126 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 09:44:22,127 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 09:44:22,128 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 09:44:22,133 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 09:44:22,134 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 09:44:22,134 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 09:44:22,137 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 09:44:22,137 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 09:44:22,139 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 09:44:22,139 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 09:44:22,140 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 09:44:22,141 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 09:44:22,142 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 09:44:22,152 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 09:44:22,153 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 09:44:22,154 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 09:44:22,159 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 09:44:22,159 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 09:44:22,160 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 09:44:22,163 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 09:44:22,164 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 09:44:22,207 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 09:44:22,207 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 09:44:22,210 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 09:44:22,210 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 09:44:22,210 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 09:44:22,210 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 09:44:22,211 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 09:44:22,211 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 09:44:22,211 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 09:44:22,211 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 09:44:22,212 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 09:44:22,212 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 09:44:22,213 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 09:44:22,213 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 09:44:22,213 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 09:44:22,213 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 09:44:22,214 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 09:44:22,214 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 09:44:22,214 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 09:44:22,214 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 09:44:22,214 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 09:44:22,215 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:44:22,215 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 09:44:22,215 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 09:44:22,215 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 09:44:22,215 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 09:44:22,216 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 09:44:22,216 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 09:44:22,216 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 09:44:22,216 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; [2020-09-25 09:44:22,696 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 09:44:22,714 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 09:44:22,719 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 09:44:22,722 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 09:44:22,722 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 09:44:22,723 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product50.cil.c [2020-09-25 09:44:22,818 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/98b05e97c/83410ff3e5a94b82a47b13b6d35a5275/FLAGe31ad4d74 [2020-09-25 09:44:23,470 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 09:44:23,471 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product50.cil.c [2020-09-25 09:44:23,491 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/98b05e97c/83410ff3e5a94b82a47b13b6d35a5275/FLAGe31ad4d74 [2020-09-25 09:44:23,723 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/98b05e97c/83410ff3e5a94b82a47b13b6d35a5275 [2020-09-25 09:44:23,739 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 09:44:23,748 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 09:44:23,752 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 09:44:23,752 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 09:44:23,757 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 09:44:23,758 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:44:23" (1/1) ... [2020-09-25 09:44:23,763 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:44:23, skipping insertion in model container [2020-09-25 09:44:23,763 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:44:23" (1/1) ... [2020-09-25 09:44:23,774 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 09:44:23,847 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 09:44:24,222 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:44:24,238 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 09:44:24,414 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:44:24,456 INFO L208 MainTranslator]: Completed translation [2020-09-25 09:44:24,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:44:24 WrapperNode [2020-09-25 09:44:24,457 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 09:44:24,458 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 09:44:24,458 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 09:44:24,458 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 09:44:24,474 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:44:24" (1/1) ... [2020-09-25 09:44:24,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:44:24" (1/1) ... [2020-09-25 09:44:24,498 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:44:24" (1/1) ... [2020-09-25 09:44:24,499 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:44:24" (1/1) ... [2020-09-25 09:44:24,542 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:44:24" (1/1) ... [2020-09-25 09:44:24,558 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:44:24" (1/1) ... [2020-09-25 09:44:24,564 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:44:24" (1/1) ... [2020-09-25 09:44:24,572 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 09:44:24,572 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 09:44:24,572 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 09:44:24,572 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 09:44:24,574 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:44:24" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:44:24,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 09:44:24,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 09:44:24,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 09:44:24,649 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 09:44:24,649 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 09:44:24,650 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 09:44:24,650 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 09:44:24,650 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 09:44:24,650 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 09:44:24,650 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 09:44:24,650 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 09:44:24,651 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 09:44:24,651 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 09:44:24,651 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 09:44:24,651 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 09:44:24,651 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 09:44:24,652 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 09:44:24,652 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 09:44:24,652 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 09:44:24,652 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 09:44:24,652 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 09:44:24,653 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 09:44:24,653 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 09:44:24,653 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 09:44:24,653 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 09:44:24,653 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 09:44:24,653 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 09:44:24,654 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 09:44:24,654 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 09:44:24,654 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 09:44:24,654 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 09:44:24,654 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 09:44:24,654 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 09:44:24,655 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 09:44:24,655 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 09:44:24,655 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 09:44:24,655 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 09:44:24,655 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 09:44:24,656 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 09:44:24,656 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 09:44:24,656 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 09:44:24,656 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 09:44:24,656 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 09:44:24,656 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 09:44:24,657 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 09:44:24,657 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 09:44:24,657 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 09:44:24,657 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 09:44:24,657 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 09:44:24,657 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 09:44:24,658 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 09:44:24,658 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 09:44:24,658 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 09:44:24,658 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 09:44:24,658 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 09:44:24,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 09:44:24,659 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 09:44:24,659 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 09:44:24,659 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 09:44:24,659 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 09:44:24,659 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 09:44:24,659 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 09:44:24,660 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 09:44:24,660 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 09:44:24,660 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 09:44:24,660 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 09:44:24,660 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 09:44:24,660 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 09:44:24,661 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 09:44:24,661 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 09:44:24,661 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 09:44:24,661 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 09:44:24,661 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 09:44:24,661 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 09:44:24,662 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 09:44:24,662 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 09:44:24,662 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 09:44:24,662 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 09:44:24,662 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 09:44:24,662 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 09:44:24,662 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 09:44:24,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 09:44:24,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 09:44:24,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 09:44:24,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 09:44:24,663 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 09:44:24,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 09:44:24,664 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 09:44:24,664 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 09:44:24,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 09:44:24,664 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 09:44:24,664 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 09:44:24,664 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 09:44:24,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 09:44:24,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 09:44:24,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 09:44:25,899 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 09:44:25,899 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 09:44:25,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:44:25 BoogieIcfgContainer [2020-09-25 09:44:25,907 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 09:44:25,909 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 09:44:25,909 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 09:44:25,913 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 09:44:25,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 09:44:23" (1/3) ... [2020-09-25 09:44:25,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fbb63f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:44:25, skipping insertion in model container [2020-09-25 09:44:25,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:44:24" (2/3) ... [2020-09-25 09:44:25,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fbb63f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:44:25, skipping insertion in model container [2020-09-25 09:44:25,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:44:25" (3/3) ... [2020-09-25 09:44:25,921 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product50.cil.c [2020-09-25 09:44:25,935 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 09:44:25,951 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 09:44:25,976 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 09:44:26,024 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 09:44:26,024 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 09:44:26,025 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 09:44:26,025 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 09:44:26,025 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 09:44:26,025 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 09:44:26,026 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 09:44:26,027 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 09:44:26,069 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states. [2020-09-25 09:44:26,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 09:44:26,103 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:44:26,106 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:44:26,106 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:44:26,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:44:26,117 INFO L82 PathProgramCache]: Analyzing trace with hash -2015468822, now seen corresponding path program 1 times [2020-09-25 09:44:26,134 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:44:26,134 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [556481281] [2020-09-25 09:44:26,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:44:26,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:26,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:26,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:28,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:29,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:31,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:31,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 09:44:31,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 09:44:31,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-09-25 09:44:31,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:31,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:31,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 09:44:31,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 09:44:31,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 09:44:31,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 15 [2020-09-25 09:44:32,146 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:44:32,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:44:32,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:32,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:32,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:32,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:44:32,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:32,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 340 [2020-09-25 09:44:32,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:32,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:32,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:44:32,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:44:32,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 09:44:32,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:44:32,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:44:32,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:32,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:32,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:32,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:44:32,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:32,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:44:32,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:32,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:32,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:44:32,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:44:32,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:44:32,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:44:32,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:44:32,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:32,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:32,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:32,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:44:32,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:32,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:44:32,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:32,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:32,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:44:32,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:44:32,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:44:32,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:44:32,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:44:32,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:32,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:32,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:32,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:44:32,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:32,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 09:44:32,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:32,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:32,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:44:32,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:44:32,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:44:32,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:44:32,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:44:32,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:32,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:32,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:32,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:44:32,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:32,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:44:32,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:32,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:32,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:44:32,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:44:32,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:44:32,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:44:32,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 09:44:32,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:32,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:32,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:32,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:44:32,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:32,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 09:44:32,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:32,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:32,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:44:32,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:44:32,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:44:32,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:44:32,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 09:44:32,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:32,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:32,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:32,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:44:32,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:32,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:44:32,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:32,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:32,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:44:32,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:44:32,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:44:32,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:44:32,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:44:32,798 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [556481281] [2020-09-25 09:44:32,800 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:44:32,800 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 09:44:32,801 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886154052] [2020-09-25 09:44:32,808 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 09:44:32,808 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:44:32,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 09:44:32,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 09:44:32,830 INFO L87 Difference]: Start difference. First operand 322 states. Second operand 8 states. [2020-09-25 09:44:33,557 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:44:34,862 WARN L193 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 09:44:35,534 WARN L193 SmtUtils]: Spent 592.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 193 [2020-09-25 09:44:35,955 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:44:36,337 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:44:36,690 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:44:37,635 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 09:44:37,966 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-09-25 09:44:38,571 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:44:39,391 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 09:44:40,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:44:40,182 INFO L93 Difference]: Finished difference Result 673 states and 814 transitions. [2020-09-25 09:44:40,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 09:44:40,184 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-25 09:44:40,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:44:40,223 INFO L225 Difference]: With dead ends: 673 [2020-09-25 09:44:40,223 INFO L226 Difference]: Without dead ends: 451 [2020-09-25 09:44:40,235 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2020-09-25 09:44:40,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2020-09-25 09:44:40,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 395. [2020-09-25 09:44:40,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 395 states. [2020-09-25 09:44:40,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 435 transitions. [2020-09-25 09:44:40,401 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 435 transitions. Word has length 142 [2020-09-25 09:44:40,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:44:40,402 INFO L479 AbstractCegarLoop]: Abstraction has 395 states and 435 transitions. [2020-09-25 09:44:40,402 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 09:44:40,403 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 435 transitions. [2020-09-25 09:44:40,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 09:44:40,407 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:44:40,407 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:44:40,408 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 09:44:40,408 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:44:40,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:44:40,409 INFO L82 PathProgramCache]: Analyzing trace with hash -1621046252, now seen corresponding path program 1 times [2020-09-25 09:44:40,409 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:44:40,409 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [401420905] [2020-09-25 09:44:40,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:44:40,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:40,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:40,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:40,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:44,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:44,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-25 09:44:44,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:44:44,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4349 [2020-09-25 09:44:44,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:44,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:44,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 09:44:44,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 09:44:44,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-25 09:44:44,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:44:45,260 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:44:45,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:44:45,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:45,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:45,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:45,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:44:45,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:45,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-09-25 09:44:45,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:45,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:45,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:44:45,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:44:45,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 09:44:45,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:44:45,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:44:45,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:45,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:45,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:45,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:44:45,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:45,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:44:45,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:45,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:45,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:44:45,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:44:45,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:44:45,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:44:45,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:44:45,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:45,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:45,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:45,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:44:45,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:45,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:44:45,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:45,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:45,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:44:45,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:44:45,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:44:45,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:44:45,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:44:45,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:45,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:45,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:45,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:44:45,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:45,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:44:45,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:45,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:45,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:44:45,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:44:45,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:44:45,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:44:45,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:44:45,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:45,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:45,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:45,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:44:45,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:45,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:44:45,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:45,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:45,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:44:45,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:44:45,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:44:45,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:44:45,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 09:44:45,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:45,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:45,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:45,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:44:45,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:45,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 09:44:45,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:45,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:45,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:44:45,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:44:45,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 09:44:45,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:44:45,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 09:44:45,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:45,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:45,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:45,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 09:44:45,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:45,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 09:44:45,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:45,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:45,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:44:45,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:44:45,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 09:44:45,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:44:45,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 09:44:45,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:45,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:45,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:45,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:44:45,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:45,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 09:44:45,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:45,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:45,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:44:45,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:44:45,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:44:45,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:44:45,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 09:44:45,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:45,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:45,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:45,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:44:45,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:45,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 09:44:45,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:45,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:45,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:44:45,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:44:45,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:44:45,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:44:45,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:44:45,876 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [401420905] [2020-09-25 09:44:45,877 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:44:45,877 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 09:44:45,878 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957091267] [2020-09-25 09:44:45,881 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 09:44:45,881 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:44:45,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 09:44:45,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 09:44:45,882 INFO L87 Difference]: Start difference. First operand 395 states and 435 transitions. Second operand 10 states. [2020-09-25 09:44:46,416 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:44:47,766 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:44:48,156 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 09:44:48,503 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:44:48,886 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 09:44:49,220 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 09:44:50,003 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:44:50,297 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:44:50,759 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:44:52,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:44:52,293 INFO L93 Difference]: Finished difference Result 1082 states and 1354 transitions. [2020-09-25 09:44:52,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 09:44:52,294 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 161 [2020-09-25 09:44:52,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:44:52,303 INFO L225 Difference]: With dead ends: 1082 [2020-09-25 09:44:52,303 INFO L226 Difference]: Without dead ends: 797 [2020-09-25 09:44:52,306 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-25 09:44:52,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states. [2020-09-25 09:44:52,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 573. [2020-09-25 09:44:52,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 573 states. [2020-09-25 09:44:52,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 661 transitions. [2020-09-25 09:44:52,409 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 661 transitions. Word has length 161 [2020-09-25 09:44:52,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:44:52,410 INFO L479 AbstractCegarLoop]: Abstraction has 573 states and 661 transitions. [2020-09-25 09:44:52,411 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 09:44:52,411 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 661 transitions. [2020-09-25 09:44:52,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2020-09-25 09:44:52,414 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:44:52,415 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:44:52,415 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 09:44:52,415 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:44:52,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:44:52,416 INFO L82 PathProgramCache]: Analyzing trace with hash -304283484, now seen corresponding path program 1 times [2020-09-25 09:44:52,416 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:44:52,416 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [316388117] [2020-09-25 09:44:52,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:44:52,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:52,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:52,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:52,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:52,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:53,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:53,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:53,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:57,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:57,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 305 [2020-09-25 09:44:57,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 09:44:57,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5053 [2020-09-25 09:44:57,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:57,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:57,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:44:57,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 160 [2020-09-25 09:44:57,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-25 09:44:57,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:44:57,885 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:44:57,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:44:57,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:57,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:57,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:57,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:44:57,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:57,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-25 09:44:57,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:57,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:57,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:44:57,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:44:57,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:44:57,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:44:58,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:44:58,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:58,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:58,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:58,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:44:58,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:58,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:44:58,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:58,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:58,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:44:58,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:44:58,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:44:58,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:44:58,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:44:58,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:58,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:58,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:58,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:44:58,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:58,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:44:58,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:58,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:58,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:44:58,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:44:58,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:44:58,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:44:58,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:44:58,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:58,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:58,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:58,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:44:58,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:58,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:44:58,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:58,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:58,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:44:58,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:44:58,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:44:58,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:44:58,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:44:58,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:58,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:58,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:58,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:44:58,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:58,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 09:44:58,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:58,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:58,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:44:58,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:44:58,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:44:58,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:44:58,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 09:44:58,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:58,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:58,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:58,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:44:58,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:58,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:44:58,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:58,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:58,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:44:58,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:44:58,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:44:58,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:44:58,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 09:44:58,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:58,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:58,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:58,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 09:44:58,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:58,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:44:58,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:58,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:58,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:44:58,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:44:58,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:44:58,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:44:58,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 09:44:58,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:58,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:58,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:58,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 09:44:58,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:58,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:44:58,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:58,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:58,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:44:58,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:44:58,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 09:44:58,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:44:58,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:44:58,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:58,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:58,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:58,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 09:44:58,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:58,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:44:58,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:58,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:58,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:44:58,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:44:58,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 09:44:58,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:44:58,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:44:58,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:58,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:58,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:58,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:44:58,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:58,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:44:58,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:58,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:58,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:44:58,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:44:58,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:44:58,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:44:58,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-25 09:44:58,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:58,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:58,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:58,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:58,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 09:44:58,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:44:58,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:44:58,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:58,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:58,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:44:58,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:44:58,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-25 09:44:58,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:44:58,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:44:58,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:58,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:58,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:58,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 09:44:58,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:58,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:44:58,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:58,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:58,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:44:58,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:44:58,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:44:58,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:44:58,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:44:58,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:58,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:58,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:58,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:44:58,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:58,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:44:58,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:58,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:58,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:44:58,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:44:58,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:44:58,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:44:58,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-09-25 09:44:58,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:58,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:58,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:58,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:58,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 09:44:58,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:44:58,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 09:44:58,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:58,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:58,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:44:58,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 09:44:58,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 09:44:58,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:44:58,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:44:58,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:58,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:58,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:58,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 09:44:58,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:58,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-25 09:44:58,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:58,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:58,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:44:58,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 09:44:58,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 09:44:58,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:44:58,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:44:58,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:58,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:58,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:58,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 09:44:58,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:58,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 09:44:58,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:58,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:58,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:44:58,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:44:58,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 09:44:58,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:44:58,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:44:58,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:58,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:58,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:58,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:44:58,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:58,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:44:58,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:58,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:58,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:44:58,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:44:58,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:44:58,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:44:58,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 09:44:58,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:58,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:58,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:58,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 09:44:58,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:58,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:44:58,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:58,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:58,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:44:58,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 09:44:58,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:44:58,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:44:58,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2020-09-25 09:44:58,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:58,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:58,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:58,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:44:58,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:58,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:44:58,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:58,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:58,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:44:58,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:44:58,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:44:58,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:44:58,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2020-09-25 09:44:58,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:58,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:58,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:58,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:44:58,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:58,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:44:58,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:58,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:58,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:44:58,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:44:58,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:44:58,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:44:58,601 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 20 proven. 5 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-09-25 09:44:58,601 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [316388117] [2020-09-25 09:44:58,601 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:44:58,602 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-25 09:44:58,602 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90126972] [2020-09-25 09:44:58,603 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 09:44:58,603 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:44:58,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 09:44:58,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2020-09-25 09:44:58,604 INFO L87 Difference]: Start difference. First operand 573 states and 661 transitions. Second operand 13 states. [2020-09-25 09:45:00,030 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:45:00,809 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:45:01,210 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:45:01,541 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 09:45:01,975 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:45:02,465 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:45:02,830 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:45:06,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:45:06,764 INFO L93 Difference]: Finished difference Result 2282 states and 3152 transitions. [2020-09-25 09:45:06,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-09-25 09:45:06,765 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 248 [2020-09-25 09:45:06,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:45:06,780 INFO L225 Difference]: With dead ends: 2282 [2020-09-25 09:45:06,781 INFO L226 Difference]: Without dead ends: 1794 [2020-09-25 09:45:06,784 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=285, Invalid=1047, Unknown=0, NotChecked=0, Total=1332 [2020-09-25 09:45:06,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1794 states. [2020-09-25 09:45:06,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1794 to 821. [2020-09-25 09:45:06,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 821 states. [2020-09-25 09:45:06,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 953 transitions. [2020-09-25 09:45:06,917 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 953 transitions. Word has length 248 [2020-09-25 09:45:06,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:45:06,918 INFO L479 AbstractCegarLoop]: Abstraction has 821 states and 953 transitions. [2020-09-25 09:45:06,918 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 09:45:06,918 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 953 transitions. [2020-09-25 09:45:06,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-25 09:45:06,922 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:45:06,922 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:45:06,922 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 09:45:06,922 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:45:06,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:45:06,923 INFO L82 PathProgramCache]: Analyzing trace with hash -2037893768, now seen corresponding path program 1 times [2020-09-25 09:45:06,923 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:45:06,923 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2081212111] [2020-09-25 09:45:06,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:45:06,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:45:07,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:45:07,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:45:07,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-09-25 09:45:07,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:45:07,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 744 [2020-09-25 09:45:07,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:45:07,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:45:07,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:45:07,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 182 [2020-09-25 09:45:07,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:45:07,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:45:08,040 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:45:08,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:45:08,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:45:08,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:45:08,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:45:08,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:45:08,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:45:08,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 09:45:08,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:45:08,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:45:08,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:45:08,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:45:08,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:45:08,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:45:08,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:45:08,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:45:08,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:45:08,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:45:08,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:45:08,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:45:08,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:45:08,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:45:08,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:45:08,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:45:08,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:45:08,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:45:08,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:45:08,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:45:08,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:45:08,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:45:08,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:45:08,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:45:08,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:45:08,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:45:08,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:45:08,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:45:08,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:45:08,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:45:08,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:45:08,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:45:08,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:45:08,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:45:08,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:45:08,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:45:08,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:45:08,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:45:08,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:45:08,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:45:08,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:45:08,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:45:08,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:45:08,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:45:08,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:45:08,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:45:08,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:45:08,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:45:08,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:45:08,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:45:08,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:45:08,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:45:08,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:45:08,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:45:08,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:45:08,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:45:08,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:45:08,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:45:08,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 09:45:08,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:45:08,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:45:08,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:45:08,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:45:08,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:45:08,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 09:45:08,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:45:08,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:45:08,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:45:08,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:45:08,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:45:08,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:45:08,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 09:45:08,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:45:08,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:45:08,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:45:08,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 09:45:08,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:45:08,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:45:08,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:45:08,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:45:08,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:45:08,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:45:08,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:45:08,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:45:08,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 09:45:08,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:45:08,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:45:08,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:45:08,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 09:45:08,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:45:08,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-25 09:45:08,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:45:08,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:45:08,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:45:08,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 09:45:08,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:45:08,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:45:08,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:45:08,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:45:08,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:45:08,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:45:08,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 09:45:08,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:45:08,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-25 09:45:08,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:45:08,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:45:08,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:45:08,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 09:45:08,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:45:08,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:45:08,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:45:08,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:45:08,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:45:08,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:45:08,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 09:45:08,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:45:08,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 09:45:08,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:45:08,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:45:08,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:45:08,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 09:45:08,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:45:08,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:45:08,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:45:08,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:45:08,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:45:08,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:45:08,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:45:08,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:45:08,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:45:08,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:45:08,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:45:08,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:45:08,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:45:08,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:45:08,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:45:08,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 09:45:08,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:45:08,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:45:08,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:45:08,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 09:45:08,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:45:08,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:45:08,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:45:08,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:45:08,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:45:08,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 09:45:08,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:45:08,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:45:08,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-25 09:45:08,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:45:08,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:45:08,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:45:08,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:45:08,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:45:08,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:45:08,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:45:08,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:45:08,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:45:08,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:45:08,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:45:08,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:45:08,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-25 09:45:08,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:45:08,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:45:08,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:45:08,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:45:08,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:45:08,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:45:08,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:45:08,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:45:08,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:45:08,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:45:08,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:45:08,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:45:08,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:45:08,594 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2081212111] [2020-09-25 09:45:08,594 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:45:08,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 09:45:08,594 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772567003] [2020-09-25 09:45:08,595 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 09:45:08,596 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:45:08,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 09:45:08,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-25 09:45:08,597 INFO L87 Difference]: Start difference. First operand 821 states and 953 transitions. Second operand 10 states. [2020-09-25 09:45:09,967 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:45:10,282 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:45:10,637 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:45:10,966 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:45:11,252 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:45:13,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:45:13,008 INFO L93 Difference]: Finished difference Result 2279 states and 3001 transitions. [2020-09-25 09:45:13,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 09:45:13,009 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 199 [2020-09-25 09:45:13,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:45:13,027 INFO L225 Difference]: With dead ends: 2279 [2020-09-25 09:45:13,027 INFO L226 Difference]: Without dead ends: 1568 [2020-09-25 09:45:13,031 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-25 09:45:13,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1568 states. [2020-09-25 09:45:13,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1568 to 833. [2020-09-25 09:45:13,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 833 states. [2020-09-25 09:45:13,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 965 transitions. [2020-09-25 09:45:13,212 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 965 transitions. Word has length 199 [2020-09-25 09:45:13,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:45:13,213 INFO L479 AbstractCegarLoop]: Abstraction has 833 states and 965 transitions. [2020-09-25 09:45:13,214 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 09:45:13,214 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 965 transitions. [2020-09-25 09:45:13,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-25 09:45:13,219 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:45:13,219 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:45:13,220 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 09:45:13,220 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:45:13,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:45:13,221 INFO L82 PathProgramCache]: Analyzing trace with hash 616779547, now seen corresponding path program 1 times [2020-09-25 09:45:13,221 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:45:13,222 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1998617018] [2020-09-25 09:45:13,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:45:13,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:45:13,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking...