/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product52.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 23:42:27,083 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 23:42:27,087 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 23:42:27,119 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 23:42:27,120 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 23:42:27,121 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 23:42:27,122 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 23:42:27,124 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 23:42:27,126 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 23:42:27,127 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 23:42:27,128 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 23:42:27,130 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 23:42:27,130 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 23:42:27,131 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 23:42:27,132 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 23:42:27,133 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 23:42:27,134 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 23:42:27,135 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 23:42:27,137 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 23:42:27,139 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 23:42:27,141 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 23:42:27,142 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 23:42:27,144 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 23:42:27,144 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 23:42:27,148 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 23:42:27,148 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 23:42:27,148 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 23:42:27,149 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 23:42:27,150 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 23:42:27,151 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 23:42:27,151 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 23:42:27,152 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 23:42:27,153 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 23:42:27,154 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 23:42:27,155 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 23:42:27,156 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 23:42:27,157 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 23:42:27,157 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 23:42:27,157 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 23:42:27,159 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 23:42:27,160 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 23:42:27,165 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 23:42:27,203 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 23:42:27,203 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 23:42:27,205 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 23:42:27,205 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 23:42:27,205 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 23:42:27,205 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 23:42:27,206 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 23:42:27,206 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 23:42:27,206 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 23:42:27,206 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 23:42:27,207 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 23:42:27,207 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 23:42:27,207 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 23:42:27,207 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 23:42:27,208 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 23:42:27,208 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 23:42:27,208 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 23:42:27,208 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 23:42:27,209 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 23:42:27,209 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 23:42:27,209 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 23:42:27,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:42:27,209 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 23:42:27,210 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 23:42:27,210 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 23:42:27,210 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 23:42:27,210 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 23:42:27,210 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 23:42:27,211 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 23:42:27,211 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; [2020-09-24 23:42:27,697 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 23:42:27,724 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 23:42:27,728 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 23:42:27,731 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 23:42:27,733 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 23:42:27,734 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product52.cil.c [2020-09-24 23:42:27,814 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/00ec91c4e/f2129b3e6bd94eeeadf14e2fe7625ac3/FLAGc88c1e054 [2020-09-24 23:42:28,466 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 23:42:28,467 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product52.cil.c [2020-09-24 23:42:28,492 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/00ec91c4e/f2129b3e6bd94eeeadf14e2fe7625ac3/FLAGc88c1e054 [2020-09-24 23:42:28,740 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/00ec91c4e/f2129b3e6bd94eeeadf14e2fe7625ac3 [2020-09-24 23:42:28,758 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 23:42:28,765 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 23:42:28,769 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 23:42:28,769 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 23:42:28,773 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 23:42:28,775 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:42:28" (1/1) ... [2020-09-24 23:42:28,779 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7be095dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:42:28, skipping insertion in model container [2020-09-24 23:42:28,780 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:42:28" (1/1) ... [2020-09-24 23:42:28,790 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 23:42:28,844 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 23:42:29,207 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:42:29,337 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 23:42:29,495 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:42:29,538 INFO L208 MainTranslator]: Completed translation [2020-09-24 23:42:29,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:42:29 WrapperNode [2020-09-24 23:42:29,539 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 23:42:29,540 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 23:42:29,540 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 23:42:29,541 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 23:42:29,555 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:42:29" (1/1) ... [2020-09-24 23:42:29,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:42:29" (1/1) ... [2020-09-24 23:42:29,578 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:42:29" (1/1) ... [2020-09-24 23:42:29,578 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:42:29" (1/1) ... [2020-09-24 23:42:29,613 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:42:29" (1/1) ... [2020-09-24 23:42:29,625 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:42:29" (1/1) ... [2020-09-24 23:42:29,630 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:42:29" (1/1) ... [2020-09-24 23:42:29,639 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 23:42:29,640 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 23:42:29,640 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 23:42:29,640 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 23:42:29,642 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:42:29" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:42:29,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 23:42:29,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 23:42:29,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 23:42:29,746 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 23:42:29,747 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 23:42:29,748 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 23:42:29,748 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 23:42:29,748 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 23:42:29,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 23:42:29,749 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 23:42:29,750 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 23:42:29,750 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 23:42:29,750 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 23:42:29,750 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 23:42:29,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 23:42:29,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-24 23:42:29,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-24 23:42:29,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-24 23:42:29,752 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 23:42:29,752 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 23:42:29,753 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 23:42:29,753 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 23:42:29,754 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 23:42:29,754 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 23:42:29,755 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 23:42:29,755 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 23:42:29,756 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 23:42:29,756 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 23:42:29,756 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 23:42:29,756 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 23:42:29,756 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 23:42:29,756 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 23:42:29,757 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 23:42:29,757 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 23:42:29,757 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 23:42:29,757 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 23:42:29,757 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 23:42:29,757 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 23:42:29,757 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 23:42:29,758 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 23:42:29,759 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 23:42:29,760 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 23:42:29,760 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 23:42:29,760 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 23:42:29,760 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 23:42:29,760 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 23:42:29,760 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 23:42:29,761 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 23:42:29,761 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 23:42:29,761 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 23:42:29,761 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 23:42:29,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 23:42:29,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 23:42:29,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 23:42:29,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 23:42:29,762 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 23:42:29,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 23:42:29,763 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 23:42:29,763 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 23:42:29,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 23:42:29,763 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 23:42:29,763 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 23:42:29,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 23:42:29,764 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 23:42:29,764 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 23:42:29,764 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 23:42:29,765 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 23:42:29,765 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 23:42:29,765 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 23:42:29,765 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 23:42:29,766 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 23:42:29,767 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-24 23:42:29,768 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 23:42:29,768 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 23:42:29,768 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 23:42:29,768 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 23:42:29,768 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 23:42:29,769 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 23:42:29,769 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 23:42:29,769 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 23:42:29,769 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 23:42:29,769 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-24 23:42:29,769 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-24 23:42:29,769 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 23:42:29,770 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 23:42:29,770 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 23:42:29,770 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 23:42:29,770 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 23:42:29,770 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 23:42:29,770 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 23:42:29,770 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 23:42:29,771 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 23:42:29,771 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 23:42:29,771 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 23:42:29,771 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 23:42:29,771 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 23:42:29,771 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 23:42:29,772 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 23:42:29,772 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 23:42:29,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 23:42:29,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 23:42:29,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 23:42:30,959 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 23:42:30,960 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 23:42:30,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:42:30 BoogieIcfgContainer [2020-09-24 23:42:30,967 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 23:42:30,969 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 23:42:30,969 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 23:42:30,973 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 23:42:30,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:42:28" (1/3) ... [2020-09-24 23:42:30,974 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62181d86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:42:30, skipping insertion in model container [2020-09-24 23:42:30,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:42:29" (2/3) ... [2020-09-24 23:42:30,974 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62181d86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:42:30, skipping insertion in model container [2020-09-24 23:42:30,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:42:30" (3/3) ... [2020-09-24 23:42:30,977 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product52.cil.c [2020-09-24 23:42:30,989 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 23:42:31,004 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 23:42:31,028 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 23:42:31,075 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 23:42:31,076 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 23:42:31,076 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 23:42:31,076 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 23:42:31,076 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 23:42:31,078 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 23:42:31,078 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 23:42:31,078 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 23:42:31,125 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states. [2020-09-24 23:42:31,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 23:42:31,163 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:42:31,167 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:42:31,167 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:42:31,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:42:31,176 INFO L82 PathProgramCache]: Analyzing trace with hash -1537193483, now seen corresponding path program 1 times [2020-09-24 23:42:31,189 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:42:31,190 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [23001318] [2020-09-24 23:42:31,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:42:31,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:31,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:31,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:33,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:33,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:36,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:36,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:36,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-24 23:42:36,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 23:42:36,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-09-24 23:42:36,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:36,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 23:42:36,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-24 23:42:36,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-24 23:42:36,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-24 23:42:37,087 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:42:37,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:42:37,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:37,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:37,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:37,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 23:42:37,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:37,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 302 [2020-09-24 23:42:37,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:37,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:42:37,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:37,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 23:42:37,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:37,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 23:42:37,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:37,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:37,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:37,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:42:37,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:37,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 23:42:37,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:37,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:42:37,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:37,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:42:37,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:37,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 23:42:37,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:37,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:37,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:37,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:42:37,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:37,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:42:37,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:37,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:42:37,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:37,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:42:37,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:37,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 23:42:37,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:37,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:37,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:37,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:42:37,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:37,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:42:37,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:37,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:42:37,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:37,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:42:37,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:37,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 23:42:37,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:37,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:37,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:37,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:42:37,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:37,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:42:37,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:37,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:42:37,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:37,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:42:37,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:37,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 23:42:37,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:37,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:37,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:37,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:42:37,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:37,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:42:37,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:37,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:42:37,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:37,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:42:37,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:42:37,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 23:42:37,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:37,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:37,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:37,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 23:42:37,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:37,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 23:42:37,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:37,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:42:37,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:37,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 23:42:37,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:37,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:42:37,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:37,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:37,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:37,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:42:37,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:37,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:42:37,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:37,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:42:37,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:37,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:42:37,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:42:37,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 23:42:37,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:37,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:37,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:37,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:42:37,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:37,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:42:37,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:37,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:42:37,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:37,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:42:37,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:42:37,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 23:42:37,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:37,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:37,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:37,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:42:37,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:37,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 23:42:37,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:37,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:42:37,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:37,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:42:37,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:42:37,809 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 23:42:37,810 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [23001318] [2020-09-24 23:42:37,813 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:42:37,813 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 23:42:37,814 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053866786] [2020-09-24 23:42:37,827 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 23:42:37,827 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:42:37,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 23:42:37,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 23:42:37,857 INFO L87 Difference]: Start difference. First operand 335 states. Second operand 9 states. [2020-09-24 23:42:38,498 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:42:39,279 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:42:39,564 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:42:41,033 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:42:41,355 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:42:41,755 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:42:42,224 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:42:42,551 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:42:42,861 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:42:43,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:42:43,848 INFO L93 Difference]: Finished difference Result 645 states and 784 transitions. [2020-09-24 23:42:43,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 23:42:43,850 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 160 [2020-09-24 23:42:43,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:42:43,872 INFO L225 Difference]: With dead ends: 645 [2020-09-24 23:42:43,872 INFO L226 Difference]: Without dead ends: 434 [2020-09-24 23:42:43,879 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-24 23:42:43,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2020-09-24 23:42:44,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 383. [2020-09-24 23:42:44,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 383 states. [2020-09-24 23:42:44,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 430 transitions. [2020-09-24 23:42:44,015 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 430 transitions. Word has length 160 [2020-09-24 23:42:44,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:42:44,016 INFO L479 AbstractCegarLoop]: Abstraction has 383 states and 430 transitions. [2020-09-24 23:42:44,016 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 23:42:44,016 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 430 transitions. [2020-09-24 23:42:44,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-24 23:42:44,022 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:42:44,022 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:42:44,023 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 23:42:44,023 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:42:44,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:42:44,023 INFO L82 PathProgramCache]: Analyzing trace with hash 504237384, now seen corresponding path program 1 times [2020-09-24 23:42:44,023 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:42:44,024 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1359979246] [2020-09-24 23:42:44,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:42:44,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:44,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:44,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:46,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:46,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 246 [2020-09-24 23:42:46,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:42:46,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2488 [2020-09-24 23:42:46,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:46,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:42:46,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-24 23:42:46,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 23:42:46,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:42:46,901 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:42:46,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:42:46,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:46,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:47,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:47,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 23:42:47,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:47,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-24 23:42:47,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:47,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:42:47,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:47,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:42:47,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:47,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 23:42:47,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:47,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:47,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:47,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:42:47,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:47,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:42:47,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:47,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:42:47,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:47,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:42:47,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:47,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 23:42:47,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:47,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:47,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:47,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:42:47,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:47,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:42:47,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:47,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:42:47,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:47,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:42:47,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:47,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 23:42:47,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:47,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:47,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:47,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:42:47,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:47,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:42:47,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:47,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:42:47,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:47,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:42:47,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:47,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 23:42:47,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:47,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:47,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:47,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:42:47,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:47,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:42:47,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:47,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:42:47,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:47,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:42:47,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:42:47,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 23:42:47,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:47,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:47,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:47,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:42:47,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:47,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:42:47,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:47,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:42:47,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:47,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:42:47,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 23:42:47,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 23:42:47,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:47,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:47,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:47,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 23:42:47,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:47,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:42:47,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:47,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:42:47,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 23:42:47,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:42:47,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:47,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:42:47,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:47,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:47,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:47,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:42:47,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:47,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:42:47,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:47,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:42:47,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:47,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:42:47,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:47,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 23:42:47,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:47,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:47,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:47,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:47,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 23:42:47,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:42:47,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-09-24 23:42:47,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:47,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:42:47,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 23:42:47,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:42:47,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:47,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:42:47,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:47,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:47,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:47,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 23:42:47,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:47,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-24 23:42:47,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:47,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:42:47,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 23:42:47,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:42:47,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:42:47,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:42:47,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:47,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:47,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:47,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:42:47,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:47,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-24 23:42:47,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:47,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:42:47,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:47,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 23:42:47,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:42:47,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:42:47,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:47,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:47,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:47,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:42:47,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:47,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:42:47,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:47,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:42:47,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:47,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:42:47,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:47,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 23:42:47,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:47,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:47,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:47,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:42:47,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:47,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:42:47,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:47,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:42:47,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 23:42:47,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:42:47,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:47,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-09-24 23:42:47,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:47,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:47,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:47,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:42:47,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:47,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:42:47,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:47,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:42:47,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:42:47,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:42:47,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:47,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-09-24 23:42:47,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:47,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:47,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:47,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:42:47,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:47,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:42:47,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:47,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:42:47,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:42:47,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:42:47,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:47,569 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 23:42:47,569 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1359979246] [2020-09-24 23:42:47,570 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:42:47,570 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 23:42:47,570 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331392441] [2020-09-24 23:42:47,574 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 23:42:47,575 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:42:47,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 23:42:47,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-09-24 23:42:47,576 INFO L87 Difference]: Start difference. First operand 383 states and 430 transitions. Second operand 11 states. [2020-09-24 23:42:48,337 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:42:49,536 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:42:49,901 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:42:50,252 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-24 23:42:50,584 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:42:50,909 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:42:51,234 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:42:52,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:42:52,255 INFO L93 Difference]: Finished difference Result 716 states and 846 transitions. [2020-09-24 23:42:52,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 23:42:52,256 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 199 [2020-09-24 23:42:52,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:42:52,262 INFO L225 Difference]: With dead ends: 716 [2020-09-24 23:42:52,262 INFO L226 Difference]: Without dead ends: 448 [2020-09-24 23:42:52,266 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=97, Invalid=323, Unknown=0, NotChecked=0, Total=420 [2020-09-24 23:42:52,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2020-09-24 23:42:52,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 380. [2020-09-24 23:42:52,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 380 states. [2020-09-24 23:42:52,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 419 transitions. [2020-09-24 23:42:52,330 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 419 transitions. Word has length 199 [2020-09-24 23:42:52,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:42:52,331 INFO L479 AbstractCegarLoop]: Abstraction has 380 states and 419 transitions. [2020-09-24 23:42:52,331 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 23:42:52,332 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 419 transitions. [2020-09-24 23:42:52,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-24 23:42:52,337 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:42:52,337 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:42:52,337 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 23:42:52,337 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:42:52,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:42:52,338 INFO L82 PathProgramCache]: Analyzing trace with hash 1959869936, now seen corresponding path program 1 times [2020-09-24 23:42:52,338 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:42:52,338 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1747219651] [2020-09-24 23:42:52,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:42:52,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:52,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:53,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:53,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 259 [2020-09-24 23:42:53,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:53,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 883 [2020-09-24 23:42:53,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:53,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:42:53,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 198 [2020-09-24 23:42:53,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:42:53,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:53,556 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:42:53,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:42:53,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:53,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:53,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:53,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 23:42:53,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:53,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-24 23:42:53,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:53,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:42:53,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:53,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:42:53,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:53,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 23:42:53,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:53,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:53,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:53,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:42:53,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:53,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:42:53,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:53,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:42:53,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:53,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:42:53,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:53,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 23:42:53,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:53,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:53,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:53,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:42:53,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:53,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:42:53,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:53,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:42:53,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:53,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:42:53,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:53,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 23:42:53,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:53,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:53,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:53,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:42:53,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:53,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:42:53,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:53,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:42:53,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:53,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:42:53,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:53,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 23:42:53,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:53,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:53,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:53,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:42:53,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:53,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:42:53,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:53,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:42:53,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:53,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:42:53,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:53,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 23:42:53,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:53,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:53,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:53,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:42:53,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:53,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:42:53,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:53,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:42:53,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:53,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:42:53,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:53,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 23:42:53,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:53,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:53,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:53,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:42:53,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:53,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:42:53,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:53,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:42:53,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:53,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:42:53,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:53,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 23:42:53,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:53,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:53,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:53,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 23:42:53,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:53,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:42:53,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:53,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:42:53,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:53,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:42:53,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:53,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:42:53,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:53,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:53,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:53,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:42:53,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:53,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:42:53,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:53,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:42:53,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:53,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:42:53,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:53,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 23:42:53,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:53,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:53,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:53,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 23:42:53,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:53,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-24 23:42:53,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:53,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:42:53,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 23:42:53,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:42:53,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:53,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:42:53,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:53,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:53,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:53,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 23:42:53,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:53,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-24 23:42:53,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:53,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:42:53,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 23:42:53,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:42:53,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:42:53,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:42:53,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:53,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:53,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:53,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:42:53,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:53,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 23:42:53,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:53,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:42:53,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:42:53,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:42:53,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:54,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:42:54,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:54,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:54,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:54,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:42:54,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:54,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:42:54,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:54,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:42:54,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:54,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:42:54,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:42:54,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 23:42:54,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:54,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:54,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:54,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:42:54,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:54,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:42:54,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:54,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:42:54,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 23:42:54,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:42:54,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:42:54,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2020-09-24 23:42:54,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:54,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:54,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:54,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:42:54,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:54,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:42:54,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:54,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:42:54,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:42:54,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:42:54,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:42:54,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-09-24 23:42:54,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:54,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:54,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:54,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:42:54,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:54,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:42:54,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:54,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:42:54,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:42:54,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:42:54,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:42:54,226 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 23:42:54,227 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1747219651] [2020-09-24 23:42:54,227 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:42:54,228 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 23:42:54,228 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989585487] [2020-09-24 23:42:54,229 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 23:42:54,229 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:42:54,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 23:42:54,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-24 23:42:54,230 INFO L87 Difference]: Start difference. First operand 380 states and 419 transitions. Second operand 10 states. [2020-09-24 23:42:55,590 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:42:55,913 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:42:56,254 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:42:56,646 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:42:56,933 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:42:58,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:42:58,037 INFO L93 Difference]: Finished difference Result 794 states and 968 transitions. [2020-09-24 23:42:58,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 23:42:58,038 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 212 [2020-09-24 23:42:58,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:42:58,051 INFO L225 Difference]: With dead ends: 794 [2020-09-24 23:42:58,051 INFO L226 Difference]: Without dead ends: 529 [2020-09-24 23:42:58,053 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-24 23:42:58,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2020-09-24 23:42:58,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 386. [2020-09-24 23:42:58,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 386 states. [2020-09-24 23:42:58,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 425 transitions. [2020-09-24 23:42:58,113 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 425 transitions. Word has length 212 [2020-09-24 23:42:58,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:42:58,113 INFO L479 AbstractCegarLoop]: Abstraction has 386 states and 425 transitions. [2020-09-24 23:42:58,114 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 23:42:58,114 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 425 transitions. [2020-09-24 23:42:58,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-24 23:42:58,117 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:42:58,117 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:42:58,117 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 23:42:58,117 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:42:58,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:42:58,118 INFO L82 PathProgramCache]: Analyzing trace with hash -1644603219, now seen corresponding path program 1 times [2020-09-24 23:42:58,118 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:42:58,118 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2115010149] [2020-09-24 23:42:58,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:42:58,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:58,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:59,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:59,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 259 [2020-09-24 23:42:59,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:59,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1505 [2020-09-24 23:42:59,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:59,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 23:42:59,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 23:42:59,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-24 23:42:59,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:43:00,018 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:43:00,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:43:00,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:43:00,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:43:00,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:43:00,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 23:43:00,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:43:00,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 235 [2020-09-24 23:43:00,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:43:00,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:43:00,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:43:00,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 23:43:00,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:43:00,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 23:43:00,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:43:00,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:43:00,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:43:00,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:43:00,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:43:00,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:43:00,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:43:00,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:43:00,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:43:00,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:43:00,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:43:00,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 23:43:00,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:43:00,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:43:00,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:43:00,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:43:00,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:43:00,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:43:00,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:43:00,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:43:00,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:43:00,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:43:00,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:43:00,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 23:43:00,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:43:00,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:43:00,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:43:00,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:43:00,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:43:00,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:43:00,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:43:00,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:43:00,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:43:00,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:43:00,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:43:00,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 23:43:00,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:43:00,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:43:00,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:43:00,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:43:00,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:43:00,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:43:00,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:43:00,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:43:00,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:43:00,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:43:00,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:43:00,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 23:43:00,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:43:00,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:43:00,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:43:00,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:43:00,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:43:00,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:43:00,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:43:00,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:43:00,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:43:00,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:43:00,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:43:00,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 23:43:00,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:43:00,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:43:00,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:43:00,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:43:00,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:43:00,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:43:00,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:43:00,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:43:00,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:43:00,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:43:00,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:43:00,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 23:43:00,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:43:00,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:43:00,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:43:00,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 23:43:00,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:43:00,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:43:00,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:43:00,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:43:00,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:43:00,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 23:43:00,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:43:00,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:43:00,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:43:00,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:43:00,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:43:00,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:43:00,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:43:00,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:43:00,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:43:00,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:43:00,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:43:00,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:43:00,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:43:00,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 23:43:00,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:43:00,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:43:00,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:43:00,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 23:43:00,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:43:00,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 23:43:00,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:43:00,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:43:00,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-24 23:43:00,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 23:43:00,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:43:00,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:43:00,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:43:00,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:43:00,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:43:00,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 23:43:00,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:43:00,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 23:43:00,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:43:00,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:43:00,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:43:00,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 23:43:00,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:43:00,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:43:00,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:43:00,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:43:00,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:43:00,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:43:00,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:43:00,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 23:43:00,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:43:00,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:43:00,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:43:00,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:43:00,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:43:00,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:43:00,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:43:00,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:43:00,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:43:00,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:43:00,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:43:00,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:43:00,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:43:00,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:43:00,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:43:00,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 23:43:00,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:43:00,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 23:43:00,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:43:00,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:43:00,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:43:00,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:43:00,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:43:00,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:43:00,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:43:00,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:43:00,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:43:00,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:43:00,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:43:00,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2020-09-24 23:43:00,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:43:00,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:43:00,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:43:00,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:43:00,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:43:00,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:43:00,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:43:00,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:43:00,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:43:00,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:43:00,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:43:00,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-09-24 23:43:00,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:43:00,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:43:00,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:43:00,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:43:00,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:43:00,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:43:00,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:43:00,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:43:00,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:43:00,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:43:00,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:43:00,608 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 23:43:00,609 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2115010149] [2020-09-24 23:43:00,609 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:43:00,609 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 23:43:00,610 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605839466] [2020-09-24 23:43:00,610 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 23:43:00,611 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:43:00,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 23:43:00,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-24 23:43:00,611 INFO L87 Difference]: Start difference. First operand 386 states and 425 transitions. Second operand 8 states. [2020-09-24 23:43:01,321 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:43:03,015 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:43:06,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:43:06,015 INFO L93 Difference]: Finished difference Result 1384 states and 1780 transitions. [2020-09-24 23:43:06,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-09-24 23:43:06,015 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 212 [2020-09-24 23:43:06,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:43:06,024 INFO L225 Difference]: With dead ends: 1384 [2020-09-24 23:43:06,024 INFO L226 Difference]: Without dead ends: 1113 [2020-09-24 23:43:06,026 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=180, Invalid=576, Unknown=0, NotChecked=0, Total=756 [2020-09-24 23:43:06,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1113 states. [2020-09-24 23:43:06,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1113 to 778. [2020-09-24 23:43:06,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 778 states. [2020-09-24 23:43:06,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 898 transitions. [2020-09-24 23:43:06,140 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 898 transitions. Word has length 212 [2020-09-24 23:43:06,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:43:06,141 INFO L479 AbstractCegarLoop]: Abstraction has 778 states and 898 transitions. [2020-09-24 23:43:06,141 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 23:43:06,141 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 898 transitions. [2020-09-24 23:43:06,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-09-24 23:43:06,146 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:43:06,146 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:43:06,146 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 23:43:06,147 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:43:06,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:43:06,147 INFO L82 PathProgramCache]: Analyzing trace with hash 1219512252, now seen corresponding path program 1 times [2020-09-24 23:43:06,147 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:43:06,147 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1878549013] [2020-09-24 23:43:06,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:43:06,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:43:06,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:43:06,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:43:11,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:43:11,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-09-24 23:43:11,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:43:11,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-09-24 23:43:11,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:43:11,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 23:43:11,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 23:43:11,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 169 [2020-09-24 23:43:11,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:43:11,611 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:43:11,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:43:11,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:43:11,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:43:11,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:43:11,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 23:43:11,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:43:11,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 245 [2020-09-24 23:43:11,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:43:11,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:43:11,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:43:11,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 23:43:11,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:43:11,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 23:43:11,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:43:11,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:43:11,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:43:11,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:43:11,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:43:11,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:43:11,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:43:11,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:43:11,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:43:11,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:43:11,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:43:11,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 23:43:11,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:43:11,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:43:11,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:43:11,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:43:11,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:43:11,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:43:11,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:43:11,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:43:11,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:43:11,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:43:11,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:43:11,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 23:43:11,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:43:11,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:43:11,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:43:11,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:43:11,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:43:11,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:43:11,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:43:11,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:43:11,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:43:11,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:43:11,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:43:11,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 23:43:11,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:43:11,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:43:11,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:43:11,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:43:11,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:43:11,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:43:11,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:43:11,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:43:11,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:43:11,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:43:11,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:43:11,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 23:43:11,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:43:11,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:43:11,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:43:11,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:43:11,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:43:11,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:43:11,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:43:11,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:43:11,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:43:11,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:43:11,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:43:12,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 23:43:12,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:43:12,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:43:12,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:43:12,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:43:12,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:43:12,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 23:43:12,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:43:12,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:43:12,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 23:43:12,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:43:12,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:43:12,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 23:43:12,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:43:12,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:43:12,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:43:12,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:43:12,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:43:12,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:43:12,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:43:12,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:43:12,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:43:12,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:43:12,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:43:12,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 23:43:12,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:43:12,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:43:12,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:43:12,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 23:43:12,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:43:12,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:43:12,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:43:12,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:43:12,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:43:12,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 23:43:12,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:43:12,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:43:12,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:43:12,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:43:12,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:43:12,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:43:12,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:43:12,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-24 23:43:12,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:43:12,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:43:12,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:43:12,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:43:12,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:43:12,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-24 23:43:12,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:43:12,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:43:12,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:43:12,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 23:43:12,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:43:12,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 23:43:12,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:43:12,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:43:12,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:43:12,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-24 23:43:12,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:43:12,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:43:12,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:43:12,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:43:12,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:43:12,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 23:43:12,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:43:12,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 23:43:12,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:43:12,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:43:12,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:43:12,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:43:12,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:43:12,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:43:12,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:43:12,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:43:12,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:43:12,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:43:12,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:43:12,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:43:12,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:43:12,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:43:12,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:43:12,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:43:12,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:43:12,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:43:12,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:43:12,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:43:12,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:43:12,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:43:12,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:43:12,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:43:12,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:43:12,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:43:12,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:43:12,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:43:12,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:43:12,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 23:43:12,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:43:12,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:43:12,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:43:12,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:43:12,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:43:12,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:43:12,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:43:12,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:43:12,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:43:12,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:43:12,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:43:12,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-09-24 23:43:12,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:43:12,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:43:12,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:43:12,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:43:12,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:43:12,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:43:12,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:43:12,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:43:12,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:43:12,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:43:12,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:43:12,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-24 23:43:12,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:43:12,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:43:12,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:43:12,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:43:12,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:43:12,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:43:12,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:43:12,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:43:12,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:43:12,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:43:12,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:43:12,443 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 23:43:12,443 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1878549013] [2020-09-24 23:43:12,443 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:43:12,444 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-24 23:43:12,444 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594972318] [2020-09-24 23:43:12,444 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-24 23:43:12,445 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:43:12,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-24 23:43:12,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-09-24 23:43:12,445 INFO L87 Difference]: Start difference. First operand 778 states and 898 transitions. Second operand 14 states. [2020-09-24 23:43:13,024 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:43:13,909 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:43:15,068 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:43:15,431 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:43:15,844 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:43:16,182 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:43:16,547 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:43:16,892 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:43:17,271 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 193