/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=HIGHLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product56.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 22:27:26,673 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 22:27:26,676 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 22:27:26,704 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 22:27:26,705 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 22:27:26,706 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 22:27:26,708 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 22:27:26,710 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 22:27:26,711 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 22:27:26,712 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 22:27:26,714 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 22:27:26,715 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 22:27:26,715 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 22:27:26,716 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 22:27:26,718 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 22:27:26,719 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 22:27:26,720 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 22:27:26,722 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 22:27:26,724 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 22:27:26,726 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 22:27:26,727 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 22:27:26,729 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 22:27:26,730 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 22:27:26,731 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 22:27:26,734 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 22:27:26,734 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 22:27:26,735 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 22:27:26,736 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 22:27:26,736 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 22:27:26,738 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 22:27:26,738 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 22:27:26,739 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 22:27:26,740 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 22:27:26,741 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 22:27:26,742 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 22:27:26,742 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 22:27:26,743 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 22:27:26,743 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 22:27:26,744 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 22:27:26,745 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 22:27:26,746 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 22:27:26,747 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 22:27:26,774 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 22:27:26,774 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 22:27:26,776 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 22:27:26,776 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 22:27:26,776 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 22:27:26,776 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 22:27:26,777 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 22:27:26,777 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 22:27:26,777 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 22:27:26,777 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 22:27:26,778 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 22:27:26,778 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 22:27:26,778 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 22:27:26,778 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 22:27:26,778 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 22:27:26,779 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 22:27:26,779 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 22:27:26,779 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 22:27:26,779 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 22:27:26,779 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 22:27:26,780 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 22:27:26,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:27:26,780 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 22:27:26,780 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 22:27:26,780 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 22:27:26,781 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 22:27:26,781 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 22:27:26,781 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 22:27:26,781 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 22:27:26,782 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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;log-additional-information=true; [2020-09-24 22:27:27,232 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 22:27:27,250 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 22:27:27,255 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 22:27:27,257 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 22:27:27,258 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 22:27:27,259 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product56.cil.c [2020-09-24 22:27:27,342 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e9816a2a0/4ff4ff0906f340a4bf40d9169ce98e48/FLAGad89277b5 [2020-09-24 22:27:27,950 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 22:27:27,951 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product56.cil.c [2020-09-24 22:27:27,972 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e9816a2a0/4ff4ff0906f340a4bf40d9169ce98e48/FLAGad89277b5 [2020-09-24 22:27:28,182 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e9816a2a0/4ff4ff0906f340a4bf40d9169ce98e48 [2020-09-24 22:27:28,195 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 22:27:28,201 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 22:27:28,202 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 22:27:28,202 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 22:27:28,206 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 22:27:28,208 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:27:28" (1/1) ... [2020-09-24 22:27:28,212 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a11bedd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:27:28, skipping insertion in model container [2020-09-24 22:27:28,212 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:27:28" (1/1) ... [2020-09-24 22:27:28,221 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 22:27:28,298 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 22:27:28,841 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:27:28,859 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 22:27:29,032 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:27:29,071 INFO L208 MainTranslator]: Completed translation [2020-09-24 22:27:29,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:27:29 WrapperNode [2020-09-24 22:27:29,072 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 22:27:29,073 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 22:27:29,073 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 22:27:29,073 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 22:27:29,088 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:27:29" (1/1) ... [2020-09-24 22:27:29,089 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:27:29" (1/1) ... [2020-09-24 22:27:29,109 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:27:29" (1/1) ... [2020-09-24 22:27:29,110 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:27:29" (1/1) ... [2020-09-24 22:27:29,154 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:27:29" (1/1) ... [2020-09-24 22:27:29,166 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:27:29" (1/1) ... [2020-09-24 22:27:29,171 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:27:29" (1/1) ... [2020-09-24 22:27:29,180 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 22:27:29,180 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 22:27:29,181 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 22:27:29,181 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 22:27:29,182 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:27:29" (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 22:27:29,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 22:27:29,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 22:27:29,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 22:27:29,276 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 22:27:29,276 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 22:27:29,277 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 22:27:29,277 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 22:27:29,278 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 22:27:29,279 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 22:27:29,279 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 22:27:29,279 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 22:27:29,279 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 22:27:29,279 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 22:27:29,280 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 22:27:29,280 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 22:27:29,281 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 22:27:29,281 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 22:27:29,281 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 22:27:29,281 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-24 22:27:29,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-24 22:27:29,282 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 22:27:29,282 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 22:27:29,283 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 22:27:29,283 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 22:27:29,283 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 22:27:29,285 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 22:27:29,285 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 22:27:29,285 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 22:27:29,285 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 22:27:29,285 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 22:27:29,285 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 22:27:29,286 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 22:27:29,286 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 22:27:29,286 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 22:27:29,286 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 22:27:29,287 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 22:27:29,287 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 22:27:29,287 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 22:27:29,288 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 22:27:29,288 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 22:27:29,288 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 22:27:29,288 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 22:27:29,288 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 22:27:29,288 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 22:27:29,289 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 22:27:29,289 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 22:27:29,289 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 22:27:29,289 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 22:27:29,289 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 22:27:29,290 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 22:27:29,290 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 22:27:29,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 22:27:29,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 22:27:29,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 22:27:29,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 22:27:29,291 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 22:27:29,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 22:27:29,292 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 22:27:29,292 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 22:27:29,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 22:27:29,292 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 22:27:29,292 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 22:27:29,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 22:27:29,293 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 22:27:29,293 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 22:27:29,293 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 22:27:29,293 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 22:27:29,294 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 22:27:29,294 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 22:27:29,294 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 22:27:29,295 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 22:27:29,296 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 22:27:29,297 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 22:27:29,297 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 22:27:29,298 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-24 22:27:29,298 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-24 22:27:29,298 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 22:27:29,298 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 22:27:29,298 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 22:27:29,299 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 22:27:29,299 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 22:27:29,299 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 22:27:29,299 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 22:27:29,300 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 22:27:29,300 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 22:27:29,301 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 22:27:29,301 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 22:27:29,301 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 22:27:29,301 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 22:27:29,301 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 22:27:29,301 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 22:27:29,301 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 22:27:29,302 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 22:27:29,302 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 22:27:29,302 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 22:27:29,302 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 22:27:29,302 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 22:27:29,302 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 22:27:29,303 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 22:27:29,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 22:27:29,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 22:27:29,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 22:27:30,601 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 22:27:30,602 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 22:27:30,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:27:30 BoogieIcfgContainer [2020-09-24 22:27:30,612 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 22:27:30,616 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 22:27:30,617 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 22:27:30,620 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 22:27:30,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 10:27:28" (1/3) ... [2020-09-24 22:27:30,622 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@709df78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:27:30, skipping insertion in model container [2020-09-24 22:27:30,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:27:29" (2/3) ... [2020-09-24 22:27:30,623 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@709df78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:27:30, skipping insertion in model container [2020-09-24 22:27:30,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:27:30" (3/3) ... [2020-09-24 22:27:30,625 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product56.cil.c [2020-09-24 22:27:30,637 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 22:27:30,651 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 22:27:30,671 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 22:27:30,700 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 22:27:30,701 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 22:27:30,701 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 22:27:30,701 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 22:27:30,701 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 22:27:30,701 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 22:27:30,702 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 22:27:30,702 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 22:27:30,731 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states. [2020-09-24 22:27:30,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 22:27:30,751 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:27:30,753 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:27:30,754 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:27:30,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:27:30,762 INFO L82 PathProgramCache]: Analyzing trace with hash -1985307326, now seen corresponding path program 1 times [2020-09-24 22:27:30,771 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:27:30,772 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1682620045] [2020-09-24 22:27:30,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:27:31,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:31,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:31,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:33,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:34,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:35,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:35,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:36,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:36,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 22:27:36,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 22:27:36,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-09-24 22:27:36,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:36,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:27:36,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 145 [2020-09-24 22:27:36,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 22:27:36,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 22:27:36,637 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:27:36,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:27:36,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:36,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:36,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:36,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 22:27:36,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:36,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-09-24 22:27:36,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:36,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:36,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:36,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:36,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:27:36,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 22:27:36,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:36,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:36,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:36,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:27:36,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:36,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:27:36,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:36,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:36,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:36,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:36,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:27:36,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 22:27:36,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:36,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:36,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:36,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:27:36,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:36,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:27:36,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:36,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:36,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:36,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:36,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:27:36,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 22:27:36,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:36,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:36,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:36,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:27:36,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:36,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:27:36,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:36,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:36,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:36,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:36,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:36,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 22:27:36,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:36,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:36,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:36,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:27:36,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:36,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:27:36,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:36,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:36,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:36,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:36,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:36,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 22:27:36,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:36,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:36,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:36,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:27:36,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:36,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:27:36,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:36,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:36,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:36,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:36,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:27:36,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 22:27:36,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:36,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:36,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:36,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:27:36,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:36,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:27:36,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:36,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:27:36,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:36,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:27:36,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:36,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 22:27:36,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:36,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:36,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:36,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:27:36,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:36,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 22:27:36,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:36,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:27:36,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:36,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:27:36,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:27:37,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:27:37,003 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1682620045] [2020-09-24 22:27:37,005 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:27:37,006 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 22:27:37,007 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545088359] [2020-09-24 22:27:37,014 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 22:27:37,015 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:27:37,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 22:27:37,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 22:27:37,043 INFO L87 Difference]: Start difference. First operand 351 states. Second operand 9 states. [2020-09-24 22:27:37,740 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:27:39,370 WARN L193 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-09-24 22:27:39,998 WARN L193 SmtUtils]: Spent 564.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 193 [2020-09-24 22:27:40,381 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:27:40,746 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 22:27:41,071 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:27:41,844 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 22:27:42,145 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 22:27:42,488 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:27:44,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:27:44,028 INFO L93 Difference]: Finished difference Result 695 states and 871 transitions. [2020-09-24 22:27:44,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-24 22:27:44,035 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 148 [2020-09-24 22:27:44,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:27:44,068 INFO L225 Difference]: With dead ends: 695 [2020-09-24 22:27:44,068 INFO L226 Difference]: Without dead ends: 468 [2020-09-24 22:27:44,076 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=131, Invalid=421, Unknown=0, NotChecked=0, Total=552 [2020-09-24 22:27:44,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2020-09-24 22:27:44,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 412. [2020-09-24 22:27:44,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2020-09-24 22:27:44,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 469 transitions. [2020-09-24 22:27:44,238 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 469 transitions. Word has length 148 [2020-09-24 22:27:44,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:27:44,239 INFO L479 AbstractCegarLoop]: Abstraction has 412 states and 469 transitions. [2020-09-24 22:27:44,240 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 22:27:44,240 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 469 transitions. [2020-09-24 22:27:44,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-09-24 22:27:44,246 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:27:44,247 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:27:44,247 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 22:27:44,247 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:27:44,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:27:44,248 INFO L82 PathProgramCache]: Analyzing trace with hash -1737480806, now seen corresponding path program 1 times [2020-09-24 22:27:44,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:27:44,249 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1693206743] [2020-09-24 22:27:44,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:27:44,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:44,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:44,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:44,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:45,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:49,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:49,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 268 [2020-09-24 22:27:49,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 22:27:49,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-09-24 22:27:49,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:49,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:27:49,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-09-24 22:27:49,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:27:49,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:49,626 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:27:49,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:27:49,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:49,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:49,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:49,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 22:27:49,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:49,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-24 22:27:49,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:49,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:49,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:49,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:49,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:49,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 22:27:49,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:49,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:49,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:49,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:27:49,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:49,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:27:49,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:49,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:49,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:49,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:49,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:49,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 22:27:49,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:49,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:49,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:49,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:27:49,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:49,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:27:49,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:49,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:49,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:49,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:49,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:49,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 22:27:49,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:49,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:49,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:49,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:27:49,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:49,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:27:49,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:49,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:49,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:49,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:49,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:49,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 22:27:49,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:49,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:49,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:49,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:27:49,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:49,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:27:49,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:49,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:49,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:49,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:49,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:27:49,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 22:27:49,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:49,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:49,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:49,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:27:49,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:49,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:27:49,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:49,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:49,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:49,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:49,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:27:49,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 22:27:49,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:49,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:49,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:49,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-24 22:27:49,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:49,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:27:49,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:49,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:49,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:49,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:49,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:27:49,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:27:49,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:49,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:49,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:49,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 22:27:49,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:49,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:27:49,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:49,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:49,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:49,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:49,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:27:49,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:27:49,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:49,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:49,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:49,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:27:49,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:49,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:27:49,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:49,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:49,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:49,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:49,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:27:49,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 22:27:49,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:49,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:49,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:49,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 22:27:49,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:49,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-24 22:27:49,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:49,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:27:49,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 22:27:49,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:27:49,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:27:49,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:27:49,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:49,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:50,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:50,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 22:27:50,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:50,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-24 22:27:50,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:50,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:27:50,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 22:27:50,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:27:50,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:27:50,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:27:50,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:50,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:50,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:50,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 22:27:50,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:50,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-24 22:27:50,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:50,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:27:50,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 22:27:50,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:27:50,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:27:50,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:27:50,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:50,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:50,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:50,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:27:50,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:50,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-24 22:27:50,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:50,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:27:50,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:50,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 22:27:50,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:50,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:27:50,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:50,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:50,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:50,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:27:50,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:50,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:27:50,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:50,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:50,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:50,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:50,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:27:50,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 22:27:50,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:50,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:50,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:50,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:27:50,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:50,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:27:50,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:50,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:50,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 22:27:50,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:50,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 22:27:50,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-09-24 22:27:50,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:50,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:50,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:50,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:27:50,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:50,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:27:50,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:50,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:50,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:27:50,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:50,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:50,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-24 22:27:50,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:50,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:50,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:50,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:27:50,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:50,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:27:50,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:50,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:50,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:27:50,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:50,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:50,409 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-24 22:27:50,410 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1693206743] [2020-09-24 22:27:50,410 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 22:27:50,410 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-24 22:27:50,411 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435588251] [2020-09-24 22:27:50,414 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 22:27:50,415 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:27:50,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 22:27:50,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-09-24 22:27:50,416 INFO L87 Difference]: Start difference. First operand 412 states and 469 transitions. Second operand 11 states. [2020-09-24 22:27:52,124 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:27:52,439 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 22:27:52,762 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 22:27:53,088 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:27:53,418 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 22:27:53,725 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:27:55,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:27:55,089 INFO L93 Difference]: Finished difference Result 820 states and 1010 transitions. [2020-09-24 22:27:55,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 22:27:55,093 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 217 [2020-09-24 22:27:55,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:27:55,103 INFO L225 Difference]: With dead ends: 820 [2020-09-24 22:27:55,104 INFO L226 Difference]: Without dead ends: 523 [2020-09-24 22:27:55,107 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=87, Invalid=219, Unknown=0, NotChecked=0, Total=306 [2020-09-24 22:27:55,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2020-09-24 22:27:55,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 419. [2020-09-24 22:27:55,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 419 states. [2020-09-24 22:27:55,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 476 transitions. [2020-09-24 22:27:55,180 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 476 transitions. Word has length 217 [2020-09-24 22:27:55,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:27:55,181 INFO L479 AbstractCegarLoop]: Abstraction has 419 states and 476 transitions. [2020-09-24 22:27:55,181 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 22:27:55,181 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 476 transitions. [2020-09-24 22:27:55,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-09-24 22:27:55,185 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:27:55,185 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:27:55,186 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 22:27:55,186 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:27:55,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:27:55,186 INFO L82 PathProgramCache]: Analyzing trace with hash -352504546, now seen corresponding path program 1 times [2020-09-24 22:27:55,187 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:27:55,187 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [295166067] [2020-09-24 22:27:55,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:27:55,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:55,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:55,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:56,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:57,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:00,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:00,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 237 [2020-09-24 22:28:00,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 22:28:00,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-24 22:28:00,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:00,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:28:00,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 174 [2020-09-24 22:28:00,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:28:00,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:00,719 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:28:00,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:28:00,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:00,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:00,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:00,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 22:28:00,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:00,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-24 22:28:00,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:00,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:00,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:00,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:00,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:28:00,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 22:28:00,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:00,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:00,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:00,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:28:00,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:00,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:28:00,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:00,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:00,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:00,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:00,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:28:00,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 22:28:00,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:00,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:00,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:00,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:28:00,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:00,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:28:00,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:00,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:00,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:00,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:00,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:28:00,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 22:28:00,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:00,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:00,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:00,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:28:00,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:00,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:28:00,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:00,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:00,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:00,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:00,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:28:00,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 22:28:00,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:00,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:00,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:00,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:28:00,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:00,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:28:00,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:00,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:00,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:00,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:00,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:28:00,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 22:28:00,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:00,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:00,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:00,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:28:00,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:00,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:28:00,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:00,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:00,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:00,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:00,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:28:00,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-24 22:28:00,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:00,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:01,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:01,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 22:28:01,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:01,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-24 22:28:01,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:01,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:28:01,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-24 22:28:01,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:28:01,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:28:01,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:28:01,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:01,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:01,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:01,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 22:28:01,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:01,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-09-24 22:28:01,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:01,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:28:01,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 22:28:01,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:28:01,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:28:01,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:28:01,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:01,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:01,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:01,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 22:28:01,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:01,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-24 22:28:01,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:01,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:28:01,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 22:28:01,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:28:01,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:28:01,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:28:01,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:01,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:01,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:01,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:28:01,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:01,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-24 22:28:01,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:01,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:28:01,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 22:28:01,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:28:01,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:28:01,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:28:01,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:01,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:01,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:01,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:28:01,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:01,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 22:28:01,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:01,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 22:28:01,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:01,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:28:01,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:28:01,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 22:28:01,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:01,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:01,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:01,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:28:01,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:01,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:28:01,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:01,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:01,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 22:28:01,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:01,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:28:01,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-09-24 22:28:01,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:01,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:01,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:01,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:28:01,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:01,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:28:01,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:01,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:01,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:28:01,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:01,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:28:01,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-09-24 22:28:01,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:01,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:01,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:01,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:28:01,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:01,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:28:01,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:01,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:01,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:28:01,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:01,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:28:01,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:28:01,437 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [295166067] [2020-09-24 22:28:01,437 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:28:01,437 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 22:28:01,438 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447238507] [2020-09-24 22:28:01,440 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 22:28:01,440 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:28:01,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 22:28:01,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-24 22:28:01,441 INFO L87 Difference]: Start difference. First operand 419 states and 476 transitions. Second operand 9 states. [2020-09-24 22:28:02,873 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:28:03,143 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 22:28:03,511 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:28:03,842 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 22:28:04,146 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:28:05,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:28:05,513 INFO L93 Difference]: Finished difference Result 827 states and 1036 transitions. [2020-09-24 22:28:05,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 22:28:05,517 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 192 [2020-09-24 22:28:05,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:28:05,526 INFO L225 Difference]: With dead ends: 827 [2020-09-24 22:28:05,526 INFO L226 Difference]: Without dead ends: 523 [2020-09-24 22:28:05,528 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-24 22:28:05,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2020-09-24 22:28:05,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 425. [2020-09-24 22:28:05,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 425 states. [2020-09-24 22:28:05,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 482 transitions. [2020-09-24 22:28:05,597 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 482 transitions. Word has length 192 [2020-09-24 22:28:05,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:28:05,598 INFO L479 AbstractCegarLoop]: Abstraction has 425 states and 482 transitions. [2020-09-24 22:28:05,598 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 22:28:05,599 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 482 transitions. [2020-09-24 22:28:05,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-09-24 22:28:05,602 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:28:05,602 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:28:05,602 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 22:28:05,603 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:28:05,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:28:05,603 INFO L82 PathProgramCache]: Analyzing trace with hash 1454814699, now seen corresponding path program 1 times [2020-09-24 22:28:05,603 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:28:05,603 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [568754256] [2020-09-24 22:28:05,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:28:05,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:05,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:06,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:07,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:10,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:10,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-09-24 22:28:10,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 22:28:10,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-24 22:28:10,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:10,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 22:28:10,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-24 22:28:10,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-09-24 22:28:10,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:11,004 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:28:11,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:28:11,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:11,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:11,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:11,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 22:28:11,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:11,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-24 22:28:11,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:11,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:11,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:11,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:11,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:28:11,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 22:28:11,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:11,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:11,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:11,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:28:11,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:11,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:28:11,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:11,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:11,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:11,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:11,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:11,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 22:28:11,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:11,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:11,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:11,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:28:11,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:11,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:28:11,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:11,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:11,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:11,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:11,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:11,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 22:28:11,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:11,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:11,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:11,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:28:11,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:11,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:28:11,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:11,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:11,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:11,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:11,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:11,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 22:28:11,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:11,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:11,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:11,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:28:11,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:11,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:28:11,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:11,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:11,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:11,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:11,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:11,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 22:28:11,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:11,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:11,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:11,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:28:11,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:11,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:28:11,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:11,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:28:11,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:11,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 22:28:11,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:11,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 22:28:11,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:11,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:11,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:11,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:28:11,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:11,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:28:11,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:11,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:28:11,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:11,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 22:28:11,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:11,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 22:28:11,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:11,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:11,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:11,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 22:28:11,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:11,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-24 22:28:11,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:11,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:28:11,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:11,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-24 22:28:11,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:11,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:28:11,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:11,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:11,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:11,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 22:28:11,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:11,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 22:28:11,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:11,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:11,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:11,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:11,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:11,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:28:11,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:11,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:11,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:11,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 22:28:11,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:11,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 22:28:11,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:11,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:11,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:11,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:11,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:11,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:28:11,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:11,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:11,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:11,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:28:11,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:11,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 22:28:11,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:11,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:11,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:11,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:11,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:11,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:28:11,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:11,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:11,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:11,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:28:11,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:11,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:28:11,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:11,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:11,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:11,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:11,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:11,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 22:28:11,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:11,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:11,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:11,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:28:11,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:11,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:28:11,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:11,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:11,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:11,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:11,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:28:11,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-24 22:28:11,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:11,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:11,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:11,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:28:11,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:11,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:28:11,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:11,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:28:11,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:11,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:28:11,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:11,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-24 22:28:11,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:11,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:11,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:11,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:28:11,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:11,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:28:11,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:11,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:28:11,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:11,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:28:11,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:28:11,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:28:11,426 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [568754256] [2020-09-24 22:28:11,426 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:28:11,426 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 22:28:11,426 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187546481] [2020-09-24 22:28:11,427 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 22:28:11,427 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:28:11,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 22:28:11,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-24 22:28:11,428 INFO L87 Difference]: Start difference. First operand 425 states and 482 transitions. Second operand 7 states. [2020-09-24 22:28:12,016 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:28:15,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:28:15,850 INFO L93 Difference]: Finished difference Result 1025 states and 1383 transitions. [2020-09-24 22:28:15,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 22:28:15,856 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 205 [2020-09-24 22:28:15,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:28:15,865 INFO L225 Difference]: With dead ends: 1025 [2020-09-24 22:28:15,865 INFO L226 Difference]: Without dead ends: 1022 [2020-09-24 22:28:15,866 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 36 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=100, Invalid=206, Unknown=0, NotChecked=0, Total=306 [2020-09-24 22:28:15,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1022 states. [2020-09-24 22:28:15,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1022 to 689. [2020-09-24 22:28:15,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 689 states. [2020-09-24 22:28:15,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 808 transitions. [2020-09-24 22:28:15,989 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 808 transitions. Word has length 205 [2020-09-24 22:28:15,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:28:15,990 INFO L479 AbstractCegarLoop]: Abstraction has 689 states and 808 transitions. [2020-09-24 22:28:15,990 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 22:28:15,990 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 808 transitions. [2020-09-24 22:28:15,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-09-24 22:28:15,995 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:28:15,996 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:28:15,996 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 22:28:15,997 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:28:15,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:28:15,997 INFO L82 PathProgramCache]: Analyzing trace with hash -885002802, now seen corresponding path program 1 times [2020-09-24 22:28:15,997 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:28:15,998 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1309286763] [2020-09-24 22:28:15,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:28:16,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:16,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:16,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking...