/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product59.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 04:14:51,502 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:14:51,506 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:14:51,549 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:14:51,550 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:14:51,557 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:14:51,559 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:14:51,563 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:14:51,566 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:14:51,569 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:14:51,570 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:14:51,571 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:14:51,571 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:14:51,574 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:14:51,576 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:14:51,578 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:14:51,580 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:14:51,581 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:14:51,582 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:14:51,590 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:14:51,593 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:14:51,594 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:14:51,595 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:14:51,596 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:14:51,608 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:14:51,609 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:14:51,609 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:14:51,618 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:14:51,618 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:14:51,619 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:14:51,619 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:14:51,622 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:14:51,623 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:14:51,625 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:14:51,626 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:14:51,627 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:14:51,628 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:14:51,628 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:14:51,628 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:14:51,629 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:14:51,630 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:14:51,631 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 04:14:51,677 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:14:51,677 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:14:51,680 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:14:51,680 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:14:51,680 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:14:51,680 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:14:51,681 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:14:51,681 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:14:51,681 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:14:51,681 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:14:51,682 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:14:51,683 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:14:51,683 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:14:51,683 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:14:51,684 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:14:51,684 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:14:51,684 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:14:51,684 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:14:51,684 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:14:51,685 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:14:51,685 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:14:51,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:14:51,685 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:14:51,685 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:14:51,686 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:14:51,686 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:14:51,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:14:51,686 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:14:51,686 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:14:51,686 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=WIDESTAMONGSMALL;tolerance=0.2;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=WIDESTAMONGSMALL;tolerance=0.2;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=WIDESTAMONGSMALL;tolerance=0.2;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=WIDESTAMONGSMALL;tolerance=0.2;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=WIDESTAMONGSMALL;tolerance=0.2;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=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; [2020-09-25 04:14:52,129 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:14:52,157 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:14:52,162 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:14:52,164 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:14:52,164 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:14:52,166 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product59.cil.c [2020-09-25 04:14:52,265 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/931c9cda8/875cfc0b50de4b89900b57477eb2c755/FLAG960e159ba [2020-09-25 04:14:52,863 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:14:52,864 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product59.cil.c [2020-09-25 04:14:52,878 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/931c9cda8/875cfc0b50de4b89900b57477eb2c755/FLAG960e159ba [2020-09-25 04:14:53,129 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/931c9cda8/875cfc0b50de4b89900b57477eb2c755 [2020-09-25 04:14:53,144 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:14:53,152 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:14:53,155 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:14:53,155 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:14:53,160 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:14:53,161 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:14:53" (1/1) ... [2020-09-25 04:14:53,166 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@538d8bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:14:53, skipping insertion in model container [2020-09-25 04:14:53,166 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:14:53" (1/1) ... [2020-09-25 04:14:53,176 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:14:53,253 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:14:53,738 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:14:53,757 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:14:53,869 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:14:53,914 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:14:53,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:14:53 WrapperNode [2020-09-25 04:14:53,914 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:14:53,915 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:14:53,915 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:14:53,916 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:14:53,930 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:14:53" (1/1) ... [2020-09-25 04:14:53,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:14:53" (1/1) ... [2020-09-25 04:14:53,951 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:14:53" (1/1) ... [2020-09-25 04:14:53,952 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:14:53" (1/1) ... [2020-09-25 04:14:53,986 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:14:53" (1/1) ... [2020-09-25 04:14:53,999 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:14:53" (1/1) ... [2020-09-25 04:14:54,004 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:14:53" (1/1) ... [2020-09-25 04:14:54,013 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:14:54,013 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:14:54,014 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:14:54,014 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:14:54,015 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:14:53" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:14:54,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:14:54,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:14:54,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 04:14:54,092 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 04:14:54,092 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 04:14:54,092 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 04:14:54,093 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 04:14:54,093 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 04:14:54,093 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 04:14:54,093 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 04:14:54,093 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 04:14:54,094 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 04:14:54,094 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 04:14:54,094 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 04:14:54,094 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 04:14:54,094 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 04:14:54,095 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 04:14:54,095 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 04:14:54,095 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 04:14:54,095 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 04:14:54,095 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 04:14:54,096 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 04:14:54,096 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 04:14:54,096 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 04:14:54,096 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 04:14:54,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 04:14:54,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 04:14:54,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 04:14:54,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 04:14:54,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 04:14:54,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 04:14:54,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 04:14:54,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-25 04:14:54,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-25 04:14:54,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-25 04:14:54,098 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 04:14:54,098 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 04:14:54,098 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 04:14:54,099 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 04:14:54,099 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:14:54,099 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 04:14:54,099 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 04:14:54,099 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 04:14:54,099 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 04:14:54,100 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:14:54,100 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 04:14:54,100 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 04:14:54,100 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 04:14:54,100 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 04:14:54,100 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 04:14:54,101 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 04:14:54,101 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 04:14:54,101 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 04:14:54,101 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 04:14:54,101 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 04:14:54,101 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 04:14:54,102 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 04:14:54,102 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 04:14:54,102 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 04:14:54,102 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 04:14:54,102 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 04:14:54,102 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 04:14:54,102 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 04:14:54,103 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 04:14:54,103 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-25 04:14:54,103 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-25 04:14:54,103 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 04:14:54,103 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 04:14:54,103 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 04:14:54,103 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 04:14:54,104 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 04:14:54,104 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 04:14:54,104 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 04:14:54,104 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 04:14:54,104 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 04:14:54,104 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 04:14:54,105 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 04:14:54,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 04:14:54,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 04:14:54,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 04:14:54,105 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 04:14:54,105 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 04:14:54,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 04:14:54,106 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 04:14:54,106 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 04:14:54,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 04:14:54,106 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 04:14:54,106 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 04:14:54,107 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 04:14:54,107 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 04:14:54,107 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-25 04:14:54,107 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 04:14:54,107 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 04:14:54,107 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 04:14:54,107 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 04:14:54,108 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 04:14:54,108 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 04:14:54,108 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:14:54,108 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 04:14:54,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:14:54,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 04:14:54,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:14:55,240 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:14:55,240 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 04:14:55,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:14:55 BoogieIcfgContainer [2020-09-25 04:14:55,256 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:14:55,258 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:14:55,258 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:14:55,262 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:14:55,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:14:53" (1/3) ... [2020-09-25 04:14:55,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fa379a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:14:55, skipping insertion in model container [2020-09-25 04:14:55,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:14:53" (2/3) ... [2020-09-25 04:14:55,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fa379a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:14:55, skipping insertion in model container [2020-09-25 04:14:55,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:14:55" (3/3) ... [2020-09-25 04:14:55,268 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product59.cil.c [2020-09-25 04:14:55,280 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:14:55,293 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 04:14:55,314 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 04:14:55,343 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:14:55,344 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:14:55,344 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:14:55,344 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:14:55,344 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:14:55,344 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:14:55,344 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:14:55,345 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:14:55,372 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states. [2020-09-25 04:14:55,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 04:14:55,390 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:14:55,392 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:14:55,393 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:14:55,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:14:55,400 INFO L82 PathProgramCache]: Analyzing trace with hash 361389502, now seen corresponding path program 1 times [2020-09-25 04:14:55,411 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:14:55,411 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1327879869] [2020-09-25 04:14:55,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:14:55,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:55,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:56,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:57,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:57,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:00,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:00,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:00,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-25 04:15:00,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:15:00,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 04:15:00,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:00,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:00,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:00,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 04:15:00,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:00,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 04:15:01,280 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:15:01,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:15:01,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:01,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:01,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:01,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 04:15:01,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:01,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-25 04:15:01,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:01,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:01,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:01,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:01,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:01,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:01,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 04:15:01,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:01,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:01,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:01,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:15:01,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:01,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:15:01,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:01,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:01,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:01,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:01,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:01,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:01,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 04:15:01,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:01,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:01,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:01,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:15:01,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:01,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:15:01,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:01,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:01,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:01,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:01,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:01,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:01,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 04:15:01,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:01,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:01,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:01,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:15:01,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:01,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:15:01,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:01,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:01,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:01,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:01,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:01,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:01,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 04:15:01,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:01,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:01,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:01,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:15:01,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:01,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:15:01,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:01,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:01,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:01,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:01,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:01,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:01,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 04:15:01,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:01,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:01,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:01,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:15:01,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:01,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:15:01,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:01,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:01,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:01,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:01,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:01,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:01,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 04:15:01,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:01,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:01,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:01,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 04:15:01,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:01,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:15:01,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:01,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:01,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:01,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 04:15:01,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:01,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:01,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:15:01,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:01,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:01,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:01,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:15:01,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:01,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:15:01,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:01,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:01,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:01,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:01,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:01,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:01,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 04:15:01,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:01,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:01,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:01,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:15:01,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:01,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:15:01,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:01,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:01,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:01,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:15:01,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:01,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:01,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 04:15:01,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:01,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:01,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:01,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:15:01,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:01,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:15:01,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:01,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:01,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:01,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:15:01,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:01,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:01,622 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 04:15:01,623 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1327879869] [2020-09-25 04:15:01,627 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:15:01,627 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 04:15:01,629 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151476444] [2020-09-25 04:15:01,638 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 04:15:01,639 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:15:01,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 04:15:01,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:15:01,663 INFO L87 Difference]: Start difference. First operand 353 states. Second operand 4 states. [2020-09-25 04:15:03,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:15:03,475 INFO L93 Difference]: Finished difference Result 568 states and 662 transitions. [2020-09-25 04:15:03,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 04:15:03,478 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-09-25 04:15:03,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:15:03,499 INFO L225 Difference]: With dead ends: 568 [2020-09-25 04:15:03,500 INFO L226 Difference]: Without dead ends: 351 [2020-09-25 04:15:03,506 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:15:03,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2020-09-25 04:15:03,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 302. [2020-09-25 04:15:03,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 302 states. [2020-09-25 04:15:03,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 329 transitions. [2020-09-25 04:15:03,631 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 329 transitions. Word has length 160 [2020-09-25 04:15:03,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:15:03,634 INFO L479 AbstractCegarLoop]: Abstraction has 302 states and 329 transitions. [2020-09-25 04:15:03,634 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 04:15:03,634 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 329 transitions. [2020-09-25 04:15:03,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 04:15:03,645 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:15:03,646 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:15:03,646 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:15:03,646 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:15:03,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:15:03,647 INFO L82 PathProgramCache]: Analyzing trace with hash 424052501, now seen corresponding path program 1 times [2020-09-25 04:15:03,647 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:15:03,648 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1963398876] [2020-09-25 04:15:03,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:15:03,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:03,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:03,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:05,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:06,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:07,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:08,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:08,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-25 04:15:08,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:15:08,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 04:15:08,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:08,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:08,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:15:08,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 04:15:08,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 04:15:08,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:09,093 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:15:09,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:15:09,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:09,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:09,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:09,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 04:15:09,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:09,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-25 04:15:09,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:09,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:09,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:09,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:09,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:09,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:09,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 04:15:09,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:09,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:09,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:09,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:15:09,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:09,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:15:09,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:09,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:09,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:09,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:09,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:09,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:09,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 04:15:09,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:09,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:09,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:09,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:15:09,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:09,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:15:09,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:09,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:09,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:09,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:09,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:09,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:09,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 04:15:09,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:09,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:09,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:09,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:15:09,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:09,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:15:09,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:09,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:09,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:09,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:09,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:09,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 04:15:09,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 04:15:09,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:09,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:09,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:09,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:15:09,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:09,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:15:09,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:09,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:09,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:09,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:09,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:09,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 04:15:09,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 04:15:09,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:09,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:09,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:09,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:15:09,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:09,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:15:09,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:09,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:09,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:09,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:09,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:09,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:09,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 04:15:09,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:09,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:09,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:09,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 04:15:09,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:09,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:15:09,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:09,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:09,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:09,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 04:15:09,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:09,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:09,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:15:09,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:09,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:09,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:09,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:15:09,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:09,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:15:09,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:09,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:09,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:09,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:09,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:09,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:09,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 04:15:09,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:09,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:09,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:09,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:15:09,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:09,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:15:09,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:09,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:09,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:09,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:15:09,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:09,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:09,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 04:15:09,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:09,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:09,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:09,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:15:09,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:09,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:15:09,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:09,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:09,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:09,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:15:09,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:09,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:09,364 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 04:15:09,365 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1963398876] [2020-09-25 04:15:09,365 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:15:09,365 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 04:15:09,365 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025281231] [2020-09-25 04:15:09,368 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 04:15:09,368 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:15:09,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 04:15:09,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:15:09,369 INFO L87 Difference]: Start difference. First operand 302 states and 329 transitions. Second operand 5 states. [2020-09-25 04:15:10,046 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:15:11,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:15:11,418 INFO L93 Difference]: Finished difference Result 491 states and 550 transitions. [2020-09-25 04:15:11,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 04:15:11,419 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-09-25 04:15:11,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:15:11,424 INFO L225 Difference]: With dead ends: 491 [2020-09-25 04:15:11,424 INFO L226 Difference]: Without dead ends: 340 [2020-09-25 04:15:11,426 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:15:11,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-09-25 04:15:11,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 292. [2020-09-25 04:15:11,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2020-09-25 04:15:11,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 316 transitions. [2020-09-25 04:15:11,518 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 316 transitions. Word has length 161 [2020-09-25 04:15:11,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:15:11,522 INFO L479 AbstractCegarLoop]: Abstraction has 292 states and 316 transitions. [2020-09-25 04:15:11,522 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 04:15:11,522 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 316 transitions. [2020-09-25 04:15:11,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-25 04:15:11,525 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:15:11,525 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:15:11,525 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:15:11,525 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:15:11,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:15:11,526 INFO L82 PathProgramCache]: Analyzing trace with hash 1113060057, now seen corresponding path program 1 times [2020-09-25 04:15:11,526 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:15:11,526 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [805658192] [2020-09-25 04:15:11,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:15:11,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:11,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:12,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:12,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:13,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:16,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:16,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-25 04:15:16,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:15:16,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-09-25 04:15:16,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:16,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:16,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:15:16,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-09-25 04:15:16,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 04:15:16,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:16,987 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:15:16,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:15:16,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:17,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:17,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:17,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 04:15:17,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:17,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-09-25 04:15:17,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:17,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:17,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:17,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:17,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:17,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:17,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 04:15:17,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:17,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:17,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:17,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:15:17,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:17,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:15:17,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:17,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:17,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:17,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:17,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:17,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:17,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 04:15:17,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:17,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:17,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:17,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:15:17,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:17,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:15:17,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:17,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:17,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:17,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:17,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:17,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:17,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 04:15:17,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:17,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:17,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:17,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:15:17,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:17,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:15:17,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:17,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:17,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:17,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:17,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:17,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:17,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 04:15:17,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:17,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:17,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:17,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:15:17,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:17,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:15:17,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:17,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:17,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:17,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:17,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:17,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:17,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 04:15:17,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:17,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:17,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:17,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:15:17,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:17,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:15:17,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:17,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:17,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:17,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:17,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:17,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:17,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 04:15:17,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:17,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:17,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:17,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 04:15:17,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:17,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:15:17,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:17,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:17,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:17,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:17,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:17,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:17,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:15:17,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:17,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:17,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:17,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:15:17,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:17,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:15:17,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:17,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:17,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:17,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:17,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:17,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:17,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 04:15:17,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:17,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:17,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:17,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:15:17,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:17,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:15:17,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:17,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:17,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:15:17,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:17,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:15:17,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:17,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 04:15:17,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:17,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:17,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:17,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:15:17,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:17,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 04:15:17,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:17,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:17,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:15:17,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:17,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:15:17,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:17,391 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 04:15:17,392 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [805658192] [2020-09-25 04:15:17,392 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:15:17,393 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 04:15:17,393 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615946161] [2020-09-25 04:15:17,394 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 04:15:17,395 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:15:17,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 04:15:17,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 04:15:17,398 INFO L87 Difference]: Start difference. First operand 292 states and 316 transitions. Second operand 9 states. [2020-09-25 04:15:18,200 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 04:15:19,110 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:15:19,449 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 04:15:20,703 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 04:15:21,003 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:15:21,317 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:15:21,935 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:15:22,254 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 04:15:22,568 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:15:23,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:15:23,157 INFO L93 Difference]: Finished difference Result 604 states and 699 transitions. [2020-09-25 04:15:23,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 04:15:23,158 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 170 [2020-09-25 04:15:23,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:15:23,162 INFO L225 Difference]: With dead ends: 604 [2020-09-25 04:15:23,163 INFO L226 Difference]: Without dead ends: 427 [2020-09-25 04:15:23,165 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 04:15:23,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2020-09-25 04:15:23,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 379. [2020-09-25 04:15:23,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 379 states. [2020-09-25 04:15:23,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 417 transitions. [2020-09-25 04:15:23,215 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 417 transitions. Word has length 170 [2020-09-25 04:15:23,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:15:23,216 INFO L479 AbstractCegarLoop]: Abstraction has 379 states and 417 transitions. [2020-09-25 04:15:23,216 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 04:15:23,216 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 417 transitions. [2020-09-25 04:15:23,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-09-25 04:15:23,219 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:15:23,220 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:15:23,220 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 04:15:23,220 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:15:23,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:15:23,221 INFO L82 PathProgramCache]: Analyzing trace with hash -585097851, now seen corresponding path program 1 times [2020-09-25 04:15:23,221 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:15:23,221 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [432225503] [2020-09-25 04:15:23,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:15:23,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:23,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:23,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:23,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 281 [2020-09-25 04:15:23,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:23,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 695 [2020-09-25 04:15:23,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:23,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:23,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:15:23,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 192 [2020-09-25 04:15:23,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:15:23,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:24,254 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:15:24,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:15:24,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:24,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:24,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:24,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 04:15:24,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:24,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-25 04:15:24,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:24,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:24,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:24,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:24,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:24,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:24,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 04:15:24,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:24,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:24,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:24,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:15:24,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:24,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:15:24,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:24,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:24,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:24,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:24,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:24,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:15:24,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 04:15:24,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:24,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:24,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:24,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:15:24,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:24,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:15:24,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:24,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:24,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:24,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:24,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:24,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:15:24,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 04:15:24,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:24,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:24,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:24,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:15:24,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:24,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:15:24,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:24,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:24,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:24,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:24,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:24,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:15:24,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 04:15:24,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:24,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:24,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:24,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:15:24,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:24,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:15:24,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:24,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:24,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:24,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:24,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:24,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:24,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 04:15:24,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:24,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:24,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:24,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:15:24,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:24,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:15:24,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:24,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:24,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:24,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:24,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:24,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:24,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 04:15:24,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:24,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:24,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:24,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 04:15:24,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:24,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:15:24,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:24,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:24,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:24,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:24,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:24,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:24,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:15:24,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:24,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:24,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:24,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:15:24,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:24,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:15:24,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:24,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:24,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:24,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:24,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:24,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:24,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 04:15:24,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:24,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:24,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:24,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 04:15:24,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:24,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-09-25 04:15:24,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:24,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:24,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:15:24,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 04:15:24,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:15:24,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:15:24,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:15:24,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:24,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:24,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:24,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 04:15:24,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:24,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-09-25 04:15:24,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:24,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:24,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:15:24,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 04:15:24,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:15:24,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:24,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:15:24,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:24,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:24,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:24,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 04:15:24,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:24,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 04:15:24,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:24,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:24,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:15:24,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 04:15:24,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:15:24,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:24,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:15:24,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:24,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:24,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:24,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:15:24,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:24,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:15:24,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:24,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:24,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:15:24,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:24,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:15:24,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:24,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 04:15:24,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:24,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:24,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:24,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 04:15:24,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:24,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 04:15:24,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:24,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:24,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:24,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 04:15:24,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:24,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:24,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 04:15:24,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:24,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:24,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:24,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 04:15:24,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:24,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:15:24,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:24,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:24,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:24,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:24,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:24,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:24,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 04:15:24,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:24,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:24,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:24,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:15:24,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:24,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:15:24,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:24,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:24,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:24,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:24,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:24,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:24,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 04:15:24,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:24,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:24,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:24,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:15:24,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:24,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:15:24,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:24,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:24,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:24,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:24,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:24,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:24,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2020-09-25 04:15:24,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:24,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:24,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:24,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:15:24,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:24,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:15:24,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:24,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:24,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:24,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:15:24,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:24,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:24,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-09-25 04:15:24,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:24,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:24,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:24,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:15:24,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:24,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:15:24,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:24,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:24,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:24,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:15:24,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:24,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:24,927 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 04:15:24,928 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [432225503] [2020-09-25 04:15:24,928 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:15:24,928 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 04:15:24,929 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332993755] [2020-09-25 04:15:24,931 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 04:15:24,931 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:15:24,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 04:15:24,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 04:15:24,932 INFO L87 Difference]: Start difference. First operand 379 states and 417 transitions. Second operand 9 states. [2020-09-25 04:15:26,401 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:15:26,725 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 04:15:27,052 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:15:27,403 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 04:15:27,702 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:15:28,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:15:28,790 INFO L93 Difference]: Finished difference Result 728 states and 853 transitions. [2020-09-25 04:15:28,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 04:15:28,793 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 230 [2020-09-25 04:15:28,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:15:28,799 INFO L225 Difference]: With dead ends: 728 [2020-09-25 04:15:28,800 INFO L226 Difference]: Without dead ends: 464 [2020-09-25 04:15:28,801 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-25 04:15:28,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2020-09-25 04:15:28,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 394. [2020-09-25 04:15:28,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-09-25 04:15:28,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 434 transitions. [2020-09-25 04:15:28,848 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 434 transitions. Word has length 230 [2020-09-25 04:15:28,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:15:28,849 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 434 transitions. [2020-09-25 04:15:28,849 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 04:15:28,849 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 434 transitions. [2020-09-25 04:15:28,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-09-25 04:15:28,853 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:15:28,853 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:15:28,853 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 04:15:28,854 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:15:28,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:15:28,854 INFO L82 PathProgramCache]: Analyzing trace with hash -1252844251, now seen corresponding path program 1 times [2020-09-25 04:15:28,854 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:15:28,855 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1739984737] [2020-09-25 04:15:28,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:15:28,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:28,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:29,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:29,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 281 [2020-09-25 04:15:29,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:29,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 822 [2020-09-25 04:15:29,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:29,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:29,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:15:29,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 200 [2020-09-25 04:15:29,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:15:29,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:15:29,999 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:15:30,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:15:30,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:30,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:30,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:30,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 04:15:30,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:30,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-25 04:15:30,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:30,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:30,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:30,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:30,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:30,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:30,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 04:15:30,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:30,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:30,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:30,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:15:30,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:30,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:15:30,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:30,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:30,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:30,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:30,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:30,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:30,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 04:15:30,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:30,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:30,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:30,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:15:30,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:30,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:15:30,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:30,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:30,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:30,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:30,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:30,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:15:30,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 04:15:30,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:30,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:30,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:30,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:15:30,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:30,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:15:30,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:30,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:30,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:30,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:30,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:30,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:30,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 04:15:30,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:30,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:30,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:30,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:15:30,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:30,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:15:30,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:30,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:30,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:30,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:30,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:30,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:30,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 04:15:30,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:30,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:30,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:30,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:15:30,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:30,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:15:30,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:30,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:30,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:30,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:30,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:30,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:30,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 04:15:30,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:30,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:30,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:30,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 04:15:30,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:30,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:15:30,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:30,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:30,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:30,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:30,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:30,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:30,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:15:30,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:30,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:30,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:30,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:15:30,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:30,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:15:30,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:30,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:30,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:30,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:30,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:30,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:30,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 04:15:30,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:30,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:30,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:30,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 04:15:30,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:30,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-25 04:15:30,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:30,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:30,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:15:30,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 04:15:30,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:15:30,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:30,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:15:30,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:30,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:30,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:30,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 04:15:30,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:30,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 04:15:30,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:30,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:30,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:15:30,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 04:15:30,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:15:30,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:30,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:15:30,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:30,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:30,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:30,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 04:15:30,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:30,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 04:15:30,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:30,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:30,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:15:30,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:30,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 04:15:30,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:30,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:15:30,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:30,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:30,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:30,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:15:30,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:30,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:15:30,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:30,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:30,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:30,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:30,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:30,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:30,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 04:15:30,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:30,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:30,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:30,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 04:15:30,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:30,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 04:15:30,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:30,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:30,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:30,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 04:15:30,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:30,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:30,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 04:15:30,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:30,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:30,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:30,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 04:15:30,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:30,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:15:30,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:30,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:30,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:30,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:30,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:30,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:30,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 04:15:30,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:30,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:30,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:30,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:15:30,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:30,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:15:30,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:30,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:30,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:30,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:30,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:30,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:30,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 04:15:30,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:30,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:30,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:30,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:15:30,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:30,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:15:30,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:30,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:30,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:30,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:30,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:30,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:30,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2020-09-25 04:15:30,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:30,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:30,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:30,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:15:30,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:30,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:15:30,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:30,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:30,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:30,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:15:30,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:30,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:30,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-09-25 04:15:30,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:30,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:30,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:30,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:15:30,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:30,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:15:30,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:30,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:30,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:30,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:15:30,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:30,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:15:30,718 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 04:15:30,718 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1739984737] [2020-09-25 04:15:30,718 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:15:30,719 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 04:15:30,719 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231684717] [2020-09-25 04:15:30,719 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 04:15:30,720 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:15:30,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 04:15:30,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 04:15:30,720 INFO L87 Difference]: Start difference. First operand 394 states and 434 transitions. Second operand 10 states. [2020-09-25 04:15:32,391 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:15:32,698 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 04:15:33,020 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 04:15:33,382 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:15:33,738 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 04:15:34,052 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 04:15:35,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:15:35,225 INFO L93 Difference]: Finished difference Result 748 states and 875 transitions. [2020-09-25 04:15:35,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 04:15:35,231 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 230 [2020-09-25 04:15:35,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:15:35,234 INFO L225 Difference]: With dead ends: 748 [2020-09-25 04:15:35,235 INFO L226 Difference]: Without dead ends: 469 [2020-09-25 04:15:35,236 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-25 04:15:35,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2020-09-25 04:15:35,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 402. [2020-09-25 04:15:35,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2020-09-25 04:15:35,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 442 transitions. [2020-09-25 04:15:35,282 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 442 transitions. Word has length 230 [2020-09-25 04:15:35,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:15:35,283 INFO L479 AbstractCegarLoop]: Abstraction has 402 states and 442 transitions. [2020-09-25 04:15:35,283 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 04:15:35,283 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 442 transitions. [2020-09-25 04:15:35,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-09-25 04:15:35,285 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:15:35,285 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:15:35,286 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 04:15:35,286 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:15:35,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:15:35,286 INFO L82 PathProgramCache]: Analyzing trace with hash 142007426, now seen corresponding path program 1 times [2020-09-25 04:15:35,287 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:15:35,287 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1497530654] [2020-09-25 04:15:35,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:15:35,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:35,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:36,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:36,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 281 [2020-09-25 04:15:36,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:36,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1352 [2020-09-25 04:15:36,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:36,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:36,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 04:15:36,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 04:15:36,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-09-25 04:15:36,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:15:37,001 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:15:37,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:15:37,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:37,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:37,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:37,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 04:15:37,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:37,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 212 [2020-09-25 04:15:37,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:37,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:37,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:15:37,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:37,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 04:15:37,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:37,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 04:15:37,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:37,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:37,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:37,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:15:37,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:37,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:15:37,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:37,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:37,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:15:37,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:37,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:15:37,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:15:37,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 04:15:37,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:37,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:37,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:37,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:15:37,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:37,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:15:37,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:37,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:37,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:15:37,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:37,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:15:37,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:15:37,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 04:15:37,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:37,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:37,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:37,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:15:37,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:37,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:15:37,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:37,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:37,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:15:37,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:37,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:15:37,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:15:37,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 04:15:37,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:37,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:37,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:37,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:15:37,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:37,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:15:37,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:37,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:37,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:15:37,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:37,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:15:37,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:15:37,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 04:15:37,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:37,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:37,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:37,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:15:37,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:37,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:15:37,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:37,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:37,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:15:37,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:37,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 04:15:37,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:15:37,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 04:15:37,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:37,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:37,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:37,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 04:15:37,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:37,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:15:37,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:37,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:37,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:15:37,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:37,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 04:15:37,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:15:37,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:15:37,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:37,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:37,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:37,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:15:37,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:37,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:15:37,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:37,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:37,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:37,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:37,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:37,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:15:37,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 04:15:37,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:37,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:37,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:37,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 04:15:37,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:37,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 04:15:37,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:37,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:37,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:15:37,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 04:15:37,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 04:15:37,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:15:37,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:15:37,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:37,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:37,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:37,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 04:15:37,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:37,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 04:15:37,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:37,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:37,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:15:37,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:37,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 04:15:37,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:15:37,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:15:37,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:37,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:37,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:37,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 04:15:37,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:37,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 04:15:37,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:37,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:37,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:15:37,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:37,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:15:37,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:37,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:15:37,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:37,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:37,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:37,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:15:37,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:37,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:15:37,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:37,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:37,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:15:37,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:37,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 04:15:37,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:37,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 04:15:37,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:37,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:37,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:37,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 04:15:37,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:37,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 04:15:37,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:37,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:37,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:15:37,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:37,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 04:15:37,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:15:37,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 04:15:37,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:37,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:37,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:37,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 04:15:37,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:37,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:15:37,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:37,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:37,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:37,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:37,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:37,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:37,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 04:15:37,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:37,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:37,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:37,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:15:37,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:37,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:15:37,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:37,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:37,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:37,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:37,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:37,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:37,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 04:15:37,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:37,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:37,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:37,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:15:37,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:37,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:15:37,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:37,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:37,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:37,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:15:37,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:37,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:15:37,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2020-09-25 04:15:37,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:37,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:37,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:37,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:15:37,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:37,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:15:37,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:37,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:37,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:37,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:15:37,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:37,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:15:37,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-09-25 04:15:37,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:37,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:37,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:15:37,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:15:37,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:15:37,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:15:37,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:15:37,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:15:37,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:15:37,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:15:37,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:15:37,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:15:37,615 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 04:15:37,616 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1497530654] [2020-09-25 04:15:37,616 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:15:37,616 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 04:15:37,616 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156777744] [2020-09-25 04:15:37,617 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 04:15:37,617 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:15:37,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 04:15:37,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:15:37,618 INFO L87 Difference]: Start difference. First operand 402 states and 442 transitions. Second operand 7 states. [2020-09-25 04:15:38,219 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 04:15:38,916 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 04:15:41,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:15:41,386 INFO L93 Difference]: Finished difference Result 1044 states and 1234 transitions. [2020-09-25 04:15:41,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 04:15:41,387 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 230 [2020-09-25 04:15:41,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:15:41,393 INFO L225 Difference]: With dead ends: 1044 [2020-09-25 04:15:41,393 INFO L226 Difference]: Without dead ends: 757 [2020-09-25 04:15:41,394 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 45 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2020-09-25 04:15:41,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 757 states. [2020-09-25 04:15:41,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 757 to 684. [2020-09-25 04:15:41,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 684 states. [2020-09-25 04:15:41,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 771 transitions. [2020-09-25 04:15:41,493 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 771 transitions. Word has length 230 [2020-09-25 04:15:41,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:15:41,493 INFO L479 AbstractCegarLoop]: Abstraction has 684 states and 771 transitions. [2020-09-25 04:15:41,493 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 04:15:41,493 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 771 transitions. [2020-09-25 04:15:41,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-09-25 04:15:41,496 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:15:41,496 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:15:41,496 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 04:15:41,496 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:15:41,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:15:41,497 INFO L82 PathProgramCache]: Analyzing trace with hash -187215217, now seen corresponding path program 1 times [2020-09-25 04:15:41,497 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:15:41,497 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [23282503] [2020-09-25 04:15:41,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:15:41,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:15:41,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:15:41,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking...