/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=HIGHLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 22:31:34,594 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 22:31:34,598 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 22:31:34,626 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 22:31:34,627 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 22:31:34,628 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 22:31:34,629 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 22:31:34,631 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 22:31:34,633 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 22:31:34,634 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 22:31:34,635 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 22:31:34,636 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 22:31:34,636 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 22:31:34,637 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 22:31:34,638 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 22:31:34,640 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 22:31:34,641 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 22:31:34,642 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 22:31:34,643 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 22:31:34,645 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 22:31:34,647 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 22:31:34,648 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 22:31:34,649 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 22:31:34,650 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 22:31:34,653 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 22:31:34,653 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 22:31:34,653 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 22:31:34,654 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 22:31:34,655 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 22:31:34,656 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 22:31:34,656 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 22:31:34,657 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 22:31:34,658 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 22:31:34,659 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 22:31:34,660 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 22:31:34,660 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 22:31:34,661 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 22:31:34,661 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 22:31:34,661 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 22:31:34,662 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 22:31:34,663 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 22:31:34,664 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 22:31:34,689 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 22:31:34,689 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 22:31:34,691 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 22:31:34,691 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 22:31:34,691 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 22:31:34,691 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 22:31:34,692 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 22:31:34,692 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 22:31:34,692 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 22:31:34,692 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 22:31:34,692 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 22:31:34,693 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 22:31:34,693 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 22:31:34,693 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 22:31:34,693 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 22:31:34,693 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 22:31:34,694 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 22:31:34,694 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 22:31:34,694 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 22:31:34,694 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 22:31:34,694 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 22:31:34,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:31:34,695 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 22:31:34,695 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 22:31:34,695 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 22:31:34,695 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 22:31:34,696 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 22:31:34,696 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 22:31:34,696 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 22:31:34,696 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; [2020-09-24 22:31:35,126 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 22:31:35,152 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 22:31:35,157 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 22:31:35,160 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 22:31:35,161 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 22:31:35,162 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product34.cil.c [2020-09-24 22:31:35,258 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/100594429/d4f138f7f8894761ac7f1164edaa37bc/FLAG8a7828c25 [2020-09-24 22:31:35,825 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 22:31:35,826 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product34.cil.c [2020-09-24 22:31:35,839 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/100594429/d4f138f7f8894761ac7f1164edaa37bc/FLAG8a7828c25 [2020-09-24 22:31:36,132 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/100594429/d4f138f7f8894761ac7f1164edaa37bc [2020-09-24 22:31:36,145 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 22:31:36,150 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 22:31:36,151 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 22:31:36,151 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 22:31:36,155 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 22:31:36,156 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:31:36" (1/1) ... [2020-09-24 22:31:36,160 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@366b14c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:31:36, skipping insertion in model container [2020-09-24 22:31:36,161 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:31:36" (1/1) ... [2020-09-24 22:31:36,171 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 22:31:36,229 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 22:31:36,710 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:31:36,725 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 22:31:36,798 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:31:36,836 INFO L208 MainTranslator]: Completed translation [2020-09-24 22:31:36,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:31:36 WrapperNode [2020-09-24 22:31:36,837 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 22:31:36,837 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 22:31:36,838 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 22:31:36,838 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 22:31:36,852 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:31:36" (1/1) ... [2020-09-24 22:31:36,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:31:36" (1/1) ... [2020-09-24 22:31:36,874 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:31:36" (1/1) ... [2020-09-24 22:31:36,874 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:31:36" (1/1) ... [2020-09-24 22:31:36,907 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:31:36" (1/1) ... [2020-09-24 22:31:36,918 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:31:36" (1/1) ... [2020-09-24 22:31:36,923 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:31:36" (1/1) ... [2020-09-24 22:31:36,931 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 22:31:36,932 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 22:31:36,932 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 22:31:36,932 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 22:31:36,934 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:31:36" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:31:37,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 22:31:37,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 22:31:37,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 22:31:37,012 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-24 22:31:37,012 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 22:31:37,012 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 22:31:37,013 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 22:31:37,013 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 22:31:37,013 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 22:31:37,013 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 22:31:37,013 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 22:31:37,014 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 22:31:37,014 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 22:31:37,014 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 22:31:37,014 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 22:31:37,014 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 22:31:37,015 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 22:31:37,015 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 22:31:37,015 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 22:31:37,015 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 22:31:37,016 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 22:31:37,016 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 22:31:37,016 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 22:31:37,016 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 22:31:37,016 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 22:31:37,016 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 22:31:37,017 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 22:31:37,017 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 22:31:37,017 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 22:31:37,017 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 22:31:37,017 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 22:31:37,017 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 22:31:37,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 22:31:37,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 22:31:37,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 22:31:37,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 22:31:37,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 22:31:37,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 22:31:37,019 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 22:31:37,019 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 22:31:37,019 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 22:31:37,019 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 22:31:37,019 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 22:31:37,019 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 22:31:37,019 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-24 22:31:37,020 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 22:31:37,020 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 22:31:37,020 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 22:31:37,020 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 22:31:37,020 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 22:31:37,021 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 22:31:37,021 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 22:31:37,021 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 22:31:37,021 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 22:31:37,021 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 22:31:37,021 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 22:31:37,022 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 22:31:37,022 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 22:31:37,022 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 22:31:37,022 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 22:31:37,022 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 22:31:37,022 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 22:31:37,023 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 22:31:37,023 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 22:31:37,023 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 22:31:37,023 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 22:31:37,023 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 22:31:37,023 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 22:31:37,023 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 22:31:37,024 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 22:31:37,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 22:31:37,024 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 22:31:37,024 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 22:31:37,024 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 22:31:37,024 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 22:31:37,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 22:31:37,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 22:31:37,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 22:31:37,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 22:31:37,025 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 22:31:37,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 22:31:37,026 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 22:31:37,026 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 22:31:37,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 22:31:37,026 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 22:31:37,026 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 22:31:37,026 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 22:31:37,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 22:31:37,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 22:31:37,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 22:31:38,166 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 22:31:38,167 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 22:31:38,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:31:38 BoogieIcfgContainer [2020-09-24 22:31:38,174 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 22:31:38,176 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 22:31:38,176 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 22:31:38,180 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 22:31:38,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 10:31:36" (1/3) ... [2020-09-24 22:31:38,181 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d1d47b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:31:38, skipping insertion in model container [2020-09-24 22:31:38,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:31:36" (2/3) ... [2020-09-24 22:31:38,182 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d1d47b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:31:38, skipping insertion in model container [2020-09-24 22:31:38,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:31:38" (3/3) ... [2020-09-24 22:31:38,184 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product34.cil.c [2020-09-24 22:31:38,195 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 22:31:38,212 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 22:31:38,231 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 22:31:38,263 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 22:31:38,264 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 22:31:38,264 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 22:31:38,264 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 22:31:38,264 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 22:31:38,264 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 22:31:38,264 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 22:31:38,265 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 22:31:38,291 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states. [2020-09-24 22:31:38,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 22:31:38,308 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:31:38,309 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:31:38,310 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:31:38,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:31:38,316 INFO L82 PathProgramCache]: Analyzing trace with hash -769806534, now seen corresponding path program 1 times [2020-09-24 22:31:38,325 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:31:38,325 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2090122925] [2020-09-24 22:31:38,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:31:38,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:31:38,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:31:39,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:31:40,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:31:41,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:31:43,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:31:43,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 22:31:43,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 22:31:43,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-09-24 22:31:43,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:31:43,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:31:43,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 138 [2020-09-24 22:31:43,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 22:31:43,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 22:31:44,196 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:31:44,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:31:44,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:31:44,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:31:44,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:31:44,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:31:44,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:31:44,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-09-24 22:31:44,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:31:44,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:31:44,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:31:44,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:31:44,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:31:44,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:31:44,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:31:44,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:31:44,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:31:44,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:31:44,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:31:44,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:31:44,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:31:44,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:31:44,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:31:44,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:31:44,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:31:44,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:31:44,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:31:44,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:31:44,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:31:44,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:31:44,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:31:44,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:31:44,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:31:44,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:31:44,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:31:44,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:31:44,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:31:44,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:31:44,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:31:44,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:31:44,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:31:44,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:31:44,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:31:44,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:31:44,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:31:44,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:31:44,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:31:44,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:31:44,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:31:44,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:31:44,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:31:44,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:31:44,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:31:44,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:31:44,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:31:44,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:31:44,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:31:44,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:31:44,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:31:44,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:31:44,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:31:44,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 22:31:44,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:31:44,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:31:44,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:31:44,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:31:44,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:31:44,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:31:44,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:31:44,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:31:44,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:31:44,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:31:44,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:31:44,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 22:31:44,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:31:44,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:31:44,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:31:44,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:31:44,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:31:44,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 22:31:44,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:31:44,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:31:44,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:31:44,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:31:44,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:31:44,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:31:44,541 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2090122925] [2020-09-24 22:31:44,543 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:31:44,544 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 22:31:44,545 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961683322] [2020-09-24 22:31:44,553 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 22:31:44,553 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:31:44,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 22:31:44,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 22:31:44,577 INFO L87 Difference]: Start difference. First operand 282 states. Second operand 8 states. [2020-09-24 22:31:45,226 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:31:46,543 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:31:46,856 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 22:31:47,166 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:31:47,497 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:31:47,813 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:31:48,499 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:31:48,858 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:31:49,259 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:31:50,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:31:50,329 INFO L93 Difference]: Finished difference Result 537 states and 670 transitions. [2020-09-24 22:31:50,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 22:31:50,332 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-24 22:31:50,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:31:50,354 INFO L225 Difference]: With dead ends: 537 [2020-09-24 22:31:50,354 INFO L226 Difference]: Without dead ends: 366 [2020-09-24 22:31:50,361 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-24 22:31:50,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2020-09-24 22:31:50,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 323. [2020-09-24 22:31:50,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 323 states. [2020-09-24 22:31:50,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 369 transitions. [2020-09-24 22:31:50,493 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 369 transitions. Word has length 142 [2020-09-24 22:31:50,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:31:50,494 INFO L479 AbstractCegarLoop]: Abstraction has 323 states and 369 transitions. [2020-09-24 22:31:50,495 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 22:31:50,495 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 369 transitions. [2020-09-24 22:31:50,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-09-24 22:31:50,501 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:31:50,502 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:31:50,502 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 22:31:50,502 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:31:50,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:31:50,503 INFO L82 PathProgramCache]: Analyzing trace with hash 1684274182, now seen corresponding path program 1 times [2020-09-24 22:31:50,503 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:31:50,504 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2103651812] [2020-09-24 22:31:50,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:31:50,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:31:50,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:31:51,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:31:55,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:31:55,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 228 [2020-09-24 22:31:55,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:31:55,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5046 [2020-09-24 22:31:55,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:31:55,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:31:55,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 178 [2020-09-24 22:31:55,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:31:55,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:31:55,909 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:31:55,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:31:55,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:31:55,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:31:56,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:31:56,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:31:56,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:31:56,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-24 22:31:56,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:31:56,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:31:56,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:31:56,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:31:56,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:31:56,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:31:56,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:31:56,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:31:56,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:31:56,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:31:56,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:31:56,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:31:56,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:31:56,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:31:56,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:31:56,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:31:56,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:31:56,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:31:56,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:31:56,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:31:56,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:31:56,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:31:56,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:31:56,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:31:56,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:31:56,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:31:56,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:31:56,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:31:56,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:31:56,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:31:56,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:31:56,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:31:56,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:31:56,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:31:56,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:31:56,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:31:56,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:31:56,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:31:56,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:31:56,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:31:56,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:31:56,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:31:56,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:31:56,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:31:56,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:31:56,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:31:56,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:31:56,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:31:56,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:31:56,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:31:56,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:31:56,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:31:56,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:31:56,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 22:31:56,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:31:56,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:31:56,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:31:56,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:31:56,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:31:56,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:31:56,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:31:56,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:31:56,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:31:56,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:31:56,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:31:56,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 22:31:56,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:31:56,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:31:56,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:31:56,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 22:31:56,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:31:56,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-24 22:31:56,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:31:56,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:31:56,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 22:31:56,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:31:56,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:31:56,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:31:56,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:31:56,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:31:56,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:31:56,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:31:56,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:31:56,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-24 22:31:56,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:31:56,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:31:56,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:31:56,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 22:31:56,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:31:56,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:31:56,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:31:56,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:31:56,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:31:56,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:31:56,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:31:56,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:31:56,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:31:56,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:31:56,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:31:56,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:31:56,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:31:56,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 22:31:56,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:31:56,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:31:56,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:31:56,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:31:56,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:31:56,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:31:56,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:31:56,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:31:56,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 22:31:56,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:31:56,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:31:56,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-09-24 22:31:56,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:31:56,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:31:56,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:31:56,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:31:56,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:31:56,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:31:56,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:31:56,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:31:56,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:31:56,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:31:56,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:31:56,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-24 22:31:56,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:31:56,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:31:56,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:31:56,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:31:56,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:31:56,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:31:56,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:31:56,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:31:56,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:31:56,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:31:56,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:31:56,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:31:56,381 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2103651812] [2020-09-24 22:31:56,381 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:31:56,382 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 22:31:56,382 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124820514] [2020-09-24 22:31:56,384 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 22:31:56,384 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:31:56,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 22:31:56,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 22:31:56,385 INFO L87 Difference]: Start difference. First operand 323 states and 369 transitions. Second operand 10 states. [2020-09-24 22:31:58,019 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:31:58,313 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:31:58,619 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:31:58,920 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:31:59,193 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:31:59,465 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:32:00,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:32:00,345 INFO L93 Difference]: Finished difference Result 689 states and 875 transitions. [2020-09-24 22:32:00,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 22:32:00,349 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 189 [2020-09-24 22:32:00,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:32:00,356 INFO L225 Difference]: With dead ends: 689 [2020-09-24 22:32:00,357 INFO L226 Difference]: Without dead ends: 476 [2020-09-24 22:32:00,361 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-24 22:32:00,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2020-09-24 22:32:00,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 331. [2020-09-24 22:32:00,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 331 states. [2020-09-24 22:32:00,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 377 transitions. [2020-09-24 22:32:00,429 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 377 transitions. Word has length 189 [2020-09-24 22:32:00,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:32:00,430 INFO L479 AbstractCegarLoop]: Abstraction has 331 states and 377 transitions. [2020-09-24 22:32:00,430 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 22:32:00,431 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 377 transitions. [2020-09-24 22:32:00,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-09-24 22:32:00,434 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:32:00,434 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:32:00,435 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 22:32:00,435 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:32:00,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:32:00,435 INFO L82 PathProgramCache]: Analyzing trace with hash 262033318, now seen corresponding path program 1 times [2020-09-24 22:32:00,436 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:32:00,436 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1613060688] [2020-09-24 22:32:00,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:32:00,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:00,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:01,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:05,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:05,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 228 [2020-09-24 22:32:05,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:32:05,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-09-24 22:32:05,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:05,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:32:05,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 170 [2020-09-24 22:32:05,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:32:05,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:05,810 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:32:05,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:32:05,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:05,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:05,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:05,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:32:05,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:05,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-24 22:32:05,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:05,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:05,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:05,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:05,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:32:05,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:32:05,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:05,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:05,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:05,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:32:05,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:05,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:32:05,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:05,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:05,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:05,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:05,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:32:05,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:32:05,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:05,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:05,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:05,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:32:05,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:05,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:32:05,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:05,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:05,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:05,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:05,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:32:05,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:32:05,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:05,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:05,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:05,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:32:05,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:05,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:32:05,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:05,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:05,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:05,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:05,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:32:05,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:32:05,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:05,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:05,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:05,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:32:05,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:05,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:32:05,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:05,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:05,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:05,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:05,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:32:06,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 22:32:06,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:06,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:06,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:06,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:32:06,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:06,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:32:06,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:06,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:06,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:06,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:06,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:32:06,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 22:32:06,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:06,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:06,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:06,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 22:32:06,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:06,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-24 22:32:06,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:06,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:32:06,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 22:32:06,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:32:06,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:32:06,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:32:06,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:06,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:06,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:06,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:32:06,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:06,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 22:32:06,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:06,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:32:06,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 22:32:06,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:32:06,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:32:06,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:32:06,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:06,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:06,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:06,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:32:06,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:06,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 22:32:06,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:06,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 22:32:06,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:06,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:32:06,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:06,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 22:32:06,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:06,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:06,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:06,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:32:06,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:06,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:32:06,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:06,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:06,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 22:32:06,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:06,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:32:06,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-09-24 22:32:06,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:06,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:06,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:06,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:32:06,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:06,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:32:06,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:06,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:06,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:32:06,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:06,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:32:06,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-24 22:32:06,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:06,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:06,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:06,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:32:06,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:06,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:32:06,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:06,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:06,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:32:06,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:06,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:32:06,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:32:06,325 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1613060688] [2020-09-24 22:32:06,325 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:32:06,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 22:32:06,327 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092999389] [2020-09-24 22:32:06,328 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 22:32:06,328 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:32:06,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 22:32:06,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-24 22:32:06,329 INFO L87 Difference]: Start difference. First operand 331 states and 377 transitions. Second operand 9 states. [2020-09-24 22:32:07,824 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:32:08,063 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:32:08,357 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:32:08,681 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:32:08,976 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:32:09,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:32:09,789 INFO L93 Difference]: Finished difference Result 703 states and 914 transitions. [2020-09-24 22:32:09,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 22:32:09,790 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 189 [2020-09-24 22:32:09,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:32:09,795 INFO L225 Difference]: With dead ends: 703 [2020-09-24 22:32:09,795 INFO L226 Difference]: Without dead ends: 482 [2020-09-24 22:32:09,798 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-24 22:32:09,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2020-09-24 22:32:09,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 337. [2020-09-24 22:32:09,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2020-09-24 22:32:09,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 383 transitions. [2020-09-24 22:32:09,853 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 383 transitions. Word has length 189 [2020-09-24 22:32:09,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:32:09,854 INFO L479 AbstractCegarLoop]: Abstraction has 337 states and 383 transitions. [2020-09-24 22:32:09,854 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 22:32:09,855 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 383 transitions. [2020-09-24 22:32:09,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-09-24 22:32:09,858 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:32:09,859 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:32:09,859 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 22:32:09,859 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:32:09,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:32:09,860 INFO L82 PathProgramCache]: Analyzing trace with hash -1288749186, now seen corresponding path program 1 times [2020-09-24 22:32:09,860 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:32:09,860 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [254461588] [2020-09-24 22:32:09,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:32:09,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:09,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:10,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:10,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:10,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:14,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:14,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 245 [2020-09-24 22:32:14,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 22:32:14,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-24 22:32:14,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:14,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:32:14,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-09-24 22:32:14,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 22:32:14,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:15,271 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:32:15,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:32:15,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:15,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:15,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:15,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:32:15,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:15,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-24 22:32:15,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:15,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:15,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:15,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:15,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:32:15,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:32:15,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:15,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:15,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:15,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:32:15,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:15,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:32:15,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:15,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:15,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:15,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:15,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:32:15,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:32:15,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:15,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:15,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:15,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:32:15,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:15,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:32:15,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:15,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:15,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:15,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:15,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:32:15,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:32:15,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:15,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:15,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:15,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:32:15,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:15,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:32:15,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:15,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:15,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:15,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:15,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:32:15,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:32:15,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:15,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:15,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:15,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:32:15,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:15,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:32:15,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:15,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:15,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:15,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:15,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:32:15,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-09-24 22:32:15,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:15,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:15,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:15,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 22:32:15,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:15,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 22:32:15,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:15,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:32:15,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:15,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 22:32:15,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:32:15,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:32:15,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:15,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:15,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:15,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 22:32:15,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:15,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 22:32:15,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:15,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:32:15,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:15,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 22:32:15,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:32:15,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:32:15,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:15,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:15,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:15,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:32:15,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:15,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:32:15,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:15,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:15,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:15,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:15,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:32:15,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 22:32:15,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:15,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:15,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:15,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 22:32:15,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:15,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 22:32:15,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:15,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:15,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-09-24 22:32:15,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:15,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:32:15,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:32:15,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:15,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:15,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:15,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:32:15,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:15,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 22:32:15,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:15,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:15,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:15,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:15,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:32:15,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:32:15,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:15,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:15,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:15,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:32:15,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:15,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:32:15,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:15,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:15,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:15,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:15,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:32:15,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 22:32:15,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:15,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:15,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:15,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:32:15,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:15,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:32:15,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:15,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:15,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:15,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:15,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:32:15,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-24 22:32:15,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:15,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:15,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:15,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:32:15,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:15,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:32:15,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:15,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:15,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:32:15,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:15,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:32:15,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-24 22:32:15,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:15,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:15,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:15,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:32:15,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:15,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:32:15,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:15,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:15,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:32:15,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:15,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:32:15,759 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 22:32:15,760 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [254461588] [2020-09-24 22:32:15,760 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 22:32:15,760 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-24 22:32:15,761 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872515393] [2020-09-24 22:32:15,761 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 22:32:15,761 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:32:15,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 22:32:15,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-24 22:32:15,762 INFO L87 Difference]: Start difference. First operand 337 states and 383 transitions. Second operand 6 states. [2020-09-24 22:32:16,748 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:32:18,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:32:18,814 INFO L93 Difference]: Finished difference Result 913 states and 1185 transitions. [2020-09-24 22:32:18,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 22:32:18,815 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 200 [2020-09-24 22:32:18,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:32:18,821 INFO L225 Difference]: With dead ends: 913 [2020-09-24 22:32:18,821 INFO L226 Difference]: Without dead ends: 663 [2020-09-24 22:32:18,823 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-09-24 22:32:18,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 663 states. [2020-09-24 22:32:18,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 663 to 470. [2020-09-24 22:32:18,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 470 states. [2020-09-24 22:32:18,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 542 transitions. [2020-09-24 22:32:18,906 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 542 transitions. Word has length 200 [2020-09-24 22:32:18,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:32:18,907 INFO L479 AbstractCegarLoop]: Abstraction has 470 states and 542 transitions. [2020-09-24 22:32:18,907 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 22:32:18,907 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 542 transitions. [2020-09-24 22:32:18,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-09-24 22:32:18,910 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:32:18,910 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:32:18,911 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 22:32:18,911 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:32:18,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:32:18,911 INFO L82 PathProgramCache]: Analyzing trace with hash 470382089, now seen corresponding path program 1 times [2020-09-24 22:32:18,911 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:32:18,912 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [767345700] [2020-09-24 22:32:18,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:32:18,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:19,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:19,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking...