/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=1.0 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product38.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 08:38:59,724 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 08:38:59,728 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 08:38:59,756 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 08:38:59,756 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 08:38:59,758 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 08:38:59,759 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 08:38:59,761 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 08:38:59,763 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 08:38:59,764 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 08:38:59,765 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 08:38:59,767 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 08:38:59,767 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 08:38:59,768 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 08:38:59,770 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 08:38:59,771 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 08:38:59,772 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 08:38:59,773 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 08:38:59,775 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 08:38:59,778 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 08:38:59,780 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 08:38:59,781 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 08:38:59,782 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 08:38:59,783 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 08:38:59,791 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 08:38:59,792 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 08:38:59,792 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 08:38:59,795 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 08:38:59,796 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 08:38:59,797 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 08:38:59,797 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 08:38:59,798 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 08:38:59,801 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 08:38:59,802 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 08:38:59,803 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 08:38:59,803 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 08:38:59,806 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 08:38:59,806 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 08:38:59,806 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 08:38:59,808 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 08:38:59,808 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 08:38:59,810 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 08:38:59,858 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 08:38:59,858 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 08:38:59,860 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 08:38:59,861 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 08:38:59,861 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 08:38:59,861 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 08:38:59,861 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 08:38:59,862 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 08:38:59,862 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 08:38:59,862 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 08:38:59,863 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 08:38:59,863 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 08:38:59,863 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 08:38:59,864 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 08:38:59,864 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 08:38:59,864 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 08:38:59,865 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 08:38:59,865 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 08:38:59,865 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 08:38:59,865 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 08:38:59,866 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 08:38:59,866 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:38:59,866 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 08:38:59,866 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 08:38:59,867 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 08:38:59,867 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 08:38:59,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 08:38:59,867 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 08:38:59,867 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 08:38:59,868 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; [2020-09-25 08:39:00,347 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 08:39:00,364 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 08:39:00,369 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 08:39:00,371 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 08:39:00,371 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 08:39:00,372 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product38.cil.c [2020-09-25 08:39:00,461 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e5ee23cc4/64da8553cb3e43259957cc2dc5a3c5c5/FLAG35ef75e11 [2020-09-25 08:39:01,053 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 08:39:01,054 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product38.cil.c [2020-09-25 08:39:01,068 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e5ee23cc4/64da8553cb3e43259957cc2dc5a3c5c5/FLAG35ef75e11 [2020-09-25 08:39:01,337 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e5ee23cc4/64da8553cb3e43259957cc2dc5a3c5c5 [2020-09-25 08:39:01,352 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 08:39:01,359 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 08:39:01,360 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 08:39:01,360 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 08:39:01,365 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 08:39:01,366 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:39:01" (1/1) ... [2020-09-25 08:39:01,370 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53d96e6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:39:01, skipping insertion in model container [2020-09-25 08:39:01,370 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:39:01" (1/1) ... [2020-09-25 08:39:01,379 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 08:39:01,442 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 08:39:01,916 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:39:01,930 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 08:39:02,028 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:39:02,067 INFO L208 MainTranslator]: Completed translation [2020-09-25 08:39:02,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:39:02 WrapperNode [2020-09-25 08:39:02,068 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 08:39:02,069 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 08:39:02,069 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 08:39:02,069 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 08:39:02,083 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:39:02" (1/1) ... [2020-09-25 08:39:02,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:39:02" (1/1) ... [2020-09-25 08:39:02,105 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:39:02" (1/1) ... [2020-09-25 08:39:02,105 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:39:02" (1/1) ... [2020-09-25 08:39:02,139 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:39:02" (1/1) ... [2020-09-25 08:39:02,151 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:39:02" (1/1) ... [2020-09-25 08:39:02,156 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:39:02" (1/1) ... [2020-09-25 08:39:02,164 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 08:39:02,165 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 08:39:02,165 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 08:39:02,165 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 08:39:02,167 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:39:02" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:39:02,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 08:39:02,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 08:39:02,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 08:39:02,253 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 08:39:02,253 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 08:39:02,253 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 08:39:02,253 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 08:39:02,254 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 08:39:02,254 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 08:39:02,254 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 08:39:02,254 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 08:39:02,254 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 08:39:02,255 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 08:39:02,255 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 08:39:02,255 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 08:39:02,255 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 08:39:02,255 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 08:39:02,256 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 08:39:02,256 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 08:39:02,256 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 08:39:02,256 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 08:39:02,256 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 08:39:02,257 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 08:39:02,257 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 08:39:02,257 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 08:39:02,257 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 08:39:02,257 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 08:39:02,258 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 08:39:02,258 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 08:39:02,258 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 08:39:02,258 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 08:39:02,258 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 08:39:02,258 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 08:39:02,258 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 08:39:02,259 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 08:39:02,259 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 08:39:02,259 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 08:39:02,259 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 08:39:02,259 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 08:39:02,259 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 08:39:02,260 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 08:39:02,260 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 08:39:02,260 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 08:39:02,260 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 08:39:02,260 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 08:39:02,261 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 08:39:02,261 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 08:39:02,261 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 08:39:02,261 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 08:39:02,261 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 08:39:02,262 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 08:39:02,262 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 08:39:02,262 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 08:39:02,262 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 08:39:02,262 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 08:39:02,263 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 08:39:02,263 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 08:39:02,263 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 08:39:02,263 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 08:39:02,263 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 08:39:02,263 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 08:39:02,263 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 08:39:02,264 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 08:39:02,264 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 08:39:02,264 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 08:39:02,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 08:39:02,264 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 08:39:02,264 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 08:39:02,265 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 08:39:02,265 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 08:39:02,265 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 08:39:02,265 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 08:39:02,265 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 08:39:02,265 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 08:39:02,266 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 08:39:02,266 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 08:39:02,266 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 08:39:02,266 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 08:39:02,266 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 08:39:02,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 08:39:02,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 08:39:02,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 08:39:02,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 08:39:02,267 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 08:39:02,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 08:39:02,267 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 08:39:02,267 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 08:39:02,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 08:39:02,268 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 08:39:02,268 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 08:39:02,268 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 08:39:02,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 08:39:02,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 08:39:02,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 08:39:03,563 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 08:39:03,564 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 08:39:03,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:39:03 BoogieIcfgContainer [2020-09-25 08:39:03,571 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 08:39:03,572 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 08:39:03,573 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 08:39:03,576 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 08:39:03,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:39:01" (1/3) ... [2020-09-25 08:39:03,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6917ff0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:39:03, skipping insertion in model container [2020-09-25 08:39:03,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:39:02" (2/3) ... [2020-09-25 08:39:03,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6917ff0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:39:03, skipping insertion in model container [2020-09-25 08:39:03,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:39:03" (3/3) ... [2020-09-25 08:39:03,580 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product38.cil.c [2020-09-25 08:39:03,591 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 08:39:03,602 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 08:39:03,624 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 08:39:03,650 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 08:39:03,651 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 08:39:03,651 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 08:39:03,651 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 08:39:03,651 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 08:39:03,651 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 08:39:03,651 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 08:39:03,651 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 08:39:03,680 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states. [2020-09-25 08:39:03,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 08:39:03,699 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:39:03,700 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:39:03,701 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:39:03,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:39:03,708 INFO L82 PathProgramCache]: Analyzing trace with hash 837157569, now seen corresponding path program 1 times [2020-09-25 08:39:03,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:39:03,720 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1151335503] [2020-09-25 08:39:03,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:39:04,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:04,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:04,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:05,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:06,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:07,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:09,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:09,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 08:39:09,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:39:09,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-09-25 08:39:09,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:09,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:09,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:09,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 08:39:09,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:09,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 15 [2020-09-25 08:39:09,689 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:39:09,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:39:09,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:09,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:09,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:09,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:39:09,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:09,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-09-25 08:39:09,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:09,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:09,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:09,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:09,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:09,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:39:09,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:39:09,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:09,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:09,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:09,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:39:09,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:09,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:39:09,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:09,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:09,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:09,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:09,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:09,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:09,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:39:09,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:09,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:09,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:09,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:39:09,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:09,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:39:09,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:09,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:09,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:09,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:09,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:09,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:39:09,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:39:09,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:09,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:09,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:09,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:39:09,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:09,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:39:09,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:09,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:09,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:09,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:09,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:09,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:09,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:39:09,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:09,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:09,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:09,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:39:09,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:09,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:39:09,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:09,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:09,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:09,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:09,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:09,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:09,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:39:09,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:09,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:09,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:09,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:39:09,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:09,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:39:09,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:09,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:09,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:10,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:10,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:10,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:39:10,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 08:39:10,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:10,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:10,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:10,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:39:10,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:10,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:39:10,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:10,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:10,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:10,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:39:10,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:10,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:10,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 08:39:10,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:10,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:10,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:10,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:39:10,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:10,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:39:10,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:10,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:10,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:10,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:39:10,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:10,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:10,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:39:10,103 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1151335503] [2020-09-25 08:39:10,105 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:39:10,106 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 08:39:10,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833290424] [2020-09-25 08:39:10,116 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 08:39:10,120 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:39:10,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 08:39:10,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 08:39:10,143 INFO L87 Difference]: Start difference. First operand 314 states. Second operand 4 states. [2020-09-25 08:39:11,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:39:11,640 INFO L93 Difference]: Finished difference Result 490 states and 581 transitions. [2020-09-25 08:39:11,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 08:39:11,643 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-25 08:39:11,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:39:11,663 INFO L225 Difference]: With dead ends: 490 [2020-09-25 08:39:11,663 INFO L226 Difference]: Without dead ends: 312 [2020-09-25 08:39:11,669 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 08:39:11,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2020-09-25 08:39:11,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 263. [2020-09-25 08:39:11,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2020-09-25 08:39:11,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 286 transitions. [2020-09-25 08:39:11,783 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 286 transitions. Word has length 148 [2020-09-25 08:39:11,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:39:11,784 INFO L479 AbstractCegarLoop]: Abstraction has 263 states and 286 transitions. [2020-09-25 08:39:11,785 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 08:39:11,787 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 286 transitions. [2020-09-25 08:39:11,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-25 08:39:11,796 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:39:11,797 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] [2020-09-25 08:39:11,797 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 08:39:11,797 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:39:11,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:39:11,798 INFO L82 PathProgramCache]: Analyzing trace with hash 675807139, now seen corresponding path program 1 times [2020-09-25 08:39:11,798 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:39:11,799 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1085976279] [2020-09-25 08:39:11,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:39:11,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:11,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:12,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:13,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:14,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:15,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:15,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:16,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:16,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-25 08:39:16,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 08:39:16,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-09-25 08:39:16,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:16,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:16,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:39:16,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 08:39:16,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 08:39:16,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:17,275 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:39:17,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:39:17,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:17,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:17,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:17,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:39:17,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:17,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-25 08:39:17,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:17,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:17,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:17,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:17,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:17,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:39:17,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:39:17,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:17,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:17,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:17,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:39:17,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:17,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:39:17,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:17,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:17,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:17,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:17,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:17,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:17,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:39:17,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:17,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:17,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:17,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:39:17,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:17,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:39:17,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:17,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:17,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:17,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:17,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:17,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:17,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:39:17,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:17,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:17,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:17,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:39:17,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:17,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:39:17,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:17,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:17,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:17,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:17,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:17,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:17,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:39:17,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:17,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:17,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:17,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:39:17,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:17,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:39:17,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:17,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:17,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:17,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:17,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:17,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:17,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:39:17,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:17,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:17,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:17,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:39:17,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:17,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:39:17,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:17,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:17,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:17,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:17,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:17,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:17,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 08:39:17,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:17,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:17,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:17,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:39:17,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:17,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:39:17,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:17,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:17,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:17,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:39:17,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:17,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:17,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 08:39:17,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:17,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:17,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:17,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:39:17,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:17,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:39:17,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:17,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:17,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:17,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:39:17,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:17,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:17,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:39:17,525 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1085976279] [2020-09-25 08:39:17,525 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:39:17,526 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 08:39:17,526 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992237253] [2020-09-25 08:39:17,528 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 08:39:17,528 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:39:17,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 08:39:17,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:39:17,529 INFO L87 Difference]: Start difference. First operand 263 states and 286 transitions. Second operand 5 states. [2020-09-25 08:39:18,354 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:39:19,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:39:19,296 INFO L93 Difference]: Finished difference Result 415 states and 472 transitions. [2020-09-25 08:39:19,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 08:39:19,297 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-25 08:39:19,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:39:19,301 INFO L225 Difference]: With dead ends: 415 [2020-09-25 08:39:19,301 INFO L226 Difference]: Without dead ends: 301 [2020-09-25 08:39:19,303 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:39:19,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2020-09-25 08:39:19,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 253. [2020-09-25 08:39:19,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2020-09-25 08:39:19,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 273 transitions. [2020-09-25 08:39:19,377 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 273 transitions. Word has length 149 [2020-09-25 08:39:19,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:39:19,377 INFO L479 AbstractCegarLoop]: Abstraction has 253 states and 273 transitions. [2020-09-25 08:39:19,378 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 08:39:19,378 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 273 transitions. [2020-09-25 08:39:19,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 08:39:19,380 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:39:19,380 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] [2020-09-25 08:39:19,381 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 08:39:19,381 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:39:19,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:39:19,381 INFO L82 PathProgramCache]: Analyzing trace with hash 1185263590, now seen corresponding path program 1 times [2020-09-25 08:39:19,382 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:39:19,382 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [444582273] [2020-09-25 08:39:19,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:39:19,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:19,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:19,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:20,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:20,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:21,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:24,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:24,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-09-25 08:39:24,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:39:24,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-09-25 08:39:24,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:24,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:24,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:39:24,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 08:39:24,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:39:24,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:24,765 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:39:24,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:39:24,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:24,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:24,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:24,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:39:24,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:24,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-25 08:39:24,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:24,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:24,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:24,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:24,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:24,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:24,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:39:24,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:24,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:24,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:24,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:39:24,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:24,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:39:24,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:24,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:24,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:24,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:24,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:24,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:24,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:39:24,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:24,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:24,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:24,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:39:24,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:24,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:39:24,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:24,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:24,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:24,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:24,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:24,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:24,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:39:24,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:24,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:24,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:24,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:39:24,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:24,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:39:24,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:24,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:24,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:24,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:24,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:24,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:24,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:39:24,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:24,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:24,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:24,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:39:24,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:24,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:39:24,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:24,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:24,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:24,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:24,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:24,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:24,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:39:24,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:24,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:24,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:24,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:39:24,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:24,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:39:24,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:24,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:24,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:24,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:24,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:24,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:24,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 08:39:24,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:24,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:24,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:24,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:39:24,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:24,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:39:24,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:24,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:24,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:39:24,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:24,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 08:39:24,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:24,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 08:39:24,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:24,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:24,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:24,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:39:24,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:24,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:39:24,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:24,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:24,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:24,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:39:24,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:24,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:39:24,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 08:39:24,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:24,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:24,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:24,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:39:24,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:24,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:39:24,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:24,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:24,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:24,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:39:24,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:24,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:39:24,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:39:24,947 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [444582273] [2020-09-25 08:39:24,947 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:39:24,948 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 08:39:24,948 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196906745] [2020-09-25 08:39:24,949 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 08:39:24,949 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:39:24,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 08:39:24,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 08:39:24,950 INFO L87 Difference]: Start difference. First operand 253 states and 273 transitions. Second operand 6 states. [2020-09-25 08:39:25,483 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:39:26,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:39:26,662 INFO L93 Difference]: Finished difference Result 462 states and 537 transitions. [2020-09-25 08:39:26,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 08:39:26,663 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2020-09-25 08:39:26,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:39:26,672 INFO L225 Difference]: With dead ends: 462 [2020-09-25 08:39:26,672 INFO L226 Difference]: Without dead ends: 324 [2020-09-25 08:39:26,673 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 08:39:26,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2020-09-25 08:39:26,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 253. [2020-09-25 08:39:26,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2020-09-25 08:39:26,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 272 transitions. [2020-09-25 08:39:26,745 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 272 transitions. Word has length 162 [2020-09-25 08:39:26,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:39:26,748 INFO L479 AbstractCegarLoop]: Abstraction has 253 states and 272 transitions. [2020-09-25 08:39:26,748 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 08:39:26,748 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 272 transitions. [2020-09-25 08:39:26,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-25 08:39:26,751 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:39:26,752 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] [2020-09-25 08:39:26,752 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 08:39:26,752 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:39:26,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:39:26,753 INFO L82 PathProgramCache]: Analyzing trace with hash -323701345, now seen corresponding path program 1 times [2020-09-25 08:39:26,753 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:39:26,753 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1130138112] [2020-09-25 08:39:26,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:39:26,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:26,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:27,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:27,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:28,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:29,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:30,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:30,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:30,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:31,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:31,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 214 [2020-09-25 08:39:31,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 08:39:31,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 08:39:31,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:31,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:31,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:39:31,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 08:39:31,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-25 08:39:31,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:32,260 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:39:32,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:39:32,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:32,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:32,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:32,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:39:32,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:32,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-25 08:39:32,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:32,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:32,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:32,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:32,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:32,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:32,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:39:32,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:32,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:32,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:32,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:39:32,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:32,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:39:32,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:32,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:32,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:32,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:32,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:32,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:32,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:39:32,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:32,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:32,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:32,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:39:32,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:32,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:39:32,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:32,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:32,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:32,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:32,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:32,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:32,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:39:32,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:32,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:32,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:32,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:39:32,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:32,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:39:32,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:32,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:32,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:32,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:32,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:32,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:32,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:39:32,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:32,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:32,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:32,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:39:32,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:32,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:39:32,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:32,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:32,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:32,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:32,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:32,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:32,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:39:32,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:32,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:32,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:32,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:39:32,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:32,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:39:32,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:32,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:32,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:39:32,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:32,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 08:39:32,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:32,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 08:39:32,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:32,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:32,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:32,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:39:32,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:32,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:39:32,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:32,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:32,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:39:32,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:32,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 08:39:32,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:32,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 08:39:32,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:32,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:32,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:32,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:32,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 08:39:32,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:39:32,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 08:39:32,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:32,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:32,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:39:32,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:32,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 08:39:32,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:39:32,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:39:32,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:32,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:32,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:32,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 08:39:32,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:32,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:39:32,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:32,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:32,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:32,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:32,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:32,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:32,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:39:32,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:32,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:32,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:32,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:39:32,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:32,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:39:32,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:32,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:32,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:32,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:32,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:32,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:32,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-25 08:39:32,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:32,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:32,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:32,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:39:32,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:32,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:39:32,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:32,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:32,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:39:32,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:32,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:39:32,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:32,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-09-25 08:39:32,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:32,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:32,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:32,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:39:32,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:32,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:39:32,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:32,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:32,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:39:32,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:32,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:39:32,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:32,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:39:32,627 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1130138112] [2020-09-25 08:39:32,627 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:39:32,628 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 08:39:32,628 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401516801] [2020-09-25 08:39:32,629 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 08:39:32,629 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:39:32,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 08:39:32,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:39:32,630 INFO L87 Difference]: Start difference. First operand 253 states and 272 transitions. Second operand 7 states. [2020-09-25 08:39:33,155 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:39:36,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:39:36,006 INFO L93 Difference]: Finished difference Result 668 states and 863 transitions. [2020-09-25 08:39:36,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 08:39:36,006 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 175 [2020-09-25 08:39:36,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:39:36,015 INFO L225 Difference]: With dead ends: 668 [2020-09-25 08:39:36,015 INFO L226 Difference]: Without dead ends: 665 [2020-09-25 08:39:36,016 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2020-09-25 08:39:36,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2020-09-25 08:39:36,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 391. [2020-09-25 08:39:36,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 391 states. [2020-09-25 08:39:36,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 431 transitions. [2020-09-25 08:39:36,094 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 431 transitions. Word has length 175 [2020-09-25 08:39:36,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:39:36,094 INFO L479 AbstractCegarLoop]: Abstraction has 391 states and 431 transitions. [2020-09-25 08:39:36,094 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 08:39:36,095 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 431 transitions. [2020-09-25 08:39:36,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2020-09-25 08:39:36,098 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:39:36,099 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:39:36,099 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 08:39:36,099 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:39:36,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:39:36,100 INFO L82 PathProgramCache]: Analyzing trace with hash -1086310707, now seen corresponding path program 1 times [2020-09-25 08:39:36,100 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:39:36,100 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [811799960] [2020-09-25 08:39:36,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:39:36,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:36,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:36,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:36,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:36,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:37,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:38,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:38,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:39,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:39,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:39,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:40,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:41,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:41,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:41,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 293 [2020-09-25 08:39:41,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-09-25 08:39:41,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5057 [2020-09-25 08:39:41,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:41,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:41,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:39:41,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 170 [2020-09-25 08:39:41,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 08:39:41,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:39:41,503 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:39:41,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:39:41,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:41,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:41,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:41,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:39:41,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:41,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-25 08:39:41,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:41,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:41,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:41,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:41,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:41,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:39:41,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:39:41,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:41,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:41,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:41,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:39:41,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:41,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:39:41,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:41,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:41,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:41,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:41,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:41,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:39:41,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:39:41,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:41,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:41,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:41,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:39:41,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:41,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:39:41,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:41,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:41,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:41,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:41,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:41,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:39:41,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:39:41,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:41,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:41,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:41,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:39:41,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:41,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:39:41,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:41,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:41,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:41,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:41,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:41,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:41,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:39:41,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:41,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:41,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:41,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:39:41,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:41,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:39:41,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:41,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:41,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:41,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:41,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:41,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:39:41,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:39:41,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:41,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:41,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:41,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:39:41,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:41,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:39:41,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:41,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:41,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:41,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:41,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:41,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:39:41,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 08:39:41,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:41,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:41,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:41,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:39:41,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:41,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:39:41,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:41,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:41,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:41,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:41,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:41,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:41,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 08:39:41,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:41,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:41,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:41,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:41,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:41,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:41,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:42,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:42,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-25 08:39:42,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 08:39:42,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 376 [2020-09-25 08:39:42,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:42,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:42,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:39:42,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:42,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 08:39:42,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:42,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:39:42,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:42,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:42,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:42,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:42,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 08:39:42,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:39:42,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 08:39:42,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:42,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:42,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:39:42,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:42,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:39:42,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:42,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:39:42,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:42,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:42,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:42,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 08:39:42,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:42,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:39:42,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:42,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:42,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:39:42,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:42,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 08:39:42,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:39:42,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:39:42,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:42,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:42,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:42,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:39:42,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:42,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:39:42,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:42,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:42,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:39:42,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:42,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:39:42,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:39:42,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-25 08:39:42,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:42,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:42,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:42,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:42,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 08:39:42,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:39:42,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-25 08:39:42,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:42,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:42,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:39:42,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:42,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 08:39:42,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:39:42,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:39:42,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:42,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:42,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:42,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:39:42,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:42,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:39:42,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:42,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:42,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:42,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:42,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:42,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:39:42,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 08:39:42,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:42,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:42,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:42,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:39:42,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:42,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:39:42,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:42,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:42,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:42,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:42,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:42,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:39:42,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-25 08:39:42,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:42,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:42,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:42,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:39:42,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:42,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:39:42,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:42,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:42,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:39:42,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:42,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 08:39:42,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:39:42,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-09-25 08:39:42,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:42,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:42,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:42,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:42,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 08:39:42,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:39:42,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 08:39:42,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:42,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:42,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:39:42,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 08:39:42,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 08:39:42,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:39:42,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:39:42,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:42,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:42,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:42,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 08:39:42,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:42,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:39:42,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:42,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:42,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:39:42,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:42,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 08:39:42,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:42,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:39:42,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:42,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:42,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:42,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:39:42,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:42,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:39:42,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:42,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:42,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:42,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:42,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:42,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:42,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2020-09-25 08:39:42,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:42,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:42,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:42,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:39:42,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:42,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:39:42,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:42,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:42,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:42,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:39:42,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:42,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:42,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-09-25 08:39:42,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:42,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:42,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:42,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:39:42,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:42,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:39:42,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:42,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:42,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:42,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:39:42,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:42,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:39:42,367 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 34 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-25 08:39:42,368 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [811799960] [2020-09-25 08:39:42,368 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:39:42,368 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 08:39:42,368 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235323836] [2020-09-25 08:39:42,369 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 08:39:42,369 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:39:42,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 08:39:42,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-09-25 08:39:42,370 INFO L87 Difference]: Start difference. First operand 391 states and 431 transitions. Second operand 10 states. [2020-09-25 08:39:43,482 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:39:43,757 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:39:46,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:39:46,381 INFO L93 Difference]: Finished difference Result 1454 states and 1967 transitions. [2020-09-25 08:39:46,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-25 08:39:46,381 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 238 [2020-09-25 08:39:46,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:39:46,391 INFO L225 Difference]: With dead ends: 1454 [2020-09-25 08:39:46,391 INFO L226 Difference]: Without dead ends: 1178 [2020-09-25 08:39:46,393 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=254, Invalid=738, Unknown=0, NotChecked=0, Total=992 [2020-09-25 08:39:46,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1178 states. [2020-09-25 08:39:46,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1178 to 815. [2020-09-25 08:39:46,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 815 states. [2020-09-25 08:39:46,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 815 states and 973 transitions. [2020-09-25 08:39:46,524 INFO L78 Accepts]: Start accepts. Automaton has 815 states and 973 transitions. Word has length 238 [2020-09-25 08:39:46,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:39:46,524 INFO L479 AbstractCegarLoop]: Abstraction has 815 states and 973 transitions. [2020-09-25 08:39:46,524 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 08:39:46,525 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 973 transitions. [2020-09-25 08:39:46,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2020-09-25 08:39:46,531 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:39:46,531 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:39:46,531 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 08:39:46,531 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:39:46,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:39:46,532 INFO L82 PathProgramCache]: Analyzing trace with hash 2034076941, now seen corresponding path program 1 times [2020-09-25 08:39:46,532 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:39:46,532 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1788139384] [2020-09-25 08:39:46,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:39:46,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:46,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:46,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:46,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:47,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:48,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking...