/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=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --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_spec1_product56.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 19:04:03,576 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 19:04:03,580 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 19:04:03,605 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 19:04:03,606 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 19:04:03,607 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 19:04:03,609 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 19:04:03,611 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 19:04:03,613 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 19:04:03,614 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 19:04:03,615 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 19:04:03,616 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 19:04:03,616 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 19:04:03,617 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 19:04:03,619 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 19:04:03,620 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 19:04:03,621 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 19:04:03,622 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 19:04:03,623 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 19:04:03,626 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 19:04:03,634 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 19:04:03,636 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 19:04:03,637 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 19:04:03,640 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 19:04:03,643 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 19:04:03,645 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 19:04:03,646 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 19:04:03,647 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 19:04:03,647 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 19:04:03,651 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 19:04:03,651 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 19:04:03,652 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 19:04:03,654 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 19:04:03,655 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 19:04:03,656 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 19:04:03,656 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 19:04:03,657 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 19:04:03,657 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 19:04:03,657 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 19:04:03,659 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 19:04:03,661 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 19:04:03,662 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 19:04:03,723 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 19:04:03,723 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 19:04:03,728 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 19:04:03,728 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 19:04:03,728 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 19:04:03,729 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 19:04:03,729 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 19:04:03,729 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 19:04:03,729 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 19:04:03,729 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 19:04:03,730 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 19:04:03,731 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 19:04:03,731 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 19:04:03,731 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 19:04:03,732 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 19:04:03,732 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 19:04:03,732 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 19:04:03,732 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 19:04:03,732 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 19:04:03,733 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 19:04:03,733 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 19:04:03,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:04:03,734 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 19:04:03,734 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 19:04:03,734 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 19:04:03,734 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 19:04:03,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 19:04:03,734 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 19:04:03,735 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 19:04:03,735 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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 19:04:04,172 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 19:04:04,189 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 19:04:04,193 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 19:04:04,195 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 19:04:04,195 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 19:04:04,196 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product56.cil.c [2020-09-24 19:04:04,273 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3f3d2dd88/77aa3e22fe034cf090d7132e94376d0c/FLAG1ea49c268 [2020-09-24 19:04:04,945 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 19:04:04,946 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product56.cil.c [2020-09-24 19:04:04,972 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3f3d2dd88/77aa3e22fe034cf090d7132e94376d0c/FLAG1ea49c268 [2020-09-24 19:04:05,123 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3f3d2dd88/77aa3e22fe034cf090d7132e94376d0c [2020-09-24 19:04:05,138 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 19:04:05,144 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 19:04:05,145 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 19:04:05,146 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 19:04:05,150 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 19:04:05,151 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:04:05" (1/1) ... [2020-09-24 19:04:05,155 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:04:05, skipping insertion in model container [2020-09-24 19:04:05,156 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:04:05" (1/1) ... [2020-09-24 19:04:05,165 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 19:04:05,240 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 19:04:05,622 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:04:05,638 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 19:04:05,844 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:04:05,889 INFO L208 MainTranslator]: Completed translation [2020-09-24 19:04:05,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:04:05 WrapperNode [2020-09-24 19:04:05,890 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 19:04:05,891 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 19:04:05,891 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 19:04:05,891 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 19:04:05,905 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:04:05" (1/1) ... [2020-09-24 19:04:05,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:04:05" (1/1) ... [2020-09-24 19:04:05,927 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:04:05" (1/1) ... [2020-09-24 19:04:05,927 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:04:05" (1/1) ... [2020-09-24 19:04:05,966 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:04:05" (1/1) ... [2020-09-24 19:04:05,981 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:04:05" (1/1) ... [2020-09-24 19:04:05,987 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:04:05" (1/1) ... [2020-09-24 19:04:05,995 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 19:04:05,996 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 19:04:05,996 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 19:04:05,996 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 19:04:05,998 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:04:05" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:04:06,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 19:04:06,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 19:04:06,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 19:04:06,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 19:04:06,106 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 19:04:06,106 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 19:04:06,107 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 19:04:06,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 19:04:06,109 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 19:04:06,109 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 19:04:06,109 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 19:04:06,110 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 19:04:06,110 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 19:04:06,110 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 19:04:06,110 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 19:04:06,113 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 19:04:06,113 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 19:04:06,113 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 19:04:06,113 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 19:04:06,114 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 19:04:06,114 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 19:04:06,114 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 19:04:06,115 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 19:04:06,115 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 19:04:06,115 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 19:04:06,115 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 19:04:06,115 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 19:04:06,115 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 19:04:06,116 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-24 19:04:06,116 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 19:04:06,116 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 19:04:06,116 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 19:04:06,116 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 19:04:06,117 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 19:04:06,117 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 19:04:06,117 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 19:04:06,117 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 19:04:06,118 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 19:04:06,118 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 19:04:06,118 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 19:04:06,118 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 19:04:06,118 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 19:04:06,118 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 19:04:06,119 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 19:04:06,119 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 19:04:06,119 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 19:04:06,120 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 19:04:06,120 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 19:04:06,120 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 19:04:06,120 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 19:04:06,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 19:04:06,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 19:04:06,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 19:04:06,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 19:04:06,121 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 19:04:06,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 19:04:06,122 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 19:04:06,122 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 19:04:06,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 19:04:06,122 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 19:04:06,123 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 19:04:06,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 19:04:06,123 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 19:04:06,123 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 19:04:06,123 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 19:04:06,123 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 19:04:06,124 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 19:04:06,124 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 19:04:06,124 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 19:04:06,124 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 19:04:06,125 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 19:04:06,126 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 19:04:06,127 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 19:04:06,128 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 19:04:06,128 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 19:04:06,128 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 19:04:06,128 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 19:04:06,128 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 19:04:06,129 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 19:04:06,129 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-24 19:04:06,129 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 19:04:06,129 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 19:04:06,131 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 19:04:06,132 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 19:04:06,132 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 19:04:06,132 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 19:04:06,133 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 19:04:06,133 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 19:04:06,135 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 19:04:06,135 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 19:04:06,136 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 19:04:06,136 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 19:04:06,137 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 19:04:06,137 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 19:04:06,137 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 19:04:06,137 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 19:04:06,138 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 19:04:06,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 19:04:06,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 19:04:06,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 19:04:07,485 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 19:04:07,486 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 19:04:07,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:04:07 BoogieIcfgContainer [2020-09-24 19:04:07,493 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 19:04:07,498 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 19:04:07,498 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 19:04:07,501 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 19:04:07,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 07:04:05" (1/3) ... [2020-09-24 19:04:07,503 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d77b8b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:04:07, skipping insertion in model container [2020-09-24 19:04:07,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:04:05" (2/3) ... [2020-09-24 19:04:07,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d77b8b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:04:07, skipping insertion in model container [2020-09-24 19:04:07,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:04:07" (3/3) ... [2020-09-24 19:04:07,506 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product56.cil.c [2020-09-24 19:04:07,518 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 19:04:07,529 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 19:04:07,551 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 19:04:07,579 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 19:04:07,579 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 19:04:07,579 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 19:04:07,579 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 19:04:07,579 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 19:04:07,580 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 19:04:07,580 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 19:04:07,580 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 19:04:07,609 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states. [2020-09-24 19:04:07,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 19:04:07,628 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:04:07,629 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:04:07,630 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:04:07,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:04:07,638 INFO L82 PathProgramCache]: Analyzing trace with hash 826882234, now seen corresponding path program 1 times [2020-09-24 19:04:07,649 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:04:07,650 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [798240407] [2020-09-24 19:04:07,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:04:07,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:08,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:08,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:09,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:09,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 19:04:09,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:04:09,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1055 [2020-09-24 19:04:09,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:09,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:09,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 19:04:09,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:09,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 19:04:09,439 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:04:09,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:04:09,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:09,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:09,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:09,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:04:09,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:09,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-09-24 19:04:09,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:09,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:09,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:09,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:09,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:09,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:04:09,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:09,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:09,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:09,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:04:09,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:09,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:04:09,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:09,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:09,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:09,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:09,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:09,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:04:09,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:09,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:09,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:09,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:04:09,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:09,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:04:09,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:09,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:09,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:09,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:09,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:09,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:04:09,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:09,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:09,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:09,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:04:09,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:09,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:04:09,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:09,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:09,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:09,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:09,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:09,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:04:09,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:09,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:09,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:09,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:04:09,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:09,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:04:09,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:09,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:09,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:09,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:09,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:09,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 19:04:09,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:09,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:09,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:09,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:04:09,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:09,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:04:09,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:09,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:09,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:04:09,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:09,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:09,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 19:04:09,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:09,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:09,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:09,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:04:09,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:09,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:04:09,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:09,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:09,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:04:09,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:09,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:09,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:04:09,770 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [798240407] [2020-09-24 19:04:09,772 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:04:09,773 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 19:04:09,774 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099651608] [2020-09-24 19:04:09,781 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 19:04:09,781 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:04:09,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 19:04:09,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:04:09,804 INFO L87 Difference]: Start difference. First operand 342 states. Second operand 3 states. [2020-09-24 19:04:11,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:04:11,482 INFO L93 Difference]: Finished difference Result 554 states and 662 transitions. [2020-09-24 19:04:11,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 19:04:11,486 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-24 19:04:11,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:04:11,508 INFO L225 Difference]: With dead ends: 554 [2020-09-24 19:04:11,508 INFO L226 Difference]: Without dead ends: 337 [2020-09-24 19:04:11,515 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:04:11,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2020-09-24 19:04:11,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 291. [2020-09-24 19:04:11,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 291 states. [2020-09-24 19:04:11,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 320 transitions. [2020-09-24 19:04:11,627 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 320 transitions. Word has length 142 [2020-09-24 19:04:11,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:04:11,628 INFO L479 AbstractCegarLoop]: Abstraction has 291 states and 320 transitions. [2020-09-24 19:04:11,629 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 19:04:11,629 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 320 transitions. [2020-09-24 19:04:11,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-24 19:04:11,634 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:04:11,634 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] [2020-09-24 19:04:11,634 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 19:04:11,635 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:04:11,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:04:11,635 INFO L82 PathProgramCache]: Analyzing trace with hash -820599246, now seen corresponding path program 1 times [2020-09-24 19:04:11,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:04:11,636 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2137500777] [2020-09-24 19:04:11,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:04:11,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:11,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:11,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:12,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:12,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-24 19:04:12,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:04:12,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-24 19:04:12,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:12,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:04:12,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 19:04:12,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:04:12,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:12,985 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:04:12,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:04:12,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:13,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:13,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:13,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:04:13,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:13,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-24 19:04:13,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:13,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:13,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:13,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:13,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:13,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:04:13,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:13,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:13,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:13,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:04:13,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:13,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:04:13,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:13,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:13,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:13,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:13,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:13,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:04:13,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:13,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:13,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:13,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:04:13,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:13,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:04:13,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:13,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:13,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:13,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:13,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:13,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:04:13,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:13,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:13,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:13,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:04:13,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:13,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:04:13,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:13,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:13,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:13,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:13,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:13,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:04:13,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:13,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:13,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:13,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:04:13,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:13,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:04:13,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:13,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:13,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:13,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:13,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:13,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 19:04:13,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:13,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:13,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:13,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:04:13,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:13,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:04:13,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:13,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:13,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:04:13,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:13,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:13,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 19:04:13,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:13,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:13,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:13,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:04:13,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:13,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:04:13,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:13,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:13,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:04:13,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:13,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:13,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:04:13,219 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2137500777] [2020-09-24 19:04:13,220 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:04:13,220 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 19:04:13,220 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749187115] [2020-09-24 19:04:13,222 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 19:04:13,223 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:04:13,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 19:04:13,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 19:04:13,224 INFO L87 Difference]: Start difference. First operand 291 states and 320 transitions. Second operand 4 states. [2020-09-24 19:04:14,145 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:04:15,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:04:15,478 INFO L93 Difference]: Finished difference Result 461 states and 525 transitions. [2020-09-24 19:04:15,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 19:04:15,478 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-24 19:04:15,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:04:15,483 INFO L225 Difference]: With dead ends: 461 [2020-09-24 19:04:15,483 INFO L226 Difference]: Without dead ends: 320 [2020-09-24 19:04:15,485 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:04:15,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2020-09-24 19:04:15,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 281. [2020-09-24 19:04:15,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2020-09-24 19:04:15,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 307 transitions. [2020-09-24 19:04:15,537 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 307 transitions. Word has length 143 [2020-09-24 19:04:15,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:04:15,537 INFO L479 AbstractCegarLoop]: Abstraction has 281 states and 307 transitions. [2020-09-24 19:04:15,538 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 19:04:15,538 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 307 transitions. [2020-09-24 19:04:15,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-24 19:04:15,541 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:04:15,541 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] [2020-09-24 19:04:15,541 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 19:04:15,542 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:04:15,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:04:15,542 INFO L82 PathProgramCache]: Analyzing trace with hash 1576489327, now seen corresponding path program 1 times [2020-09-24 19:04:15,542 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:04:15,543 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1895257623] [2020-09-24 19:04:15,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:04:15,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:15,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:15,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:16,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:16,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:16,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 19:04:16,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:04:16,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1007 [2020-09-24 19:04:16,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:16,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:04:16,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-24 19:04:16,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:04:16,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:17,108 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:04:17,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:04:17,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:17,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:17,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:17,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:04:17,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:17,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-09-24 19:04:17,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:17,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:17,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:17,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:17,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:17,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:04:17,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:17,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:17,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:17,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:04:17,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:17,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:04:17,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:17,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:17,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:17,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:17,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:17,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:04:17,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:17,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:17,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:17,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:04:17,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:17,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:04:17,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:17,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:17,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:17,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:17,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:17,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:04:17,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:17,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:17,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:17,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:04:17,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:17,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:04:17,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:17,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:17,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:17,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:17,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 19:04:17,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:04:17,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:17,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:17,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:17,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:04:17,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:17,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:04:17,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:17,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:17,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:17,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:17,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:17,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 19:04:17,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:17,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:17,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:17,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:04:17,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:17,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:04:17,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:17,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:04:17,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:17,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 19:04:17,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:17,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 19:04:17,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:17,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:17,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:17,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:04:17,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:17,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:04:17,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:17,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:17,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:04:17,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:17,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:17,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 19:04:17,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:17,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:17,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:17,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:04:17,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:17,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:04:17,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:17,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:17,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:04:17,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:17,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 19:04:17,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:04:17,474 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1895257623] [2020-09-24 19:04:17,474 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:04:17,475 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 19:04:17,475 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243620742] [2020-09-24 19:04:17,477 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 19:04:17,477 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:04:17,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 19:04:17,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:04:17,480 INFO L87 Difference]: Start difference. First operand 281 states and 307 transitions. Second operand 5 states. [2020-09-24 19:04:17,976 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:04:20,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:04:20,448 INFO L93 Difference]: Finished difference Result 697 states and 814 transitions. [2020-09-24 19:04:20,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 19:04:20,449 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-24 19:04:20,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:04:20,455 INFO L225 Difference]: With dead ends: 697 [2020-09-24 19:04:20,455 INFO L226 Difference]: Without dead ends: 526 [2020-09-24 19:04:20,457 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:04:20,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2020-09-24 19:04:20,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 442. [2020-09-24 19:04:20,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2020-09-24 19:04:20,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 495 transitions. [2020-09-24 19:04:20,536 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 495 transitions. Word has length 156 [2020-09-24 19:04:20,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:04:20,537 INFO L479 AbstractCegarLoop]: Abstraction has 442 states and 495 transitions. [2020-09-24 19:04:20,537 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 19:04:20,538 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 495 transitions. [2020-09-24 19:04:20,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-24 19:04:20,541 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:04:20,541 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] [2020-09-24 19:04:20,541 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 19:04:20,541 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:04:20,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:04:20,542 INFO L82 PathProgramCache]: Analyzing trace with hash -1953483698, now seen corresponding path program 1 times [2020-09-24 19:04:20,542 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:04:20,542 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2011432982] [2020-09-24 19:04:20,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:04:20,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:20,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:21,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:21,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:21,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-24 19:04:21,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:04:21,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1074 [2020-09-24 19:04:21,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:21,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 19:04:21,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 150 [2020-09-24 19:04:21,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 19:04:21,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:22,195 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:04:22,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:04:22,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:22,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:22,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:22,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:04:22,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:22,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-09-24 19:04:22,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:22,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:22,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:22,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:22,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:22,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:04:22,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:22,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:22,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:22,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:04:22,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:22,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:04:22,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:22,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:22,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:22,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:22,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:22,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:04:22,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:22,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:22,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:22,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:04:22,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:22,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:04:22,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:22,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:22,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:22,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:22,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:22,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:04:22,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:22,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:22,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:22,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:04:22,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:22,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:04:22,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:22,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:22,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:22,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:22,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:22,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:04:22,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:22,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:22,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:22,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:04:22,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:22,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:04:22,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:22,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:22,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:22,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:22,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:22,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 19:04:22,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:22,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:22,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:22,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:04:22,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:22,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:04:22,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:22,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:04:22,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:22,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 19:04:22,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:22,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 19:04:22,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:22,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:22,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:22,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:04:22,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:22,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 19:04:22,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:22,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:04:22,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:22,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:04:22,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:22,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 19:04:22,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:22,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:22,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:22,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:04:22,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:22,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 19:04:22,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:22,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:04:22,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:22,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:04:22,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:22,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:04:22,746 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2011432982] [2020-09-24 19:04:22,747 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:04:22,747 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 19:04:22,748 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622469118] [2020-09-24 19:04:22,749 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 19:04:22,750 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:04:22,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 19:04:22,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 19:04:22,751 INFO L87 Difference]: Start difference. First operand 442 states and 495 transitions. Second operand 9 states. [2020-09-24 19:04:23,335 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:04:24,591 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:04:24,977 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:04:25,321 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:04:25,677 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:04:26,004 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:04:26,704 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:04:27,015 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:04:27,395 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:04:28,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:04:28,554 INFO L93 Difference]: Finished difference Result 1045 states and 1259 transitions. [2020-09-24 19:04:28,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 19:04:28,555 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 161 [2020-09-24 19:04:28,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:04:28,562 INFO L225 Difference]: With dead ends: 1045 [2020-09-24 19:04:28,562 INFO L226 Difference]: Without dead ends: 713 [2020-09-24 19:04:28,564 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-24 19:04:28,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2020-09-24 19:04:28,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 636. [2020-09-24 19:04:28,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 636 states. [2020-09-24 19:04:28,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 728 transitions. [2020-09-24 19:04:28,683 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 728 transitions. Word has length 161 [2020-09-24 19:04:28,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:04:28,684 INFO L479 AbstractCegarLoop]: Abstraction has 636 states and 728 transitions. [2020-09-24 19:04:28,684 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 19:04:28,684 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 728 transitions. [2020-09-24 19:04:28,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-24 19:04:28,687 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:04:28,687 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:04:28,688 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 19:04:28,688 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:04:28,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:04:28,688 INFO L82 PathProgramCache]: Analyzing trace with hash -1255055236, now seen corresponding path program 1 times [2020-09-24 19:04:28,689 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:04:28,689 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [924318803] [2020-09-24 19:04:28,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:04:28,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:28,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:29,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:29,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:29,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-09-24 19:04:29,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:04:29,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1013 [2020-09-24 19:04:29,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:29,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:04:29,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-09-24 19:04:29,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:04:29,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:30,115 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:04:30,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:04:30,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:30,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:30,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:30,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:04:30,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:30,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-24 19:04:30,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:30,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:30,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:30,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:30,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:30,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:04:30,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:30,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:30,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:30,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:04:30,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:30,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:04:30,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:30,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:30,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:30,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:30,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:30,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:04:30,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:30,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:30,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:30,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:04:30,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:30,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:04:30,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:30,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:30,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:30,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:30,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:30,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:04:30,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:30,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:30,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:30,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:04:30,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:30,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:04:30,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:30,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:30,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:30,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:30,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:30,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:04:30,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:30,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:30,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:30,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:04:30,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:30,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:04:30,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:30,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:30,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:30,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:30,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:30,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 19:04:30,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:30,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:30,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:30,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:04:30,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:30,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:04:30,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:30,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:30,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:30,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:30,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:30,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 19:04:30,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:30,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:30,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:30,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 19:04:30,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:30,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-24 19:04:30,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:30,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:04:30,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-24 19:04:30,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:04:30,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:30,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:04:30,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:30,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:30,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:30,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 19:04:30,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:30,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-09-24 19:04:30,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:30,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:04:30,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 19:04:30,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:04:30,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:30,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:04:30,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:30,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:30,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:30,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 19:04:30,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:30,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-24 19:04:30,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:30,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:04:30,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 19:04:30,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:04:30,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:30,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:04:30,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:30,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:30,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:30,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:04:30,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:30,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-24 19:04:30,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:30,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:04:30,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 19:04:30,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:04:30,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:30,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:04:30,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:30,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:30,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:30,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:04:30,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:30,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:04:30,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:30,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:04:30,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:30,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:04:30,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:30,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:04:30,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:30,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:30,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:30,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:04:30,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:30,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:04:30,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:30,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:30,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 19:04:30,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:30,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:30,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-24 19:04:30,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:30,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:30,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:30,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:04:30,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:30,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:04:30,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:30,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:30,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:04:30,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:30,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:30,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-24 19:04:30,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:30,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:30,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:30,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:04:30,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:30,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:04:30,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:30,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:30,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:04:30,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:30,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:30,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:04:30,736 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [924318803] [2020-09-24 19:04:30,736 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:04:30,737 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 19:04:30,737 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605958105] [2020-09-24 19:04:30,737 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 19:04:30,738 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:04:30,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 19:04:30,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-24 19:04:30,738 INFO L87 Difference]: Start difference. First operand 636 states and 728 transitions. Second operand 9 states. [2020-09-24 19:04:31,971 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:04:32,274 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:04:32,620 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:04:32,953 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:04:33,257 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:04:34,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:04:34,730 INFO L93 Difference]: Finished difference Result 1343 states and 1656 transitions. [2020-09-24 19:04:34,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 19:04:34,732 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 199 [2020-09-24 19:04:34,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:04:34,740 INFO L225 Difference]: With dead ends: 1343 [2020-09-24 19:04:34,740 INFO L226 Difference]: Without dead ends: 817 [2020-09-24 19:04:34,742 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-24 19:04:34,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 817 states. [2020-09-24 19:04:34,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 817 to 651. [2020-09-24 19:04:34,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 651 states. [2020-09-24 19:04:34,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 744 transitions. [2020-09-24 19:04:34,847 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 744 transitions. Word has length 199 [2020-09-24 19:04:34,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:04:34,848 INFO L479 AbstractCegarLoop]: Abstraction has 651 states and 744 transitions. [2020-09-24 19:04:34,848 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 19:04:34,848 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 744 transitions. [2020-09-24 19:04:34,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-24 19:04:34,852 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:04:34,852 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:04:34,853 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 19:04:34,853 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:04:34,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:04:34,853 INFO L82 PathProgramCache]: Analyzing trace with hash -1668686628, now seen corresponding path program 1 times [2020-09-24 19:04:34,854 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:04:34,854 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1985284771] [2020-09-24 19:04:34,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:04:34,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:34,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:35,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:35,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:35,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-09-24 19:04:35,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:04:35,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1037 [2020-09-24 19:04:35,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:35,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:04:35,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 188 [2020-09-24 19:04:35,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:04:35,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:36,260 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:04:36,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:04:36,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:36,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:36,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:36,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:04:36,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:36,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-09-24 19:04:36,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:36,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:36,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:36,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:36,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:36,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:04:36,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:36,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:36,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:36,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:04:36,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:36,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:04:36,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:36,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:36,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:36,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:36,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:36,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:04:36,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:36,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:36,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:36,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:04:36,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:36,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:04:36,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:36,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:36,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:36,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:36,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:36,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:04:36,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:36,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:36,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:36,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:04:36,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:36,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:04:36,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:36,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:36,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:36,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:36,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:36,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:04:36,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:36,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:36,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:36,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:04:36,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:36,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:04:36,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:36,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:36,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:36,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:36,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:36,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 19:04:36,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:36,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:36,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:36,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:04:36,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:36,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:04:36,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:36,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:36,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:36,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:36,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:36,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 19:04:36,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:36,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:36,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:36,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 19:04:36,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:36,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-09-24 19:04:36,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:36,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:04:36,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 19:04:36,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:04:36,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:36,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:04:36,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:36,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:36,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:36,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 19:04:36,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:36,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-24 19:04:36,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:36,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:04:36,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 19:04:36,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:04:36,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:36,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:04:36,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:36,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:36,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:36,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 19:04:36,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:36,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-24 19:04:36,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:36,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:04:36,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 19:04:36,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:04:36,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:36,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:04:36,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:36,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:36,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:36,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:04:36,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:36,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-24 19:04:36,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:36,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:04:36,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:36,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 19:04:36,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:36,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:04:36,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:36,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:36,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:36,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:04:36,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:36,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:04:36,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:36,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:36,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:36,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:36,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:36,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:04:36,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:36,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:36,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:36,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:04:36,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:36,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:04:36,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:36,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:36,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 19:04:36,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:36,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:36,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-24 19:04:36,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:36,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:36,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:36,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:04:36,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:36,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:04:36,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:36,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:36,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:04:36,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:36,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:36,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-24 19:04:36,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:36,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:36,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:36,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:04:36,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:36,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:04:36,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:36,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:36,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:04:36,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:36,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:37,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:04:37,023 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1985284771] [2020-09-24 19:04:37,024 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:04:37,025 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 19:04:37,026 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201211454] [2020-09-24 19:04:37,027 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 19:04:37,027 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:04:37,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 19:04:37,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 19:04:37,029 INFO L87 Difference]: Start difference. First operand 651 states and 744 transitions. Second operand 10 states. [2020-09-24 19:04:38,697 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:04:38,972 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:04:39,260 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:04:39,604 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:04:39,926 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:04:40,192 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:04:41,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:04:41,522 INFO L93 Difference]: Finished difference Result 1364 states and 1649 transitions. [2020-09-24 19:04:41,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 19:04:41,523 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 199 [2020-09-24 19:04:41,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:04:41,528 INFO L225 Difference]: With dead ends: 1364 [2020-09-24 19:04:41,528 INFO L226 Difference]: Without dead ends: 823 [2020-09-24 19:04:41,530 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-24 19:04:41,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 823 states. [2020-09-24 19:04:41,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 823 to 667. [2020-09-24 19:04:41,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 667 states. [2020-09-24 19:04:41,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 760 transitions. [2020-09-24 19:04:41,614 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 760 transitions. Word has length 199 [2020-09-24 19:04:41,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:04:41,615 INFO L479 AbstractCegarLoop]: Abstraction has 667 states and 760 transitions. [2020-09-24 19:04:41,615 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 19:04:41,615 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 760 transitions. [2020-09-24 19:04:41,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-24 19:04:41,619 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:04:41,619 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:04:41,619 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 19:04:41,619 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:04:41,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:04:41,620 INFO L82 PathProgramCache]: Analyzing trace with hash -1324573345, now seen corresponding path program 1 times [2020-09-24 19:04:41,620 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:04:41,620 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [678248642] [2020-09-24 19:04:41,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:04:41,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:41,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:42,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:42,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:42,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-09-24 19:04:42,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:04:42,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1040 [2020-09-24 19:04:42,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:42,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 19:04:42,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 19:04:42,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-09-24 19:04:42,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:43,022 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:04:43,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:04:43,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:43,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:43,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:43,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:04:43,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:43,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 260 [2020-09-24 19:04:43,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:43,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:04:43,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:43,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 19:04:43,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:43,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:04:43,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:43,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:43,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:43,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:04:43,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:43,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:04:43,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:43,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:04:43,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:43,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:04:43,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:43,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:04:43,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:43,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:43,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:43,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:04:43,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:43,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:04:43,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:43,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:04:43,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:43,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:04:43,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:43,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:04:43,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:43,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:43,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:43,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:04:43,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:43,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:04:43,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:43,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:04:43,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:43,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:04:43,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:43,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:04:43,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:43,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:43,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:43,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:04:43,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:43,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:04:43,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:43,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:04:43,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:43,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:04:43,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:43,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 19:04:43,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:43,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:43,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:43,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:04:43,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:43,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:04:43,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:43,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:04:43,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:43,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 19:04:43,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:43,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 19:04:43,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:43,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:43,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:43,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 19:04:43,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:43,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-24 19:04:43,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:43,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:04:43,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-24 19:04:43,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 19:04:43,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:43,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:04:43,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:43,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:43,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:43,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 19:04:43,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:43,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 19:04:43,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:43,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:04:43,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:43,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 19:04:43,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:43,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:04:43,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:43,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:43,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:43,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 19:04:43,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:43,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 19:04:43,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:43,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:04:43,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:43,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 19:04:43,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:43,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:04:43,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:43,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:43,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:43,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:04:43,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:43,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 19:04:43,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:43,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:04:43,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:43,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:04:43,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:43,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:04:43,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:43,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:43,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:43,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:04:43,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:43,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:04:43,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:43,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:04:43,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:43,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:04:43,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:43,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:04:43,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:43,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:43,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:43,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:04:43,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:43,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:04:43,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:43,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:04:43,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:43,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 19:04:43,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:43,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-24 19:04:43,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:43,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:43,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:43,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:04:43,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:43,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:04:43,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:43,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:43,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:04:43,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:43,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:43,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-24 19:04:43,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:43,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:43,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:43,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:04:43,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:43,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:04:43,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:43,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:43,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:04:43,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:43,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:43,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:04:43,690 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [678248642] [2020-09-24 19:04:43,690 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:04:43,691 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 19:04:43,691 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092214638] [2020-09-24 19:04:43,692 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 19:04:43,692 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:04:43,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 19:04:43,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:04:43,693 INFO L87 Difference]: Start difference. First operand 667 states and 760 transitions. Second operand 7 states. [2020-09-24 19:04:44,201 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:04:45,358 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:04:49,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:04:49,388 INFO L93 Difference]: Finished difference Result 2341 states and 2994 transitions. [2020-09-24 19:04:49,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 19:04:49,389 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 199 [2020-09-24 19:04:49,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:04:49,401 INFO L225 Difference]: With dead ends: 2341 [2020-09-24 19:04:49,401 INFO L226 Difference]: Without dead ends: 1784 [2020-09-24 19:04:49,404 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2020-09-24 19:04:49,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1784 states. [2020-09-24 19:04:49,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1784 to 1422. [2020-09-24 19:04:49,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1422 states. [2020-09-24 19:04:49,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1422 states to 1422 states and 1685 transitions. [2020-09-24 19:04:49,592 INFO L78 Accepts]: Start accepts. Automaton has 1422 states and 1685 transitions. Word has length 199 [2020-09-24 19:04:49,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:04:49,592 INFO L479 AbstractCegarLoop]: Abstraction has 1422 states and 1685 transitions. [2020-09-24 19:04:49,592 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 19:04:49,593 INFO L276 IsEmpty]: Start isEmpty. Operand 1422 states and 1685 transitions. [2020-09-24 19:04:49,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-09-24 19:04:49,596 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:04:49,596 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:04:49,596 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 19:04:49,597 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:04:49,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:04:49,597 INFO L82 PathProgramCache]: Analyzing trace with hash -1966228177, now seen corresponding path program 1 times [2020-09-24 19:04:49,597 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:04:49,597 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [218336113] [2020-09-24 19:04:49,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:04:49,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:49,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:50,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:50,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 249 [2020-09-24 19:04:50,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:50,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1019 [2020-09-24 19:04:50,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:50,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 19:04:50,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-24 19:04:50,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-09-24 19:04:50,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:50,955 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:04:50,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:04:50,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:51,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:51,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:51,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:04:51,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:51,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 221 [2020-09-24 19:04:51,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:51,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:04:51,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:51,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 19:04:51,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:51,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:04:51,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:51,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:51,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:51,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:04:51,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:51,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:04:51,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:51,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:04:51,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:51,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:04:51,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:51,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:04:51,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:51,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:51,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:51,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:04:51,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:51,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:04:51,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:51,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:04:51,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:51,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:04:51,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:51,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:04:51,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:51,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:51,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:51,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:04:51,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:51,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:04:51,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:51,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:04:51,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:51,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:04:51,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:51,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:04:51,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:51,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:51,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:51,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:04:51,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:51,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:04:51,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:51,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:04:51,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:51,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:04:51,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:51,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 19:04:51,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:51,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:51,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:51,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:04:51,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:51,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:04:51,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:51,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:04:51,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:51,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:04:51,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:51,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 19:04:51,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:51,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:51,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:51,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:04:51,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:51,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:04:51,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:51,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:04:51,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:51,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 19:04:51,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:51,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 19:04:51,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:51,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:51,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:51,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 19:04:51,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:51,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 19:04:51,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:51,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:04:51,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:51,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-24 19:04:51,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:51,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:04:51,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:51,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:51,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:51,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 19:04:51,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:51,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 19:04:51,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:51,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:51,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:51,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:51,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:51,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:04:51,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:51,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:51,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:51,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 19:04:51,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:51,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 19:04:51,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:51,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:51,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:51,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:51,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:51,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:04:51,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:51,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:51,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:51,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:04:51,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:51,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:04:51,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:51,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:51,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:51,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:51,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:51,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:04:51,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:51,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:51,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:51,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:04:51,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:51,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:04:51,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:51,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:51,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:51,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:51,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:51,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:04:51,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:51,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:51,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:51,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:04:51,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:51,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:04:51,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:51,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:51,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:51,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:51,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:51,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-24 19:04:51,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:51,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:51,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:51,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:04:51,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:51,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 19:04:51,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:51,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:04:51,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:51,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:04:51,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:51,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-24 19:04:51,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:51,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:51,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:51,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:04:51,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:51,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:04:51,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:51,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:51,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:04:51,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:51,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:51,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:04:51,585 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [218336113] [2020-09-24 19:04:51,586 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:04:51,586 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 19:04:51,586 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037867980] [2020-09-24 19:04:51,587 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 19:04:51,587 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:04:51,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 19:04:51,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 19:04:51,587 INFO L87 Difference]: Start difference. First operand 1422 states and 1685 transitions. Second operand 11 states. [2020-09-24 19:04:52,106 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:04:53,393 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:04:53,731 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 19:04:54,082 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:04:54,408 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:04:54,757 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 190