/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=1.0 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product42.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 08:39:33,536 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 08:39:33,540 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 08:39:33,567 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 08:39:33,567 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 08:39:33,569 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 08:39:33,571 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 08:39:33,573 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 08:39:33,575 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 08:39:33,576 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 08:39:33,577 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 08:39:33,578 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 08:39:33,579 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 08:39:33,580 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 08:39:33,581 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 08:39:33,586 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 08:39:33,587 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 08:39:33,590 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 08:39:33,593 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 08:39:33,596 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 08:39:33,599 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 08:39:33,602 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 08:39:33,603 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 08:39:33,604 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 08:39:33,611 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 08:39:33,611 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 08:39:33,611 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 08:39:33,616 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 08:39:33,617 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 08:39:33,620 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 08:39:33,620 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 08:39:33,622 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 08:39:33,623 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 08:39:33,624 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 08:39:33,625 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 08:39:33,626 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 08:39:33,626 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 08:39:33,627 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 08:39:33,627 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 08:39:33,628 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 08:39:33,639 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 08:39:33,640 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 08:39:33,669 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 08:39:33,669 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 08:39:33,670 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 08:39:33,671 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 08:39:33,671 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 08:39:33,671 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 08:39:33,672 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 08:39:33,672 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 08:39:33,672 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 08:39:33,672 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 08:39:33,672 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 08:39:33,673 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 08:39:33,673 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 08:39:33,673 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 08:39:33,673 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 08:39:33,674 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 08:39:33,674 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 08:39:33,674 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 08:39:33,674 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 08:39:33,675 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 08:39:33,675 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 08:39:33,675 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:39:33,675 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 08:39:33,675 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 08:39:33,676 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 08:39:33,676 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 08:39:33,676 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 08:39:33,676 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 08:39:33,677 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 08:39:33,677 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; [2020-09-25 08:39:34,192 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 08:39:34,220 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 08:39:34,226 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 08:39:34,227 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 08:39:34,229 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 08:39:34,230 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product42.cil.c [2020-09-25 08:39:34,304 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/735327acf/605336c141c7468f97aba09ab760239a/FLAGb95ec05cd [2020-09-25 08:39:34,915 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 08:39:34,916 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product42.cil.c [2020-09-25 08:39:34,939 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/735327acf/605336c141c7468f97aba09ab760239a/FLAGb95ec05cd [2020-09-25 08:39:35,166 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/735327acf/605336c141c7468f97aba09ab760239a [2020-09-25 08:39:35,178 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 08:39:35,184 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 08:39:35,186 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 08:39:35,186 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 08:39:35,190 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 08:39:35,192 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:39:35" (1/1) ... [2020-09-25 08:39:35,195 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18108b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:39:35, skipping insertion in model container [2020-09-25 08:39:35,196 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:39:35" (1/1) ... [2020-09-25 08:39:35,205 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 08:39:35,266 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 08:39:35,787 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:39:35,805 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 08:39:35,885 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:39:35,923 INFO L208 MainTranslator]: Completed translation [2020-09-25 08:39:35,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:39:35 WrapperNode [2020-09-25 08:39:35,924 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 08:39:35,925 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 08:39:35,925 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 08:39:35,925 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 08:39:35,941 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:39:35" (1/1) ... [2020-09-25 08:39:35,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:39:35" (1/1) ... [2020-09-25 08:39:35,962 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:39:35" (1/1) ... [2020-09-25 08:39:35,963 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:39:35" (1/1) ... [2020-09-25 08:39:35,996 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:39:35" (1/1) ... [2020-09-25 08:39:36,008 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:39:35" (1/1) ... [2020-09-25 08:39:36,014 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:39:35" (1/1) ... [2020-09-25 08:39:36,023 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 08:39:36,023 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 08:39:36,023 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 08:39:36,024 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 08:39:36,026 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:39:35" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:39:36,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 08:39:36,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 08:39:36,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 08:39:36,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 08:39:36,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 08:39:36,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 08:39:36,109 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 08:39:36,110 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 08:39:36,110 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 08:39:36,110 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 08:39:36,110 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 08:39:36,110 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 08:39:36,111 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 08:39:36,111 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 08:39:36,111 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 08:39:36,112 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 08:39:36,112 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 08:39:36,112 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 08:39:36,112 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 08:39:36,113 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 08:39:36,114 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 08:39:36,114 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 08:39:36,114 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 08:39:36,114 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 08:39:36,116 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 08:39:36,116 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 08:39:36,117 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 08:39:36,117 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 08:39:36,117 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 08:39:36,118 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 08:39:36,118 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 08:39:36,118 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 08:39:36,118 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 08:39:36,118 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 08:39:36,118 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 08:39:36,119 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 08:39:36,119 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 08:39:36,119 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 08:39:36,119 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 08:39:36,119 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 08:39:36,120 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 08:39:36,120 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 08:39:36,120 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 08:39:36,120 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 08:39:36,120 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 08:39:36,120 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 08:39:36,120 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 08:39:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 08:39:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 08:39:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 08:39:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 08:39:36,122 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 08:39:36,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 08:39:36,123 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 08:39:36,123 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 08:39:36,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 08:39:36,123 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 08:39:36,123 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 08:39:36,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 08:39:36,124 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 08:39:36,124 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 08:39:36,124 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 08:39:36,125 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 08:39:36,125 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 08:39:36,125 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 08:39:36,125 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 08:39:36,125 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 08:39:36,125 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 08:39:36,125 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 08:39:36,126 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 08:39:36,127 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 08:39:36,128 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 08:39:36,128 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 08:39:36,129 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 08:39:36,129 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 08:39:36,129 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 08:39:36,129 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 08:39:36,129 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 08:39:36,129 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 08:39:36,130 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 08:39:36,130 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 08:39:36,130 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 08:39:36,130 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 08:39:36,130 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 08:39:36,130 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 08:39:36,131 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 08:39:36,132 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 08:39:36,132 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 08:39:36,132 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 08:39:36,132 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 08:39:36,132 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 08:39:36,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 08:39:36,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 08:39:36,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 08:39:37,479 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 08:39:37,479 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 08:39:37,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:39:37 BoogieIcfgContainer [2020-09-25 08:39:37,487 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 08:39:37,488 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 08:39:37,488 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 08:39:37,492 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 08:39:37,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:39:35" (1/3) ... [2020-09-25 08:39:37,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60babdbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:39:37, skipping insertion in model container [2020-09-25 08:39:37,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:39:35" (2/3) ... [2020-09-25 08:39:37,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60babdbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:39:37, skipping insertion in model container [2020-09-25 08:39:37,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:39:37" (3/3) ... [2020-09-25 08:39:37,497 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product42.cil.c [2020-09-25 08:39:37,509 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 08:39:37,520 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 08:39:37,543 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 08:39:37,581 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 08:39:37,581 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 08:39:37,581 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 08:39:37,581 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 08:39:37,582 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 08:39:37,582 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 08:39:37,582 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 08:39:37,582 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 08:39:37,616 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states. [2020-09-25 08:39:37,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 08:39:37,635 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:39:37,637 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:39:37,637 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:39:37,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:39:37,647 INFO L82 PathProgramCache]: Analyzing trace with hash 769335885, now seen corresponding path program 1 times [2020-09-25 08:39:37,659 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:39:37,660 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1732395476] [2020-09-25 08:39:37,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:39:37,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:38,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:38,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:39,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:40,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:41,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:43,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:43,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 08:39:43,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:39:43,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 08:39:43,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:43,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:43,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:43,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 08:39:43,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:43,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 30 [2020-09-25 08:39:43,449 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:39:43,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:39:43,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:43,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:43,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:43,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:39:43,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:43,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-09-25 08:39:43,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:43,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:43,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:43,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:43,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:43,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:43,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:39:43,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:43,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:43,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:43,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:39:43,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:43,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:39:43,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:43,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:43,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:43,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:43,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:43,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:43,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:39:43,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:43,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:43,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:43,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:39:43,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:43,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:39:43,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:43,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:43,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:43,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:43,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:43,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:43,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:39:43,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:43,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:43,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:43,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:39:43,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:43,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 08:39:43,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:43,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:43,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:43,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:43,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:43,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:43,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:39:43,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:43,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:43,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:43,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:39:43,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:43,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:39:43,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:43,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:43,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:43,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:43,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:43,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:43,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:39:43,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:43,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:43,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:43,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:39:43,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:43,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:39:43,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:43,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:43,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:43,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:43,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:43,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:43,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 08:39:43,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:43,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:43,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:43,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:39:43,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:43,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:39:43,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:43,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:43,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:43,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:39:43,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:43,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:43,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 08:39:43,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:43,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:43,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:43,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:39:43,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:43,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:39:43,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:43,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:43,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:43,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:39:43,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:43,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:43,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:39:43,786 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1732395476] [2020-09-25 08:39:43,789 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:39:43,789 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 08:39:43,790 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550254607] [2020-09-25 08:39:43,800 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 08:39:43,802 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:39:43,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 08:39:43,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 08:39:43,824 INFO L87 Difference]: Start difference. First operand 308 states. Second operand 4 states. [2020-09-25 08:39:45,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:39:45,237 INFO L93 Difference]: Finished difference Result 478 states and 564 transitions. [2020-09-25 08:39:45,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 08:39:45,239 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-25 08:39:45,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:39:45,262 INFO L225 Difference]: With dead ends: 478 [2020-09-25 08:39:45,262 INFO L226 Difference]: Without dead ends: 306 [2020-09-25 08:39:45,271 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 08:39:45,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2020-09-25 08:39:45,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 257. [2020-09-25 08:39:45,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2020-09-25 08:39:45,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 278 transitions. [2020-09-25 08:39:45,482 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 278 transitions. Word has length 148 [2020-09-25 08:39:45,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:39:45,486 INFO L479 AbstractCegarLoop]: Abstraction has 257 states and 278 transitions. [2020-09-25 08:39:45,486 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 08:39:45,487 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 278 transitions. [2020-09-25 08:39:45,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-25 08:39:45,498 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:39:45,499 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:39:45,499 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 08:39:45,500 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:39:45,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:39:45,500 INFO L82 PathProgramCache]: Analyzing trace with hash 1712592355, now seen corresponding path program 1 times [2020-09-25 08:39:45,501 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:39:45,501 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [435162022] [2020-09-25 08:39:45,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:39:45,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:45,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:45,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:47,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:48,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:49,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:49,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:50,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:50,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-25 08:39:50,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 08:39:50,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-09-25 08:39:50,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:50,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:50,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:39:50,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 08:39:50,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 08:39:50,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 08:39:51,095 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:39:51,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:39:51,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:51,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:51,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:51,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:39:51,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:51,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-09-25 08:39:51,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:51,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:51,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:51,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:51,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:51,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:39:51,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:39:51,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:51,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:51,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:51,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:39:51,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:51,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:39:51,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:51,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:51,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:51,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:51,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:51,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:39:51,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:39:51,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:51,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:51,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:51,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:39:51,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:51,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:39:51,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:51,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:51,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:51,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:51,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:51,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:51,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:39:51,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:51,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:51,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:51,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:39:51,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:51,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:39:51,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:51,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:51,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:51,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:51,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:51,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:51,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:39:51,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:51,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:51,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:51,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:39:51,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:51,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:39:51,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:51,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:51,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:51,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:51,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:51,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:51,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:39:51,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:51,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:51,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:51,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:39:51,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:51,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:39:51,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:51,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:51,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:51,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:51,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:51,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:51,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 08:39:51,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:51,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:51,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:51,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:39:51,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:51,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:39:51,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:51,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:51,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:51,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:39:51,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:51,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:51,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 08:39:51,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:51,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:51,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:51,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:39:51,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:51,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:39:51,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:51,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:51,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:51,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:39:51,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:51,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:51,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:39:51,476 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [435162022] [2020-09-25 08:39:51,476 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:39:51,476 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 08:39:51,477 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513003333] [2020-09-25 08:39:51,481 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 08:39:51,481 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:39:51,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 08:39:51,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:39:51,482 INFO L87 Difference]: Start difference. First operand 257 states and 278 transitions. Second operand 5 states. [2020-09-25 08:39:52,264 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:39:53,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:39:53,255 INFO L93 Difference]: Finished difference Result 403 states and 455 transitions. [2020-09-25 08:39:53,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 08:39:53,256 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-25 08:39:53,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:39:53,266 INFO L225 Difference]: With dead ends: 403 [2020-09-25 08:39:53,266 INFO L226 Difference]: Without dead ends: 295 [2020-09-25 08:39:53,269 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:39:53,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2020-09-25 08:39:53,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 247. [2020-09-25 08:39:53,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2020-09-25 08:39:53,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 265 transitions. [2020-09-25 08:39:53,337 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 265 transitions. Word has length 149 [2020-09-25 08:39:53,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:39:53,339 INFO L479 AbstractCegarLoop]: Abstraction has 247 states and 265 transitions. [2020-09-25 08:39:53,339 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 08:39:53,339 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 265 transitions. [2020-09-25 08:39:53,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 08:39:53,342 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:39:53,343 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:39:53,343 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 08:39:53,343 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:39:53,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:39:53,344 INFO L82 PathProgramCache]: Analyzing trace with hash -1803359450, now seen corresponding path program 1 times [2020-09-25 08:39:53,344 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:39:53,344 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1746891550] [2020-09-25 08:39:53,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:39:53,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:53,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:53,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:54,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:54,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:56,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:58,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:58,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-09-25 08:39:58,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:39:58,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-09-25 08:39:58,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:58,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:58,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:39:58,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 08:39:58,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:39:58,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:58,725 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:39:58,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:39:58,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:58,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:58,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:58,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:39:58,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:58,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-25 08:39:58,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:58,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:58,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:58,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:58,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:58,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:58,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:39:58,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:58,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:58,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:58,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:39:58,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:58,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:39:58,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:58,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:58,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:58,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:58,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:58,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:58,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:39:58,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:58,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:58,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:58,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:39:58,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:58,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:39:58,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:58,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:58,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:58,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:58,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:58,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:58,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:39:58,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:58,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:58,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:58,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:39:58,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:58,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:39:58,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:58,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:58,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:58,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:58,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:58,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:58,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:39:58,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:58,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:58,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:58,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:39:58,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:58,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:39:58,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:58,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:58,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:58,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:58,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:58,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:58,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:39:58,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:58,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:58,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:58,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:39:58,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:58,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:39:58,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:58,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:58,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:58,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:58,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:58,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:58,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 08:39:58,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:58,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:58,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:58,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:39:58,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:58,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:39:58,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:58,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:58,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:39:58,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:58,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 08:39:58,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:58,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 08:39:58,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:58,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:58,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:58,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:39:58,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:58,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:39:58,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:58,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:58,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:58,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:39:58,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:58,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:58,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 08:39:58,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:58,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:58,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:58,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:39:58,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:58,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:39:58,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:58,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:58,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:58,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:39:58,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:58,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:59,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:39:59,001 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1746891550] [2020-09-25 08:39:59,001 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:39:59,001 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 08:39:59,002 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303070186] [2020-09-25 08:39:59,002 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 08:39:59,003 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:39:59,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 08:39:59,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 08:39:59,003 INFO L87 Difference]: Start difference. First operand 247 states and 265 transitions. Second operand 6 states. [2020-09-25 08:39:59,757 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:40:00,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:40:00,790 INFO L93 Difference]: Finished difference Result 450 states and 520 transitions. [2020-09-25 08:40:00,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 08:40:00,790 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2020-09-25 08:40:00,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:40:00,794 INFO L225 Difference]: With dead ends: 450 [2020-09-25 08:40:00,794 INFO L226 Difference]: Without dead ends: 318 [2020-09-25 08:40:00,795 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 08:40:00,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-09-25 08:40:00,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 247. [2020-09-25 08:40:00,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2020-09-25 08:40:00,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 264 transitions. [2020-09-25 08:40:00,838 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 264 transitions. Word has length 162 [2020-09-25 08:40:00,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:40:00,839 INFO L479 AbstractCegarLoop]: Abstraction has 247 states and 264 transitions. [2020-09-25 08:40:00,839 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 08:40:00,839 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 264 transitions. [2020-09-25 08:40:00,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-25 08:40:00,841 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:40:00,841 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] [2020-09-25 08:40:00,842 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 08:40:00,842 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:40:00,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:40:00,842 INFO L82 PathProgramCache]: Analyzing trace with hash 1365821347, now seen corresponding path program 1 times [2020-09-25 08:40:00,843 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:40:00,843 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [451111264] [2020-09-25 08:40:00,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:40:00,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:00,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:01,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:02,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:02,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:03,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:04,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:05,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:05,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-09-25 08:40:05,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 08:40:05,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 08:40:05,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:05,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:05,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:40:05,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 08:40:05,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 08:40:05,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:06,311 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:40:06,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:40:06,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:06,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:06,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:06,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:40:06,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:06,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-25 08:40:06,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:06,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:06,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:06,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:06,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:06,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:06,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:40:06,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:06,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:06,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:06,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:40:06,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:06,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:40:06,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:06,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:06,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:06,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:06,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:06,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:06,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:40:06,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:06,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:06,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:06,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:40:06,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:06,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:40:06,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:06,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:06,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:06,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:06,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:06,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:06,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:40:06,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:06,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:06,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:06,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:40:06,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:06,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:40:06,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:06,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:06,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:06,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:06,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:06,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:06,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:40:06,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:06,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:06,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:06,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:40:06,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:06,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:40:06,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:06,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:06,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:06,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:06,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:06,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:06,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:40:06,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:06,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:06,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:06,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:40:06,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:06,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:40:06,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:06,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:06,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:40:06,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:06,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 08:40:06,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:06,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 08:40:06,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:06,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:06,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:06,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:40:06,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:06,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 08:40:06,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:06,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:06,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:40:06,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:06,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 08:40:06,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 08:40:06,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 08:40:06,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:06,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:06,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:06,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 08:40:06,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:06,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:40:06,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:06,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:06,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:40:06,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:06,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 08:40:06,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:06,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:40:06,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:06,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:06,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:06,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:40:06,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:06,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:40:06,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:06,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:06,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:06,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:06,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:06,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:06,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 08:40:06,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:06,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:06,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:06,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:40:06,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:06,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:40:06,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:06,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:06,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:40:06,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:06,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:40:06,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:40:06,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 08:40:06,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:06,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:06,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:06,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:40:06,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:06,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:40:06,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:06,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:06,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:40:06,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:06,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:40:06,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:06,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:40:06,644 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [451111264] [2020-09-25 08:40:06,644 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:40:06,645 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 08:40:06,646 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195338420] [2020-09-25 08:40:06,647 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 08:40:06,647 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:40:06,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 08:40:06,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:40:06,650 INFO L87 Difference]: Start difference. First operand 247 states and 264 transitions. Second operand 7 states. [2020-09-25 08:40:07,203 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:40:09,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:40:09,709 INFO L93 Difference]: Finished difference Result 656 states and 845 transitions. [2020-09-25 08:40:09,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 08:40:09,710 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 170 [2020-09-25 08:40:09,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:40:09,716 INFO L225 Difference]: With dead ends: 656 [2020-09-25 08:40:09,717 INFO L226 Difference]: Without dead ends: 653 [2020-09-25 08:40:09,718 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2020-09-25 08:40:09,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 653 states. [2020-09-25 08:40:09,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 379. [2020-09-25 08:40:09,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 379 states. [2020-09-25 08:40:09,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 415 transitions. [2020-09-25 08:40:09,793 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 415 transitions. Word has length 170 [2020-09-25 08:40:09,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:40:09,794 INFO L479 AbstractCegarLoop]: Abstraction has 379 states and 415 transitions. [2020-09-25 08:40:09,794 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 08:40:09,794 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 415 transitions. [2020-09-25 08:40:09,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-09-25 08:40:09,798 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:40:09,798 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:40:09,799 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 08:40:09,799 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:40:09,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:40:09,799 INFO L82 PathProgramCache]: Analyzing trace with hash 506560584, now seen corresponding path program 1 times [2020-09-25 08:40:09,800 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:40:09,800 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [800355634] [2020-09-25 08:40:09,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:40:09,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:09,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:10,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:10,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:11,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:11,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:12,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:12,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:13,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:14,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:14,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 279 [2020-09-25 08:40:14,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 08:40:14,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 08:40:14,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:14,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:14,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:40:14,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 159 [2020-09-25 08:40:14,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 08:40:14,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:15,167 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:40:15,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:40:15,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:15,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:15,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:15,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:40:15,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:15,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-25 08:40:15,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:15,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:15,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:15,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:15,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:15,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:15,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:40:15,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:15,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:15,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:15,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:40:15,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:15,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:40:15,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:15,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:15,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:15,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:15,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:15,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:15,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:40:15,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:15,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:15,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:15,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:40:15,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:15,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:40:15,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:15,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:15,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:15,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:15,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:15,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:15,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:40:15,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:15,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:15,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:15,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:40:15,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:15,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:40:15,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:15,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:15,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:15,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:15,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:15,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:15,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:40:15,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:15,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:15,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:15,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:40:15,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:15,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:40:15,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:15,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:15,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:15,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:15,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:15,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:15,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:40:15,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:15,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:15,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:15,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:40:15,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:15,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:40:15,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:15,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:15,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:15,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:15,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:15,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:15,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 08:40:15,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:15,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:15,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:15,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:40:15,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:15,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:40:15,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:15,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:15,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:15,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:15,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:15,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:15,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 08:40:15,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:15,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:15,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:15,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:15,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:15,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 08:40:15,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:40:15,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-09-25 08:40:15,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:15,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:15,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:40:15,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 08:40:15,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 08:40:15,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:15,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:40:15,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:15,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:15,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:15,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:15,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 08:40:15,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:40:15,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 08:40:15,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:15,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:15,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:40:15,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 08:40:15,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 08:40:15,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:15,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:40:15,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:15,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:15,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:15,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:40:15,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:15,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:40:15,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:15,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:15,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:40:15,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:15,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:40:15,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:15,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 08:40:15,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:15,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:15,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:15,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 08:40:15,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:15,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-25 08:40:15,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:15,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:15,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:40:15,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 08:40:15,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 08:40:15,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:15,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:40:15,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:15,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:15,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:15,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:40:15,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:15,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:40:15,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:15,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:15,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:15,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:15,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:15,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:15,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 08:40:15,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:15,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:15,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:15,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:40:15,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:15,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:40:15,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:15,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:15,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:40:15,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:15,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:40:15,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:15,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-25 08:40:15,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:15,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:15,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:15,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:40:15,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:15,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:40:15,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:15,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:15,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:40:15,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:15,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 08:40:15,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:15,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-09-25 08:40:15,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:15,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:15,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:15,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 08:40:15,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:15,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:40:15,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:15,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:15,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:40:15,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 08:40:15,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 08:40:15,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:40:15,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:40:15,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:15,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:15,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:15,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:40:15,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:15,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:40:15,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:15,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:15,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:40:15,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:15,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:40:15,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:15,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-09-25 08:40:15,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:15,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:15,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:15,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:40:15,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:15,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:40:15,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:15,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:15,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:15,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:40:15,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:15,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:15,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2020-09-25 08:40:15,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:15,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:15,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:15,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:40:15,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:15,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:40:15,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:15,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:15,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:15,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:40:15,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:15,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:40:15,992 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 30 proven. 5 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-25 08:40:15,993 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [800355634] [2020-09-25 08:40:15,993 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:40:15,993 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-25 08:40:15,993 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314831601] [2020-09-25 08:40:15,994 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 08:40:15,994 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:40:15,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 08:40:15,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2020-09-25 08:40:15,995 INFO L87 Difference]: Start difference. First operand 379 states and 415 transitions. Second operand 15 states. [2020-09-25 08:40:16,632 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:40:18,757 WARN L193 SmtUtils]: Spent 549.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190