/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=DEEPEST --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_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:40:12,528 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:40:12,533 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:40:12,583 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:40:12,583 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:40:12,584 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:40:12,586 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:40:12,588 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:40:12,590 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:40:12,591 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:40:12,592 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:40:12,594 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:40:12,594 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:40:12,595 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:40:12,596 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:40:12,597 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:40:12,599 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:40:12,600 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:40:12,602 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:40:12,604 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:40:12,605 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:40:12,606 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:40:12,608 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:40:12,609 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:40:12,611 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:40:12,612 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:40:12,612 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:40:12,613 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:40:12,613 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:40:12,615 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 00:40:12,615 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 00:40:12,616 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 00:40:12,617 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 00:40:12,618 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 00:40:12,619 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 00:40:12,619 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 00:40:12,620 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 00:40:12,620 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 00:40:12,620 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:40:12,621 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:40:12,622 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:40:12,623 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 00:40:12,649 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:40:12,649 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:40:12,650 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:40:12,651 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:40:12,651 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:40:12,651 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:40:12,651 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 00:40:12,652 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:40:12,652 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 00:40:12,652 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:40:12,652 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:40:12,652 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:40:12,653 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:40:12,653 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 00:40:12,653 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:40:12,653 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:40:12,653 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:40:12,654 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:40:12,654 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:40:12,654 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:40:12,654 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:40:12,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:40:12,655 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:40:12,655 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:40:12,655 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:40:12,655 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:40:12,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:40:12,656 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:40:12,656 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:40:12,656 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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;log-additional-information=true; [2020-09-25 00:40:13,144 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:40:13,165 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:40:13,169 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:40:13,171 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:40:13,172 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:40:13,173 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product35.cil.c [2020-09-25 00:40:13,250 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/018f7b8eb/00efdb1f97b949b48ab7a8e12c441db5/FLAG44f9c02cc [2020-09-25 00:40:13,877 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:40:13,879 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product35.cil.c [2020-09-25 00:40:13,892 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/018f7b8eb/00efdb1f97b949b48ab7a8e12c441db5/FLAG44f9c02cc [2020-09-25 00:40:14,138 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/018f7b8eb/00efdb1f97b949b48ab7a8e12c441db5 [2020-09-25 00:40:14,150 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:40:14,156 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:40:14,157 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:40:14,157 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:40:14,161 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:40:14,162 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:40:14" (1/1) ... [2020-09-25 00:40:14,166 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78532141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:40:14, skipping insertion in model container [2020-09-25 00:40:14,166 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:40:14" (1/1) ... [2020-09-25 00:40:14,174 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:40:14,224 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:40:14,605 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:40:14,620 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:40:14,821 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:40:14,858 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:40:14,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:40:14 WrapperNode [2020-09-25 00:40:14,859 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:40:14,860 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:40:14,860 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:40:14,860 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:40:14,876 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:40:14" (1/1) ... [2020-09-25 00:40:14,876 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:40:14" (1/1) ... [2020-09-25 00:40:14,897 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:40:14" (1/1) ... [2020-09-25 00:40:14,898 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:40:14" (1/1) ... [2020-09-25 00:40:14,940 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:40:14" (1/1) ... [2020-09-25 00:40:14,963 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:40:14" (1/1) ... [2020-09-25 00:40:14,968 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:40:14" (1/1) ... [2020-09-25 00:40:14,976 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:40:14,977 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:40:14,977 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:40:14,977 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:40:14,981 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:40:14" (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 00:40:15,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:40:15,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:40:15,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 00:40:15,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 00:40:15,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 00:40:15,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 00:40:15,094 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 00:40:15,094 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 00:40:15,095 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 00:40:15,095 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 00:40:15,095 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 00:40:15,095 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 00:40:15,096 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 00:40:15,096 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 00:40:15,096 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 00:40:15,097 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 00:40:15,097 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 00:40:15,097 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 00:40:15,097 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 00:40:15,098 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 00:40:15,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 00:40:15,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 00:40:15,099 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 00:40:15,099 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 00:40:15,099 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 00:40:15,100 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 00:40:15,100 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 00:40:15,100 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 00:40:15,100 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 00:40:15,100 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 00:40:15,100 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 00:40:15,101 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:40:15,101 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 00:40:15,101 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 00:40:15,101 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 00:40:15,101 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 00:40:15,101 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 00:40:15,102 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 00:40:15,102 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 00:40:15,102 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:40:15,104 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 00:40:15,104 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 00:40:15,104 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 00:40:15,105 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 00:40:15,105 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 00:40:15,105 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 00:40:15,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 00:40:15,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 00:40:15,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 00:40:15,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 00:40:15,107 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 00:40:15,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 00:40:15,107 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 00:40:15,107 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 00:40:15,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 00:40:15,108 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 00:40:15,108 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 00:40:15,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 00:40:15,108 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 00:40:15,109 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 00:40:15,109 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 00:40:15,109 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 00:40:15,109 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 00:40:15,110 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 00:40:15,110 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 00:40:15,110 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 00:40:15,110 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 00:40:15,111 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 00:40:15,111 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 00:40:15,111 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 00:40:15,111 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 00:40:15,112 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 00:40:15,113 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 00:40:15,113 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 00:40:15,114 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 00:40:15,114 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 00:40:15,114 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 00:40:15,114 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 00:40:15,114 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 00:40:15,114 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 00:40:15,114 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 00:40:15,115 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 00:40:15,115 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 00:40:15,115 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 00:40:15,115 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 00:40:15,115 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 00:40:15,115 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 00:40:15,115 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:40:15,116 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 00:40:15,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:40:15,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 00:40:15,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:40:16,295 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:40:16,296 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 00:40:16,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:40:16 BoogieIcfgContainer [2020-09-25 00:40:16,304 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:40:16,305 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:40:16,306 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:40:16,310 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:40:16,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:40:14" (1/3) ... [2020-09-25 00:40:16,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f233d39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:40:16, skipping insertion in model container [2020-09-25 00:40:16,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:40:14" (2/3) ... [2020-09-25 00:40:16,312 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f233d39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:40:16, skipping insertion in model container [2020-09-25 00:40:16,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:40:16" (3/3) ... [2020-09-25 00:40:16,315 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product35.cil.c [2020-09-25 00:40:16,328 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:40:16,341 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 00:40:16,368 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 00:40:16,404 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:40:16,404 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:40:16,405 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:40:16,405 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:40:16,405 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:40:16,405 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:40:16,405 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:40:16,405 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:40:16,439 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states. [2020-09-25 00:40:16,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 00:40:16,460 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:40:16,461 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 00:40:16,462 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:40:16,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:40:16,472 INFO L82 PathProgramCache]: Analyzing trace with hash -1842377824, now seen corresponding path program 1 times [2020-09-25 00:40:16,484 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:40:16,485 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1602223674] [2020-09-25 00:40:16,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:40:16,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:16,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:17,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:18,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:19,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:20,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:21,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:21,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 00:40:21,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 00:40:21,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 00:40:21,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:21,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:40:21,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 145 [2020-09-25 00:40:21,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 00:40:21,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 00:40:22,372 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:40:22,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:40:22,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:22,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:22,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:22,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 00:40:22,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:22,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-09-25 00:40:22,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:22,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:22,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:22,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:22,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:22,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 00:40:22,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:22,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:22,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:22,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:40:22,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:22,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:40:22,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:22,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:22,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:22,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:22,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:22,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 00:40:22,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:22,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:22,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:22,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:40:22,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:22,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:40:22,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:22,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:22,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:22,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:22,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:22,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 00:40:22,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:22,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:22,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:22,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:40:22,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:22,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:40:22,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:22,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:22,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:22,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:22,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:22,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 00:40:22,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:22,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:22,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:22,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:40:22,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:22,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:40:22,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:22,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:22,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:22,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:22,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:22,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 00:40:22,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:22,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:22,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:22,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:40:22,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:22,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:40:22,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:22,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:22,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:22,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:22,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:22,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 00:40:22,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:22,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:22,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:22,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:40:22,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:22,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:40:22,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:22,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:40:22,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:22,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:40:22,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:22,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 00:40:22,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:22,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:22,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:22,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:40:22,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:22,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 00:40:22,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:22,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:40:22,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:22,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:40:22,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:22,751 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 00:40:22,752 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1602223674] [2020-09-25 00:40:22,755 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:40:22,755 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 00:40:22,756 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713857195] [2020-09-25 00:40:22,767 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 00:40:22,767 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:40:22,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 00:40:22,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:40:22,795 INFO L87 Difference]: Start difference. First operand 302 states. Second operand 9 states. [2020-09-25 00:40:23,584 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:40:24,873 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:40:25,219 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 00:40:25,632 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:40:25,979 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 00:40:26,295 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:40:27,014 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:40:27,322 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:40:27,672 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:40:28,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:40:28,552 INFO L93 Difference]: Finished difference Result 552 states and 682 transitions. [2020-09-25 00:40:28,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 00:40:28,554 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 148 [2020-09-25 00:40:28,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:40:28,577 INFO L225 Difference]: With dead ends: 552 [2020-09-25 00:40:28,577 INFO L226 Difference]: Without dead ends: 380 [2020-09-25 00:40:28,584 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-09-25 00:40:28,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-09-25 00:40:28,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 327. [2020-09-25 00:40:28,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 327 states. [2020-09-25 00:40:28,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 366 transitions. [2020-09-25 00:40:28,767 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 366 transitions. Word has length 148 [2020-09-25 00:40:28,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:40:28,777 INFO L479 AbstractCegarLoop]: Abstraction has 327 states and 366 transitions. [2020-09-25 00:40:28,777 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 00:40:28,778 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 366 transitions. [2020-09-25 00:40:28,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-09-25 00:40:28,786 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:40:28,787 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:40:28,787 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:40:28,787 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:40:28,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:40:28,788 INFO L82 PathProgramCache]: Analyzing trace with hash 1530076393, now seen corresponding path program 1 times [2020-09-25 00:40:28,788 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:40:28,788 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [172876820] [2020-09-25 00:40:28,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:40:28,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:28,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:29,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:30,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:33,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:33,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 230 [2020-09-25 00:40:33,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:40:33,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-09-25 00:40:33,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:33,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:40:33,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 179 [2020-09-25 00:40:33,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:40:33,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:34,172 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:40:34,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:40:34,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:34,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:34,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:34,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 00:40:34,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:34,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-25 00:40:34,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:34,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:34,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:34,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:34,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:34,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 00:40:34,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:34,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:34,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:34,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:40:34,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:34,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:40:34,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:34,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:34,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:34,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:34,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:34,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 00:40:34,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:34,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:34,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:34,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:40:34,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:34,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:40:34,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:34,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:34,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:34,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:34,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:34,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 00:40:34,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:34,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:34,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:34,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:40:34,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:34,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:40:34,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:34,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:34,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:34,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:34,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:34,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 00:40:34,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:34,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:34,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:34,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:40:34,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:34,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:40:34,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:34,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:34,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:34,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:34,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:34,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 00:40:34,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:34,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:34,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:34,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:40:34,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:34,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:40:34,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:34,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:34,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:34,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:34,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:34,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 00:40:34,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:34,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:34,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:34,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 00:40:34,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:34,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-25 00:40:34,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:34,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:40:34,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 00:40:34,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:40:34,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:34,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:40:34,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:34,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:34,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:34,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:40:34,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:34,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-25 00:40:34,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:34,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:40:34,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:34,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 00:40:34,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:34,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:40:34,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:34,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:34,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:34,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:40:34,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:34,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:40:34,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:34,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:34,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:34,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:34,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:34,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:40:34,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:34,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:34,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:34,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:40:34,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:34,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:40:34,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:34,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:34,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 00:40:34,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:34,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:34,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-25 00:40:34,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:34,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:34,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:34,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:40:34,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:34,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:40:34,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:34,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:34,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:40:34,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:34,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:34,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-25 00:40:34,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:34,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:34,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:34,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:40:34,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:34,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:40:34,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:34,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:34,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:40:34,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:34,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:34,652 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 00:40:34,652 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [172876820] [2020-09-25 00:40:34,653 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:40:34,653 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 00:40:34,654 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217568328] [2020-09-25 00:40:34,658 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 00:40:34,659 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:40:34,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 00:40:34,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 00:40:34,661 INFO L87 Difference]: Start difference. First operand 327 states and 366 transitions. Second operand 10 states. [2020-09-25 00:40:36,196 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:40:36,534 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 00:40:36,865 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 00:40:37,206 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:40:37,562 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 00:40:37,869 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:40:38,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:40:38,713 INFO L93 Difference]: Finished difference Result 635 states and 771 transitions. [2020-09-25 00:40:38,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 00:40:38,714 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 191 [2020-09-25 00:40:38,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:40:38,720 INFO L225 Difference]: With dead ends: 635 [2020-09-25 00:40:38,721 INFO L226 Difference]: Without dead ends: 423 [2020-09-25 00:40:38,724 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-25 00:40:38,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2020-09-25 00:40:38,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 341. [2020-09-25 00:40:38,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 341 states. [2020-09-25 00:40:38,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 383 transitions. [2020-09-25 00:40:38,779 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 383 transitions. Word has length 191 [2020-09-25 00:40:38,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:40:38,780 INFO L479 AbstractCegarLoop]: Abstraction has 341 states and 383 transitions. [2020-09-25 00:40:38,780 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 00:40:38,780 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 383 transitions. [2020-09-25 00:40:38,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-09-25 00:40:38,783 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:40:38,783 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:40:38,784 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 00:40:38,784 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:40:38,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:40:38,784 INFO L82 PathProgramCache]: Analyzing trace with hash 2113874789, now seen corresponding path program 1 times [2020-09-25 00:40:38,785 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:40:38,785 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1338117800] [2020-09-25 00:40:38,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:40:38,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:38,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:39,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:39,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:39,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:43,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:43,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 254 [2020-09-25 00:40:43,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:40:43,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 00:40:43,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:43,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:40:43,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 195 [2020-09-25 00:40:43,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:40:43,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:44,153 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:40:44,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:40:44,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:44,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:44,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:44,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 00:40:44,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:44,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-09-25 00:40:44,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:44,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:44,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:44,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:44,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:44,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 00:40:44,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:44,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:44,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:44,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:40:44,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:44,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:40:44,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:44,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:44,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:44,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:44,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:44,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 00:40:44,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:44,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:44,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:44,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:40:44,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:44,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:40:44,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:44,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:44,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:44,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:44,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:44,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 00:40:44,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:44,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:44,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:44,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:40:44,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:44,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:40:44,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:44,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:44,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:44,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:44,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:44,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 00:40:44,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:44,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:44,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:44,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:40:44,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:44,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:40:44,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:44,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:44,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:44,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:44,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:44,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 00:40:44,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:44,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:44,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:44,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:40:44,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:44,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:40:44,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:44,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:44,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:44,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:44,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:44,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 00:40:44,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:44,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:44,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:44,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-25 00:40:44,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:44,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:40:44,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:44,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:44,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:44,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:44,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:44,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:40:44,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:44,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:44,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:44,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 00:40:44,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:44,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:40:44,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:44,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:44,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:44,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:44,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:44,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:40:44,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:44,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:44,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:44,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:40:44,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:44,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:40:44,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:44,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:44,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:44,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:44,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:44,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 00:40:44,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:44,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:44,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:44,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 00:40:44,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:44,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-25 00:40:44,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:44,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:40:44,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 00:40:44,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:40:44,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:44,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:40:44,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:44,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:44,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:44,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:40:44,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:44,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 00:40:44,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:44,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:40:44,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 00:40:44,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:40:44,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:44,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:40:44,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:44,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:44,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:44,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:40:44,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:44,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:40:44,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:44,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:40:44,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:44,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:40:44,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:44,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:40:44,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:44,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:44,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:44,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:40:44,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:44,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:40:44,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:44,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:44,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 00:40:44,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:44,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:44,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-09-25 00:40:44,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:44,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:44,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:44,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:40:44,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:44,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:40:44,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:44,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:44,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:40:44,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:44,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:44,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-09-25 00:40:44,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:44,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:44,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:44,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:40:44,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:44,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:40:44,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:44,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:44,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:40:44,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:44,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:44,699 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-25 00:40:44,699 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1338117800] [2020-09-25 00:40:44,700 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:40:44,700 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 00:40:44,700 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218454389] [2020-09-25 00:40:44,701 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 00:40:44,701 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:40:44,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 00:40:44,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-09-25 00:40:44,702 INFO L87 Difference]: Start difference. First operand 341 states and 383 transitions. Second operand 10 states. [2020-09-25 00:40:46,031 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:40:46,368 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 00:40:46,746 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:40:47,157 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 00:40:47,480 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:40:48,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:40:48,424 INFO L93 Difference]: Finished difference Result 670 states and 831 transitions. [2020-09-25 00:40:48,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 00:40:48,424 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 207 [2020-09-25 00:40:48,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:40:48,430 INFO L225 Difference]: With dead ends: 670 [2020-09-25 00:40:48,430 INFO L226 Difference]: Without dead ends: 444 [2020-09-25 00:40:48,432 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2020-09-25 00:40:48,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2020-09-25 00:40:48,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 347. [2020-09-25 00:40:48,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 347 states. [2020-09-25 00:40:48,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 389 transitions. [2020-09-25 00:40:48,480 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 389 transitions. Word has length 207 [2020-09-25 00:40:48,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:40:48,481 INFO L479 AbstractCegarLoop]: Abstraction has 347 states and 389 transitions. [2020-09-25 00:40:48,481 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 00:40:48,481 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 389 transitions. [2020-09-25 00:40:48,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-09-25 00:40:48,484 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:40:48,484 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:40:48,485 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 00:40:48,485 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:40:48,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:40:48,485 INFO L82 PathProgramCache]: Analyzing trace with hash -1740840122, now seen corresponding path program 1 times [2020-09-25 00:40:48,485 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:40:48,486 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [742929039] [2020-09-25 00:40:48,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:40:48,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:48,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:49,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:50,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:53,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:53,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 230 [2020-09-25 00:40:53,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:40:53,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 00:40:53,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:53,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 00:40:53,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 00:40:53,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-09-25 00:40:53,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:53,942 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:40:53,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:40:53,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:53,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:54,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:54,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 00:40:54,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:54,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-09-25 00:40:54,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:54,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:54,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:54,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:54,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:54,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 00:40:54,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:54,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:54,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:54,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:40:54,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:54,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:40:54,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:54,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:54,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:54,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:54,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:54,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 00:40:54,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:54,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:54,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:54,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:40:54,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:54,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:40:54,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:54,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:54,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:54,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:54,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:54,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 00:40:54,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:54,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:54,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:54,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:40:54,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:54,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:40:54,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:54,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:54,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:54,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:54,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:54,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 00:40:54,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:54,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:54,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:54,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:40:54,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:54,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:40:54,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:54,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:54,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:54,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:54,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:54,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 00:40:54,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:54,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:54,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:54,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:40:54,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:54,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:40:54,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:54,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:40:54,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:54,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 00:40:54,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:54,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 00:40:54,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:54,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:54,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:54,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 00:40:54,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:54,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 00:40:54,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:54,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:40:54,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:54,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 00:40:54,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:54,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:40:54,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:54,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:54,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:54,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:40:54,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:54,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 00:40:54,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:54,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:54,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:54,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:54,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:54,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:40:54,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:54,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:54,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:54,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:40:54,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:54,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:40:54,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:54,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:54,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:54,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:54,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:54,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:40:54,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:54,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:54,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:54,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:40:54,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:54,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:40:54,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:54,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:54,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:54,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:54,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:54,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-25 00:40:54,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:54,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:54,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:54,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:40:54,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:54,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:40:54,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:54,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:40:54,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:54,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:40:54,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:54,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-25 00:40:54,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:54,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:54,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:54,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:40:54,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:54,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:40:54,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:54,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:40:54,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:54,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:40:54,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:54,371 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 00:40:54,371 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [742929039] [2020-09-25 00:40:54,372 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:40:54,372 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 00:40:54,373 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260592789] [2020-09-25 00:40:54,375 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 00:40:54,375 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:40:54,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 00:40:54,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 00:40:54,376 INFO L87 Difference]: Start difference. First operand 347 states and 389 transitions. Second operand 6 states. [2020-09-25 00:40:55,068 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:40:57,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:40:57,379 INFO L93 Difference]: Finished difference Result 709 states and 914 transitions. [2020-09-25 00:40:57,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 00:40:57,379 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 191 [2020-09-25 00:40:57,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:40:57,388 INFO L225 Difference]: With dead ends: 709 [2020-09-25 00:40:57,388 INFO L226 Difference]: Without dead ends: 706 [2020-09-25 00:40:57,389 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 00:40:57,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2020-09-25 00:40:57,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 544. [2020-09-25 00:40:57,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 544 states. [2020-09-25 00:40:57,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 640 transitions. [2020-09-25 00:40:57,501 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 640 transitions. Word has length 191 [2020-09-25 00:40:57,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:40:57,502 INFO L479 AbstractCegarLoop]: Abstraction has 544 states and 640 transitions. [2020-09-25 00:40:57,502 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 00:40:57,503 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 640 transitions. [2020-09-25 00:40:57,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-09-25 00:40:57,510 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:40:57,510 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:40:57,510 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 00:40:57,511 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:40:57,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:40:57,511 INFO L82 PathProgramCache]: Analyzing trace with hash 76103614, now seen corresponding path program 1 times [2020-09-25 00:40:57,511 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:40:57,512 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [668542499] [2020-09-25 00:40:57,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:40:57,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:57,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:57,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:58,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:58,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:58,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:59,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:00,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking...