/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=NARROWEST --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_spec3_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 01:50:15,445 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 01:50:15,449 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 01:50:15,499 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 01:50:15,500 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 01:50:15,508 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 01:50:15,511 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 01:50:15,514 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 01:50:15,517 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 01:50:15,520 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 01:50:15,522 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 01:50:15,523 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 01:50:15,523 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 01:50:15,526 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 01:50:15,530 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 01:50:15,532 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 01:50:15,533 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 01:50:15,535 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 01:50:15,537 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 01:50:15,547 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 01:50:15,549 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 01:50:15,551 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 01:50:15,552 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 01:50:15,553 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 01:50:15,566 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 01:50:15,566 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 01:50:15,570 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 01:50:15,571 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 01:50:15,571 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 01:50:15,572 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 01:50:15,578 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 01:50:15,579 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 01:50:15,580 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 01:50:15,581 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 01:50:15,582 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 01:50:15,582 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 01:50:15,583 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 01:50:15,583 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 01:50:15,583 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 01:50:15,587 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 01:50:15,588 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 01:50:15,589 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 01:50:15,621 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 01:50:15,621 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 01:50:15,623 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 01:50:15,623 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 01:50:15,623 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 01:50:15,623 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 01:50:15,624 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 01:50:15,624 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 01:50:15,624 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 01:50:15,624 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 01:50:15,624 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 01:50:15,625 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 01:50:15,625 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 01:50:15,625 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 01:50:15,625 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 01:50:15,625 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 01:50:15,626 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 01:50:15,626 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 01:50:15,626 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 01:50:15,626 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 01:50:15,627 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 01:50:15,627 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:50:15,627 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 01:50:15,627 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 01:50:15,628 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 01:50:15,628 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 01:50:15,628 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 01:50:15,628 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 01:50:15,628 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 01:50:15,629 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true; [2020-09-25 01:50:16,076 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 01:50:16,092 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 01:50:16,098 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 01:50:16,101 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 01:50:16,101 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 01:50:16,102 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product28.cil.c [2020-09-25 01:50:16,192 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/138419aa8/a64180868ee7455991b8f82d3c942ccc/FLAGe0552e165 [2020-09-25 01:50:16,829 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 01:50:16,830 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product28.cil.c [2020-09-25 01:50:16,847 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/138419aa8/a64180868ee7455991b8f82d3c942ccc/FLAGe0552e165 [2020-09-25 01:50:17,087 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/138419aa8/a64180868ee7455991b8f82d3c942ccc [2020-09-25 01:50:17,100 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 01:50:17,105 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 01:50:17,106 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 01:50:17,107 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 01:50:17,111 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 01:50:17,112 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:50:17" (1/1) ... [2020-09-25 01:50:17,117 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11967da3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:50:17, skipping insertion in model container [2020-09-25 01:50:17,117 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:50:17" (1/1) ... [2020-09-25 01:50:17,127 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 01:50:17,187 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 01:50:17,568 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:50:17,598 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 01:50:17,793 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:50:17,834 INFO L208 MainTranslator]: Completed translation [2020-09-25 01:50:17,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:50:17 WrapperNode [2020-09-25 01:50:17,836 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 01:50:17,837 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 01:50:17,838 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 01:50:17,838 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 01:50:17,853 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:50:17" (1/1) ... [2020-09-25 01:50:17,854 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:50:17" (1/1) ... [2020-09-25 01:50:17,895 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:50:17" (1/1) ... [2020-09-25 01:50:17,896 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:50:17" (1/1) ... [2020-09-25 01:50:17,942 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:50:17" (1/1) ... [2020-09-25 01:50:17,956 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:50:17" (1/1) ... [2020-09-25 01:50:17,962 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:50:17" (1/1) ... [2020-09-25 01:50:17,988 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 01:50:17,991 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 01:50:17,991 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 01:50:17,991 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 01:50:17,995 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:50:17" (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 01:50:18,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 01:50:18,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 01:50:18,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 01:50:18,103 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 01:50:18,103 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 01:50:18,104 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 01:50:18,104 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 01:50:18,104 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 01:50:18,105 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 01:50:18,105 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 01:50:18,105 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 01:50:18,106 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 01:50:18,106 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 01:50:18,106 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 01:50:18,106 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 01:50:18,107 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 01:50:18,107 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 01:50:18,108 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 01:50:18,108 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 01:50:18,108 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 01:50:18,108 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 01:50:18,109 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 01:50:18,109 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 01:50:18,109 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 01:50:18,109 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 01:50:18,110 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 01:50:18,110 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 01:50:18,111 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 01:50:18,111 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 01:50:18,111 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 01:50:18,111 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 01:50:18,111 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 01:50:18,111 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 01:50:18,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 01:50:18,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 01:50:18,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 01:50:18,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 01:50:18,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 01:50:18,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 01:50:18,113 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 01:50:18,113 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 01:50:18,113 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 01:50:18,113 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 01:50:18,113 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 01:50:18,114 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 01:50:18,114 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 01:50:18,114 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 01:50:18,114 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 01:50:18,114 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 01:50:18,114 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 01:50:18,115 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 01:50:18,115 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 01:50:18,115 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 01:50:18,116 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 01:50:18,116 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 01:50:18,116 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 01:50:18,116 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 01:50:18,116 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 01:50:18,117 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 01:50:18,117 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 01:50:18,117 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 01:50:18,117 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 01:50:18,117 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 01:50:18,117 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 01:50:18,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 01:50:18,118 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 01:50:18,118 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 01:50:18,118 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 01:50:18,118 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 01:50:18,119 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 01:50:18,119 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 01:50:18,120 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 01:50:18,121 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 01:50:18,121 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 01:50:18,122 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 01:50:18,122 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 01:50:18,122 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 01:50:18,122 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 01:50:18,122 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 01:50:18,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 01:50:18,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 01:50:18,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 01:50:18,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 01:50:18,124 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 01:50:18,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 01:50:18,124 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 01:50:18,124 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 01:50:18,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 01:50:18,125 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 01:50:18,125 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 01:50:18,125 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 01:50:18,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 01:50:18,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 01:50:18,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 01:50:19,354 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 01:50:19,355 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 01:50:19,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:50:19 BoogieIcfgContainer [2020-09-25 01:50:19,365 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 01:50:19,366 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 01:50:19,367 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 01:50:19,371 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 01:50:19,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:50:17" (1/3) ... [2020-09-25 01:50:19,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@127d3917 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:50:19, skipping insertion in model container [2020-09-25 01:50:19,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:50:17" (2/3) ... [2020-09-25 01:50:19,374 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@127d3917 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:50:19, skipping insertion in model container [2020-09-25 01:50:19,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:50:19" (3/3) ... [2020-09-25 01:50:19,376 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product28.cil.c [2020-09-25 01:50:19,392 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 01:50:19,406 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 01:50:19,435 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 01:50:19,470 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 01:50:19,471 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 01:50:19,471 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 01:50:19,471 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 01:50:19,471 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 01:50:19,471 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 01:50:19,471 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 01:50:19,472 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 01:50:19,503 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2020-09-25 01:50:19,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 01:50:19,525 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:50:19,527 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] [2020-09-25 01:50:19,527 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:50:19,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:50:19,537 INFO L82 PathProgramCache]: Analyzing trace with hash 1905765184, now seen corresponding path program 1 times [2020-09-25 01:50:19,549 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:50:19,550 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1308622808] [2020-09-25 01:50:19,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:50:19,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:20,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:20,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:21,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:24,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:24,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 01:50:24,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 01:50:24,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-09-25 01:50:24,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:24,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:24,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 01:50:24,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:24,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 01:50:25,345 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:50:25,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:50:25,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:25,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:25,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:25,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:50:25,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:25,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-25 01:50:25,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:25,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:25,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:25,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:25,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:25,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:50:25,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:25,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:25,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:25,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:50:25,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:25,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:50:25,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:25,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:25,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:25,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:25,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:25,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:50:25,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:25,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:25,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:25,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:50:25,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:25,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:50:25,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:25,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:25,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:25,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:25,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:25,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:50:25,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:25,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:25,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:25,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:50:25,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:25,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 01:50:25,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:25,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:25,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:25,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:25,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:25,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:50:25,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:25,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:25,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:25,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:50:25,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:25,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:50:25,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:25,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:25,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:25,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:25,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:25,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 01:50:25,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:25,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:25,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:25,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:50:25,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:25,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:50:25,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:25,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:25,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:50:25,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:25,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:25,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 01:50:25,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:25,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:25,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:25,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:50:25,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:25,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:50:25,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:25,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:25,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:50:25,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:25,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:25,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 01:50:25,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:25,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:25,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:25,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:50:25,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:25,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:50:25,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:25,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:25,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:50:25,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:25,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:25,671 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 01:50:25,673 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1308622808] [2020-09-25 01:50:25,675 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:50:25,676 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 01:50:25,677 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306073810] [2020-09-25 01:50:25,688 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 01:50:25,689 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:50:25,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 01:50:25,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 01:50:25,714 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 3 states. [2020-09-25 01:50:27,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:50:27,112 INFO L93 Difference]: Finished difference Result 458 states and 546 transitions. [2020-09-25 01:50:27,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 01:50:27,114 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-25 01:50:27,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:50:27,135 INFO L225 Difference]: With dead ends: 458 [2020-09-25 01:50:27,136 INFO L226 Difference]: Without dead ends: 287 [2020-09-25 01:50:27,142 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 01:50:27,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-09-25 01:50:27,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 245. [2020-09-25 01:50:27,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2020-09-25 01:50:27,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 265 transitions. [2020-09-25 01:50:27,274 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 265 transitions. Word has length 153 [2020-09-25 01:50:27,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:50:27,278 INFO L479 AbstractCegarLoop]: Abstraction has 245 states and 265 transitions. [2020-09-25 01:50:27,278 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 01:50:27,279 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 265 transitions. [2020-09-25 01:50:27,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 01:50:27,287 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:50:27,288 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] [2020-09-25 01:50:27,288 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 01:50:27,288 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:50:27,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:50:27,294 INFO L82 PathProgramCache]: Analyzing trace with hash 319840535, now seen corresponding path program 1 times [2020-09-25 01:50:27,294 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:50:27,295 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1704407095] [2020-09-25 01:50:27,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:50:27,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:27,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:27,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:29,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:32,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:32,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 01:50:32,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 01:50:32,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-09-25 01:50:32,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:32,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:50:32,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 01:50:32,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 01:50:32,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:32,748 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:50:32,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:50:32,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:32,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:32,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:32,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:50:32,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:32,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-25 01:50:32,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:32,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:32,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:32,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:32,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:32,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:50:32,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:32,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:32,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:32,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:50:32,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:32,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:50:32,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:32,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:32,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:32,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:32,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:32,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:50:32,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:32,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:32,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:32,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:50:32,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:32,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:50:32,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:32,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:32,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:32,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:32,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:32,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:50:32,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:32,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:32,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:32,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:50:32,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:32,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:50:32,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:32,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:32,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:32,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:32,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:32,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:50:32,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:32,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:32,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:32,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:50:32,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:32,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:50:32,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:32,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:32,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:32,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:32,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:32,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 01:50:32,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:32,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:32,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:32,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:50:32,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:32,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:50:32,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:32,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:32,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:50:32,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:32,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:32,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 01:50:32,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:32,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:32,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:32,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:50:32,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:32,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:50:32,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:32,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:32,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:50:32,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:32,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 36 [2020-09-25 01:50:32,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 01:50:32,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:32,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:32,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:32,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:50:32,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:32,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:50:32,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:32,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:32,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:50:32,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:32,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 01:50:33,015 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 01:50:33,016 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1704407095] [2020-09-25 01:50:33,016 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:50:33,016 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 01:50:33,017 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647636622] [2020-09-25 01:50:33,019 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 01:50:33,019 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:50:33,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 01:50:33,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 01:50:33,020 INFO L87 Difference]: Start difference. First operand 245 states and 265 transitions. Second operand 4 states. [2020-09-25 01:50:33,766 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:50:34,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:50:34,709 INFO L93 Difference]: Finished difference Result 365 states and 409 transitions. [2020-09-25 01:50:34,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 01:50:34,711 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-25 01:50:34,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:50:34,715 INFO L225 Difference]: With dead ends: 365 [2020-09-25 01:50:34,716 INFO L226 Difference]: Without dead ends: 270 [2020-09-25 01:50:34,718 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:50:34,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2020-09-25 01:50:34,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 235. [2020-09-25 01:50:34,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2020-09-25 01:50:34,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 252 transitions. [2020-09-25 01:50:34,790 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 252 transitions. Word has length 154 [2020-09-25 01:50:34,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:50:34,791 INFO L479 AbstractCegarLoop]: Abstraction has 235 states and 252 transitions. [2020-09-25 01:50:34,791 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 01:50:34,792 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 252 transitions. [2020-09-25 01:50:34,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 01:50:34,794 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:50:34,794 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] [2020-09-25 01:50:34,794 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 01:50:34,794 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:50:34,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:50:34,795 INFO L82 PathProgramCache]: Analyzing trace with hash 2018801783, now seen corresponding path program 1 times [2020-09-25 01:50:34,795 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:50:34,795 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [88146475] [2020-09-25 01:50:34,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:50:34,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:34,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:35,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:37,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:37,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 01:50:37,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:50:37,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3087 [2020-09-25 01:50:37,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:37,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:50:37,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 01:50:37,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:50:37,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:38,235 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:50:38,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:50:38,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:38,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:38,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:38,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:50:38,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:38,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-25 01:50:38,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:38,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:38,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:38,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:38,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:38,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:50:38,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:38,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:38,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:38,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:50:38,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:38,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:50:38,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:38,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:38,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:38,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:38,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:38,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:50:38,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:38,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:38,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:38,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:50:38,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:38,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:50:38,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:38,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:38,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:38,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:38,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:38,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:50:38,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:38,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:38,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:38,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:50:38,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:38,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:50:38,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:38,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:38,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:38,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:38,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:38,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:50:38,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:38,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:38,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:38,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:50:38,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:38,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:50:38,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:38,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:38,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:38,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:38,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:50:38,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 01:50:38,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:38,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:38,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:38,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:50:38,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:38,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:50:38,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:38,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:50:38,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:38,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 01:50:38,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:38,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 01:50:38,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:38,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:38,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:38,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:50:38,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:38,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:50:38,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:38,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:38,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:50:38,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:38,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:38,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 01:50:38,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:38,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:38,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:38,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:50:38,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:38,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 01:50:38,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:38,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:38,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:50:38,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:38,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:38,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-25 01:50:38,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:38,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:38,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:38,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:50:38,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:38,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:50:38,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:38,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:38,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:50:38,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:38,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:38,514 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 01:50:38,515 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [88146475] [2020-09-25 01:50:38,515 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:50:38,516 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 01:50:38,516 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632998977] [2020-09-25 01:50:38,517 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 01:50:38,518 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:50:38,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 01:50:38,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:50:38,520 INFO L87 Difference]: Start difference. First operand 235 states and 252 transitions. Second operand 5 states. [2020-09-25 01:50:39,047 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:50:40,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:50:40,776 INFO L93 Difference]: Finished difference Result 551 states and 637 transitions. [2020-09-25 01:50:40,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 01:50:40,777 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-09-25 01:50:40,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:50:40,782 INFO L225 Difference]: With dead ends: 551 [2020-09-25 01:50:40,783 INFO L226 Difference]: Without dead ends: 426 [2020-09-25 01:50:40,784 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 01:50:40,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2020-09-25 01:50:40,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 350. [2020-09-25 01:50:40,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 350 states. [2020-09-25 01:50:40,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 385 transitions. [2020-09-25 01:50:40,851 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 385 transitions. Word has length 167 [2020-09-25 01:50:40,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:50:40,852 INFO L479 AbstractCegarLoop]: Abstraction has 350 states and 385 transitions. [2020-09-25 01:50:40,852 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 01:50:40,852 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 385 transitions. [2020-09-25 01:50:40,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-25 01:50:40,855 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:50:40,856 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] [2020-09-25 01:50:40,856 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 01:50:40,856 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:50:40,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:50:40,857 INFO L82 PathProgramCache]: Analyzing trace with hash -1851726168, now seen corresponding path program 1 times [2020-09-25 01:50:40,857 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:50:40,857 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1566245288] [2020-09-25 01:50:40,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:50:40,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:40,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:42,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:42,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-25 01:50:42,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:42,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1842 [2020-09-25 01:50:42,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:42,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 01:50:42,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 01:50:42,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-25 01:50:42,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:50:43,108 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:50:43,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:50:43,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:43,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:43,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:43,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:50:43,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:43,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 225 [2020-09-25 01:50:43,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:43,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:50:43,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:43,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 01:50:43,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:43,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:50:43,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:43,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:43,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:43,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:50:43,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:43,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:50:43,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:43,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:50:43,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:43,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:50:43,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:43,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:50:43,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:43,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:43,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:43,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:50:43,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:43,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:50:43,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:43,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:50:43,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:43,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:50:43,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:43,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:50:43,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:43,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:43,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:43,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:50:43,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:43,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 01:50:43,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:43,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:50:43,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:43,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:50:43,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:43,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:50:43,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:43,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:43,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:43,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:50:43,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:43,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:50:43,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:43,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:50:43,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:43,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:50:43,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:43,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 01:50:43,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:43,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:43,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:43,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 01:50:43,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:43,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:50:43,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:43,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:50:43,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:43,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 01:50:43,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:43,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 01:50:43,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:43,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:43,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:43,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:50:43,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:43,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:50:43,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:43,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:50:43,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:43,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:50:43,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:43,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 01:50:43,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:43,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:43,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:43,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:50:43,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:43,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 01:50:43,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:43,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:50:43,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:43,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:50:43,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:43,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 01:50:43,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:43,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:43,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:43,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:50:43,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:43,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:50:43,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:43,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:43,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:50:43,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:43,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:43,609 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 01:50:43,610 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1566245288] [2020-09-25 01:50:43,610 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:50:43,610 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 01:50:43,611 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005996214] [2020-09-25 01:50:43,611 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 01:50:43,611 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:50:43,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 01:50:43,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 01:50:43,612 INFO L87 Difference]: Start difference. First operand 350 states and 385 transitions. Second operand 9 states. [2020-09-25 01:50:44,258 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:50:46,318 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:50:46,888 WARN L193 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-25 01:50:47,279 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:50:47,649 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:50:47,949 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:50:48,254 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 01:50:48,563 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:50:49,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:50:49,328 INFO L93 Difference]: Finished difference Result 912 states and 1087 transitions. [2020-09-25 01:50:49,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 01:50:49,330 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-09-25 01:50:49,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:50:49,336 INFO L225 Difference]: With dead ends: 912 [2020-09-25 01:50:49,336 INFO L226 Difference]: Without dead ends: 672 [2020-09-25 01:50:49,339 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-25 01:50:49,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2020-09-25 01:50:49,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 577. [2020-09-25 01:50:49,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 577 states. [2020-09-25 01:50:49,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 653 transitions. [2020-09-25 01:50:49,432 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 653 transitions. Word has length 172 [2020-09-25 01:50:49,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:50:49,432 INFO L479 AbstractCegarLoop]: Abstraction has 577 states and 653 transitions. [2020-09-25 01:50:49,433 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 01:50:49,433 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 653 transitions. [2020-09-25 01:50:49,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 01:50:49,437 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:50:49,437 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] [2020-09-25 01:50:49,437 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 01:50:49,438 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:50:49,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:50:49,438 INFO L82 PathProgramCache]: Analyzing trace with hash 525017164, now seen corresponding path program 1 times [2020-09-25 01:50:49,438 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:50:49,439 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1072138704] [2020-09-25 01:50:49,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:50:49,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 01:50:49,508 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 01:50:49,508 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 01:50:49,514 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 01:50:49,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 01:50:49 BoogieIcfgContainer [2020-09-25 01:50:49,542 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 01:50:49,544 INFO L168 Benchmark]: Toolchain (without parser) took 32441.97 ms. Allocated memory was 140.5 MB in the beginning and 631.8 MB in the end (delta: 491.3 MB). Free memory was 101.3 MB in the beginning and 117.3 MB in the end (delta: -16.0 MB). Peak memory consumption was 475.3 MB. Max. memory is 7.1 GB. [2020-09-25 01:50:49,545 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 01:50:49,546 INFO L168 Benchmark]: CACSL2BoogieTranslator took 730.13 ms. Allocated memory was 140.5 MB in the beginning and 204.5 MB in the end (delta: 64.0 MB). Free memory was 100.6 MB in the beginning and 173.6 MB in the end (delta: -73.0 MB). Peak memory consumption was 28.3 MB. Max. memory is 7.1 GB. [2020-09-25 01:50:49,547 INFO L168 Benchmark]: Boogie Preprocessor took 151.53 ms. Allocated memory is still 204.5 MB. Free memory was 173.6 MB in the beginning and 169.0 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2020-09-25 01:50:49,548 INFO L168 Benchmark]: RCFGBuilder took 1374.05 ms. Allocated memory was 204.5 MB in the beginning and 239.1 MB in the end (delta: 34.6 MB). Free memory was 169.0 MB in the beginning and 179.3 MB in the end (delta: -10.4 MB). Peak memory consumption was 83.0 MB. Max. memory is 7.1 GB. [2020-09-25 01:50:49,549 INFO L168 Benchmark]: TraceAbstraction took 30175.52 ms. Allocated memory was 239.1 MB in the beginning and 631.8 MB in the end (delta: 392.7 MB). Free memory was 179.3 MB in the beginning and 117.3 MB in the end (delta: 62.1 MB). Peak memory consumption was 454.7 MB. Max. memory is 7.1 GB. [2020-09-25 01:50:49,553 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 730.13 ms. Allocated memory was 140.5 MB in the beginning and 204.5 MB in the end (delta: 64.0 MB). Free memory was 100.6 MB in the beginning and 173.6 MB in the end (delta: -73.0 MB). Peak memory consumption was 28.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 151.53 ms. Allocated memory is still 204.5 MB. Free memory was 173.6 MB in the beginning and 169.0 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1374.05 ms. Allocated memory was 204.5 MB in the beginning and 239.1 MB in the end (delta: 34.6 MB). Free memory was 169.0 MB in the beginning and 179.3 MB in the end (delta: -10.4 MB). Peak memory consumption was 83.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 30175.52 ms. Allocated memory was 239.1 MB in the beginning and 631.8 MB in the end (delta: 392.7 MB). Free memory was 179.3 MB in the beginning and 117.3 MB in the end (delta: 62.1 MB). Peak memory consumption was 454.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 545]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L89] int pumpRunning = 0; [L90] int systemActive = 1; [L356] int waterLevel = 1; [L357] int methaneLevelCritical = 0; [L445] int cleanupTimeShifts = 4; [L753] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L518] int retValue_acc ; [L519] int tmp ; [L523] FCALL select_helpers() [L524] FCALL select_features() [L525] CALL, EXPR valid_product() [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L525] RET, EXPR valid_product() [L525] tmp = valid_product() [L527] COND TRUE \read(tmp) [L529] FCALL setup() [L530] CALL runTest() [L512] CALL test() [L287] int splverifierCounter ; [L288] int tmp ; [L289] int tmp___0 ; [L290] int tmp___1 ; [L291] int tmp___2 ; [L294] splverifierCounter = 0 [L296] COND TRUE 1 [L298] COND TRUE splverifierCounter < 4 [L304] tmp = __VERIFIER_nondet_int() [L306] COND TRUE \read(tmp) [L308] CALL waterRise() [L374] COND TRUE waterLevel < 2 [L375] waterLevel = waterLevel + 1 [L308] RET waterRise() [L314] tmp___0 = __VERIFIER_nondet_int() [L316] COND FALSE !(\read(tmp___0)) [L324] tmp___2 = __VERIFIER_nondet_int() [L326] COND FALSE !(\read(tmp___2)) [L332] tmp___1 = __VERIFIER_nondet_int() [L334] COND TRUE \read(tmp___1) [L336] CALL stopSystem() [L263] COND FALSE !(\read(pumpRunning)) [L270] systemActive = 0 [L336] RET stopSystem() [L343] CALL timeShift() [L97] COND FALSE !(\read(pumpRunning)) [L104] COND FALSE !(\read(systemActive)) [L112] CALL __utac_acc__Specification3_spec__1() [L551] int tmp ; [L552] int tmp___0 ; [L553] int tmp___1 ; [L557] CALL, EXPR isMethaneLevelCritical() [L395] int retValue_acc ; [L398] retValue_acc = methaneLevelCritical [L399] return (retValue_acc); [L557] RET, EXPR isMethaneLevelCritical() [L557] tmp = isMethaneLevelCritical() [L559] COND FALSE !(\read(tmp)) [L563] CALL, EXPR getWaterLevel() [L427] int retValue_acc ; [L430] retValue_acc = waterLevel [L431] return (retValue_acc); [L563] RET, EXPR getWaterLevel() [L563] tmp___0 = getWaterLevel() [L565] COND TRUE tmp___0 == 2 [L567] CALL, EXPR isPumpRunning() [L196] int retValue_acc ; [L199] retValue_acc = pumpRunning [L200] return (retValue_acc); [L567] RET, EXPR isPumpRunning() [L567] tmp___1 = isPumpRunning() [L569] COND FALSE !(\read(tmp___1)) [L573] CALL __automaton_fail() [L545] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 628 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 30.0s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 11.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 953 SDtfs, 1104 SDslu, 867 SDs, 0 SdLazy, 1981 SolverSat, 353 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=577occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 248 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 17.6s InterpolantComputationTime, 823 NumberOfCodeBlocks, 823 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 642 ConstructedInterpolants, 0 QuantifiedInterpolants, 247340 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...