/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=BIGGEST --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_product51.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 20:13:54,814 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 20:13:54,818 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 20:13:54,851 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 20:13:54,851 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 20:13:54,852 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 20:13:54,854 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 20:13:54,856 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 20:13:54,858 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 20:13:54,859 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 20:13:54,860 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 20:13:54,861 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 20:13:54,861 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 20:13:54,862 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 20:13:54,863 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 20:13:54,865 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 20:13:54,866 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 20:13:54,867 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 20:13:54,868 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 20:13:54,870 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 20:13:54,872 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 20:13:54,873 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 20:13:54,874 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 20:13:54,875 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 20:13:54,878 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 20:13:54,878 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 20:13:54,878 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 20:13:54,880 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 20:13:54,880 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 20:13:54,881 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 20:13:54,881 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 20:13:54,882 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 20:13:54,883 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 20:13:54,884 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 20:13:54,885 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 20:13:54,886 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 20:13:54,886 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 20:13:54,887 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 20:13:54,887 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 20:13:54,888 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 20:13:54,889 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 20:13:54,890 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 20:13:54,915 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 20:13:54,915 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 20:13:54,916 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 20:13:54,916 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 20:13:54,917 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 20:13:54,917 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 20:13:54,917 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 20:13:54,917 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 20:13:54,917 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 20:13:54,918 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 20:13:54,918 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 20:13:54,918 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 20:13:54,918 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 20:13:54,918 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 20:13:54,919 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 20:13:54,919 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 20:13:54,919 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 20:13:54,919 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 20:13:54,919 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 20:13:54,920 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 20:13:54,920 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 20:13:54,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:13:54,920 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 20:13:54,921 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 20:13:54,921 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 20:13:54,921 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 20:13:54,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 20:13:54,921 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 20:13:54,922 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 20:13:54,922 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true; [2020-09-24 20:13:55,425 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 20:13:55,450 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 20:13:55,454 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 20:13:55,459 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 20:13:55,460 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 20:13:55,461 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product51.cil.c [2020-09-24 20:13:55,539 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bc5227215/971d3217db584bbd83bf8b76fab820c9/FLAG7d1d1b8fb [2020-09-24 20:13:56,117 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 20:13:56,119 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product51.cil.c [2020-09-24 20:13:56,142 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bc5227215/971d3217db584bbd83bf8b76fab820c9/FLAG7d1d1b8fb [2020-09-24 20:13:56,448 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bc5227215/971d3217db584bbd83bf8b76fab820c9 [2020-09-24 20:13:56,460 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 20:13:56,466 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 20:13:56,467 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 20:13:56,467 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 20:13:56,471 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 20:13:56,472 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:13:56" (1/1) ... [2020-09-24 20:13:56,476 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17866592 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:13:56, skipping insertion in model container [2020-09-24 20:13:56,477 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:13:56" (1/1) ... [2020-09-24 20:13:56,486 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 20:13:56,546 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 20:13:57,101 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:13:57,130 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 20:13:57,232 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:13:57,274 INFO L208 MainTranslator]: Completed translation [2020-09-24 20:13:57,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:13:57 WrapperNode [2020-09-24 20:13:57,274 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 20:13:57,275 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 20:13:57,275 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 20:13:57,276 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 20:13:57,293 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:13:57" (1/1) ... [2020-09-24 20:13:57,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:13:57" (1/1) ... [2020-09-24 20:13:57,316 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:13:57" (1/1) ... [2020-09-24 20:13:57,316 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:13:57" (1/1) ... [2020-09-24 20:13:57,351 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:13:57" (1/1) ... [2020-09-24 20:13:57,363 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:13:57" (1/1) ... [2020-09-24 20:13:57,369 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:13:57" (1/1) ... [2020-09-24 20:13:57,377 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 20:13:57,378 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 20:13:57,378 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 20:13:57,378 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 20:13:57,380 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:13:57" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:13:57,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 20:13:57,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 20:13:57,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 20:13:57,458 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 20:13:57,459 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 20:13:57,460 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 20:13:57,460 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 20:13:57,460 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 20:13:57,461 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 20:13:57,462 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 20:13:57,462 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 20:13:57,462 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 20:13:57,462 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 20:13:57,462 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 20:13:57,463 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 20:13:57,463 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 20:13:57,464 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 20:13:57,464 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 20:13:57,465 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 20:13:57,465 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 20:13:57,466 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 20:13:57,466 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 20:13:57,466 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 20:13:57,466 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 20:13:57,466 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 20:13:57,468 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 20:13:57,469 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 20:13:57,469 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 20:13:57,469 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 20:13:57,469 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 20:13:57,469 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 20:13:57,469 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 20:13:57,470 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 20:13:57,470 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 20:13:57,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 20:13:57,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 20:13:57,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 20:13:57,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 20:13:57,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 20:13:57,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 20:13:57,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 20:13:57,471 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 20:13:57,471 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 20:13:57,471 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 20:13:57,471 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 20:13:57,472 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 20:13:57,472 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 20:13:57,472 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 20:13:57,472 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 20:13:57,472 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 20:13:57,473 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 20:13:57,473 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 20:13:57,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 20:13:57,473 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 20:13:57,473 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 20:13:57,474 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 20:13:57,474 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 20:13:57,474 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 20:13:57,474 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 20:13:57,475 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 20:13:57,475 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 20:13:57,475 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 20:13:57,475 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 20:13:57,475 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 20:13:57,475 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 20:13:57,475 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 20:13:57,476 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 20:13:57,476 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 20:13:57,476 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 20:13:57,476 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 20:13:57,476 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 20:13:57,478 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 20:13:57,478 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 20:13:57,478 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 20:13:57,478 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 20:13:57,478 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 20:13:57,478 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 20:13:57,479 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 20:13:57,479 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 20:13:57,479 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 20:13:57,479 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 20:13:57,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 20:13:57,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 20:13:57,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 20:13:57,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 20:13:57,479 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 20:13:57,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 20:13:57,480 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 20:13:57,480 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 20:13:57,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 20:13:57,481 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 20:13:57,481 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 20:13:57,481 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 20:13:57,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 20:13:57,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 20:13:57,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 20:13:58,761 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 20:13:58,762 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 20:13:58,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:13:58 BoogieIcfgContainer [2020-09-24 20:13:58,777 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 20:13:58,780 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 20:13:58,780 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 20:13:58,784 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 20:13:58,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:13:56" (1/3) ... [2020-09-24 20:13:58,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e9f7763 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:13:58, skipping insertion in model container [2020-09-24 20:13:58,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:13:57" (2/3) ... [2020-09-24 20:13:58,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e9f7763 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:13:58, skipping insertion in model container [2020-09-24 20:13:58,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:13:58" (3/3) ... [2020-09-24 20:13:58,790 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product51.cil.c [2020-09-24 20:13:58,804 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 20:13:58,819 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 20:13:58,846 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 20:13:58,895 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 20:13:58,895 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 20:13:58,896 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 20:13:58,896 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 20:13:58,896 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 20:13:58,896 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 20:13:58,897 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 20:13:58,898 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 20:13:58,941 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states. [2020-09-24 20:13:58,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 20:13:58,976 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:13:58,978 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] [2020-09-24 20:13:58,979 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:13:58,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:13:58,989 INFO L82 PathProgramCache]: Analyzing trace with hash 1368877385, now seen corresponding path program 1 times [2020-09-24 20:13:59,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:13:59,005 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1547149926] [2020-09-24 20:13:59,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:13:59,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:13:59,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:13:59,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:01,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:04,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:04,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 20:14:04,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 20:14:04,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-09-24 20:14:04,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:04,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 20:14:04,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 20:14:04,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-24 20:14:04,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 20:14:04,901 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:14:04,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:14:04,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:04,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:05,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:05,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:14:05,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:05,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 282 [2020-09-24 20:14:05,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:05,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:14:05,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:05,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 20:14:05,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:05,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:14:05,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:05,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:05,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:05,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:14:05,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:05,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:14:05,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:05,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:14:05,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:05,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:14:05,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:05,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:14:05,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:05,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:05,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:05,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:14:05,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:05,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:14:05,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:05,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:14:05,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:05,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:14:05,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:05,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:14:05,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:05,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:05,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:05,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:14:05,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:05,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 20:14:05,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:05,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:14:05,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:05,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:14:05,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:05,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:14:05,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:05,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:05,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:05,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:14:05,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:05,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:14:05,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:05,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:14:05,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:05,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:14:05,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:05,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 20:14:05,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:05,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:05,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:05,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:14:05,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:05,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:14:05,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:05,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:14:05,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:05,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:14:05,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:05,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 20:14:05,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:05,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:05,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:05,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:14:05,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:05,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 20:14:05,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:05,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:14:05,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:05,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:14:05,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:05,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 20:14:05,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:05,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:05,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:05,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:14:05,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:05,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:14:05,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:05,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:14:05,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:14:05,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:14:05,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:05,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:14:05,483 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1547149926] [2020-09-24 20:14:05,485 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:14:05,485 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 20:14:05,486 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502478934] [2020-09-24 20:14:05,493 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 20:14:05,493 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:14:05,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 20:14:05,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 20:14:05,515 INFO L87 Difference]: Start difference. First operand 335 states. Second operand 8 states. [2020-09-24 20:14:06,056 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:14:07,965 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:14:08,365 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:14:08,789 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:14:09,201 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:14:09,570 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:14:09,898 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:14:10,215 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:14:11,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:14:11,707 INFO L93 Difference]: Finished difference Result 704 states and 864 transitions. [2020-09-24 20:14:11,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 20:14:11,710 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 153 [2020-09-24 20:14:11,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:14:11,733 INFO L225 Difference]: With dead ends: 704 [2020-09-24 20:14:11,733 INFO L226 Difference]: Without dead ends: 486 [2020-09-24 20:14:11,740 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-24 20:14:11,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2020-09-24 20:14:11,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 438. [2020-09-24 20:14:11,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 438 states. [2020-09-24 20:14:11,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 496 transitions. [2020-09-24 20:14:11,889 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 496 transitions. Word has length 153 [2020-09-24 20:14:11,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:14:11,890 INFO L479 AbstractCegarLoop]: Abstraction has 438 states and 496 transitions. [2020-09-24 20:14:11,890 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 20:14:11,891 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 496 transitions. [2020-09-24 20:14:11,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-09-24 20:14:11,895 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:14:11,895 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] [2020-09-24 20:14:11,896 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 20:14:11,896 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:14:11,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:14:11,897 INFO L82 PathProgramCache]: Analyzing trace with hash -615945432, now seen corresponding path program 1 times [2020-09-24 20:14:11,897 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:14:11,897 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1034007793] [2020-09-24 20:14:11,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:14:11,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:12,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:12,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:12,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:16,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:16,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-24 20:14:16,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 20:14:16,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-09-24 20:14:16,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:16,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 20:14:16,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 20:14:16,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-24 20:14:16,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:17,381 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:14:17,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:14:17,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:17,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:17,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:17,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:14:17,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:17,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 246 [2020-09-24 20:14:17,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:17,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:14:17,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:17,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 20:14:17,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:14:17,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:14:17,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:17,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:17,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:17,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:14:17,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:17,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:14:17,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:17,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:14:17,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:17,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:14:17,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:17,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:14:17,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:17,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:17,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:17,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:14:17,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:17,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:14:17,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:17,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:14:17,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:17,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:14:17,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:17,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:14:17,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:17,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:17,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:17,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:14:17,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:17,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 20:14:17,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:17,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:14:17,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:17,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:14:17,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:17,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:14:17,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:17,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:17,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:17,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:14:17,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:17,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:14:17,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:17,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:14:17,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:17,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:14:17,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:17,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-24 20:14:17,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:17,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:17,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:17,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:14:17,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:17,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:14:17,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:17,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:14:17,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 20:14:17,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:14:17,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:17,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 20:14:17,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:17,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:17,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:17,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:14:17,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:17,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:14:17,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:17,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:14:17,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:14:17,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:14:17,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:17,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 20:14:17,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:17,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:17,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:17,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:14:17,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:17,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:14:17,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:17,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:14:17,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:14:17,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:14:17,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:17,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 20:14:17,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:17,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:17,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:17,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:14:17,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:17,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:14:17,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:17,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:14:17,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:14:17,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:14:17,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:17,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:14:17,884 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1034007793] [2020-09-24 20:14:17,885 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:14:17,885 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 20:14:17,885 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45510693] [2020-09-24 20:14:17,887 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 20:14:17,887 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:14:17,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 20:14:17,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 20:14:17,888 INFO L87 Difference]: Start difference. First operand 438 states and 496 transitions. Second operand 5 states. [2020-09-24 20:14:18,400 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:14:20,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:14:20,474 INFO L93 Difference]: Finished difference Result 974 states and 1216 transitions. [2020-09-24 20:14:20,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 20:14:20,474 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 159 [2020-09-24 20:14:20,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:14:20,482 INFO L225 Difference]: With dead ends: 974 [2020-09-24 20:14:20,482 INFO L226 Difference]: Without dead ends: 646 [2020-09-24 20:14:20,486 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 5 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 20:14:20,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2020-09-24 20:14:20,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 589. [2020-09-24 20:14:20,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 589 states. [2020-09-24 20:14:20,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 692 transitions. [2020-09-24 20:14:20,584 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 692 transitions. Word has length 159 [2020-09-24 20:14:20,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:14:20,585 INFO L479 AbstractCegarLoop]: Abstraction has 589 states and 692 transitions. [2020-09-24 20:14:20,585 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 20:14:20,585 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 692 transitions. [2020-09-24 20:14:20,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-09-24 20:14:20,588 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:14:20,588 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] [2020-09-24 20:14:20,589 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 20:14:20,589 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:14:20,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:14:20,589 INFO L82 PathProgramCache]: Analyzing trace with hash 762766832, now seen corresponding path program 1 times [2020-09-24 20:14:20,590 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:14:20,590 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1509709968] [2020-09-24 20:14:20,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:14:20,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:20,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:21,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:21,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-09-24 20:14:21,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:21,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1178 [2020-09-24 20:14:21,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:21,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 20:14:21,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 20:14:21,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 20:14:21,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:22,145 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:14:22,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:14:22,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:22,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:22,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:22,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:14:22,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:22,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-09-24 20:14:22,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:22,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:14:22,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:22,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 20:14:22,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:22,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:14:22,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:22,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:22,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:22,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:14:22,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:22,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:14:22,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:22,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:14:22,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:22,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:14:22,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:22,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:14:22,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:22,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:22,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:22,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:14:22,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:22,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:14:22,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:22,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:14:22,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:22,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:14:22,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:22,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:14:22,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:22,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:22,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:22,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:14:22,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:22,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:14:22,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:22,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:14:22,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:22,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:14:22,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:22,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:14:22,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:22,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:22,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:22,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:14:22,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:22,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:14:22,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:22,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:14:22,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:22,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:14:22,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:22,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 20:14:22,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:22,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:22,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:22,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:14:22,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:22,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:14:22,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:22,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:14:22,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:22,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:14:22,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:22,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 20:14:22,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:22,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:22,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:22,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:14:22,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:22,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:14:22,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:22,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:14:22,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:14:22,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:14:22,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:22,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-09-24 20:14:22,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:22,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:22,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:22,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:14:22,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:22,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:14:22,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:22,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:14:22,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:14:22,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:14:22,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:22,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-09-24 20:14:22,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:22,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:22,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:22,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:14:22,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:22,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:14:22,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:22,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:14:22,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:14:22,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:14:22,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:22,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:14:22,547 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1509709968] [2020-09-24 20:14:22,547 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:14:22,547 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 20:14:22,547 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885279882] [2020-09-24 20:14:22,548 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 20:14:22,548 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:14:22,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 20:14:22,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 20:14:22,549 INFO L87 Difference]: Start difference. First operand 589 states and 692 transitions. Second operand 6 states. [2020-09-24 20:14:23,058 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:14:23,685 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:14:26,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:14:26,666 INFO L93 Difference]: Finished difference Result 1786 states and 2241 transitions. [2020-09-24 20:14:26,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 20:14:26,667 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 168 [2020-09-24 20:14:26,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:14:26,677 INFO L225 Difference]: With dead ends: 1786 [2020-09-24 20:14:26,678 INFO L226 Difference]: Without dead ends: 1307 [2020-09-24 20:14:26,681 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-09-24 20:14:26,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1307 states. [2020-09-24 20:14:26,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1307 to 1198. [2020-09-24 20:14:26,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1198 states. [2020-09-24 20:14:26,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1198 states to 1198 states and 1431 transitions. [2020-09-24 20:14:26,849 INFO L78 Accepts]: Start accepts. Automaton has 1198 states and 1431 transitions. Word has length 168 [2020-09-24 20:14:26,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:14:26,849 INFO L479 AbstractCegarLoop]: Abstraction has 1198 states and 1431 transitions. [2020-09-24 20:14:26,850 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 20:14:26,850 INFO L276 IsEmpty]: Start isEmpty. Operand 1198 states and 1431 transitions. [2020-09-24 20:14:26,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-24 20:14:26,853 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:14:26,853 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] [2020-09-24 20:14:26,854 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 20:14:26,854 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:14:26,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:14:26,854 INFO L82 PathProgramCache]: Analyzing trace with hash 1702574382, now seen corresponding path program 1 times [2020-09-24 20:14:26,855 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:14:26,855 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [148538991] [2020-09-24 20:14:26,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:14:26,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 20:14:26,919 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 20:14:26,919 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 20:14:26,925 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 20:14:26,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 08:14:26 BoogieIcfgContainer [2020-09-24 20:14:26,966 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 20:14:26,969 INFO L168 Benchmark]: Toolchain (without parser) took 30506.51 ms. Allocated memory was 144.7 MB in the beginning and 557.8 MB in the end (delta: 413.1 MB). Free memory was 99.6 MB in the beginning and 261.8 MB in the end (delta: -162.2 MB). Peak memory consumption was 251.0 MB. Max. memory is 7.1 GB. [2020-09-24 20:14:26,969 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 144.7 MB. Free memory was 119.3 MB in the beginning and 119.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 20:14:26,970 INFO L168 Benchmark]: CACSL2BoogieTranslator took 808.12 ms. Allocated memory was 144.7 MB in the beginning and 202.9 MB in the end (delta: 58.2 MB). Free memory was 99.0 MB in the beginning and 168.6 MB in the end (delta: -69.6 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. [2020-09-24 20:14:26,971 INFO L168 Benchmark]: Boogie Preprocessor took 102.20 ms. Allocated memory is still 202.9 MB. Free memory was 168.6 MB in the beginning and 164.5 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-09-24 20:14:26,972 INFO L168 Benchmark]: RCFGBuilder took 1399.78 ms. Allocated memory was 202.9 MB in the beginning and 232.8 MB in the end (delta: 29.9 MB). Free memory was 164.5 MB in the beginning and 170.1 MB in the end (delta: -5.6 MB). Peak memory consumption was 84.9 MB. Max. memory is 7.1 GB. [2020-09-24 20:14:26,973 INFO L168 Benchmark]: TraceAbstraction took 28186.62 ms. Allocated memory was 232.8 MB in the beginning and 557.8 MB in the end (delta: 325.1 MB). Free memory was 170.1 MB in the beginning and 261.8 MB in the end (delta: -91.7 MB). Peak memory consumption was 233.3 MB. Max. memory is 7.1 GB. [2020-09-24 20:14:26,977 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 144.7 MB. Free memory was 119.3 MB in the beginning and 119.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 808.12 ms. Allocated memory was 144.7 MB in the beginning and 202.9 MB in the end (delta: 58.2 MB). Free memory was 99.0 MB in the beginning and 168.6 MB in the end (delta: -69.6 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 102.20 ms. Allocated memory is still 202.9 MB. Free memory was 168.6 MB in the beginning and 164.5 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1399.78 ms. Allocated memory was 202.9 MB in the beginning and 232.8 MB in the end (delta: 29.9 MB). Free memory was 164.5 MB in the beginning and 170.1 MB in the end (delta: -5.6 MB). Peak memory consumption was 84.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 28186.62 ms. Allocated memory was 232.8 MB in the beginning and 557.8 MB in the end (delta: 325.1 MB). Free memory was 170.1 MB in the beginning and 261.8 MB in the end (delta: -91.7 MB). Peak memory consumption was 233.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 977]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L48] int waterLevel = 1; [L49] int methaneLevelCritical = 0; [L225] int pumpRunning = 0; [L226] int systemActive = 1; [L473] int cleanupTimeShifts = 4; [L776] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L549] int retValue_acc ; [L550] int tmp ; [L554] FCALL select_helpers() [L555] FCALL select_features() [L556] CALL, EXPR valid_product() [L598] int retValue_acc ; [L601] retValue_acc = 1 [L602] return (retValue_acc); [L556] RET, EXPR valid_product() [L556] tmp = valid_product() [L558] COND TRUE \read(tmp) [L560] FCALL setup() [L561] CALL runTest() [L540] CALL test() [L155] int splverifierCounter ; [L156] int tmp ; [L157] int tmp___0 ; [L158] int tmp___1 ; [L159] int tmp___2 ; [L162] splverifierCounter = 0 [L164] COND TRUE 1 [L166] COND TRUE splverifierCounter < 4 [L172] tmp = __VERIFIER_nondet_int() [L174] COND TRUE \read(tmp) [L176] CALL waterRise() [L66] COND TRUE waterLevel < 2 [L67] waterLevel = waterLevel + 1 [L176] RET waterRise() [L182] tmp___0 = __VERIFIER_nondet_int() [L184] COND FALSE !(\read(tmp___0)) [L192] tmp___2 = __VERIFIER_nondet_int() [L194] COND FALSE !(\read(tmp___2)) [L198] tmp___1 = __VERIFIER_nondet_int() [L200] COND TRUE \read(tmp___1) [L202] CALL stopSystem() [L426] COND FALSE !(\read(pumpRunning)) [L433] systemActive = 0 [L202] RET stopSystem() [L209] CALL timeShift() [L233] COND FALSE !(\read(pumpRunning)) [L240] COND FALSE !(\read(systemActive)) [L248] CALL __utac_acc__Specification3_spec__1() [L440] int tmp ; [L441] int tmp___0 ; [L442] int tmp___1 ; [L446] CALL, EXPR isMethaneLevelCritical() [L87] int retValue_acc ; [L90] retValue_acc = methaneLevelCritical [L91] return (retValue_acc); [L446] RET, EXPR isMethaneLevelCritical() [L446] tmp = isMethaneLevelCritical() [L448] COND FALSE !(\read(tmp)) [L452] CALL, EXPR getWaterLevel() [L119] int retValue_acc ; [L122] retValue_acc = waterLevel [L123] return (retValue_acc); [L452] RET, EXPR getWaterLevel() [L452] tmp___0 = getWaterLevel() [L454] COND TRUE tmp___0 == 2 [L456] CALL, EXPR isPumpRunning() [L340] int retValue_acc ; [L343] retValue_acc = pumpRunning [L344] return (retValue_acc); [L456] RET, EXPR isPumpRunning() [L456] tmp___1 = isPumpRunning() [L458] COND FALSE !(\read(tmp___1)) [L462] CALL __automaton_fail() [L977] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 649 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 28.0s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 12.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 847 SDtfs, 1914 SDslu, 1103 SDs, 0 SdLazy, 2525 SolverSat, 658 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 96 GetRequests, 64 SyntacticMatches, 5 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1198occurred in iteration=3, 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, 3 MinimizatonAttempts, 214 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 13.8s InterpolantComputationTime, 657 NumberOfCodeBlocks, 657 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 477 ConstructedInterpolants, 0 QuantifiedInterpolants, 228192 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...