/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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_product39.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 12:04:12,809 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 12:04:12,812 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 12:04:12,839 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 12:04:12,840 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 12:04:12,841 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 12:04:12,842 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 12:04:12,844 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 12:04:12,846 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 12:04:12,847 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 12:04:12,849 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 12:04:12,850 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 12:04:12,850 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 12:04:12,852 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 12:04:12,854 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 12:04:12,857 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 12:04:12,859 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 12:04:12,863 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 12:04:12,866 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 12:04:12,868 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 12:04:12,872 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 12:04:12,873 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 12:04:12,876 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 12:04:12,878 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 12:04:12,882 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 12:04:12,882 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 12:04:12,882 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 12:04:12,883 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 12:04:12,887 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 12:04:12,889 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 12:04:12,890 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 12:04:12,891 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 12:04:12,892 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 12:04:12,892 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 12:04:12,894 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 12:04:12,894 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 12:04:12,895 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 12:04:12,895 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 12:04:12,895 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 12:04:12,896 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 12:04:12,898 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 12:04:12,899 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 12:04:12,957 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 12:04:12,957 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 12:04:12,958 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 12:04:12,958 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 12:04:12,962 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 12:04:12,962 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 12:04:12,962 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 12:04:12,963 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 12:04:12,963 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 12:04:12,963 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 12:04:12,963 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 12:04:12,963 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 12:04:12,963 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 12:04:12,964 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 12:04:12,964 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 12:04:12,964 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 12:04:12,964 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 12:04:12,965 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 12:04:12,967 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 12:04:12,967 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 12:04:12,967 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 12:04:12,967 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 12:04:12,968 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 12:04:12,968 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 12:04:12,968 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 12:04:12,968 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 12:04:12,969 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 12:04:12,969 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 12:04:12,969 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 12:04:12,969 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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; [2020-09-25 12:04:13,463 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 12:04:13,481 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 12:04:13,486 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 12:04:13,488 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 12:04:13,488 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 12:04:13,489 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product39.cil.c [2020-09-25 12:04:13,570 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3591870d8/99751c9df4c24ba5b01f08d1d612ed67/FLAG149e9f7f1 [2020-09-25 12:04:14,155 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 12:04:14,156 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product39.cil.c [2020-09-25 12:04:14,172 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3591870d8/99751c9df4c24ba5b01f08d1d612ed67/FLAG149e9f7f1 [2020-09-25 12:04:14,430 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3591870d8/99751c9df4c24ba5b01f08d1d612ed67 [2020-09-25 12:04:14,445 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 12:04:14,452 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 12:04:14,453 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 12:04:14,453 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 12:04:14,459 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 12:04:14,460 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:04:14" (1/1) ... [2020-09-25 12:04:14,465 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5341aa08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:14, skipping insertion in model container [2020-09-25 12:04:14,465 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:04:14" (1/1) ... [2020-09-25 12:04:14,475 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 12:04:14,561 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 12:04:15,059 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:04:15,087 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 12:04:15,179 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:04:15,220 INFO L208 MainTranslator]: Completed translation [2020-09-25 12:04:15,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:15 WrapperNode [2020-09-25 12:04:15,221 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 12:04:15,222 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 12:04:15,222 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 12:04:15,223 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 12:04:15,238 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:15" (1/1) ... [2020-09-25 12:04:15,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:15" (1/1) ... [2020-09-25 12:04:15,261 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:15" (1/1) ... [2020-09-25 12:04:15,261 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:15" (1/1) ... [2020-09-25 12:04:15,297 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:15" (1/1) ... [2020-09-25 12:04:15,310 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:15" (1/1) ... [2020-09-25 12:04:15,315 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:15" (1/1) ... [2020-09-25 12:04:15,323 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 12:04:15,324 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 12:04:15,324 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 12:04:15,324 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 12:04:15,325 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:15" (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 12:04:15,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 12:04:15,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 12:04:15,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 12:04:15,405 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 12:04:15,405 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 12:04:15,406 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 12:04:15,406 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 12:04:15,407 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 12:04:15,407 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 12:04:15,408 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 12:04:15,408 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 12:04:15,408 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 12:04:15,408 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 12:04:15,409 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 12:04:15,409 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 12:04:15,410 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 12:04:15,410 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 12:04:15,410 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 12:04:15,411 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 12:04:15,411 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 12:04:15,412 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 12:04:15,413 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 12:04:15,413 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 12:04:15,413 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 12:04:15,415 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 12:04:15,415 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 12:04:15,415 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 12:04:15,415 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 12:04:15,416 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 12:04:15,416 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 12:04:15,416 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 12:04:15,416 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 12:04:15,416 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 12:04:15,416 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 12:04:15,417 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 12:04:15,417 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 12:04:15,417 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 12:04:15,417 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 12:04:15,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 12:04:15,417 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 12:04:15,418 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 12:04:15,418 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 12:04:15,418 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 12:04:15,418 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 12:04:15,418 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 12:04:15,418 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 12:04:15,418 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 12:04:15,419 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 12:04:15,419 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 12:04:15,419 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 12:04:15,419 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 12:04:15,420 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 12:04:15,420 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 12:04:15,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 12:04:15,420 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 12:04:15,420 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 12:04:15,420 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 12:04:15,421 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 12:04:15,421 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 12:04:15,421 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 12:04:15,421 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 12:04:15,421 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 12:04:15,421 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 12:04:15,422 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 12:04:15,422 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 12:04:15,422 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 12:04:15,422 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 12:04:15,422 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 12:04:15,422 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 12:04:15,423 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 12:04:15,423 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 12:04:15,423 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 12:04:15,423 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 12:04:15,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 12:04:15,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 12:04:15,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 12:04:15,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 12:04:15,424 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 12:04:15,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 12:04:15,424 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 12:04:15,424 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 12:04:15,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 12:04:15,425 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 12:04:15,425 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 12:04:15,425 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 12:04:15,425 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 12:04:15,425 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 12:04:15,426 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 12:04:15,426 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 12:04:15,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 12:04:15,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 12:04:15,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 12:04:16,708 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 12:04:16,709 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 12:04:16,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:04:16 BoogieIcfgContainer [2020-09-25 12:04:16,717 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 12:04:16,719 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 12:04:16,719 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 12:04:16,723 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 12:04:16,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:04:14" (1/3) ... [2020-09-25 12:04:16,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5999e499 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:04:16, skipping insertion in model container [2020-09-25 12:04:16,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:15" (2/3) ... [2020-09-25 12:04:16,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5999e499 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:04:16, skipping insertion in model container [2020-09-25 12:04:16,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:04:16" (3/3) ... [2020-09-25 12:04:16,732 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product39.cil.c [2020-09-25 12:04:16,747 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 12:04:16,760 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 12:04:16,786 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 12:04:16,827 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 12:04:16,827 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 12:04:16,827 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 12:04:16,827 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 12:04:16,828 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 12:04:16,828 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 12:04:16,828 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 12:04:16,828 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 12:04:16,860 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states. [2020-09-25 12:04:16,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 12:04:16,884 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:04:16,886 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 12:04:16,887 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:04:16,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:04:16,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1883472631, now seen corresponding path program 1 times [2020-09-25 12:04:16,911 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:04:16,912 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [984913116] [2020-09-25 12:04:16,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:04:17,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:17,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:17,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:19,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:22,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:22,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 12:04:22,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 12:04:22,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-09-25 12:04:22,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:22,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:22,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 12:04:22,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 12:04:22,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-25 12:04:22,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 12:04:22,944 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 12:04:22,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:04:23,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:23,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:23,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:23,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 12:04:23,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:23,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 321 [2020-09-25 12:04:23,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:23,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:23,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:23,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:23,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 12:04:23,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:23,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 12:04:23,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:23,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:23,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:23,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:04:23,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:23,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:04:23,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:23,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:23,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:23,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:23,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:04:23,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:23,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 12:04:23,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:23,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:23,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:23,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:04:23,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:23,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:04:23,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:23,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:23,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:23,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:23,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:04:23,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:23,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 12:04:23,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:23,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:23,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:23,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:04:23,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:23,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 12:04:23,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:23,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:23,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:23,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:23,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:04:23,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:23,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 12:04:23,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:23,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:23,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:23,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:04:23,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:23,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 12:04:23,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:23,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:23,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:23,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:23,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:04:23,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:23,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 12:04:23,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:23,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:23,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:23,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:04:23,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:23,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 12:04:23,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:23,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:23,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:23,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:23,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:04:23,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:23,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 12:04:23,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:23,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:23,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:23,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:04:23,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:23,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 12:04:23,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:23,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:23,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:04:23,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:23,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:04:23,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:23,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 12:04:23,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:23,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:23,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:23,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:04:23,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:23,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:04:23,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:23,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:23,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:04:23,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:04:23,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:04:23,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:23,617 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 12:04:23,618 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [984913116] [2020-09-25 12:04:23,620 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:04:23,620 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 12:04:23,622 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172682690] [2020-09-25 12:04:23,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 12:04:23,631 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:04:23,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 12:04:23,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 12:04:23,657 INFO L87 Difference]: Start difference. First operand 318 states. Second operand 8 states. [2020-09-25 12:04:24,501 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 12:04:26,333 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:04:26,710 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 12:04:27,135 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:04:27,611 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 12:04:27,948 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:04:28,275 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:04:28,629 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:04:30,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:04:30,059 INFO L93 Difference]: Finished difference Result 671 states and 831 transitions. [2020-09-25 12:04:30,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 12:04:30,061 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 153 [2020-09-25 12:04:30,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:04:30,083 INFO L225 Difference]: With dead ends: 671 [2020-09-25 12:04:30,084 INFO L226 Difference]: Without dead ends: 464 [2020-09-25 12:04:30,091 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 12:04:30,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2020-09-25 12:04:30,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 416. [2020-09-25 12:04:30,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 416 states. [2020-09-25 12:04:30,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 474 transitions. [2020-09-25 12:04:30,328 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 474 transitions. Word has length 153 [2020-09-25 12:04:30,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:04:30,331 INFO L479 AbstractCegarLoop]: Abstraction has 416 states and 474 transitions. [2020-09-25 12:04:30,332 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 12:04:30,332 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 474 transitions. [2020-09-25 12:04:30,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-09-25 12:04:30,352 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:04:30,353 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] [2020-09-25 12:04:30,354 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 12:04:30,354 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:04:30,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:04:30,355 INFO L82 PathProgramCache]: Analyzing trace with hash 886163450, now seen corresponding path program 1 times [2020-09-25 12:04:30,355 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:04:30,355 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1374996325] [2020-09-25 12:04:30,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:04:30,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:30,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:31,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:31,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-09-25 12:04:31,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:31,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1182 [2020-09-25 12:04:31,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:31,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:31,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 12:04:31,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 12:04:31,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 12:04:31,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:31,964 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 12:04:31,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:04:31,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:32,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:32,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:32,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 12:04:32,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:32,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 251 [2020-09-25 12:04:32,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:32,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:32,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:32,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:32,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 12:04:32,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:32,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 12:04:32,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:32,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:32,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:32,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:04:32,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:32,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:04:32,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:32,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:32,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:32,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:32,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:04:32,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:32,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 12:04:32,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:32,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:32,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:32,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:04:32,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:32,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 12:04:32,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:32,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:32,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:32,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:32,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:04:32,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:32,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 12:04:32,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:32,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:32,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:32,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:04:32,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:32,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 12:04:32,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:32,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:32,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:32,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:32,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:04:32,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:32,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 12:04:32,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:32,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:32,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:32,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:04:32,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:32,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:04:32,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:32,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:32,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:32,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:32,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:04:32,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:32,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 12:04:32,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:32,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:32,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:32,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:04:32,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:32,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:04:32,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:32,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:32,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:32,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:32,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 12:04:32,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:32,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 12:04:32,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:32,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:32,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:32,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:04:32,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:32,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:04:32,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:32,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:32,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:04:32,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:04:32,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:04:32,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:32,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-09-25 12:04:32,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:32,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:32,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:32,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:04:32,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:32,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:04:32,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:32,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:32,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:04:32,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:04:32,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:04:32,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:32,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-09-25 12:04:32,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:32,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:32,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:32,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:04:32,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:32,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:04:32,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:32,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:32,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:04:32,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:04:32,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:04:32,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:32,500 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 12:04:32,501 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1374996325] [2020-09-25 12:04:32,501 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:04:32,501 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 12:04:32,501 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754064572] [2020-09-25 12:04:32,505 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 12:04:32,505 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:04:32,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 12:04:32,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 12:04:32,506 INFO L87 Difference]: Start difference. First operand 416 states and 474 transitions. Second operand 6 states. [2020-09-25 12:04:32,964 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 12:04:33,745 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 12:04:36,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:04:36,655 INFO L93 Difference]: Finished difference Result 1294 states and 1612 transitions. [2020-09-25 12:04:36,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 12:04:36,656 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 168 [2020-09-25 12:04:36,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:04:36,667 INFO L225 Difference]: With dead ends: 1294 [2020-09-25 12:04:36,667 INFO L226 Difference]: Without dead ends: 988 [2020-09-25 12:04:36,671 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-09-25 12:04:36,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 988 states. [2020-09-25 12:04:36,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 988 to 879. [2020-09-25 12:04:36,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 879 states. [2020-09-25 12:04:36,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 879 states to 879 states and 1039 transitions. [2020-09-25 12:04:36,830 INFO L78 Accepts]: Start accepts. Automaton has 879 states and 1039 transitions. Word has length 168 [2020-09-25 12:04:36,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:04:36,832 INFO L479 AbstractCegarLoop]: Abstraction has 879 states and 1039 transitions. [2020-09-25 12:04:36,833 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 12:04:36,833 INFO L276 IsEmpty]: Start isEmpty. Operand 879 states and 1039 transitions. [2020-09-25 12:04:36,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-09-25 12:04:36,840 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:04:36,840 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:04:36,840 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 12:04:36,841 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:04:36,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:04:36,841 INFO L82 PathProgramCache]: Analyzing trace with hash -755283321, now seen corresponding path program 1 times [2020-09-25 12:04:36,841 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:04:36,842 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1459719016] [2020-09-25 12:04:36,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:04:36,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:36,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:37,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:37,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:39,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:41,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:41,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-09-25 12:04:41,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 12:04:41,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-09-25 12:04:41,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:41,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:41,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 12:04:41,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 12:04:41,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-25 12:04:41,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:42,293 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 12:04:42,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:04:42,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:42,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:42,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:42,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 12:04:42,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:42,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241 [2020-09-25 12:04:42,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:42,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:42,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:42,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:42,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 12:04:42,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:42,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 12:04:42,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:42,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:42,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:42,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:04:42,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:42,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:04:42,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:42,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:42,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:42,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:42,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:04:42,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:42,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 12:04:42,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:42,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:42,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:42,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:04:42,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:42,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:04:42,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:42,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:42,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:42,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:42,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:04:42,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:04:42,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 12:04:42,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:42,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:42,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:42,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:04:42,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:42,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 12:04:42,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:42,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:42,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:42,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:42,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:04:42,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:42,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 12:04:42,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:42,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:42,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:42,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:04:42,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:42,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 12:04:42,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:42,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:42,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:42,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:42,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:04:42,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:42,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 12:04:42,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:42,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:42,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:42,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:04:42,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:42,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 12:04:42,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:42,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:42,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:42,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:42,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 12:04:42,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:42,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 12:04:42,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:42,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:42,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:42,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:42,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 12:04:42,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:04:42,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 12:04:42,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:42,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:42,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:04:42,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:04:42,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 12:04:42,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:42,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:04:42,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:42,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:42,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:42,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 12:04:42,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:42,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 12:04:42,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:42,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:42,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:04:42,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:04:42,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 12:04:42,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:42,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:04:42,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:42,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:42,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:42,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:04:42,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:42,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:04:42,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:42,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:42,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:42,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:42,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:04:42,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:42,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 12:04:42,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:42,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:42,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:42,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:04:42,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:42,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:04:42,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:42,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:42,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:04:42,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:04:42,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:04:42,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:42,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-25 12:04:42,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:42,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:42,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:42,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:04:42,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:42,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:04:42,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:42,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:42,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:04:42,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:04:42,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:04:42,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:42,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-09-25 12:04:42,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:42,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:42,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:42,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:04:42,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:42,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:04:42,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:42,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:42,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:04:42,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:04:42,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:04:42,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:42,916 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 12:04:42,916 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1459719016] [2020-09-25 12:04:42,917 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:04:42,917 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 12:04:42,917 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283313912] [2020-09-25 12:04:42,919 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 12:04:42,919 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:04:42,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 12:04:42,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 12:04:42,920 INFO L87 Difference]: Start difference. First operand 879 states and 1039 transitions. Second operand 7 states. [2020-09-25 12:04:43,631 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 12:04:45,666 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 12:04:47,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:04:47,803 INFO L93 Difference]: Finished difference Result 2312 states and 3025 transitions. [2020-09-25 12:04:47,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 12:04:47,804 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 181 [2020-09-25 12:04:47,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:04:47,823 INFO L225 Difference]: With dead ends: 2312 [2020-09-25 12:04:47,823 INFO L226 Difference]: Without dead ends: 1543 [2020-09-25 12:04:47,827 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2020-09-25 12:04:47,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1543 states. [2020-09-25 12:04:48,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1543 to 1266. [2020-09-25 12:04:48,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1266 states. [2020-09-25 12:04:48,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1266 states to 1266 states and 1496 transitions. [2020-09-25 12:04:48,025 INFO L78 Accepts]: Start accepts. Automaton has 1266 states and 1496 transitions. Word has length 181 [2020-09-25 12:04:48,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:04:48,026 INFO L479 AbstractCegarLoop]: Abstraction has 1266 states and 1496 transitions. [2020-09-25 12:04:48,026 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 12:04:48,026 INFO L276 IsEmpty]: Start isEmpty. Operand 1266 states and 1496 transitions. [2020-09-25 12:04:48,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 12:04:48,030 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:04:48,030 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 12:04:48,031 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 12:04:48,031 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:04:48,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:04:48,031 INFO L82 PathProgramCache]: Analyzing trace with hash 82436204, now seen corresponding path program 1 times [2020-09-25 12:04:48,032 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:04:48,032 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1056639691] [2020-09-25 12:04:48,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:04:48,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 12:04:48,098 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 12:04:48,098 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 12:04:48,104 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 12:04:48,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 12:04:48 BoogieIcfgContainer [2020-09-25 12:04:48,132 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 12:04:48,135 INFO L168 Benchmark]: Toolchain (without parser) took 33687.76 ms. Allocated memory was 140.0 MB in the beginning and 607.6 MB in the end (delta: 467.7 MB). Free memory was 103.0 MB in the beginning and 147.8 MB in the end (delta: -44.7 MB). Peak memory consumption was 422.9 MB. Max. memory is 7.1 GB. [2020-09-25 12:04:48,136 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 12:04:48,137 INFO L168 Benchmark]: CACSL2BoogieTranslator took 768.84 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 102.4 MB in the beginning and 170.5 MB in the end (delta: -68.1 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. [2020-09-25 12:04:48,137 INFO L168 Benchmark]: Boogie Preprocessor took 100.95 ms. Allocated memory is still 202.9 MB. Free memory was 170.5 MB in the beginning and 166.3 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-09-25 12:04:48,138 INFO L168 Benchmark]: RCFGBuilder took 1393.51 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 166.3 MB in the beginning and 173.5 MB in the end (delta: -7.1 MB). Peak memory consumption was 81.8 MB. Max. memory is 7.1 GB. [2020-09-25 12:04:48,139 INFO L168 Benchmark]: TraceAbstraction took 31414.05 ms. Allocated memory was 235.9 MB in the beginning and 607.6 MB in the end (delta: 371.7 MB). Free memory was 173.5 MB in the beginning and 147.8 MB in the end (delta: 25.7 MB). Peak memory consumption was 397.4 MB. Max. memory is 7.1 GB. [2020-09-25 12:04:48,143 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 768.84 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 102.4 MB in the beginning and 170.5 MB in the end (delta: -68.1 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 100.95 ms. Allocated memory is still 202.9 MB. Free memory was 170.5 MB in the beginning and 166.3 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1393.51 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 166.3 MB in the beginning and 173.5 MB in the end (delta: -7.1 MB). Peak memory consumption was 81.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 31414.05 ms. Allocated memory was 235.9 MB in the beginning and 607.6 MB in the end (delta: 371.7 MB). Free memory was 173.5 MB in the beginning and 147.8 MB in the end (delta: 25.7 MB). Peak memory consumption was 397.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 451]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L85] int waterLevel = 1; [L86] int methaneLevelCritical = 0; [L185] int pumpRunning = 0; [L186] int systemActive = 1; [L625] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L822] int cleanupTimeShifts = 4; [L895] int retValue_acc ; [L896] int tmp ; [L900] FCALL select_helpers() [L901] FCALL select_features() [L902] CALL, EXPR valid_product() [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L902] RET, EXPR valid_product() [L902] tmp = valid_product() [L904] COND TRUE \read(tmp) [L906] FCALL setup() [L907] CALL runTest() [L889] CALL test() [L381] int splverifierCounter ; [L382] int tmp ; [L383] int tmp___0 ; [L384] int tmp___1 ; [L385] int tmp___2 ; [L388] splverifierCounter = 0 [L390] COND TRUE 1 [L392] COND TRUE splverifierCounter < 4 [L398] tmp = __VERIFIER_nondet_int() [L400] COND TRUE \read(tmp) [L402] CALL waterRise() [L103] COND TRUE waterLevel < 2 [L104] waterLevel = waterLevel + 1 [L402] RET waterRise() [L408] tmp___0 = __VERIFIER_nondet_int() [L410] COND FALSE !(\read(tmp___0)) [L418] tmp___2 = __VERIFIER_nondet_int() [L420] COND FALSE !(\read(tmp___2)) [L424] tmp___1 = __VERIFIER_nondet_int() [L426] COND TRUE \read(tmp___1) [L428] CALL stopSystem() [L367] COND FALSE !(\read(pumpRunning)) [L374] systemActive = 0 [L428] RET stopSystem() [L435] CALL timeShift() [L193] COND FALSE !(\read(pumpRunning)) [L200] COND FALSE !(\read(systemActive)) [L208] CALL __utac_acc__Specification3_spec__1() [L919] int tmp ; [L920] int tmp___0 ; [L921] int tmp___1 ; [L925] CALL, EXPR isMethaneLevelCritical() [L124] int retValue_acc ; [L127] retValue_acc = methaneLevelCritical [L128] return (retValue_acc); [L925] RET, EXPR isMethaneLevelCritical() [L925] tmp = isMethaneLevelCritical() [L927] COND FALSE !(\read(tmp)) [L931] CALL, EXPR getWaterLevel() [L156] int retValue_acc ; [L159] retValue_acc = waterLevel [L160] return (retValue_acc); [L931] RET, EXPR getWaterLevel() [L931] tmp___0 = getWaterLevel() [L933] COND TRUE tmp___0 == 2 [L935] CALL, EXPR isPumpRunning() [L300] int retValue_acc ; [L303] retValue_acc = pumpRunning [L304] return (retValue_acc); [L935] RET, EXPR isPumpRunning() [L935] tmp___1 = isPumpRunning() [L937] COND FALSE !(\read(tmp___1)) [L941] CALL __automaton_fail() [L451] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 630 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 31.2s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 15.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 915 SDtfs, 1821 SDslu, 1319 SDs, 0 SdLazy, 3007 SolverSat, 697 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 114 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 4.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1266occurred 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: 0.5s AutomataMinimizationTime, 3 MinimizatonAttempts, 434 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 14.1s InterpolantComputationTime, 679 NumberOfCodeBlocks, 679 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 499 ConstructedInterpolants, 0 QuantifiedInterpolants, 263074 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...