/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 SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product63.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 12:44:13,799 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 12:44:13,803 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 12:44:13,847 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 12:44:13,848 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 12:44:13,856 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 12:44:13,858 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 12:44:13,861 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 12:44:13,864 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 12:44:13,867 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 12:44:13,868 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 12:44:13,869 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 12:44:13,869 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 12:44:13,872 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 12:44:13,874 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 12:44:13,876 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 12:44:13,878 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 12:44:13,879 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 12:44:13,881 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 12:44:13,891 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 12:44:13,893 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 12:44:13,894 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 12:44:13,895 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 12:44:13,896 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 12:44:13,911 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 12:44:13,911 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 12:44:13,912 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 12:44:13,913 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 12:44:13,916 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 12:44:13,917 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 12:44:13,917 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 12:44:13,921 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 12:44:13,922 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 12:44:13,923 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 12:44:13,924 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 12:44:13,926 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 12:44:13,927 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 12:44:13,927 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 12:44:13,927 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 12:44:13,928 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 12:44:13,929 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 12:44:13,932 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 [2020-10-13 12:44:13,970 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 12:44:13,970 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 12:44:13,973 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 12:44:13,973 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 12:44:13,973 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 12:44:13,973 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 12:44:13,974 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 12:44:13,974 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 12:44:13,974 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 12:44:13,974 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 12:44:13,975 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 12:44:13,976 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 12:44:13,976 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 12:44:13,976 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 12:44:13,977 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 12:44:13,977 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 12:44:13,977 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 12:44:13,977 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 12:44:13,977 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 12:44:13,978 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 12:44:13,978 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 12:44:13,978 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 12:44:13,978 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 12:44:13,979 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 12:44:13,979 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 12:44:13,979 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 12:44:13,979 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 12:44:13,979 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 12:44:13,980 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 12:44:13,980 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 -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 12:44:14,274 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 12:44:14,288 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 12:44:14,291 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 12:44:14,293 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 12:44:14,293 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 12:44:14,294 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product63.cil.c [2020-10-13 12:44:14,372 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ba1ffca62/ccbf1cc41cb34ff9880e3649d8745c4c/FLAG779d98575 [2020-10-13 12:44:14,908 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 12:44:14,909 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product63.cil.c [2020-10-13 12:44:14,937 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ba1ffca62/ccbf1cc41cb34ff9880e3649d8745c4c/FLAG779d98575 [2020-10-13 12:44:15,232 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ba1ffca62/ccbf1cc41cb34ff9880e3649d8745c4c [2020-10-13 12:44:15,245 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 12:44:15,247 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 12:44:15,251 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 12:44:15,252 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 12:44:15,255 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 12:44:15,257 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:44:15" (1/1) ... [2020-10-13 12:44:15,262 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@422405df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:15, skipping insertion in model container [2020-10-13 12:44:15,262 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:44:15" (1/1) ... [2020-10-13 12:44:15,274 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 12:44:15,340 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 12:44:15,773 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 12:44:15,785 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 12:44:15,890 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 12:44:15,944 INFO L208 MainTranslator]: Completed translation [2020-10-13 12:44:15,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:15 WrapperNode [2020-10-13 12:44:15,945 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 12:44:15,946 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 12:44:15,946 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 12:44:15,946 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 12:44:15,957 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:15" (1/1) ... [2020-10-13 12:44:15,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:15" (1/1) ... [2020-10-13 12:44:15,979 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:15" (1/1) ... [2020-10-13 12:44:15,979 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:15" (1/1) ... [2020-10-13 12:44:16,013 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:15" (1/1) ... [2020-10-13 12:44:16,025 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:15" (1/1) ... [2020-10-13 12:44:16,035 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:15" (1/1) ... [2020-10-13 12:44:16,043 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 12:44:16,044 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 12:44:16,044 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 12:44:16,044 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 12:44:16,045 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:15" (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 [2020-10-13 12:44:16,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 12:44:16,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 12:44:16,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-13 12:44:16,113 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-13 12:44:16,113 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-13 12:44:16,113 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-13 12:44:16,113 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-13 12:44:16,113 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 12:44:16,113 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-13 12:44:16,114 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-13 12:44:16,114 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-13 12:44:16,114 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-13 12:44:16,114 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-13 12:44:16,114 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-13 12:44:16,114 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-13 12:44:16,115 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-10-13 12:44:16,115 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-13 12:44:16,115 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-10-13 12:44:16,115 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-13 12:44:16,115 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-13 12:44:16,115 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-13 12:44:16,116 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-13 12:44:16,116 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-13 12:44:16,116 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-13 12:44:16,116 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-13 12:44:16,117 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-13 12:44:16,117 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-13 12:44:16,117 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-13 12:44:16,117 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-13 12:44:16,117 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-13 12:44:16,117 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-13 12:44:16,118 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-13 12:44:16,118 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-13 12:44:16,118 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-13 12:44:16,118 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-13 12:44:16,118 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-13 12:44:16,119 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-13 12:44:16,119 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-13 12:44:16,119 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-13 12:44:16,119 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-13 12:44:16,119 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-13 12:44:16,119 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-13 12:44:16,120 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-13 12:44:16,120 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 12:44:16,120 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 12:44:16,120 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-13 12:44:16,120 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-13 12:44:16,120 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-13 12:44:16,120 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-13 12:44:16,121 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-13 12:44:16,121 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-13 12:44:16,121 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-13 12:44:16,121 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-13 12:44:16,121 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-13 12:44:16,121 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-13 12:44:16,122 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-13 12:44:16,122 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-13 12:44:16,122 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-13 12:44:16,122 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 12:44:16,122 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-13 12:44:16,122 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-13 12:44:16,122 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-13 12:44:16,122 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-13 12:44:16,123 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-13 12:44:16,123 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-13 12:44:16,123 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-13 12:44:16,123 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-13 12:44:16,123 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-13 12:44:16,123 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-13 12:44:16,123 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-13 12:44:16,123 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-13 12:44:16,124 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-13 12:44:16,124 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-13 12:44:16,124 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-13 12:44:16,124 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-13 12:44:16,124 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-10-13 12:44:16,124 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-13 12:44:16,125 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-10-13 12:44:16,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 12:44:16,125 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-13 12:44:16,125 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-13 12:44:16,125 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-13 12:44:16,125 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 12:44:16,125 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-13 12:44:16,125 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-13 12:44:16,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 12:44:16,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 12:44:16,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 12:44:16,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 12:44:16,126 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-13 12:44:16,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 12:44:16,126 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-13 12:44:16,126 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-13 12:44:16,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 12:44:16,126 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-13 12:44:16,127 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-13 12:44:16,127 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-13 12:44:16,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 12:44:16,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-13 12:44:16,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 12:44:17,162 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 12:44:17,163 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-13 12:44:17,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:44:17 BoogieIcfgContainer [2020-10-13 12:44:17,168 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 12:44:17,170 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 12:44:17,170 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 12:44:17,173 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 12:44:17,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:44:15" (1/3) ... [2020-10-13 12:44:17,174 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fdbbf08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:44:17, skipping insertion in model container [2020-10-13 12:44:17,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:15" (2/3) ... [2020-10-13 12:44:17,175 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fdbbf08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:44:17, skipping insertion in model container [2020-10-13 12:44:17,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:44:17" (3/3) ... [2020-10-13 12:44:17,177 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product63.cil.c [2020-10-13 12:44:17,187 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 12:44:17,195 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 12:44:17,209 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 12:44:17,234 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 12:44:17,235 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 12:44:17,235 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 12:44:17,235 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 12:44:17,235 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 12:44:17,235 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 12:44:17,235 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 12:44:17,236 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 12:44:17,259 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states. [2020-10-13 12:44:17,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-13 12:44:17,271 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:44:17,273 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] [2020-10-13 12:44:17,273 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:44:17,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:44:17,280 INFO L82 PathProgramCache]: Analyzing trace with hash -1970857402, now seen corresponding path program 1 times [2020-10-13 12:44:17,288 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:44:17,288 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1916585309] [2020-10-13 12:44:17,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:44:17,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:17,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:17,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:18,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:20,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:20,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-13 12:44:20,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 12:44:20,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2466 [2020-10-13 12:44:20,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:20,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:20,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-13 12:44:20,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:20,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 12 [2020-10-13 12:44:20,470 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:44:20,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:44:20,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:20,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:20,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:20,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:20,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:20,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-13 12:44:20,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:20,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:20,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:20,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:20,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:20,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:44:20,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:20,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:20,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:20,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:44:20,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:20,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:44:20,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:20,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:20,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:20,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:20,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:20,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:44:20,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:20,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:20,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:20,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:44:20,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:20,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:20,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:20,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:20,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:20,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:20,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:20,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:44:20,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:20,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:20,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:20,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:20,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:20,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:44:20,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:20,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:20,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:20,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:20,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:20,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:44:20,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:20,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:20,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:20,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:44:20,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:20,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:20,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:20,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:20,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:20,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:20,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:20,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-13 12:44:20,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:20,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:20,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:20,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:20,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:20,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:44:20,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:20,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:20,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:44:20,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:20,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:20,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 12:44:20,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:20,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:20,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:20,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:20,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:20,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:44:20,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:20,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:20,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:44:20,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:20,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:20,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-13 12:44:20,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:20,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:20,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:20,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:20,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:20,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:44:20,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:20,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:20,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:44:20,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:20,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:20,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:44:20,616 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1916585309] [2020-10-13 12:44:20,618 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:44:20,618 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 12:44:20,619 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303629251] [2020-10-13 12:44:20,626 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 12:44:20,627 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:44:20,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 12:44:20,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 12:44:20,645 INFO L87 Difference]: Start difference. First operand 205 states. Second operand 3 states. [2020-10-13 12:44:22,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:44:22,496 INFO L93 Difference]: Finished difference Result 371 states and 484 transitions. [2020-10-13 12:44:22,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 12:44:22,498 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-10-13 12:44:22,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:44:22,515 INFO L225 Difference]: With dead ends: 371 [2020-10-13 12:44:22,515 INFO L226 Difference]: Without dead ends: 200 [2020-10-13 12:44:22,520 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 12:44:22,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2020-10-13 12:44:22,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 162. [2020-10-13 12:44:22,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-10-13 12:44:22,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 194 transitions. [2020-10-13 12:44:22,623 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 194 transitions. Word has length 52 [2020-10-13 12:44:22,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:44:22,624 INFO L479 AbstractCegarLoop]: Abstraction has 162 states and 194 transitions. [2020-10-13 12:44:22,624 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 12:44:22,625 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 194 transitions. [2020-10-13 12:44:22,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-13 12:44:22,628 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:44:22,629 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] [2020-10-13 12:44:22,629 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 12:44:22,629 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:44:22,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:44:22,630 INFO L82 PathProgramCache]: Analyzing trace with hash -1981154653, now seen corresponding path program 1 times [2020-10-13 12:44:22,630 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:44:22,631 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [768896665] [2020-10-13 12:44:22,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:44:22,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:22,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:22,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:23,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:25,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:25,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-13 12:44:25,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 12:44:25,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2544 [2020-10-13 12:44:25,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:25,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:44:25,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-13 12:44:25,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 12:44:25,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:25,503 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:44:25,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:44:25,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:25,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:25,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:25,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:25,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:25,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 12:44:25,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:25,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:25,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:25,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:25,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:25,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:44:25,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:25,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:25,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:25,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:44:25,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:25,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:25,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:25,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:25,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:25,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:25,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:25,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:44:25,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:25,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:25,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:25,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:44:25,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:25,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:25,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:25,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:25,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:25,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:25,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:25,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:44:25,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:25,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:25,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:25,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:25,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:25,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:25,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:25,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:25,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:25,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:25,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:44:25,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:44:25,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:25,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:25,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:25,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:44:25,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:25,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:25,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:25,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:25,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:25,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:25,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:44:25,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 12:44:25,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:25,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:25,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:25,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:25,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:25,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:25,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:25,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:25,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:44:25,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:25,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:44:25,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 12:44:25,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:25,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:25,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:25,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:25,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:25,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:25,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:25,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:25,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:44:25,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:25,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:44:25,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-13 12:44:25,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:25,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:25,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:25,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:25,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:25,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:44:25,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:25,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:25,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:44:25,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:25,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:44:25,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:44:25,616 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [768896665] [2020-10-13 12:44:25,617 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:44:25,617 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 12:44:25,617 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119661653] [2020-10-13 12:44:25,620 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 12:44:25,620 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:44:25,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 12:44:25,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 12:44:25,621 INFO L87 Difference]: Start difference. First operand 162 states and 194 transitions. Second operand 4 states. [2020-10-13 12:44:26,113 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:44:27,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:44:27,130 INFO L93 Difference]: Finished difference Result 298 states and 367 transitions. [2020-10-13 12:44:27,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 12:44:27,131 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-10-13 12:44:27,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:44:27,134 INFO L225 Difference]: With dead ends: 298 [2020-10-13 12:44:27,135 INFO L226 Difference]: Without dead ends: 184 [2020-10-13 12:44:27,139 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-13 12:44:27,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2020-10-13 12:44:27,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 153. [2020-10-13 12:44:27,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-10-13 12:44:27,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 182 transitions. [2020-10-13 12:44:27,209 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 182 transitions. Word has length 53 [2020-10-13 12:44:27,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:44:27,209 INFO L479 AbstractCegarLoop]: Abstraction has 153 states and 182 transitions. [2020-10-13 12:44:27,209 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 12:44:27,209 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 182 transitions. [2020-10-13 12:44:27,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-13 12:44:27,217 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:44:27,217 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] [2020-10-13 12:44:27,217 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 12:44:27,218 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:44:27,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:44:27,218 INFO L82 PathProgramCache]: Analyzing trace with hash 1942602443, now seen corresponding path program 1 times [2020-10-13 12:44:27,218 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:44:27,219 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1235203971] [2020-10-13 12:44:27,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:44:27,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:27,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:27,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:28,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:28,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 12:44:28,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 12:44:28,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1645 [2020-10-13 12:44:28,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:28,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 12:44:28,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:44:28,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-13 12:44:28,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:44:29,153 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:44:29,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:44:29,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:29,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:29,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:29,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:29,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:29,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-13 12:44:29,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:29,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:44:29,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:29,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 12:44:29,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:29,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:44:29,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:29,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:29,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:29,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:44:29,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:29,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:29,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:29,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:44:29,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:29,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:44:29,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:29,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:44:29,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:29,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:29,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:29,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:44:29,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:29,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:29,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:29,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:44:29,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:29,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:44:29,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:29,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:44:29,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:29,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:29,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:29,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:29,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:29,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:29,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:29,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:44:29,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:29,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:44:29,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:29,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:44:29,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:29,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:29,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:29,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:44:29,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:29,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:29,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:29,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:44:29,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:29,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:44:29,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:44:29,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-13 12:44:29,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:29,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:29,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:29,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:29,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:29,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:29,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:29,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:29,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:44:29,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:29,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:29,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-13 12:44:29,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:29,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:29,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:29,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:29,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:29,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:29,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:29,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:29,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:44:29,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:29,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:29,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 12:44:29,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:29,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:29,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:29,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:29,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:29,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:29,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:29,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:29,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:44:29,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:29,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:29,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:44:29,299 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1235203971] [2020-10-13 12:44:29,300 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:44:29,300 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 12:44:29,300 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632015196] [2020-10-13 12:44:29,300 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 12:44:29,301 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:44:29,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 12:44:29,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 12:44:29,301 INFO L87 Difference]: Start difference. First operand 153 states and 182 transitions. Second operand 4 states. [2020-10-13 12:44:29,652 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:44:31,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:44:31,473 INFO L93 Difference]: Finished difference Result 458 states and 570 transitions. [2020-10-13 12:44:31,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 12:44:31,473 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 57 [2020-10-13 12:44:31,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:44:31,477 INFO L225 Difference]: With dead ends: 458 [2020-10-13 12:44:31,478 INFO L226 Difference]: Without dead ends: 329 [2020-10-13 12:44:31,479 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-13 12:44:31,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2020-10-13 12:44:31,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 276. [2020-10-13 12:44:31,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-10-13 12:44:31,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 335 transitions. [2020-10-13 12:44:31,575 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 335 transitions. Word has length 57 [2020-10-13 12:44:31,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:44:31,576 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 335 transitions. [2020-10-13 12:44:31,576 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 12:44:31,576 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 335 transitions. [2020-10-13 12:44:31,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-13 12:44:31,578 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:44:31,578 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] [2020-10-13 12:44:31,579 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 12:44:31,579 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:44:31,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:44:31,579 INFO L82 PathProgramCache]: Analyzing trace with hash -1716572839, now seen corresponding path program 1 times [2020-10-13 12:44:31,580 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:44:31,580 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1215086816] [2020-10-13 12:44:31,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:44:31,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:31,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:32,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:32,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-13 12:44:32,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:32,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 960 [2020-10-13 12:44:32,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:32,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 12:44:32,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:44:32,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 12:44:32,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:32,817 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:44:32,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:44:32,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:32,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:32,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:32,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:32,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:32,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-13 12:44:32,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:32,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:44:32,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:32,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 12:44:32,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:32,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:44:32,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:32,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:32,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:32,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:44:32,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:32,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:32,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:32,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:44:32,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:32,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:44:32,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:32,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:44:32,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:32,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:32,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:32,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:44:32,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:32,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:32,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:32,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:44:32,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:32,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:44:32,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:32,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:44:32,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:32,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:32,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:32,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:32,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:32,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:32,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:32,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:44:32,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:32,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:44:32,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:32,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:44:32,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:32,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:32,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:32,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:44:32,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:32,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:32,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:32,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:44:32,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:32,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:44:32,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:32,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 12:44:32,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:32,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:32,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:32,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:44:32,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:32,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:44:32,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:32,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:44:32,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:32,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 12:44:32,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:32,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-13 12:44:32,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:32,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:32,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:32,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:32,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:32,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:44:32,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:32,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:44:32,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:32,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:44:32,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:32,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 12:44:32,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:32,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:32,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:32,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:32,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:32,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:44:32,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:32,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:44:32,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:32,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:44:32,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:32,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-13 12:44:32,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:32,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:32,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:32,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:32,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:32,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:32,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:32,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:32,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:44:32,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:32,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:32,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:44:32,999 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1215086816] [2020-10-13 12:44:33,000 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:44:33,000 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 12:44:33,000 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799081768] [2020-10-13 12:44:33,001 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 12:44:33,001 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:44:33,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 12:44:33,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-13 12:44:33,002 INFO L87 Difference]: Start difference. First operand 276 states and 335 transitions. Second operand 8 states. [2020-10-13 12:44:33,485 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:44:35,024 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-13 12:44:35,440 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:44:35,731 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:44:36,085 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:44:37,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:44:37,089 INFO L93 Difference]: Finished difference Result 864 states and 1130 transitions. [2020-10-13 12:44:37,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 12:44:37,090 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2020-10-13 12:44:37,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:44:37,096 INFO L225 Difference]: With dead ends: 864 [2020-10-13 12:44:37,096 INFO L226 Difference]: Without dead ends: 612 [2020-10-13 12:44:37,097 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-10-13 12:44:37,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2020-10-13 12:44:37,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 539. [2020-10-13 12:44:37,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2020-10-13 12:44:37,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 665 transitions. [2020-10-13 12:44:37,211 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 665 transitions. Word has length 63 [2020-10-13 12:44:37,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:44:37,212 INFO L479 AbstractCegarLoop]: Abstraction has 539 states and 665 transitions. [2020-10-13 12:44:37,212 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 12:44:37,212 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 665 transitions. [2020-10-13 12:44:37,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-13 12:44:37,215 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:44:37,215 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] [2020-10-13 12:44:37,215 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 12:44:37,215 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:44:37,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:44:37,216 INFO L82 PathProgramCache]: Analyzing trace with hash -1081719041, now seen corresponding path program 1 times [2020-10-13 12:44:37,216 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:44:37,216 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1528481491] [2020-10-13 12:44:37,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:44:37,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-13 12:44:37,254 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-13 12:44:37,254 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-13 12:44:37,258 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 12:44:37,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:44:37 BoogieIcfgContainer [2020-10-13 12:44:37,281 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 12:44:37,283 INFO L168 Benchmark]: Toolchain (without parser) took 22036.51 ms. Allocated memory was 141.0 MB in the beginning and 601.9 MB in the end (delta: 460.8 MB). Free memory was 103.2 MB in the beginning and 226.0 MB in the end (delta: -122.8 MB). Peak memory consumption was 338.0 MB. Max. memory is 7.1 GB. [2020-10-13 12:44:37,284 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-13 12:44:37,285 INFO L168 Benchmark]: CACSL2BoogieTranslator took 694.11 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 103.0 MB in the beginning and 171.4 MB in the end (delta: -68.4 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. [2020-10-13 12:44:37,286 INFO L168 Benchmark]: Boogie Preprocessor took 97.39 ms. Allocated memory is still 204.5 MB. Free memory was 171.4 MB in the beginning and 167.3 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-10-13 12:44:37,286 INFO L168 Benchmark]: RCFGBuilder took 1124.72 ms. Allocated memory was 204.5 MB in the beginning and 238.6 MB in the end (delta: 34.1 MB). Free memory was 167.3 MB in the beginning and 191.8 MB in the end (delta: -24.5 MB). Peak memory consumption was 80.9 MB. Max. memory is 7.1 GB. [2020-10-13 12:44:37,287 INFO L168 Benchmark]: TraceAbstraction took 20111.46 ms. Allocated memory was 238.6 MB in the beginning and 601.9 MB in the end (delta: 363.3 MB). Free memory was 191.8 MB in the beginning and 226.0 MB in the end (delta: -34.2 MB). Peak memory consumption was 329.1 MB. Max. memory is 7.1 GB. [2020-10-13 12:44:37,291 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 694.11 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 103.0 MB in the beginning and 171.4 MB in the end (delta: -68.4 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 97.39 ms. Allocated memory is still 204.5 MB. Free memory was 171.4 MB in the beginning and 167.3 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1124.72 ms. Allocated memory was 204.5 MB in the beginning and 238.6 MB in the end (delta: 34.1 MB). Free memory was 167.3 MB in the beginning and 191.8 MB in the end (delta: -24.5 MB). Peak memory consumption was 80.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 20111.46 ms. Allocated memory was 238.6 MB in the beginning and 601.9 MB in the end (delta: 363.3 MB). Free memory was 191.8 MB in the beginning and 226.0 MB in the end (delta: -34.2 MB). Peak memory consumption was 329.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 619]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L188] int pumpRunning = 0; [L189] int systemActive = 1; [L512] int waterLevel = 1; [L513] int methaneLevelCritical = 0; [L827] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L121] int retValue_acc ; [L122] int tmp ; [L126] FCALL select_helpers() [L127] FCALL select_features() [L128] CALL, EXPR valid_product() [L170] int retValue_acc ; [L173] retValue_acc = 1 [L174] return (retValue_acc); [L128] RET, EXPR valid_product() [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L132] FCALL setup() [L133] CALL runTest() [L112] CALL test() [L445] int splverifierCounter ; [L446] int tmp ; [L447] int tmp___0 ; [L448] int tmp___1 ; [L449] int tmp___2 ; [L452] splverifierCounter = 0 [L454] COND TRUE 1 [L456] COND TRUE splverifierCounter < 4 [L462] tmp = __VERIFIER_nondet_int() [L464] COND TRUE \read(tmp) [L466] CALL waterRise() [L530] COND TRUE waterLevel < 2 [L531] waterLevel = waterLevel + 1 [L466] RET waterRise() [L472] tmp___0 = __VERIFIER_nondet_int() [L474] COND FALSE !(\read(tmp___0)) [L482] tmp___2 = __VERIFIER_nondet_int() [L484] COND FALSE !(\read(tmp___2)) [L488] tmp___1 = __VERIFIER_nondet_int() [L490] COND TRUE \read(tmp___1) [L492] CALL stopSystem() [L432] COND FALSE !(\read(pumpRunning)) [L439] systemActive = 0 [L492] RET stopSystem() [L499] CALL timeShift() [L196] COND FALSE !(\read(pumpRunning)) [L203] COND FALSE !(\read(systemActive)) [L211] CALL __utac_acc__Specification3_spec__1() [L625] int tmp ; [L626] int tmp___0 ; [L627] int tmp___1 ; [L631] CALL, EXPR isMethaneLevelCritical() [L551] int retValue_acc ; [L554] retValue_acc = methaneLevelCritical [L555] return (retValue_acc); [L631] RET, EXPR isMethaneLevelCritical() [L631] tmp = isMethaneLevelCritical() [L633] COND FALSE !(\read(tmp)) [L637] CALL, EXPR getWaterLevel() [L583] int retValue_acc ; [L586] retValue_acc = waterLevel [L587] return (retValue_acc); [L637] RET, EXPR getWaterLevel() [L637] tmp___0 = getWaterLevel() [L639] COND TRUE tmp___0 == 2 [L641] CALL, EXPR isPumpRunning() [L346] int retValue_acc ; [L349] retValue_acc = pumpRunning [L350] return (retValue_acc); [L641] RET, EXPR isPumpRunning() [L641] tmp___1 = isPumpRunning() [L643] COND FALSE !(\read(tmp___1)) [L647] CALL __automaton_fail() [L619] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 43 procedures, 261 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 20.0s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 9.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 618 SDtfs, 967 SDslu, 273 SDs, 0 SdLazy, 1557 SolverSat, 571 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 94 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=539occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 195 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 9.3s InterpolantComputationTime, 292 NumberOfCodeBlocks, 292 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 221 ConstructedInterpolants, 0 QuantifiedInterpolants, 60956 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...