/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_spec4_product45.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 12:47:29,947 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 12:47:29,949 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 12:47:29,975 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 12:47:29,976 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 12:47:29,977 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 12:47:29,978 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 12:47:29,980 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 12:47:29,981 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 12:47:29,982 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 12:47:29,983 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 12:47:29,984 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 12:47:29,984 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 12:47:29,985 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 12:47:29,986 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 12:47:29,987 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 12:47:29,990 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 12:47:29,991 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 12:47:29,993 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 12:47:29,995 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 12:47:29,996 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 12:47:29,997 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 12:47:29,998 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 12:47:29,999 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 12:47:30,001 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 12:47:30,002 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 12:47:30,002 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 12:47:30,003 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 12:47:30,003 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 12:47:30,004 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 12:47:30,004 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 12:47:30,005 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 12:47:30,006 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 12:47:30,006 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 12:47:30,007 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 12:47:30,007 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 12:47:30,008 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 12:47:30,008 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 12:47:30,009 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 12:47:30,009 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 12:47:30,010 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 12:47:30,011 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 12:47:30,033 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 12:47:30,034 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 12:47:30,035 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 12:47:30,035 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 12:47:30,035 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 12:47:30,035 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 12:47:30,036 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 12:47:30,036 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 12:47:30,036 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 12:47:30,036 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 12:47:30,036 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 12:47:30,037 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 12:47:30,037 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 12:47:30,037 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 12:47:30,037 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 12:47:30,037 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 12:47:30,037 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 12:47:30,038 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 12:47:30,038 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 12:47:30,038 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 12:47:30,038 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 12:47:30,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 12:47:30,039 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 12:47:30,039 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 12:47:30,039 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 12:47:30,039 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 12:47:30,039 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 12:47:30,040 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 12:47:30,040 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 12:47:30,040 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 12:47:30,375 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 12:47:30,387 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 12:47:30,390 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 12:47:30,392 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 12:47:30,392 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 12:47:30,393 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product45.cil.c [2020-10-13 12:47:30,469 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6f2d13971/706d25ff03f2403e819dc91f91685719/FLAG315dd850f [2020-10-13 12:47:31,018 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 12:47:31,019 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product45.cil.c [2020-10-13 12:47:31,032 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6f2d13971/706d25ff03f2403e819dc91f91685719/FLAG315dd850f [2020-10-13 12:47:31,265 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6f2d13971/706d25ff03f2403e819dc91f91685719 [2020-10-13 12:47:31,275 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 12:47:31,277 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 12:47:31,278 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 12:47:31,278 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 12:47:31,281 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 12:47:31,282 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:47:31" (1/1) ... [2020-10-13 12:47:31,285 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:47:31, skipping insertion in model container [2020-10-13 12:47:31,285 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:47:31" (1/1) ... [2020-10-13 12:47:31,293 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 12:47:31,357 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 12:47:31,886 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 12:47:31,897 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 12:47:31,966 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 12:47:32,005 INFO L208 MainTranslator]: Completed translation [2020-10-13 12:47:32,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:47:32 WrapperNode [2020-10-13 12:47:32,006 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 12:47:32,007 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 12:47:32,007 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 12:47:32,007 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 12:47:32,021 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:47:32" (1/1) ... [2020-10-13 12:47:32,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:47:32" (1/1) ... [2020-10-13 12:47:32,040 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:47:32" (1/1) ... [2020-10-13 12:47:32,040 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:47:32" (1/1) ... [2020-10-13 12:47:32,091 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:47:32" (1/1) ... [2020-10-13 12:47:32,100 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:47:32" (1/1) ... [2020-10-13 12:47:32,104 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:47:32" (1/1) ... [2020-10-13 12:47:32,111 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 12:47:32,112 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 12:47:32,112 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 12:47:32,112 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 12:47:32,113 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:47:32" (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 12:47:32,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 12:47:32,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 12:47:32,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-13 12:47:32,174 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-13 12:47:32,174 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-13 12:47:32,174 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-13 12:47:32,174 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-10-13 12:47:32,174 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-13 12:47:32,175 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-10-13 12:47:32,175 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-13 12:47:32,175 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-13 12:47:32,175 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-13 12:47:32,175 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-13 12:47:32,176 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-13 12:47:32,176 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-13 12:47:32,176 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-13 12:47:32,176 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-13 12:47:32,176 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-13 12:47:32,176 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-13 12:47:32,177 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-13 12:47:32,177 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-13 12:47:32,177 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-13 12:47:32,177 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-10-13 12:47:32,177 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-13 12:47:32,178 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-13 12:47:32,178 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-13 12:47:32,178 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-13 12:47:32,178 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 12:47:32,178 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-13 12:47:32,178 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-13 12:47:32,179 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-13 12:47:32,179 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-13 12:47:32,179 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-13 12:47:32,179 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-13 12:47:32,179 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-13 12:47:32,180 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-13 12:47:32,180 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-13 12:47:32,180 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-13 12:47:32,180 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-13 12:47:32,180 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 12:47:32,180 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 12:47:32,181 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-13 12:47:32,181 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-13 12:47:32,181 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-13 12:47:32,181 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-13 12:47:32,181 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-13 12:47:32,181 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-13 12:47:32,182 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-13 12:47:32,182 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-13 12:47:32,182 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-13 12:47:32,182 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-13 12:47:32,182 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-13 12:47:32,182 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-13 12:47:32,183 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-13 12:47:32,183 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-13 12:47:32,183 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-10-13 12:47:32,183 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-13 12:47:32,183 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-13 12:47:32,184 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-13 12:47:32,184 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-10-13 12:47:32,184 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-13 12:47:32,184 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-10-13 12:47:32,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 12:47:32,184 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-13 12:47:32,184 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-13 12:47:32,185 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 12:47:32,185 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-13 12:47:32,185 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-13 12:47:32,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 12:47:32,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 12:47:32,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 12:47:32,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 12:47:32,186 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-13 12:47:32,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 12:47:32,186 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-13 12:47:32,186 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-13 12:47:32,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 12:47:32,186 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-13 12:47:32,187 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-13 12:47:32,187 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-13 12:47:32,187 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-13 12:47:32,187 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-13 12:47:32,187 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-13 12:47:32,187 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-13 12:47:32,188 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-13 12:47:32,188 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-13 12:47:32,188 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-13 12:47:32,188 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 12:47:32,188 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-13 12:47:32,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 12:47:32,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-13 12:47:32,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 12:47:33,122 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 12:47:33,122 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-13 12:47:33,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:47:33 BoogieIcfgContainer [2020-10-13 12:47:33,127 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 12:47:33,128 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 12:47:33,129 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 12:47:33,131 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 12:47:33,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:47:31" (1/3) ... [2020-10-13 12:47:33,132 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ea1b7ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:47:33, skipping insertion in model container [2020-10-13 12:47:33,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:47:32" (2/3) ... [2020-10-13 12:47:33,133 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ea1b7ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:47:33, skipping insertion in model container [2020-10-13 12:47:33,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:47:33" (3/3) ... [2020-10-13 12:47:33,135 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product45.cil.c [2020-10-13 12:47:33,144 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 12:47:33,152 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 12:47:33,165 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 12:47:33,189 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 12:47:33,189 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 12:47:33,189 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 12:47:33,189 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 12:47:33,190 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 12:47:33,190 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 12:47:33,190 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 12:47:33,190 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 12:47:33,211 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states. [2020-10-13 12:47:33,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-13 12:47:33,221 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:47:33,222 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] [2020-10-13 12:47:33,222 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:47:33,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:47:33,228 INFO L82 PathProgramCache]: Analyzing trace with hash 261309835, now seen corresponding path program 1 times [2020-10-13 12:47:33,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:47:33,237 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [343600454] [2020-10-13 12:47:33,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:47:33,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:33,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:33,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:33,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:34,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:36,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:37,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:37,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-13 12:47:37,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 12:47:37,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4184 [2020-10-13 12:47:37,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:37,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:37,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-13 12:47:37,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:37,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-13 12:47:38,208 WARN L193 SmtUtils]: Spent 421.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:47:38,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:47:38,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:38,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:38,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:38,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:38,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:38,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-13 12:47:38,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:38,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:38,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:38,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:38,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:38,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:47:38,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:38,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:38,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:38,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:38,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:38,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:38,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:38,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:38,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:38,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:38,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:38,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:47:38,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:38,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:38,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:38,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:38,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:38,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:38,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:38,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:38,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:38,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:38,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:38,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:47:38,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:38,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:38,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:38,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:38,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:38,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:47:38,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:38,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:38,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:38,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:38,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:38,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:47:38,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:38,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:38,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:38,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:38,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:38,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:47:38,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:38,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:38,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:38,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:38,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:38,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-13 12:47:38,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:38,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:38,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:38,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:38,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:38,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:47:38,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:38,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:38,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:47:38,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:38,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:38,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 12:47:38,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:38,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:38,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:38,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:38,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:38,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:38,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:38,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:38,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:47:38,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:38,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:38,364 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 12:47:38,365 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [343600454] [2020-10-13 12:47:38,367 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:47:38,367 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 12:47:38,368 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644025814] [2020-10-13 12:47:38,375 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 12:47:38,376 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:47:38,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 12:47:38,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 12:47:38,394 INFO L87 Difference]: Start difference. First operand 176 states. Second operand 3 states. [2020-10-13 12:47:39,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:47:39,695 INFO L93 Difference]: Finished difference Result 309 states and 402 transitions. [2020-10-13 12:47:39,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 12:47:39,697 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-10-13 12:47:39,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:47:39,711 INFO L225 Difference]: With dead ends: 309 [2020-10-13 12:47:39,711 INFO L226 Difference]: Without dead ends: 167 [2020-10-13 12:47:39,716 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 12:47:39,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2020-10-13 12:47:39,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 133. [2020-10-13 12:47:39,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-10-13 12:47:39,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 156 transitions. [2020-10-13 12:47:39,842 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 156 transitions. Word has length 46 [2020-10-13 12:47:39,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:47:39,844 INFO L479 AbstractCegarLoop]: Abstraction has 133 states and 156 transitions. [2020-10-13 12:47:39,844 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 12:47:39,844 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 156 transitions. [2020-10-13 12:47:39,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-13 12:47:39,851 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:47:39,854 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] [2020-10-13 12:47:39,855 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 12:47:39,855 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:47:39,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:47:39,856 INFO L82 PathProgramCache]: Analyzing trace with hash -1021856254, now seen corresponding path program 1 times [2020-10-13 12:47:39,856 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:47:39,856 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [258087160] [2020-10-13 12:47:39,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:47:39,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:39,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:39,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:40,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:41,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:42,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:44,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:44,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 12:47:44,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 12:47:44,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-13 12:47:44,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:44,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:47:44,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-13 12:47:44,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 12:47:44,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:45,161 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:47:45,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:47:45,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:45,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:45,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:45,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:45,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:45,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 12:47:45,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:45,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:45,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:45,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:45,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:45,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:47:45,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:45,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:45,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:45,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:45,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:45,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:45,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:45,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:45,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:45,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:45,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:45,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:47:45,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:45,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:45,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:45,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:45,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:45,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:45,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:45,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:45,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:45,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:45,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:45,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:47:45,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:45,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:45,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:45,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:45,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:45,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:45,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:45,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:45,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:45,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:45,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:45,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:47:45,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:45,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:45,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:45,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:45,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:45,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:45,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:45,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:45,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:45,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:45,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:45,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 12:47:45,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:45,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:45,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:45,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:45,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:45,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:45,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:45,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:45,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:47:45,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:45,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:45,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 12:47:45,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:45,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:45,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:45,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:45,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:45,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:47:45,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:45,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:45,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:47:45,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:45,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:45,247 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 12:47:45,248 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [258087160] [2020-10-13 12:47:45,249 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:47:45,249 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 12:47:45,249 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116221404] [2020-10-13 12:47:45,251 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 12:47:45,252 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:47:45,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 12:47:45,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 12:47:45,256 INFO L87 Difference]: Start difference. First operand 133 states and 156 transitions. Second operand 4 states. [2020-10-13 12:47:45,693 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:47:46,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:47:46,417 INFO L93 Difference]: Finished difference Result 242 states and 293 transitions. [2020-10-13 12:47:46,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 12:47:46,418 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-10-13 12:47:46,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:47:46,420 INFO L225 Difference]: With dead ends: 242 [2020-10-13 12:47:46,420 INFO L226 Difference]: Without dead ends: 151 [2020-10-13 12:47:46,422 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 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 12:47:46,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2020-10-13 12:47:46,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 124. [2020-10-13 12:47:46,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-10-13 12:47:46,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 144 transitions. [2020-10-13 12:47:46,463 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 144 transitions. Word has length 47 [2020-10-13 12:47:46,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:47:46,464 INFO L479 AbstractCegarLoop]: Abstraction has 124 states and 144 transitions. [2020-10-13 12:47:46,464 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 12:47:46,464 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 144 transitions. [2020-10-13 12:47:46,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-13 12:47:46,466 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:47:46,466 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] [2020-10-13 12:47:46,466 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 12:47:46,466 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:47:46,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:47:46,467 INFO L82 PathProgramCache]: Analyzing trace with hash 1136847733, now seen corresponding path program 1 times [2020-10-13 12:47:46,467 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:47:46,467 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2086582965] [2020-10-13 12:47:46,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:47:46,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:46,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:46,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:47,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:47,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:48,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:48,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-13 12:47:48,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 12:47:48,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2169 [2020-10-13 12:47:48,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:48,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 12:47:48,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-13 12:47:48,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-13 12:47:48,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:48,935 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:47:48,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:47:48,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:48,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:48,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:48,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:48,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:48,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-13 12:47:48,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:48,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:48,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:48,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:48,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:49,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:47:49,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:49,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:49,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:49,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:49,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:49,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:47:49,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:49,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:49,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:49,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:49,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:49,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:47:49,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:49,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:49,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:49,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:49,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:49,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:49,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:49,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:49,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:49,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:49,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:49,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:47:49,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:49,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:49,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:49,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:49,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:49,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:49,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:49,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:49,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:49,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:49,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:49,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:47:49,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:49,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:49,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:49,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:49,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:49,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:49,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:49,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:49,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:49,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:49,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:49,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-13 12:47:49,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:49,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:49,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:49,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:49,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:49,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:47:49,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:49,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:47:49,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:49,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:47:49,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:49,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-13 12:47:49,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:49,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:49,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:49,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:49,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:49,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 12:47:49,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:49,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:47:49,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:49,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:47:49,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 12:47:49,078 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 12:47:49,078 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2086582965] [2020-10-13 12:47:49,079 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:47:49,079 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 12:47:49,079 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941928838] [2020-10-13 12:47:49,080 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 12:47:49,081 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:47:49,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 12:47:49,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-13 12:47:49,082 INFO L87 Difference]: Start difference. First operand 124 states and 144 transitions. Second operand 7 states. [2020-10-13 12:47:49,394 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:47:50,123 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:47:50,418 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:47:50,650 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:47:51,257 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:47:51,513 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:47:52,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:47:52,073 INFO L93 Difference]: Finished difference Result 319 states and 399 transitions. [2020-10-13 12:47:52,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 12:47:52,076 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2020-10-13 12:47:52,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:47:52,079 INFO L225 Difference]: With dead ends: 319 [2020-10-13 12:47:52,079 INFO L226 Difference]: Without dead ends: 219 [2020-10-13 12:47:52,080 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-10-13 12:47:52,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2020-10-13 12:47:52,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 199. [2020-10-13 12:47:52,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2020-10-13 12:47:52,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 237 transitions. [2020-10-13 12:47:52,153 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 237 transitions. Word has length 51 [2020-10-13 12:47:52,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:47:52,154 INFO L479 AbstractCegarLoop]: Abstraction has 199 states and 237 transitions. [2020-10-13 12:47:52,154 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 12:47:52,154 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 237 transitions. [2020-10-13 12:47:52,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-13 12:47:52,156 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:47:52,156 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:47:52,156 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 12:47:52,156 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:47:52,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:47:52,157 INFO L82 PathProgramCache]: Analyzing trace with hash 536117831, now seen corresponding path program 1 times [2020-10-13 12:47:52,157 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:47:52,157 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [42715479] [2020-10-13 12:47:52,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:47:52,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:52,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:52,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:53,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:53,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-13 12:47:53,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 12:47:53,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1731 [2020-10-13 12:47:53,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:53,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 12:47:53,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-13 12:47:53,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 12:47:53,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:54,170 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:47:54,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:47:54,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:54,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:54,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:54,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:54,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:54,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 12:47:54,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:54,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:54,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:54,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:54,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:54,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:47:54,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:54,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:54,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:54,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:54,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:54,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:54,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:54,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:54,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:54,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:54,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:54,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:47:54,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:54,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:54,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:54,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:54,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:54,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:54,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:54,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:54,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:54,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:54,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:54,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:47:54,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:54,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:54,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:54,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:54,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:54,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:54,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:54,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:54,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:54,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:54,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:54,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:47:54,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:54,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:54,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:54,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:54,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:54,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:54,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:54,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:54,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:54,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:54,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:54,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 12:47:54,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:54,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:54,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:54,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-13 12:47:54,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:54,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 12:47:54,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:54,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 12:47:54,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 12:47:54,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 12:47:54,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:54,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:47:54,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:54,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:54,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:54,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-13 12:47:54,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:54,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 12:47:54,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:54,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 12:47:54,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-13 12:47:54,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 12:47:54,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:54,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:47:54,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:54,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:54,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:54,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 12:47:54,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:54,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 12:47:54,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:54,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:47:54,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:54,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 12:47:54,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:54,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:47:54,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:54,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:54,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:54,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:47:54,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:54,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:54,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:54,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:54,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:54,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:54,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:54,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 12:47:54,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:54,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:54,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:54,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-13 12:47:54,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:54,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 12:47:54,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:54,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:54,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-13 12:47:54,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:54,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:54,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:47:54,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:54,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:54,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:54,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 12:47:54,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:54,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:54,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:54,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:54,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:54,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:54,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:54,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:47:54,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:54,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:54,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:54,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:54,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:54,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:47:54,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:54,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:54,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:54,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:54,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:54,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:47:54,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:54,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:54,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:54,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:54,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:54,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:54,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:54,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:54,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:54,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:54,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:54,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 12:47:54,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:54,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:54,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:54,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:54,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:54,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:54,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:54,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:54,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:47:54,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:54,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:54,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-13 12:47:54,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:54,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:54,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:54,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:54,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:54,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:47:54,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:54,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:54,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:47:54,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:54,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:54,415 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 12:47:54,415 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [42715479] [2020-10-13 12:47:54,416 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:47:54,416 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 12:47:54,416 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635199285] [2020-10-13 12:47:54,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 12:47:54,417 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:47:54,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 12:47:54,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-13 12:47:54,418 INFO L87 Difference]: Start difference. First operand 199 states and 237 transitions. Second operand 8 states. [2020-10-13 12:47:55,283 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:47:55,517 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-13 12:47:55,743 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:47:55,955 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:47:56,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:47:56,647 INFO L93 Difference]: Finished difference Result 415 states and 532 transitions. [2020-10-13 12:47:56,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 12:47:56,649 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 94 [2020-10-13 12:47:56,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:47:56,652 INFO L225 Difference]: With dead ends: 415 [2020-10-13 12:47:56,652 INFO L226 Difference]: Without dead ends: 240 [2020-10-13 12:47:56,654 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2020-10-13 12:47:56,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2020-10-13 12:47:56,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 204. [2020-10-13 12:47:56,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2020-10-13 12:47:56,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 242 transitions. [2020-10-13 12:47:56,692 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 242 transitions. Word has length 94 [2020-10-13 12:47:56,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:47:56,692 INFO L479 AbstractCegarLoop]: Abstraction has 204 states and 242 transitions. [2020-10-13 12:47:56,693 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 12:47:56,693 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 242 transitions. [2020-10-13 12:47:56,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-13 12:47:56,694 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:47:56,694 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:47:56,695 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 12:47:56,695 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:47:56,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:47:56,695 INFO L82 PathProgramCache]: Analyzing trace with hash 1429604169, now seen corresponding path program 1 times [2020-10-13 12:47:56,695 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:47:56,695 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1139110611] [2020-10-13 12:47:56,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:47:56,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:56,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:56,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:58,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:58,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-13 12:47:58,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 12:47:58,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1593 [2020-10-13 12:47:58,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:58,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:47:58,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-13 12:47:58,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:47:58,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:58,612 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:47:58,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:47:58,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:58,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:58,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:58,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:58,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:58,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 12:47:58,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:58,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:58,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:58,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:58,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:58,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:47:58,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:58,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:58,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:58,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:58,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:58,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:58,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:58,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:58,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:58,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:58,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:58,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:47:58,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:58,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:58,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:58,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:58,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:58,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:58,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:58,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:58,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:58,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:58,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:58,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:47:58,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:58,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:58,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:58,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:58,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:58,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:58,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:58,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:58,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:58,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:58,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:58,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:47:58,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:58,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:58,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:58,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:58,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:58,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:58,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:58,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:58,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:58,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:58,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:58,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 12:47:58,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:58,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:58,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:58,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-13 12:47:58,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:58,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 12:47:58,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:58,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:47:58,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-13 12:47:58,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:47:58,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:58,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:47:58,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:58,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:58,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:58,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-13 12:47:58,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:58,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 12:47:58,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:58,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:47:58,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 12:47:58,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:47:58,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:58,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:47:58,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:58,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:58,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:58,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 12:47:58,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:58,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 12:47:58,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:58,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:47:58,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 12:47:58,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:47:58,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:58,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:47:58,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:58,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:58,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:58,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:47:58,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:58,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:47:58,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:58,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 12:47:58,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:58,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:47:58,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:58,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 12:47:58,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:58,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:58,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:58,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-13 12:47:58,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:58,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 12:47:58,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:58,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:58,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-13 12:47:58,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:58,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:58,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:47:58,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:58,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:58,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:58,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 12:47:58,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:58,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:58,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:58,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:58,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:58,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:58,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:58,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:47:58,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:58,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:58,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:58,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:58,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:58,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:58,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:58,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:58,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:58,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:58,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:58,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:47:58,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:58,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:58,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:58,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:58,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:58,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:58,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:58,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:58,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:58,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:58,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:58,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 12:47:58,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:58,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:58,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:58,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:58,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:58,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:58,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:58,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:58,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:47:58,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:58,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:58,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-13 12:47:58,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:58,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:58,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:58,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:58,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:58,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:58,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:58,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:58,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:47:58,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:58,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:58,832 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 12:47:58,832 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1139110611] [2020-10-13 12:47:58,832 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:47:58,832 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 12:47:58,833 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165372333] [2020-10-13 12:47:58,833 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 12:47:58,833 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:47:58,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 12:47:58,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 12:47:58,834 INFO L87 Difference]: Start difference. First operand 204 states and 242 transitions. Second operand 7 states. [2020-10-13 12:47:59,600 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:47:59,858 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:48:00,081 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:48:00,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:48:00,748 INFO L93 Difference]: Finished difference Result 425 states and 542 transitions. [2020-10-13 12:48:00,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 12:48:00,748 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 94 [2020-10-13 12:48:00,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:48:00,755 INFO L225 Difference]: With dead ends: 425 [2020-10-13 12:48:00,755 INFO L226 Difference]: Without dead ends: 245 [2020-10-13 12:48:00,756 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-10-13 12:48:00,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2020-10-13 12:48:00,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 208. [2020-10-13 12:48:00,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2020-10-13 12:48:00,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 246 transitions. [2020-10-13 12:48:00,795 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 246 transitions. Word has length 94 [2020-10-13 12:48:00,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:48:00,796 INFO L479 AbstractCegarLoop]: Abstraction has 208 states and 246 transitions. [2020-10-13 12:48:00,796 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 12:48:00,796 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 246 transitions. [2020-10-13 12:48:00,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-13 12:48:00,797 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:48:00,797 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:48:00,798 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 12:48:00,798 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:48:00,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:48:00,798 INFO L82 PathProgramCache]: Analyzing trace with hash 1421844810, now seen corresponding path program 1 times [2020-10-13 12:48:00,798 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:48:00,799 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2021909801] [2020-10-13 12:48:00,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:48:00,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:00,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:01,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:02,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:02,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:02,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-13 12:48:02,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 12:48:02,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1428 [2020-10-13 12:48:02,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:02,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 12:48:02,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-13 12:48:02,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 12:48:02,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:48:02,496 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:48:02,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:48:02,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:02,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:02,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:02,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:48:02,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:02,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 12:48:02,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:02,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:48:02,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:02,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:48:02,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:48:02,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:48:02,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:02,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:02,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:02,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:48:02,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:02,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:48:02,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:02,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:48:02,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:02,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:48:02,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:48:02,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:48:02,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:02,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:02,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:02,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:48:02,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:02,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:48:02,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:02,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:48:02,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:02,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:48:02,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:48:02,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:48:02,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:02,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:02,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:02,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:48:02,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:02,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:48:02,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:02,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:48:02,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:02,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:48:02,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:48:02,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:48:02,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:02,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:02,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:02,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:48:02,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:02,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:48:02,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:02,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:48:02,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:02,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:48:02,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:48:02,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 12:48:02,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:02,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:02,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:02,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-13 12:48:02,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:02,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 12:48:02,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:02,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:48:02,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:02,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:48:02,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:48:02,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:48:02,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:02,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:02,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:02,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-13 12:48:02,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:02,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 12:48:02,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:02,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:48:02,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:02,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 12:48:02,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:48:02,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:48:02,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:02,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:02,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:02,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 12:48:02,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:02,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:48:02,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:02,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:48:02,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:02,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 12:48:02,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:48:02,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:48:02,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:02,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:02,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:02,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:48:02,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:02,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:48:02,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:02,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:48:02,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:02,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 12:48:02,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:48:02,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 12:48:02,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:02,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:02,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:02,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-13 12:48:02,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:02,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 12:48:02,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:02,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:48:02,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:02,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:48:02,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:48:02,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:48:02,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:02,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:02,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:02,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 12:48:02,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:02,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:48:02,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:02,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:48:02,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:02,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:48:02,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:48:02,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:48:02,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:02,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:02,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:02,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:48:02,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:02,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:48:02,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:02,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:48:02,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:02,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:48:02,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:48:02,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:48:02,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:02,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:02,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:02,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:48:02,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:02,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:48:02,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:02,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:48:02,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:02,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:48:02,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:48:02,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 12:48:02,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:02,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:02,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:02,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:48:02,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:02,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:48:02,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:02,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:48:02,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:02,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:48:02,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:48:02,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-13 12:48:02,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:02,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:02,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:02,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:48:02,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:02,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:48:02,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:02,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:48:02,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:48:02,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:48:02,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:48:02,692 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 12:48:02,693 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2021909801] [2020-10-13 12:48:02,693 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:48:02,693 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 12:48:02,693 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119362099] [2020-10-13 12:48:02,694 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 12:48:02,694 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:48:02,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 12:48:02,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-13 12:48:02,695 INFO L87 Difference]: Start difference. First operand 208 states and 246 transitions. Second operand 8 states. [2020-10-13 12:48:03,217 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:48:03,777 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-13 12:48:04,273 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-10-13 12:48:04,497 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:48:04,758 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-13 12:48:05,009 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-13 12:48:06,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:48:06,376 INFO L93 Difference]: Finished difference Result 538 states and 726 transitions. [2020-10-13 12:48:06,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 12:48:06,377 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 94 [2020-10-13 12:48:06,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:48:06,384 INFO L225 Difference]: With dead ends: 538 [2020-10-13 12:48:06,384 INFO L226 Difference]: Without dead ends: 354 [2020-10-13 12:48:06,385 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 31 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-13 12:48:06,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2020-10-13 12:48:06,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 299. [2020-10-13 12:48:06,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-10-13 12:48:06,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 371 transitions. [2020-10-13 12:48:06,447 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 371 transitions. Word has length 94 [2020-10-13 12:48:06,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:48:06,447 INFO L479 AbstractCegarLoop]: Abstraction has 299 states and 371 transitions. [2020-10-13 12:48:06,448 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 12:48:06,448 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 371 transitions. [2020-10-13 12:48:06,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-13 12:48:06,450 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:48:06,450 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:48:06,450 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 12:48:06,450 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:48:06,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:48:06,451 INFO L82 PathProgramCache]: Analyzing trace with hash -148034847, now seen corresponding path program 1 times [2020-10-13 12:48:06,451 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:48:06,451 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1769105021] [2020-10-13 12:48:06,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:48:06,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:06,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:06,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:07,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:07,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:07,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:07,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:11,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:11,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-13 12:48:11,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 12:48:11,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-13 12:48:11,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:11,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:48:11,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:48:11,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 12:48:11,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:48:11,760 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:48:11,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:48:11,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:11,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:11,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:11,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:48:11,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:11,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-13 12:48:11,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:11,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:48:11,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:11,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 12:48:11,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:48:11,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:48:11,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:11,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:11,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:11,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:48:11,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:11,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:48:11,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:11,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:48:11,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:11,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:48:11,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:48:11,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:48:11,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:11,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:11,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:11,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:48:11,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:11,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:48:11,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:11,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:48:11,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:11,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:48:11,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:48:11,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:48:11,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:11,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:11,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:11,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:48:11,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:11,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:48:11,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:11,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:48:11,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:11,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:48:11,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:48:11,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:48:11,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:11,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:11,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:11,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:48:11,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:11,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:48:11,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:11,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:48:11,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:11,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:48:11,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:48:11,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-13 12:48:11,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:11,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:11,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:11,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:48:11,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:11,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:48:11,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:11,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:48:11,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 12:48:11,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:48:11,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:48:11,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-13 12:48:11,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:11,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:11,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:11,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 12:48:11,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:11,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 12:48:11,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:11,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:48:11,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-13 12:48:11,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:48:11,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:48:11,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:48:11,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:11,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:11,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:11,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-13 12:48:11,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:11,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:48:11,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:11,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:48:11,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:11,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:48:11,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:48:12,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:48:12,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:12,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:12,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:12,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-13 12:48:12,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:12,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 12:48:12,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:12,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:48:12,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:12,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:48:12,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:48:12,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:48:12,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:12,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:12,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:12,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 12:48:12,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:12,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:48:12,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:12,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:48:12,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:12,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:48:12,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:48:12,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:48:12,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:12,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:12,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:12,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:48:12,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:12,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:48:12,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:12,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:48:12,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:12,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:48:12,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:48:12,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 12:48:12,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:12,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:12,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:12,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-13 12:48:12,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:12,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:48:12,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:12,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:48:12,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:12,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:48:12,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:48:12,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:48:12,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:12,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:12,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:12,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 12:48:12,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:12,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:48:12,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:12,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:48:12,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:12,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:48:12,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:48:12,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:48:12,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:12,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:12,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:12,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:48:12,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:12,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:48:12,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:12,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:48:12,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:12,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:48:12,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:48:12,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:48:12,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:12,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:12,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:12,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:48:12,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:12,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:48:12,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:12,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:48:12,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:12,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:48:12,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:48:12,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-13 12:48:12,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:12,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:12,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:12,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 12:48:12,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:12,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:48:12,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:12,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:48:12,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:12,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:48:12,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:48:12,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:48:12,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:12,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:12,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:12,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:48:12,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:12,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:48:12,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:12,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:48:12,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:12,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:48:12,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:48:12,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-13 12:48:12,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:12,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:12,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:12,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:48:12,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:12,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:48:12,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:12,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:48:12,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:48:12,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:48:12,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:48:12,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-13 12:48:12,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:12,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:12,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:12,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:48:12,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:12,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:48:12,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:12,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:48:12,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:48:12,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:48:12,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:48:12,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-13 12:48:12,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:12,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:12,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:12,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:48:12,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:12,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:48:12,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:12,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:48:12,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:48:12,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:48:12,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:48:12,154 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-13 12:48:12,155 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1769105021] [2020-10-13 12:48:12,161 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:48:12,161 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 12:48:12,162 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214385985] [2020-10-13 12:48:12,163 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 12:48:12,163 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:48:12,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 12:48:12,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-13 12:48:12,164 INFO L87 Difference]: Start difference. First operand 299 states and 371 transitions. Second operand 8 states. [2020-10-13 12:48:12,522 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:48:13,308 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:48:14,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:48:14,441 INFO L93 Difference]: Finished difference Result 703 states and 901 transitions. [2020-10-13 12:48:14,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 12:48:14,441 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 125 [2020-10-13 12:48:14,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:48:14,445 INFO L225 Difference]: With dead ends: 703 [2020-10-13 12:48:14,446 INFO L226 Difference]: Without dead ends: 428 [2020-10-13 12:48:14,447 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-10-13 12:48:14,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2020-10-13 12:48:14,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 389. [2020-10-13 12:48:14,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 389 states. [2020-10-13 12:48:14,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 472 transitions. [2020-10-13 12:48:14,515 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 472 transitions. Word has length 125 [2020-10-13 12:48:14,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:48:14,515 INFO L479 AbstractCegarLoop]: Abstraction has 389 states and 472 transitions. [2020-10-13 12:48:14,515 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 12:48:14,515 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 472 transitions. [2020-10-13 12:48:14,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-13 12:48:14,517 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:48:14,517 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:48:14,518 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 12:48:14,518 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:48:14,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:48:14,518 INFO L82 PathProgramCache]: Analyzing trace with hash 908696355, now seen corresponding path program 1 times [2020-10-13 12:48:14,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:48:14,519 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [101581399] [2020-10-13 12:48:14,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:48:14,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:14,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:14,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:14,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:14,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:16,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:16,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-13 12:48:16,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 12:48:16,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1564 [2020-10-13 12:48:16,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:16,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:48:16,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-13 12:48:16,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-13 12:48:16,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:48:16,431 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:48:16,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:48:16,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:16,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:16,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:16,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:48:16,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:16,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 12:48:16,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:16,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:48:16,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:16,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:48:16,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:48:16,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:48:16,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:16,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:16,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:16,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:48:16,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:16,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:48:16,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:16,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:48:16,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:16,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:48:16,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:48:16,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:48:16,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:16,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:16,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:16,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:48:16,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:16,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:48:16,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:16,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:48:16,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:16,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:48:16,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:48:16,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:48:16,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:16,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:16,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:16,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:48:16,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:16,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:48:16,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:16,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:48:16,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:16,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:48:16,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:48:16,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:48:16,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:16,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:16,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:16,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:48:16,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:16,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:48:16,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:16,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:48:16,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:16,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:48:16,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:48:16,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-13 12:48:16,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:16,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:16,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:16,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:48:16,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:16,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:48:16,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:16,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:48:16,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:16,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:48:16,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:48:16,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-13 12:48:16,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:16,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:16,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:16,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 12:48:16,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:16,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 12:48:16,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:16,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:48:16,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:16,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-13 12:48:16,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:48:16,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:48:16,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:16,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:16,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:16,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-13 12:48:16,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:16,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 12:48:16,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:16,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:48:16,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:16,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:48:16,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:48:16,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:48:16,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:16,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:16,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:16,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-13 12:48:16,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:16,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 12:48:16,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:16,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:48:16,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:16,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 12:48:16,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:48:16,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:48:16,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:16,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:16,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:16,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 12:48:16,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:16,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:48:16,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:16,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:48:16,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:16,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 12:48:16,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:48:16,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:48:16,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:16,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:16,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:16,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:48:16,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:16,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:48:16,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:16,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:48:16,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:16,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 12:48:16,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:48:16,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 12:48:16,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:16,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:16,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:16,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-13 12:48:16,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:16,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 12:48:16,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:16,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:48:16,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:16,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:48:16,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:48:16,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:48:16,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:16,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:16,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:16,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 12:48:16,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:16,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:48:16,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:16,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:48:16,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:16,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:48:16,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:48:16,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:48:16,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:16,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:16,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:16,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:48:16,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:16,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:48:16,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:16,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:48:16,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:16,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:48:16,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:48:16,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:48:16,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:16,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:16,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:16,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:48:16,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:16,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:48:16,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:16,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:48:16,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:16,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:48:16,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:48:16,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-13 12:48:16,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:16,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:16,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:16,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 12:48:16,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:16,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:48:16,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:16,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:48:16,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:16,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 12:48:16,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:48:16,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:48:16,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:16,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:16,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:16,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:48:16,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:16,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:48:16,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:16,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:48:16,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:16,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:48:16,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:48:16,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-13 12:48:16,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:16,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:16,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:16,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:48:16,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:16,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:48:16,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:16,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 12:48:16,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 12:48:16,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:48:16,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:48:16,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-13 12:48:16,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:16,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:16,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:16,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:48:16,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:16,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:48:16,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:16,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:48:16,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:16,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:48:16,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:48:16,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-13 12:48:16,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:16,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:16,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:16,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:48:16,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:16,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:48:16,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:16,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:48:16,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:48:16,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:48:16,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:48:16,817 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-13 12:48:16,818 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [101581399] [2020-10-13 12:48:16,818 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:48:16,819 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 12:48:16,819 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748357334] [2020-10-13 12:48:16,819 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 12:48:16,819 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:48:16,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 12:48:16,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-13 12:48:16,820 INFO L87 Difference]: Start difference. First operand 389 states and 472 transitions. Second operand 12 states. [2020-10-13 12:48:17,151 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:48:17,721 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:48:18,055 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:48:18,324 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-13 12:48:18,588 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-13 12:48:18,822 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:48:19,091 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-13 12:48:19,337 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-13 12:48:20,648 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:48:20,911 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:48:21,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:48:21,870 INFO L93 Difference]: Finished difference Result 1000 states and 1335 transitions. [2020-10-13 12:48:21,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-13 12:48:21,870 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 125 [2020-10-13 12:48:21,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:48:21,876 INFO L225 Difference]: With dead ends: 1000 [2020-10-13 12:48:21,876 INFO L226 Difference]: Without dead ends: 635 [2020-10-13 12:48:21,878 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 45 SyntacticMatches, 5 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=270, Invalid=660, Unknown=0, NotChecked=0, Total=930 [2020-10-13 12:48:21,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2020-10-13 12:48:21,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 550. [2020-10-13 12:48:21,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 550 states. [2020-10-13 12:48:21,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 694 transitions. [2020-10-13 12:48:21,971 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 694 transitions. Word has length 125 [2020-10-13 12:48:21,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:48:21,972 INFO L479 AbstractCegarLoop]: Abstraction has 550 states and 694 transitions. [2020-10-13 12:48:21,972 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 12:48:21,973 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 694 transitions. [2020-10-13 12:48:21,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-10-13 12:48:21,983 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:48:21,983 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:48:21,983 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 12:48:21,984 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:48:21,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:48:21,984 INFO L82 PathProgramCache]: Analyzing trace with hash -1831002620, now seen corresponding path program 2 times [2020-10-13 12:48:21,984 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:48:21,984 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1727218914] [2020-10-13 12:48:21,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:48:22,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:22,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:22,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:22,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:22,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:22,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:22,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 214 [2020-10-13 12:48:22,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 12:48:22,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 363 [2020-10-13 12:48:22,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:22,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:48:22,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-13 12:48:22,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-13 12:48:22,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:48:22,586 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:48:22,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:48:22,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:22,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:22,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:22,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:48:22,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:22,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 12:48:22,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:22,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:48:22,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:22,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:48:22,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:48:22,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:48:22,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:22,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:22,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:22,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:48:22,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:22,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:48:22,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:22,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:48:22,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:22,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:48:22,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:48:22,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:48:22,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:22,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:22,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:22,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:48:22,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:22,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:48:22,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:22,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:48:22,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:22,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:48:22,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:48:22,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:48:22,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:22,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:22,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:22,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:48:22,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:22,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:48:22,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:22,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:48:22,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:22,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:48:22,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:48:22,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:48:22,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:22,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:22,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:22,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:48:22,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:22,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:48:22,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:22,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:48:22,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:22,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:48:22,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:48:22,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-13 12:48:22,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:22,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:22,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:22,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:48:22,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:22,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:48:22,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:22,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:48:22,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:22,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:48:22,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:48:22,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-13 12:48:22,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:22,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:22,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:22,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 12:48:22,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:22,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 12:48:22,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:22,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:48:22,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:22,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 12:48:22,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:48:22,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:48:22,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:22,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:22,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:22,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-13 12:48:22,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:22,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 12:48:22,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:22,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:48:22,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:22,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-13 12:48:22,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:48:22,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:48:22,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:22,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:22,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:22,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-13 12:48:22,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:22,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 12:48:22,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:22,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:48:22,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:22,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:48:22,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:48:22,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:48:22,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:22,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:22,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:22,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 12:48:22,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:22,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:48:22,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:22,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:48:22,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:22,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:48:22,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:48:22,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:48:22,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:22,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:22,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:22,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:48:22,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:22,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:48:22,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:22,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:48:22,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:22,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:48:22,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:48:22,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 12:48:22,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:22,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:22,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:22,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-13 12:48:22,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:22,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:48:22,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:22,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:48:22,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:22,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:48:22,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:48:22,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:48:22,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:22,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:22,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:22,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 12:48:22,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:22,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:48:22,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:22,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:48:22,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:22,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:48:22,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:48:22,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:48:22,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:22,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:22,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:22,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:48:22,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:22,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:48:22,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:22,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:48:22,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:22,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:48:22,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:48:22,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:48:22,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:22,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:22,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:22,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:48:22,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:22,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:48:22,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:22,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:48:22,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:22,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:48:22,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:48:22,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-13 12:48:22,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:22,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:22,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:22,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 12:48:22,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:22,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:48:22,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:22,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:48:22,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:22,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 12:48:22,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:48:22,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:48:22,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:22,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:22,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:22,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:48:22,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:22,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:48:22,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:22,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:48:22,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:22,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:48:22,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:48:22,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 12:48:22,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:22,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:22,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:22,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-13 12:48:22,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:22,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:48:22,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:22,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:48:22,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-13 12:48:22,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 12:48:22,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:48:22,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:48:22,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:22,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:22,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:22,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:48:22,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:22,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:48:22,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:22,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:48:22,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:22,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:48:22,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:48:22,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:48:22,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:22,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:22,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:22,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 12:48:22,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:22,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:48:22,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:22,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:48:22,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:22,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 12:48:22,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:48:22,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:48:22,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:22,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:22,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:22,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:48:22,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:22,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:48:22,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:22,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:48:22,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:48:22,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:48:22,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:48:22,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-13 12:48:22,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:22,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:22,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:22,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:48:22,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:22,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:48:22,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:22,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:48:22,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:48:22,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:48:22,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:48:22,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-13 12:48:22,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:22,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:22,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:22,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:48:22,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:22,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:48:22,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:22,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:48:22,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:48:22,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:48:22,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:48:22,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-13 12:48:22,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:48:22,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:48:22,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:48:22,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:48:22,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:48:22,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:48:22,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:48:22,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:48:22,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:48:22,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:48:22,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:48:22,923 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 42 proven. 3 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-10-13 12:48:22,923 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1727218914] [2020-10-13 12:48:22,923 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:48:22,924 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 12:48:22,924 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543967936] [2020-10-13 12:48:22,924 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 12:48:22,925 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:48:22,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 12:48:22,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-13 12:48:22,925 INFO L87 Difference]: Start difference. First operand 550 states and 694 transitions. Second operand 8 states. [2020-10-13 12:48:23,208 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:48:24,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:48:24,401 INFO L93 Difference]: Finished difference Result 1094 states and 1420 transitions. [2020-10-13 12:48:24,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 12:48:24,402 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 152 [2020-10-13 12:48:24,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:48:24,406 INFO L225 Difference]: With dead ends: 1094 [2020-10-13 12:48:24,406 INFO L226 Difference]: Without dead ends: 568 [2020-10-13 12:48:24,408 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-10-13 12:48:24,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2020-10-13 12:48:24,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 508. [2020-10-13 12:48:24,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 508 states. [2020-10-13 12:48:24,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 623 transitions. [2020-10-13 12:48:24,506 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 623 transitions. Word has length 152 [2020-10-13 12:48:24,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:48:24,507 INFO L479 AbstractCegarLoop]: Abstraction has 508 states and 623 transitions. [2020-10-13 12:48:24,507 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 12:48:24,507 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 623 transitions. [2020-10-13 12:48:24,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-10-13 12:48:24,510 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:48:24,510 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:48:24,511 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 12:48:24,511 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:48:24,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:48:24,511 INFO L82 PathProgramCache]: Analyzing trace with hash -706947900, now seen corresponding path program 1 times [2020-10-13 12:48:24,511 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:48:24,512 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1832078297] [2020-10-13 12:48:24,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:48:24,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-13 12:48:24,554 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-13 12:48:24,554 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-13 12:48:24,559 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 12:48:24,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:48:24 BoogieIcfgContainer [2020-10-13 12:48:24,603 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 12:48:24,608 INFO L168 Benchmark]: Toolchain (without parser) took 53329.01 ms. Allocated memory was 141.0 MB in the beginning and 857.7 MB in the end (delta: 716.7 MB). Free memory was 103.2 MB in the beginning and 617.7 MB in the end (delta: -514.5 MB). Peak memory consumption was 202.2 MB. Max. memory is 7.1 GB. [2020-10-13 12:48:24,612 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 141.0 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-13 12:48:24,618 INFO L168 Benchmark]: CACSL2BoogieTranslator took 728.92 ms. Allocated memory was 141.0 MB in the beginning and 201.9 MB in the end (delta: 60.8 MB). Free memory was 102.8 MB in the beginning and 170.4 MB in the end (delta: -67.6 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. [2020-10-13 12:48:24,619 INFO L168 Benchmark]: Boogie Preprocessor took 104.50 ms. Allocated memory is still 201.9 MB. Free memory was 170.4 MB in the beginning and 166.4 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-10-13 12:48:24,620 INFO L168 Benchmark]: RCFGBuilder took 1015.69 ms. Allocated memory was 201.9 MB in the beginning and 235.9 MB in the end (delta: 34.1 MB). Free memory was 166.4 MB in the beginning and 195.4 MB in the end (delta: -28.9 MB). Peak memory consumption was 80.8 MB. Max. memory is 7.1 GB. [2020-10-13 12:48:24,621 INFO L168 Benchmark]: TraceAbstraction took 51475.13 ms. Allocated memory was 235.9 MB in the beginning and 857.7 MB in the end (delta: 621.8 MB). Free memory was 193.9 MB in the beginning and 617.7 MB in the end (delta: -423.8 MB). Peak memory consumption was 198.0 MB. Max. memory is 7.1 GB. [2020-10-13 12:48:24,625 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 141.0 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 728.92 ms. Allocated memory was 141.0 MB in the beginning and 201.9 MB in the end (delta: 60.8 MB). Free memory was 102.8 MB in the beginning and 170.4 MB in the end (delta: -67.6 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 104.50 ms. Allocated memory is still 201.9 MB. Free memory was 170.4 MB in the beginning and 166.4 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1015.69 ms. Allocated memory was 201.9 MB in the beginning and 235.9 MB in the end (delta: 34.1 MB). Free memory was 166.4 MB in the beginning and 195.4 MB in the end (delta: -28.9 MB). Peak memory consumption was 80.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 51475.13 ms. Allocated memory was 235.9 MB in the beginning and 857.7 MB in the end (delta: 621.8 MB). Free memory was 193.9 MB in the beginning and 617.7 MB in the end (delta: -423.8 MB). Peak memory consumption was 198.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 317]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L117] int pumpRunning = 0; [L118] int systemActive = 1; [L491] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L715] int cleanupTimeShifts = 4; [L814] int waterLevel = 1; [L815] int methaneLevelCritical = 0; [L791] int retValue_acc ; [L792] int tmp ; [L796] FCALL select_helpers() [L797] FCALL select_features() [L798] CALL, EXPR valid_product() [L934] int retValue_acc ; [L937] retValue_acc = 1 [L938] return (retValue_acc); [L798] RET, EXPR valid_product() [L798] tmp = valid_product() [L800] COND TRUE \read(tmp) [L802] FCALL setup() [L803] CALL runTest() [L782] CALL test() [L45] int splverifierCounter ; [L46] int tmp ; [L47] int tmp___0 ; [L48] int tmp___1 ; [L49] int tmp___2 ; [L52] splverifierCounter = 0 [L54] COND TRUE 1 [L56] COND TRUE splverifierCounter < 4 [L62] tmp = __VERIFIER_nondet_int() [L64] COND TRUE \read(tmp) [L66] CALL waterRise() [L832] COND TRUE waterLevel < 2 [L833] waterLevel = waterLevel + 1 [L66] RET waterRise() [L72] tmp___0 = __VERIFIER_nondet_int() [L74] COND FALSE !(\read(tmp___0)) [L82] tmp___2 = __VERIFIER_nondet_int() [L84] COND TRUE \read(tmp___2) [L97] CALL timeShift() [L125] COND FALSE !(\read(pumpRunning)) [L132] COND TRUE \read(systemActive) [L134] CALL processEnvironment() [L180] int tmp ; [L183] COND FALSE !(\read(pumpRunning)) [L198] CALL processEnvironment__wrappee__methaneQuery() [L154] int tmp ; [L157] COND TRUE ! pumpRunning [L159] CALL, EXPR isHighWaterLevel() [L294] int retValue_acc ; [L295] int tmp ; [L296] int tmp___0 ; [L300] CALL, EXPR isHighWaterSensorDry() [L894] int retValue_acc ; [L897] COND FALSE !(waterLevel < 2) [L901] retValue_acc = 0 [L902] return (retValue_acc); [L300] RET, EXPR isHighWaterSensorDry() [L300] tmp = isHighWaterSensorDry() [L302] COND FALSE !(\read(tmp)) [L305] tmp___0 = 1 [L307] retValue_acc = tmp___0 [L308] return (retValue_acc); [L159] RET, EXPR isHighWaterLevel() [L159] tmp = isHighWaterLevel() [L161] COND TRUE \read(tmp) [L163] CALL activatePump() [L213] int tmp ; [L217] CALL, EXPR isMethaneAlarm() [L238] int retValue_acc ; [L242] CALL, EXPR isMethaneLevelCritical() [L853] int retValue_acc ; [L856] retValue_acc = methaneLevelCritical [L857] return (retValue_acc); [L242] RET, EXPR isMethaneLevelCritical() [L242] retValue_acc = isMethaneLevelCritical() [L244] return (retValue_acc); [L217] RET, EXPR isMethaneAlarm() [L217] tmp = isMethaneAlarm() [L219] COND FALSE !(\read(tmp)) [L223] CALL activatePump__wrappee__highWaterSensor() [L208] pumpRunning = 1 [L223] RET activatePump__wrappee__highWaterSensor() [L163] RET activatePump() [L198] RET processEnvironment__wrappee__methaneQuery() [L134] RET processEnvironment() [L140] CALL __utac_acc__Specification4_spec__1() [L690] int tmp ; [L691] int tmp___0 ; [L695] CALL, EXPR getWaterLevel() [L885] int retValue_acc ; [L888] retValue_acc = waterLevel [L889] return (retValue_acc); [L695] RET, EXPR getWaterLevel() [L695] tmp = getWaterLevel() [L697] COND FALSE !(tmp == 0) [L140] RET __utac_acc__Specification4_spec__1() [L97] RET timeShift() [L54] COND TRUE 1 [L56] COND TRUE splverifierCounter < 4 [L62] tmp = __VERIFIER_nondet_int() [L64] COND FALSE !(\read(tmp)) [L72] tmp___0 = __VERIFIER_nondet_int() [L74] COND FALSE !(\read(tmp___0)) [L82] tmp___2 = __VERIFIER_nondet_int() [L84] COND TRUE \read(tmp___2) [L97] CALL timeShift() [L125] COND TRUE \read(pumpRunning) [L127] CALL lowerWaterLevel() [L820] COND TRUE waterLevel > 0 [L821] waterLevel = waterLevel - 1 [L127] RET lowerWaterLevel() [L132] COND TRUE \read(systemActive) [L134] CALL processEnvironment() [L180] int tmp ; [L183] COND TRUE \read(pumpRunning) [L185] CALL, EXPR isMethaneAlarm() [L238] int retValue_acc ; [L242] CALL, EXPR isMethaneLevelCritical() [L853] int retValue_acc ; [L856] retValue_acc = methaneLevelCritical [L857] return (retValue_acc); [L242] RET, EXPR isMethaneLevelCritical() [L242] retValue_acc = isMethaneLevelCritical() [L244] return (retValue_acc); [L185] RET, EXPR isMethaneAlarm() [L185] tmp = isMethaneAlarm() [L187] COND FALSE !(\read(tmp)) [L193] CALL processEnvironment__wrappee__methaneQuery() [L154] int tmp ; [L157] COND FALSE !(! pumpRunning) [L172] FCALL processEnvironment__wrappee__base() [L193] RET processEnvironment__wrappee__methaneQuery() [L134] RET processEnvironment() [L140] CALL __utac_acc__Specification4_spec__1() [L690] int tmp ; [L691] int tmp___0 ; [L695] CALL, EXPR getWaterLevel() [L885] int retValue_acc ; [L888] retValue_acc = waterLevel [L889] return (retValue_acc); [L695] RET, EXPR getWaterLevel() [L695] tmp = getWaterLevel() [L697] COND FALSE !(tmp == 0) [L140] RET __utac_acc__Specification4_spec__1() [L97] RET timeShift() [L54] COND TRUE 1 [L56] COND TRUE splverifierCounter < 4 [L62] tmp = __VERIFIER_nondet_int() [L64] COND FALSE !(\read(tmp)) [L72] tmp___0 = __VERIFIER_nondet_int() [L74] COND FALSE !(\read(tmp___0)) [L82] tmp___2 = __VERIFIER_nondet_int() [L84] COND TRUE \read(tmp___2) [L97] CALL timeShift() [L125] COND TRUE \read(pumpRunning) [L127] CALL lowerWaterLevel() [L820] COND TRUE waterLevel > 0 [L821] waterLevel = waterLevel - 1 [L127] RET lowerWaterLevel() [L132] COND TRUE \read(systemActive) [L134] CALL processEnvironment() [L180] int tmp ; [L183] COND TRUE \read(pumpRunning) [L185] CALL, EXPR isMethaneAlarm() [L238] int retValue_acc ; [L242] CALL, EXPR isMethaneLevelCritical() [L853] int retValue_acc ; [L856] retValue_acc = methaneLevelCritical [L857] return (retValue_acc); [L242] RET, EXPR isMethaneLevelCritical() [L242] retValue_acc = isMethaneLevelCritical() [L244] return (retValue_acc); [L185] RET, EXPR isMethaneAlarm() [L185] tmp = isMethaneAlarm() [L187] COND FALSE !(\read(tmp)) [L193] CALL processEnvironment__wrappee__methaneQuery() [L154] int tmp ; [L157] COND FALSE !(! pumpRunning) [L172] FCALL processEnvironment__wrappee__base() [L193] RET processEnvironment__wrappee__methaneQuery() [L134] RET processEnvironment() [L140] CALL __utac_acc__Specification4_spec__1() [L690] int tmp ; [L691] int tmp___0 ; [L695] CALL, EXPR getWaterLevel() [L885] int retValue_acc ; [L888] retValue_acc = waterLevel [L889] return (retValue_acc); [L695] RET, EXPR getWaterLevel() [L695] tmp = getWaterLevel() [L697] COND TRUE tmp == 0 [L699] CALL, EXPR isPumpRunning() [L249] int retValue_acc ; [L252] retValue_acc = pumpRunning [L253] return (retValue_acc); [L699] RET, EXPR isPumpRunning() [L699] tmp___0 = isPumpRunning() [L701] COND TRUE \read(tmp___0) [L703] CALL __automaton_fail() [L317] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 232 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 51.3s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 22.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1117 SDtfs, 1993 SDslu, 1018 SDs, 0 SdLazy, 4936 SolverSat, 1302 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 383 GetRequests, 279 SyntacticMatches, 9 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 10.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=550occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 9 MinimizatonAttempts, 393 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 27.7s InterpolantComputationTime, 1028 NumberOfCodeBlocks, 1028 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 819 ConstructedInterpolants, 0 QuantifiedInterpolants, 276357 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 7 PerfectInterpolantSequences, 98/103 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...