/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product62.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 01:48:48,910 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 01:48:48,915 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 01:48:48,958 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 01:48:48,960 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 01:48:48,967 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 01:48:48,969 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 01:48:48,973 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 01:48:48,977 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 01:48:48,980 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 01:48:48,981 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 01:48:48,982 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 01:48:48,982 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 01:48:48,985 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 01:48:48,988 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 01:48:48,991 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 01:48:48,993 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 01:48:48,994 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 01:48:48,996 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 01:48:49,004 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 01:48:49,007 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 01:48:49,008 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 01:48:49,009 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 01:48:49,010 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 01:48:49,025 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 01:48:49,026 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 01:48:49,026 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 01:48:49,029 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 01:48:49,030 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 01:48:49,031 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 01:48:49,031 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 01:48:49,035 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 01:48:49,036 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 01:48:49,037 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 01:48:49,040 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 01:48:49,040 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 01:48:49,042 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 01:48:49,042 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 01:48:49,042 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 01:48:49,044 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 01:48:49,045 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 01:48:49,046 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 01:48:49,094 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 01:48:49,095 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 01:48:49,097 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 01:48:49,098 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 01:48:49,098 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 01:48:49,098 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 01:48:49,099 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 01:48:49,099 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 01:48:49,099 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 01:48:49,099 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 01:48:49,100 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 01:48:49,101 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 01:48:49,101 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 01:48:49,101 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 01:48:49,101 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 01:48:49,102 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 01:48:49,102 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 01:48:49,102 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 01:48:49,102 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 01:48:49,102 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 01:48:49,103 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 01:48:49,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:48:49,103 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 01:48:49,103 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 01:48:49,104 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 01:48:49,104 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 01:48:49,104 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 01:48:49,104 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 01:48:49,104 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 01:48:49,104 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; [2020-09-25 01:48:49,586 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 01:48:49,603 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 01:48:49,608 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 01:48:49,610 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 01:48:49,610 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 01:48:49,611 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product62.cil.c [2020-09-25 01:48:49,695 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/854d445ec/e92beeecf0584c169398decc154c1106/FLAGc914e1323 [2020-09-25 01:48:50,314 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 01:48:50,315 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product62.cil.c [2020-09-25 01:48:50,332 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/854d445ec/e92beeecf0584c169398decc154c1106/FLAGc914e1323 [2020-09-25 01:48:50,607 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/854d445ec/e92beeecf0584c169398decc154c1106 [2020-09-25 01:48:50,621 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 01:48:50,628 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 01:48:50,631 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 01:48:50,631 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 01:48:50,635 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 01:48:50,636 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:48:50" (1/1) ... [2020-09-25 01:48:50,640 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56344ce7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:48:50, skipping insertion in model container [2020-09-25 01:48:50,640 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:48:50" (1/1) ... [2020-09-25 01:48:50,649 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 01:48:50,722 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 01:48:51,135 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:48:51,151 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 01:48:51,352 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:48:51,400 INFO L208 MainTranslator]: Completed translation [2020-09-25 01:48:51,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:48:51 WrapperNode [2020-09-25 01:48:51,402 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 01:48:51,404 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 01:48:51,404 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 01:48:51,404 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 01:48:51,422 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:48:51" (1/1) ... [2020-09-25 01:48:51,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:48:51" (1/1) ... [2020-09-25 01:48:51,447 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:48:51" (1/1) ... [2020-09-25 01:48:51,447 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:48:51" (1/1) ... [2020-09-25 01:48:51,482 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:48:51" (1/1) ... [2020-09-25 01:48:51,494 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:48:51" (1/1) ... [2020-09-25 01:48:51,500 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:48:51" (1/1) ... [2020-09-25 01:48:51,511 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 01:48:51,512 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 01:48:51,512 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 01:48:51,512 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 01:48:51,514 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:48:51" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:48:51,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 01:48:51,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 01:48:51,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 01:48:51,625 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 01:48:51,626 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 01:48:51,626 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 01:48:51,626 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 01:48:51,626 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 01:48:51,626 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 01:48:51,626 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 01:48:51,627 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 01:48:51,627 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 01:48:51,627 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 01:48:51,627 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 01:48:51,627 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 01:48:51,628 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 01:48:51,628 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 01:48:51,628 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 01:48:51,628 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 01:48:51,629 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 01:48:51,629 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 01:48:51,629 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 01:48:51,629 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 01:48:51,629 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 01:48:51,630 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 01:48:51,630 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 01:48:51,630 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 01:48:51,630 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 01:48:51,630 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 01:48:51,630 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 01:48:51,631 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 01:48:51,631 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 01:48:51,631 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 01:48:51,631 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 01:48:51,631 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 01:48:51,631 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 01:48:51,632 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 01:48:51,632 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 01:48:51,632 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 01:48:51,632 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 01:48:51,632 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 01:48:51,632 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 01:48:51,633 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 01:48:51,633 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 01:48:51,633 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 01:48:51,633 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 01:48:51,633 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 01:48:51,633 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 01:48:51,633 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 01:48:51,634 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 01:48:51,634 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 01:48:51,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 01:48:51,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 01:48:51,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 01:48:51,635 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 01:48:51,635 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 01:48:51,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 01:48:51,635 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 01:48:51,635 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 01:48:51,635 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 01:48:51,636 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 01:48:51,636 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 01:48:51,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 01:48:51,636 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 01:48:51,636 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 01:48:51,637 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 01:48:51,637 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 01:48:51,637 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 01:48:51,637 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 01:48:51,637 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 01:48:51,638 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 01:48:51,638 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 01:48:51,638 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 01:48:51,638 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 01:48:51,638 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 01:48:51,638 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 01:48:51,639 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 01:48:51,639 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 01:48:51,639 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 01:48:51,639 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 01:48:51,639 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 01:48:51,639 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 01:48:51,640 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 01:48:51,640 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 01:48:51,640 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 01:48:51,640 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 01:48:51,640 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 01:48:51,641 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 01:48:51,641 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 01:48:51,641 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 01:48:51,641 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 01:48:51,641 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 01:48:51,641 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 01:48:51,642 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 01:48:51,642 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 01:48:51,642 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 01:48:51,642 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 01:48:51,642 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 01:48:51,643 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 01:48:51,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 01:48:51,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 01:48:51,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 01:48:53,061 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 01:48:53,062 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 01:48:53,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:48:53 BoogieIcfgContainer [2020-09-25 01:48:53,070 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 01:48:53,071 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 01:48:53,072 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 01:48:53,076 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 01:48:53,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:48:50" (1/3) ... [2020-09-25 01:48:53,077 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@312f68e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:48:53, skipping insertion in model container [2020-09-25 01:48:53,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:48:51" (2/3) ... [2020-09-25 01:48:53,077 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@312f68e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:48:53, skipping insertion in model container [2020-09-25 01:48:53,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:48:53" (3/3) ... [2020-09-25 01:48:53,080 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product62.cil.c [2020-09-25 01:48:53,091 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 01:48:53,101 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 01:48:53,121 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 01:48:53,153 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 01:48:53,153 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 01:48:53,154 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 01:48:53,154 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 01:48:53,154 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 01:48:53,154 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 01:48:53,154 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 01:48:53,155 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 01:48:53,186 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states. [2020-09-25 01:48:53,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 01:48:53,206 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:48:53,208 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:48:53,208 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:48:53,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:48:53,216 INFO L82 PathProgramCache]: Analyzing trace with hash -722874537, now seen corresponding path program 1 times [2020-09-25 01:48:53,228 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:48:53,228 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1033153476] [2020-09-25 01:48:53,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:48:53,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:53,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:54,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:55,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:56,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:57,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:58,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:58,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 01:48:58,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 01:48:58,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5064 [2020-09-25 01:48:58,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:58,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:58,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 01:48:58,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:58,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 01:48:59,355 WARN L193 SmtUtils]: Spent 406.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:48:59,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:48:59,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:59,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:59,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:59,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:48:59,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:59,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-09-25 01:48:59,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:59,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:59,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:48:59,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:59,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:48:59,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:48:59,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:59,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:59,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:59,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:48:59,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:59,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 01:48:59,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:59,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:59,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:48:59,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:59,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:48:59,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:48:59,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:59,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:59,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:59,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:48:59,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:59,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 01:48:59,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:59,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:59,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:48:59,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:59,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:48:59,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:48:59,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:59,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:59,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:59,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:48:59,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:59,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 01:48:59,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:59,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:59,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:48:59,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:59,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:48:59,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:48:59,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:59,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:59,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:59,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:48:59,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:59,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:48:59,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:59,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:59,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:48:59,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:59,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:48:59,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:48:59,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:59,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:59,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:59,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:48:59,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:59,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:48:59,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:59,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:59,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:48:59,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:59,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:48:59,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 01:48:59,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:59,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:59,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:59,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:48:59,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:59,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:48:59,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:59,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:59,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:48:59,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:59,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:48:59,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 01:48:59,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:59,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:59,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:59,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:48:59,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:59,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:48:59,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:59,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:59,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:48:59,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:59,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:48:59,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:48:59,734 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1033153476] [2020-09-25 01:48:59,737 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:48:59,738 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 01:48:59,739 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240578693] [2020-09-25 01:48:59,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 01:48:59,752 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:48:59,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 01:48:59,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 01:48:59,779 INFO L87 Difference]: Start difference. First operand 354 states. Second operand 4 states. [2020-09-25 01:49:01,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:49:01,426 INFO L93 Difference]: Finished difference Result 574 states and 680 transitions. [2020-09-25 01:49:01,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 01:49:01,429 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-25 01:49:01,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:49:01,453 INFO L225 Difference]: With dead ends: 574 [2020-09-25 01:49:01,453 INFO L226 Difference]: Without dead ends: 356 [2020-09-25 01:49:01,460 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 01:49:01,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2020-09-25 01:49:01,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 303. [2020-09-25 01:49:01,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 303 states. [2020-09-25 01:49:01,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 333 transitions. [2020-09-25 01:49:01,665 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 333 transitions. Word has length 148 [2020-09-25 01:49:01,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:49:01,671 INFO L479 AbstractCegarLoop]: Abstraction has 303 states and 333 transitions. [2020-09-25 01:49:01,672 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 01:49:01,672 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 333 transitions. [2020-09-25 01:49:01,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-25 01:49:01,682 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:49:01,683 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:49:01,683 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 01:49:01,683 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:49:01,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:49:01,684 INFO L82 PathProgramCache]: Analyzing trace with hash 1138683405, now seen corresponding path program 1 times [2020-09-25 01:49:01,684 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:49:01,684 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1987338820] [2020-09-25 01:49:01,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:49:01,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:01,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:01,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:03,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:04,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:04,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:06,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:06,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-25 01:49:06,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 01:49:06,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5046 [2020-09-25 01:49:06,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:06,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:49:06,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 01:49:06,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 01:49:06,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:07,103 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:49:07,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:49:07,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:07,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:07,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:07,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:49:07,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:07,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-25 01:49:07,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:07,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:07,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:07,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:07,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:07,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:49:07,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:07,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:07,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:07,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:49:07,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:07,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:49:07,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:07,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:07,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:07,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:07,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:07,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:49:07,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:07,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:07,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:07,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:49:07,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:07,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:49:07,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:07,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:07,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:07,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:07,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:07,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:49:07,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:07,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:07,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:07,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:49:07,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:07,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:49:07,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:07,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:07,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:07,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:07,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:07,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:49:07,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:07,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:07,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:07,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:49:07,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:07,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:49:07,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:07,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:07,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:07,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:07,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:07,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:49:07,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:07,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:07,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:07,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:49:07,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:07,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:49:07,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:07,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:07,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:07,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:07,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:07,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 01:49:07,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:07,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:07,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:07,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:49:07,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:07,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:49:07,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:07,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:07,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:49:07,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:07,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 01:49:07,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 01:49:07,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:07,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:07,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:07,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:49:07,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:07,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:49:07,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:07,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:07,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:49:07,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:07,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:07,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:49:07,357 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1987338820] [2020-09-25 01:49:07,358 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:49:07,358 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 01:49:07,358 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452912124] [2020-09-25 01:49:07,361 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 01:49:07,361 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:49:07,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 01:49:07,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:49:07,362 INFO L87 Difference]: Start difference. First operand 303 states and 333 transitions. Second operand 5 states. [2020-09-25 01:49:08,031 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:49:09,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:49:09,495 INFO L93 Difference]: Finished difference Result 499 states and 571 transitions. [2020-09-25 01:49:09,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 01:49:09,496 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-25 01:49:09,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:49:09,507 INFO L225 Difference]: With dead ends: 499 [2020-09-25 01:49:09,508 INFO L226 Difference]: Without dead ends: 345 [2020-09-25 01:49:09,513 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 01:49:09,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2020-09-25 01:49:09,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 293. [2020-09-25 01:49:09,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 293 states. [2020-09-25 01:49:09,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 320 transitions. [2020-09-25 01:49:09,641 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 320 transitions. Word has length 149 [2020-09-25 01:49:09,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:49:09,644 INFO L479 AbstractCegarLoop]: Abstraction has 293 states and 320 transitions. [2020-09-25 01:49:09,644 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 01:49:09,645 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 320 transitions. [2020-09-25 01:49:09,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 01:49:09,649 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:49:09,649 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:49:09,650 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 01:49:09,650 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:49:09,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:49:09,651 INFO L82 PathProgramCache]: Analyzing trace with hash 1213678048, now seen corresponding path program 1 times [2020-09-25 01:49:09,651 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:49:09,651 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [358060155] [2020-09-25 01:49:09,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:49:09,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:09,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:10,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:11,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:11,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:12,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:14,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:14,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-09-25 01:49:14,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 01:49:14,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-25 01:49:14,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:14,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:49:14,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 01:49:14,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:49:14,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:15,037 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:49:15,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:49:15,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:15,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:15,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:15,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:49:15,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:15,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-25 01:49:15,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:15,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:15,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:15,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:15,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:15,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:49:15,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:15,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:15,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:15,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:49:15,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:15,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:49:15,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:15,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:15,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:15,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:15,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:15,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:49:15,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:15,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:15,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:15,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:49:15,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:15,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:49:15,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:15,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:15,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:15,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:15,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:15,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:49:15,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:15,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:15,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:15,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:49:15,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:15,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:49:15,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:15,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:15,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:15,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:15,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:15,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:49:15,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:15,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:15,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:15,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:49:15,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:15,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:49:15,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:15,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:15,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:15,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:15,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:15,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:49:15,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:15,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:15,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:15,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:49:15,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:15,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:49:15,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:15,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:15,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:15,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:15,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:15,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 01:49:15,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:15,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:15,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:15,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:49:15,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:15,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:49:15,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:15,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:49:15,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:15,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 01:49:15,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:15,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 01:49:15,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:15,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:15,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:15,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:49:15,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:15,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:49:15,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:15,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:15,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:49:15,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:15,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:15,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 01:49:15,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:15,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:15,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:15,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:49:15,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:15,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:49:15,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:15,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:15,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:49:15,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:15,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:15,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:49:15,351 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [358060155] [2020-09-25 01:49:15,351 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:49:15,351 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 01:49:15,352 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744307088] [2020-09-25 01:49:15,353 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 01:49:15,354 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:49:15,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 01:49:15,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 01:49:15,357 INFO L87 Difference]: Start difference. First operand 293 states and 320 transitions. Second operand 6 states. [2020-09-25 01:49:15,889 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:49:17,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:49:17,164 INFO L93 Difference]: Finished difference Result 546 states and 636 transitions. [2020-09-25 01:49:17,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 01:49:17,165 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2020-09-25 01:49:17,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:49:17,169 INFO L225 Difference]: With dead ends: 546 [2020-09-25 01:49:17,169 INFO L226 Difference]: Without dead ends: 368 [2020-09-25 01:49:17,170 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 01:49:17,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2020-09-25 01:49:17,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 293. [2020-09-25 01:49:17,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 293 states. [2020-09-25 01:49:17,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 319 transitions. [2020-09-25 01:49:17,213 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 319 transitions. Word has length 162 [2020-09-25 01:49:17,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:49:17,214 INFO L479 AbstractCegarLoop]: Abstraction has 293 states and 319 transitions. [2020-09-25 01:49:17,214 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 01:49:17,214 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 319 transitions. [2020-09-25 01:49:17,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-09-25 01:49:17,217 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:49:17,217 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:49:17,217 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 01:49:17,217 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:49:17,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:49:17,218 INFO L82 PathProgramCache]: Analyzing trace with hash 1760191468, now seen corresponding path program 1 times [2020-09-25 01:49:17,218 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:49:17,218 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1823633459] [2020-09-25 01:49:17,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:49:17,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:17,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:17,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:18,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:18,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:20,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:20,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:21,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:21,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:22,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:22,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:22,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 221 [2020-09-25 01:49:22,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 01:49:22,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-09-25 01:49:22,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:22,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:49:22,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 170 [2020-09-25 01:49:22,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 01:49:22,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:22,558 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:49:22,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:49:22,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:22,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:22,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:22,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:49:22,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:22,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-09-25 01:49:22,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:22,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:22,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:22,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:22,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:22,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:49:22,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:22,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:22,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:22,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:49:22,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:22,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:49:22,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:22,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:22,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:22,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:22,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:22,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:49:22,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:22,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:22,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:22,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:49:22,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:22,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:49:22,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:22,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:22,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:22,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:22,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:22,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:49:22,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:22,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:22,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:22,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:49:22,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:22,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:49:22,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:22,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:22,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:22,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:22,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:22,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:49:22,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:22,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:22,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:22,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:49:22,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:22,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:49:22,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:22,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:22,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:22,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:22,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:22,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:49:22,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:22,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:22,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:22,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:49:22,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:22,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:49:22,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:22,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:22,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:22,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:22,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:22,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 01:49:22,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:22,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:22,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:22,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:49:22,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:22,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:49:22,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:22,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:22,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:22,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:22,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:22,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 01:49:22,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:22,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:22,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:22,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:22,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 01:49:22,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:49:22,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 01:49:22,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:22,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:49:22,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-25 01:49:22,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 01:49:22,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:22,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:49:22,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:22,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:22,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:22,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 01:49:22,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:22,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 01:49:22,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:22,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:49:22,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 01:49:22,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 01:49:22,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:22,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:49:22,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:22,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:22,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:22,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 01:49:22,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:22,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 01:49:22,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:22,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:49:22,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 01:49:22,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 01:49:22,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:22,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:49:22,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:22,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:22,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:22,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:49:22,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:22,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:49:22,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:22,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:49:22,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:22,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:49:22,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:22,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 01:49:22,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:22,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:22,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:22,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:49:22,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:22,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:49:22,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:22,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:22,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:49:22,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:22,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:22,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-09-25 01:49:22,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:22,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:22,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:22,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:49:22,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:22,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:49:22,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:22,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:22,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:49:22,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:22,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:22,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:49:22,986 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1823633459] [2020-09-25 01:49:22,986 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:49:22,987 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 01:49:22,987 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30362081] [2020-09-25 01:49:22,988 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 01:49:22,988 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:49:22,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 01:49:22,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-25 01:49:22,989 INFO L87 Difference]: Start difference. First operand 293 states and 319 transitions. Second operand 8 states. [2020-09-25 01:49:23,629 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:49:25,444 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:49:27,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:49:27,118 INFO L93 Difference]: Finished difference Result 748 states and 894 transitions. [2020-09-25 01:49:27,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-25 01:49:27,118 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 180 [2020-09-25 01:49:27,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:49:27,124 INFO L225 Difference]: With dead ends: 748 [2020-09-25 01:49:27,124 INFO L226 Difference]: Without dead ends: 570 [2020-09-25 01:49:27,127 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=138, Invalid=368, Unknown=0, NotChecked=0, Total=506 [2020-09-25 01:49:27,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2020-09-25 01:49:27,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 429. [2020-09-25 01:49:27,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 429 states. [2020-09-25 01:49:27,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 464 transitions. [2020-09-25 01:49:27,199 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 464 transitions. Word has length 180 [2020-09-25 01:49:27,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:49:27,200 INFO L479 AbstractCegarLoop]: Abstraction has 429 states and 464 transitions. [2020-09-25 01:49:27,200 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 01:49:27,200 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 464 transitions. [2020-09-25 01:49:27,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-09-25 01:49:27,203 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:49:27,203 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:49:27,203 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 01:49:27,203 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:49:27,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:49:27,204 INFO L82 PathProgramCache]: Analyzing trace with hash -1107693501, now seen corresponding path program 1 times [2020-09-25 01:49:27,204 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:49:27,204 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1084292998] [2020-09-25 01:49:27,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:49:27,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:27,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:28,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:28,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:28,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:29,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:31,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:32,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:32,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 249 [2020-09-25 01:49:32,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 01:49:32,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-09-25 01:49:32,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:32,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:49:32,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 175 [2020-09-25 01:49:32,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 01:49:32,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:32,609 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:49:32,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:49:32,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:32,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:32,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:32,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:49:32,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:32,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-25 01:49:32,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:32,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:32,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:32,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:32,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:32,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:49:32,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:32,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:32,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:32,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:49:32,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:32,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:49:32,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:32,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:32,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:32,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:32,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:32,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:49:32,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:32,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:32,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:32,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:49:32,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:32,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:49:32,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:32,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:32,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:32,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:32,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:32,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:49:32,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:32,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:32,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:32,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:49:32,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:32,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:49:32,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:32,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:32,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:32,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:32,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:32,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:49:32,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:32,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:32,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:32,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:49:32,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:32,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:49:32,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:32,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:32,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:32,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:32,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:32,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:49:32,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:32,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:32,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:32,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:49:32,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:32,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:49:32,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:32,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:32,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:32,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:32,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:32,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 01:49:32,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:32,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:32,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:32,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:49:32,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:32,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:49:32,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:32,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:32,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:32,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:32,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:32,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 01:49:32,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:32,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:32,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:32,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:32,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:32,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-25 01:49:32,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 01:49:32,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-09-25 01:49:32,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:32,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:49:32,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:32,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 01:49:32,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:32,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:49:32,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:32,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:33,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:33,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:33,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:33,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 01:49:33,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 01:49:33,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-25 01:49:33,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:33,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:49:33,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:33,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 01:49:33,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:33,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:49:33,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:33,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:33,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:33,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:33,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 01:49:33,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:49:33,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-25 01:49:33,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:33,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:49:33,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:33,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 01:49:33,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:33,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:49:33,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:33,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:33,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:33,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 01:49:33,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:33,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 01:49:33,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:33,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:49:33,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:33,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 01:49:33,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:33,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 01:49:33,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:33,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:33,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:33,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:49:33,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:33,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:49:33,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:33,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:33,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:33,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:33,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:33,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 01:49:33,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:33,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:33,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:33,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:49:33,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:33,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:49:33,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:33,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:49:33,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:33,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:49:33,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:33,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-25 01:49:33,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:33,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:33,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:33,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:49:33,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:33,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:49:33,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:33,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:49:33,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:33,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:49:33,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:33,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2020-09-25 01:49:33,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:33,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:33,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:33,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:49:33,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:33,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:49:33,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:33,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:49:33,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:33,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:49:33,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:33,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:49:33,394 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1084292998] [2020-09-25 01:49:33,394 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:49:33,394 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 01:49:33,395 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031144666] [2020-09-25 01:49:33,395 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 01:49:33,395 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:49:33,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 01:49:33,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 01:49:33,396 INFO L87 Difference]: Start difference. First operand 429 states and 464 transitions. Second operand 11 states. [2020-09-25 01:49:34,007 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:49:35,822 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:49:36,145 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 01:49:36,553 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 190