/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 log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product54.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 16:59:03,545 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 16:59:03,549 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 16:59:03,575 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 16:59:03,575 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 16:59:03,576 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 16:59:03,578 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 16:59:03,580 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 16:59:03,582 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 16:59:03,583 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 16:59:03,584 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 16:59:03,585 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 16:59:03,585 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 16:59:03,586 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 16:59:03,588 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 16:59:03,589 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 16:59:03,590 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 16:59:03,591 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 16:59:03,593 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 16:59:03,595 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 16:59:03,597 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 16:59:03,598 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 16:59:03,600 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 16:59:03,601 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 16:59:03,604 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 16:59:03,604 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 16:59:03,605 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 16:59:03,606 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 16:59:03,606 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 16:59:03,607 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 16:59:03,608 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 16:59:03,609 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 16:59:03,610 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 16:59:03,611 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 16:59:03,612 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 16:59:03,612 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 16:59:03,613 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 16:59:03,613 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 16:59:03,613 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 16:59:03,614 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 16:59:03,615 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 16:59:03,616 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 16:59:03,642 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 16:59:03,642 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 16:59:03,644 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 16:59:03,644 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 16:59:03,644 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 16:59:03,644 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 16:59:03,645 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 16:59:03,645 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 16:59:03,645 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 16:59:03,645 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 16:59:03,645 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 16:59:03,646 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 16:59:03,646 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 16:59:03,646 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 16:59:03,646 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 16:59:03,646 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 16:59:03,647 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 16:59:03,647 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 16:59:03,647 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 16:59:03,647 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 16:59:03,647 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 16:59:03,648 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:59:03,648 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 16:59:03,648 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 16:59:03,648 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 16:59:03,649 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 16:59:03,649 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 16:59:03,649 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 16:59:03,649 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 16:59:03,649 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;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;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;log-additional-information=true; [2020-09-24 16:59:04,093 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 16:59:04,119 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 16:59:04,123 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 16:59:04,125 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 16:59:04,126 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 16:59:04,129 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product54.cil.c [2020-09-24 16:59:04,217 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0b2147e21/895c20a2895d4d42b7c703856698df88/FLAGdd5d1fd43 [2020-09-24 16:59:04,809 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 16:59:04,810 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product54.cil.c [2020-09-24 16:59:04,825 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0b2147e21/895c20a2895d4d42b7c703856698df88/FLAGdd5d1fd43 [2020-09-24 16:59:05,091 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0b2147e21/895c20a2895d4d42b7c703856698df88 [2020-09-24 16:59:05,103 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 16:59:05,108 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 16:59:05,109 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 16:59:05,109 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 16:59:05,113 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 16:59:05,114 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:59:05" (1/1) ... [2020-09-24 16:59:05,119 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:59:05, skipping insertion in model container [2020-09-24 16:59:05,119 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:59:05" (1/1) ... [2020-09-24 16:59:05,128 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 16:59:05,182 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 16:59:05,576 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:59:05,593 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 16:59:05,766 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:59:05,821 INFO L208 MainTranslator]: Completed translation [2020-09-24 16:59:05,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:59:05 WrapperNode [2020-09-24 16:59:05,822 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 16:59:05,823 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 16:59:05,823 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 16:59:05,824 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 16:59:05,841 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:59:05" (1/1) ... [2020-09-24 16:59:05,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:59:05" (1/1) ... [2020-09-24 16:59:05,866 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:59:05" (1/1) ... [2020-09-24 16:59:05,867 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:59:05" (1/1) ... [2020-09-24 16:59:05,917 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:59:05" (1/1) ... [2020-09-24 16:59:05,932 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:59:05" (1/1) ... [2020-09-24 16:59:05,937 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:59:05" (1/1) ... [2020-09-24 16:59:05,956 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 16:59:05,957 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 16:59:05,957 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 16:59:05,957 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 16:59:05,963 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:59:05" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:59:06,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 16:59:06,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 16:59:06,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 16:59:06,062 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-24 16:59:06,062 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-24 16:59:06,063 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-24 16:59:06,063 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 16:59:06,063 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 16:59:06,063 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 16:59:06,064 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 16:59:06,064 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 16:59:06,065 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 16:59:06,065 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 16:59:06,065 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 16:59:06,065 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 16:59:06,066 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 16:59:06,066 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 16:59:06,067 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 16:59:06,067 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 16:59:06,067 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 16:59:06,067 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 16:59:06,067 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 16:59:06,068 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 16:59:06,068 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 16:59:06,069 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 16:59:06,069 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 16:59:06,069 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 16:59:06,069 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 16:59:06,069 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 16:59:06,070 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 16:59:06,070 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 16:59:06,070 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 16:59:06,070 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 16:59:06,070 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 16:59:06,070 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 16:59:06,070 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 16:59:06,071 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 16:59:06,071 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 16:59:06,071 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 16:59:06,071 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 16:59:06,071 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 16:59:06,071 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 16:59:06,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 16:59:06,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 16:59:06,072 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 16:59:06,072 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 16:59:06,072 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 16:59:06,072 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 16:59:06,072 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 16:59:06,073 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 16:59:06,073 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-24 16:59:06,073 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-24 16:59:06,073 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-24 16:59:06,074 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 16:59:06,074 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 16:59:06,074 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 16:59:06,074 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 16:59:06,075 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 16:59:06,075 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 16:59:06,075 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 16:59:06,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 16:59:06,075 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 16:59:06,075 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 16:59:06,075 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 16:59:06,076 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 16:59:06,076 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 16:59:06,076 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 16:59:06,076 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 16:59:06,076 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 16:59:06,076 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 16:59:06,077 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 16:59:06,077 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 16:59:06,078 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 16:59:06,078 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 16:59:06,079 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 16:59:06,079 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 16:59:06,079 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 16:59:06,079 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 16:59:06,079 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 16:59:06,080 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 16:59:06,080 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 16:59:06,080 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 16:59:06,081 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 16:59:06,081 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 16:59:06,081 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 16:59:06,081 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 16:59:06,081 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 16:59:06,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 16:59:06,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 16:59:06,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 16:59:06,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 16:59:06,082 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 16:59:06,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 16:59:06,082 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 16:59:06,082 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 16:59:06,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 16:59:06,083 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 16:59:06,083 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 16:59:06,083 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 16:59:06,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 16:59:06,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 16:59:06,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 16:59:07,158 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 16:59:07,158 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 16:59:07,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:59:07 BoogieIcfgContainer [2020-09-24 16:59:07,166 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 16:59:07,167 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 16:59:07,167 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 16:59:07,171 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 16:59:07,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:59:05" (1/3) ... [2020-09-24 16:59:07,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34a1f7be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:59:07, skipping insertion in model container [2020-09-24 16:59:07,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:59:05" (2/3) ... [2020-09-24 16:59:07,173 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34a1f7be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:59:07, skipping insertion in model container [2020-09-24 16:59:07,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:59:07" (3/3) ... [2020-09-24 16:59:07,176 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product54.cil.c [2020-09-24 16:59:07,187 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 16:59:07,203 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 16:59:07,225 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 16:59:07,254 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 16:59:07,254 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 16:59:07,254 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 16:59:07,255 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 16:59:07,255 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 16:59:07,255 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 16:59:07,255 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 16:59:07,255 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 16:59:07,284 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states. [2020-09-24 16:59:07,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 16:59:07,304 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:59:07,306 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:59:07,306 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:59:07,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:59:07,314 INFO L82 PathProgramCache]: Analyzing trace with hash -492062203, now seen corresponding path program 1 times [2020-09-24 16:59:07,325 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:59:07,326 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [121559867] [2020-09-24 16:59:07,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:59:07,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:07,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:08,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:09,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:09,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:12,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:21,912 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:21,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-24 16:59:21,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 16:59:21,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14233 [2020-09-24 16:59:21,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:21,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:59:21,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 161 [2020-09-24 16:59:21,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 16:59:21,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 16:59:22,421 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:59:22,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:59:22,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:22,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:22,591 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:22,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 16:59:22,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:22,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-09-24 16:59:22,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:22,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:22,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:22,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:22,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:22,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 16:59:22,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:22,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:22,671 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:22,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:59:22,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:22,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:22,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:22,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:22,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:22,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:22,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:22,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 16:59:22,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:22,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:22,678 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:22,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:59:22,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:22,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:22,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:22,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:22,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:22,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:22,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:22,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 16:59:22,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:22,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:22,686 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:22,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:22,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:22,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:59:22,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:22,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:22,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:22,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:22,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:22,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 16:59:22,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:22,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:22,692 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:22,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:59:22,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:22,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:22,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:22,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:22,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:22,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:22,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:22,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 16:59:22,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:22,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:22,711 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:22,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:59:22,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:22,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:22,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:22,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:22,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:22,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:22,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:22,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 16:59:22,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:22,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:22,718 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:22,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 16:59:22,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:22,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:22,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:22,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:22,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:22,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:22,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:22,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:59:22,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:22,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:22,725 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:22,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:22,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:22,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:22,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:22,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:22,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:22,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:22,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:22,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 16:59:22,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:22,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:22,734 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:22,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:22,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:22,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:59:22,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:22,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:22,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:22,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:59:22,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:22,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 16:59:22,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:22,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:22,748 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:22,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:22,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:22,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 16:59:22,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:22,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:59:22,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:22,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:59:22,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:22,818 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 16:59:22,819 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [121559867] [2020-09-24 16:59:22,821 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:59:22,821 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 16:59:22,822 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370974099] [2020-09-24 16:59:22,829 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 16:59:22,830 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:59:22,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 16:59:22,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 16:59:22,855 INFO L87 Difference]: Start difference. First operand 354 states. Second operand 9 states. [2020-09-24 16:59:23,472 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 16:59:24,259 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 16:59:24,602 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 16:59:26,051 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:59:26,377 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:59:26,694 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:59:27,151 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:59:27,461 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:59:27,756 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:59:28,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:59:28,878 INFO L93 Difference]: Finished difference Result 686 states and 826 transitions. [2020-09-24 16:59:28,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 16:59:28,880 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 160 [2020-09-24 16:59:28,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:59:28,901 INFO L225 Difference]: With dead ends: 686 [2020-09-24 16:59:28,902 INFO L226 Difference]: Without dead ends: 456 [2020-09-24 16:59:28,909 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-24 16:59:28,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2020-09-24 16:59:29,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 408. [2020-09-24 16:59:29,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 408 states. [2020-09-24 16:59:29,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 457 transitions. [2020-09-24 16:59:29,063 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 457 transitions. Word has length 160 [2020-09-24 16:59:29,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:59:29,067 INFO L479 AbstractCegarLoop]: Abstraction has 408 states and 457 transitions. [2020-09-24 16:59:29,067 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 16:59:29,067 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 457 transitions. [2020-09-24 16:59:29,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-09-24 16:59:29,083 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:59:29,083 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:59:29,084 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 16:59:29,084 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:59:29,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:59:29,084 INFO L82 PathProgramCache]: Analyzing trace with hash -181604155, now seen corresponding path program 1 times [2020-09-24 16:59:29,084 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:59:29,085 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [548178745] [2020-09-24 16:59:29,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:59:29,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:29,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:29,998 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:29,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-09-24 16:59:29,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:29,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 841 [2020-09-24 16:59:29,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:29,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:59:29,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 211 [2020-09-24 16:59:29,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 16:59:29,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:30,264 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:59:30,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:59:30,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:30,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:30,370 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:30,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 16:59:30,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:30,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-24 16:59:30,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:30,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:30,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:30,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:30,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:30,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 16:59:30,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:30,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:30,406 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:30,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:59:30,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:30,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:59:30,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:30,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:30,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:30,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:30,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:30,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 16:59:30,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:30,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:30,410 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:30,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:59:30,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:30,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:59:30,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:30,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:30,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:30,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:30,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:30,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 16:59:30,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:30,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:30,418 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:30,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:30,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:30,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:59:30,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:30,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:30,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:30,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:30,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:30,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 16:59:30,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:30,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:30,424 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:30,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:59:30,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:30,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:59:30,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:30,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:30,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:30,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:30,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:30,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 16:59:30,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:30,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:30,440 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:30,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:59:30,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:30,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:30,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:30,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:30,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:30,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:30,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:30,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 16:59:30,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:30,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:30,457 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:30,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:59:30,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:30,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:59:30,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:30,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:30,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:30,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:30,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:30,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 16:59:30,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:30,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:30,463 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:30,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 16:59:30,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:30,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:30,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:30,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:30,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:30,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:30,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:30,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:59:30,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:30,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:30,469 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:30,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:30,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:30,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:30,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:30,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:30,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:30,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:30,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:30,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 16:59:30,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:30,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:30,562 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:30,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 16:59:30,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:30,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-24 16:59:30,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:30,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:59:30,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 16:59:30,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 16:59:30,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:30,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:59:30,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:30,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:30,650 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:30,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 16:59:30,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:30,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-24 16:59:30,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:30,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:59:30,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 16:59:30,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 16:59:30,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:30,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:59:30,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:30,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:30,725 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:30,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 16:59:30,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:30,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-24 16:59:30,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:30,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:59:30,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 16:59:30,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 16:59:30,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:30,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:59:30,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:30,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:30,787 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:30,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 16:59:30,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:30,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-24 16:59:30,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:30,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:59:30,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:30,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 16:59:30,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:30,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 16:59:30,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:30,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:30,840 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:30,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:59:30,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:30,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:59:30,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:30,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:30,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:30,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:30,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:30,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 16:59:30,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:30,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:30,848 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:30,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:59:30,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:30,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:30,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:30,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:30,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 16:59:30,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:30,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:30,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-09-24 16:59:30,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:30,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:30,863 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:30,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:30,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:30,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:30,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:30,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:30,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:59:30,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:30,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:30,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-24 16:59:30,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:30,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:30,870 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:30,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:30,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:30,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:30,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:30,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:30,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:59:30,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:30,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:31,002 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 16:59:31,003 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [548178745] [2020-09-24 16:59:31,003 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:59:31,003 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 16:59:31,004 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430974815] [2020-09-24 16:59:31,006 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 16:59:31,006 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:59:31,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 16:59:31,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 16:59:31,007 INFO L87 Difference]: Start difference. First operand 408 states and 457 transitions. Second operand 11 states. [2020-09-24 16:59:32,637 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:59:32,947 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 16:59:33,295 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-24 16:59:33,608 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:59:33,926 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 16:59:34,218 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:59:35,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:59:35,668 INFO L93 Difference]: Finished difference Result 864 states and 1062 transitions. [2020-09-24 16:59:35,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 16:59:35,670 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 217 [2020-09-24 16:59:35,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:59:35,682 INFO L225 Difference]: With dead ends: 864 [2020-09-24 16:59:35,682 INFO L226 Difference]: Without dead ends: 571 [2020-09-24 16:59:35,685 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-09-24 16:59:35,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2020-09-24 16:59:35,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 422. [2020-09-24 16:59:35,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 422 states. [2020-09-24 16:59:35,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 477 transitions. [2020-09-24 16:59:35,755 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 477 transitions. Word has length 217 [2020-09-24 16:59:35,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:59:35,756 INFO L479 AbstractCegarLoop]: Abstraction has 422 states and 477 transitions. [2020-09-24 16:59:35,757 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 16:59:35,757 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 477 transitions. [2020-09-24 16:59:35,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-09-24 16:59:35,760 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:59:35,760 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:59:35,760 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 16:59:35,761 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:59:35,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:59:35,761 INFO L82 PathProgramCache]: Analyzing trace with hash -243932891, now seen corresponding path program 1 times [2020-09-24 16:59:35,761 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:59:35,762 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [178863399] [2020-09-24 16:59:35,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:59:35,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:35,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:36,515 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:36,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-09-24 16:59:36,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:36,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 698 [2020-09-24 16:59:36,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:36,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:59:36,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 203 [2020-09-24 16:59:36,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 16:59:36,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:36,831 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:59:36,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:59:36,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:36,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:36,948 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:36,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 16:59:36,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:36,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-24 16:59:36,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:36,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:36,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:36,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:36,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:36,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 16:59:36,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:36,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:37,001 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:37,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:59:37,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:37,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:59:37,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:37,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:37,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:37,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:37,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:37,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 16:59:37,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:37,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:37,010 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:37,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:59:37,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:37,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:59:37,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:37,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:37,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:37,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:37,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:37,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 16:59:37,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:37,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:37,019 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:37,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:37,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:37,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:59:37,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:37,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:37,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:37,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:37,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:37,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 16:59:37,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:37,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:37,026 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:37,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:59:37,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:37,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:59:37,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:37,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:37,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:37,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:37,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:37,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 16:59:37,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:37,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:37,046 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:37,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:59:37,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:37,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:37,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:37,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:37,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:37,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:37,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:37,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 16:59:37,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:37,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:37,067 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:37,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:59:37,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:37,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:59:37,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:37,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:37,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:37,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:37,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:37,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 16:59:37,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:37,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:37,076 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:37,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 16:59:37,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:37,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:59:37,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:37,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:37,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:37,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:37,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:37,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:59:37,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:37,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:37,084 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:37,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:37,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:37,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:37,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:37,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:37,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:37,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:37,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:37,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 16:59:37,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:37,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:37,176 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:37,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 16:59:37,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:37,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-24 16:59:37,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:37,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:59:37,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-24 16:59:37,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 16:59:37,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:37,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:59:37,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:37,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:37,245 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:37,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 16:59:37,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:37,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-24 16:59:37,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:37,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:59:37,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 16:59:37,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 16:59:37,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:37,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:59:37,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:37,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:37,309 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:37,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 16:59:37,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:37,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-24 16:59:37,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:37,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:59:37,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 16:59:37,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 16:59:37,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:37,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:59:37,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:37,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:37,350 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:37,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 16:59:37,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:37,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-24 16:59:37,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:37,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:59:37,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 16:59:37,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 16:59:37,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:37,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 16:59:37,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:37,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:37,385 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:37,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:59:37,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:37,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 16:59:37,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:37,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 16:59:37,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:37,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:59:37,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:37,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 16:59:37,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:37,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:37,417 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:37,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:59:37,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:37,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:59:37,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:37,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:37,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 16:59:37,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:37,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:37,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-09-24 16:59:37,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:37,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:37,427 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:37,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:37,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:37,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:37,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:37,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:37,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:59:37,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:37,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:37,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-24 16:59:37,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:37,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:37,433 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:37,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:37,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:37,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:37,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:37,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:37,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:59:37,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:37,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:37,514 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 16:59:37,515 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [178863399] [2020-09-24 16:59:37,515 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:59:37,515 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 16:59:37,516 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095305233] [2020-09-24 16:59:37,516 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 16:59:37,517 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:59:37,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 16:59:37,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-24 16:59:37,517 INFO L87 Difference]: Start difference. First operand 422 states and 477 transitions. Second operand 10 states. [2020-09-24 16:59:39,118 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:59:39,429 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 16:59:39,745 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:59:40,089 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 16:59:40,381 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:59:41,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:59:41,649 INFO L93 Difference]: Finished difference Result 889 states and 1115 transitions. [2020-09-24 16:59:41,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 16:59:41,650 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 217 [2020-09-24 16:59:41,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:59:41,663 INFO L225 Difference]: With dead ends: 889 [2020-09-24 16:59:41,663 INFO L226 Difference]: Without dead ends: 582 [2020-09-24 16:59:41,667 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-24 16:59:41,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2020-09-24 16:59:41,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 428. [2020-09-24 16:59:41,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 428 states. [2020-09-24 16:59:41,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 483 transitions. [2020-09-24 16:59:41,767 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 483 transitions. Word has length 217 [2020-09-24 16:59:41,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:59:41,768 INFO L479 AbstractCegarLoop]: Abstraction has 428 states and 483 transitions. [2020-09-24 16:59:41,768 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 16:59:41,769 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 483 transitions. [2020-09-24 16:59:41,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-09-24 16:59:41,772 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:59:41,772 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:59:41,773 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 16:59:41,773 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:59:41,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:59:41,773 INFO L82 PathProgramCache]: Analyzing trace with hash -322289805, now seen corresponding path program 1 times [2020-09-24 16:59:41,774 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:59:41,774 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [29447208] [2020-09-24 16:59:41,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:59:41,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:41,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:41,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:45,470 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:45,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-09-24 16:59:45,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 16:59:45,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3646 [2020-09-24 16:59:45,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:45,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:45,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-24 16:59:45,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 16:59:45,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:45,787 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:59:45,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:59:45,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:45,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:45,916 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:45,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 16:59:45,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:45,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-09-24 16:59:45,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:45,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:45,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:45,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:45,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:45,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 16:59:45,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:45,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:45,962 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:45,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:59:45,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:45,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:45,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:45,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:45,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:45,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:45,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:45,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 16:59:45,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:45,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:45,970 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:45,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:59:45,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:45,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:45,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:45,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:45,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:45,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:45,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:45,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 16:59:45,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:45,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:45,978 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:45,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:45,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:45,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:59:45,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:45,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:45,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:45,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:45,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:45,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 16:59:45,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:45,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:45,988 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:45,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:59:45,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:45,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:59:45,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:45,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:45,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:45,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:45,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:46,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 16:59:46,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:46,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:46,006 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:46,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:59:46,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:46,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:46,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:46,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:46,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:46,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:46,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:46,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 16:59:46,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:46,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:46,018 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:46,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 16:59:46,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:46,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:59:46,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:46,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:46,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 16:59:46,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:46,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:46,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:59:46,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:46,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:46,027 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:46,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:46,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:46,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:46,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:46,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:46,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:46,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:46,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:46,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 16:59:46,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:46,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:46,069 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:46,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 16:59:46,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:46,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 16:59:46,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:46,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:46,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-09-24 16:59:46,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:46,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:46,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:59:46,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:46,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:46,091 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:46,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 16:59:46,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:46,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 16:59:46,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:46,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:46,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:46,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:46,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:46,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:59:46,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:46,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:46,114 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:46,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 16:59:46,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:46,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 16:59:46,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:46,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:46,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:46,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:46,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:46,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:59:46,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:46,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:46,131 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:46,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 16:59:46,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:46,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 16:59:46,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:46,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:46,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:46,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:46,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:46,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 16:59:46,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:46,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:46,142 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:46,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:59:46,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:46,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:59:46,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:46,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:46,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:46,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:46,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 16:59:46,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 16:59:46,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:46,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:46,155 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:46,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:59:46,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:46,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:59:46,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:46,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:46,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:46,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:46,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:46,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 16:59:46,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:46,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:46,175 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:46,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:46,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:46,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:59:46,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:46,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:46,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:59:46,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:46,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:46,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2020-09-24 16:59:46,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:46,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:46,184 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:46,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:46,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:46,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:46,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:46,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:46,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:59:46,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:46,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:46,291 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 16:59:46,291 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [29447208] [2020-09-24 16:59:46,292 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:59:46,292 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 16:59:46,293 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077409095] [2020-09-24 16:59:46,293 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 16:59:46,294 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:59:46,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 16:59:46,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 16:59:46,295 INFO L87 Difference]: Start difference. First operand 428 states and 483 transitions. Second operand 6 states. [2020-09-24 16:59:47,179 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:59:48,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:59:48,407 INFO L93 Difference]: Finished difference Result 718 states and 825 transitions. [2020-09-24 16:59:48,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 16:59:48,407 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 204 [2020-09-24 16:59:48,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:59:48,410 INFO L225 Difference]: With dead ends: 718 [2020-09-24 16:59:48,411 INFO L226 Difference]: Without dead ends: 473 [2020-09-24 16:59:48,412 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-09-24 16:59:48,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2020-09-24 16:59:48,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 408. [2020-09-24 16:59:48,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 408 states. [2020-09-24 16:59:48,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 449 transitions. [2020-09-24 16:59:48,473 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 449 transitions. Word has length 204 [2020-09-24 16:59:48,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:59:48,473 INFO L479 AbstractCegarLoop]: Abstraction has 408 states and 449 transitions. [2020-09-24 16:59:48,473 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 16:59:48,473 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 449 transitions. [2020-09-24 16:59:48,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-09-24 16:59:48,476 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:59:48,477 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:59:48,477 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 16:59:48,477 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:59:48,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:59:48,477 INFO L82 PathProgramCache]: Analyzing trace with hash 1895973026, now seen corresponding path program 1 times [2020-09-24 16:59:48,478 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:59:48,478 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [825532392] [2020-09-24 16:59:48,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:59:48,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:48,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:49,765 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:49,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-09-24 16:59:49,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:49,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1240 [2020-09-24 16:59:49,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:49,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 16:59:49,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 16:59:49,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-09-24 16:59:49,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:50,102 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:59:50,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:59:50,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:50,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:50,313 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:50,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 16:59:50,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:50,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 181 [2020-09-24 16:59:50,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:50,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:50,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:50,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 16:59:50,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:50,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 16:59:50,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:50,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:50,355 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:50,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:59:50,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:50,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:59:50,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:50,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:50,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:50,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:59:50,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:50,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 16:59:50,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:50,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:50,361 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:50,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:59:50,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:50,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:50,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:50,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:50,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:50,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:59:50,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:50,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 16:59:50,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:50,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:50,372 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:50,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:50,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:50,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 16:59:50,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:50,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:50,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:50,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:59:50,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:50,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 16:59:50,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:50,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:50,382 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:50,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:59:50,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:50,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:50,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:50,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:50,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:50,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:59:50,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:50,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 16:59:50,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:50,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:50,406 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:50,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:59:50,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:50,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:59:50,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:50,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:50,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:50,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 16:59:50,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:50,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 16:59:50,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:50,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:50,421 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:50,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:59:50,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:50,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:59:50,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:50,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:50,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:50,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 16:59:50,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:50,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 16:59:50,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:50,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:50,430 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:50,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 16:59:50,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:50,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:59:50,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:50,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:50,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:50,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 16:59:50,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:50,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:59:50,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:50,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:50,436 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:50,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:50,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:50,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:59:50,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:50,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:50,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:50,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:50,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:50,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 16:59:50,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:50,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:50,478 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:50,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 16:59:50,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:50,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 16:59:50,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:50,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:50,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-24 16:59:50,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 16:59:50,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:50,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:59:50,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:50,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:50,517 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:50,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 16:59:50,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:50,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 16:59:50,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:50,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:50,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:50,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 16:59:50,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:50,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:59:50,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:50,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:50,545 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:50,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 16:59:50,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:50,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 16:59:50,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:50,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:50,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:50,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 16:59:50,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:50,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:59:50,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:50,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:50,565 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:50,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 16:59:50,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:50,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 16:59:50,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:50,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:50,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:50,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 16:59:50,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:50,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 16:59:50,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:50,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:50,575 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:50,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:59:50,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:50,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:50,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:50,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:50,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:50,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 16:59:50,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:50,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 16:59:50,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:50,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:50,586 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:50,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:59:50,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:50,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:59:50,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:50,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:50,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:50,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 16:59:50,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:50,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-09-24 16:59:50,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:50,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:50,601 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:50,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:50,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:50,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:59:50,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:50,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:50,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:59:50,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:50,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:50,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-24 16:59:50,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:50,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:50,609 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:50,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:50,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:50,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:50,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:50,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:50,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:59:50,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:50,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:50,675 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 16:59:50,676 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [825532392] [2020-09-24 16:59:50,676 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:59:50,676 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 16:59:50,677 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744233697] [2020-09-24 16:59:50,677 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 16:59:50,677 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:59:50,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 16:59:50,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-24 16:59:50,678 INFO L87 Difference]: Start difference. First operand 408 states and 449 transitions. Second operand 8 states. [2020-09-24 16:59:51,192 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 189