/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 interpolation-heuristic=FIRST --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_spec4_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 15:49:42,786 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 15:49:42,789 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 15:49:42,815 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 15:49:42,816 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 15:49:42,817 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 15:49:42,818 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 15:49:42,820 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 15:49:42,822 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 15:49:42,823 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 15:49:42,824 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 15:49:42,825 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 15:49:42,825 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 15:49:42,826 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 15:49:42,827 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 15:49:42,828 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 15:49:42,829 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 15:49:42,830 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 15:49:42,832 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 15:49:42,834 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 15:49:42,836 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 15:49:42,837 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 15:49:42,838 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 15:49:42,839 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 15:49:42,842 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 15:49:42,842 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 15:49:42,842 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 15:49:42,843 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 15:49:42,844 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 15:49:42,845 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 15:49:42,845 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 15:49:42,846 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 15:49:42,847 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 15:49:42,848 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 15:49:42,849 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 15:49:42,849 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 15:49:42,850 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 15:49:42,850 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 15:49:42,850 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 15:49:42,851 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 15:49:42,852 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 15:49:42,853 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 15:49:42,878 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 15:49:42,878 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 15:49:42,880 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 15:49:42,880 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 15:49:42,880 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 15:49:42,881 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 15:49:42,881 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 15:49:42,881 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 15:49:42,881 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 15:49:42,881 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 15:49:42,882 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 15:49:42,882 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 15:49:42,882 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 15:49:42,882 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 15:49:42,882 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 15:49:42,883 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 15:49:42,883 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 15:49:42,883 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 15:49:42,883 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 15:49:42,884 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 15:49:42,884 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 15:49:42,884 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 15:49:42,884 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 15:49:42,884 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 15:49:42,885 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 15:49:42,885 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 15:49:42,885 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 15:49:42,885 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 15:49:42,885 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 15:49:42,886 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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-24 15:49:43,338 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 15:49:43,367 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 15:49:43,374 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 15:49:43,376 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 15:49:43,378 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 15:49:43,379 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product34.cil.c [2020-09-24 15:49:43,455 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0fe6960de/943887e2f1ad4a5f865de0517182abdf/FLAG92420865a [2020-09-24 15:49:44,108 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 15:49:44,109 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product34.cil.c [2020-09-24 15:49:44,124 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0fe6960de/943887e2f1ad4a5f865de0517182abdf/FLAG92420865a [2020-09-24 15:49:44,316 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0fe6960de/943887e2f1ad4a5f865de0517182abdf [2020-09-24 15:49:44,331 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 15:49:44,336 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 15:49:44,337 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 15:49:44,337 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 15:49:44,341 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 15:49:44,343 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:49:44" (1/1) ... [2020-09-24 15:49:44,347 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26d3ce57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:49:44, skipping insertion in model container [2020-09-24 15:49:44,348 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:49:44" (1/1) ... [2020-09-24 15:49:44,357 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 15:49:44,433 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 15:49:44,778 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:49:44,883 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 15:49:45,020 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:49:45,065 INFO L208 MainTranslator]: Completed translation [2020-09-24 15:49:45,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:49:45 WrapperNode [2020-09-24 15:49:45,066 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 15:49:45,067 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 15:49:45,067 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 15:49:45,067 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 15:49:45,082 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:49:45" (1/1) ... [2020-09-24 15:49:45,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:49:45" (1/1) ... [2020-09-24 15:49:45,104 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:49:45" (1/1) ... [2020-09-24 15:49:45,105 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:49:45" (1/1) ... [2020-09-24 15:49:45,140 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:49:45" (1/1) ... [2020-09-24 15:49:45,151 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:49:45" (1/1) ... [2020-09-24 15:49:45,156 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:49:45" (1/1) ... [2020-09-24 15:49:45,164 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 15:49:45,165 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 15:49:45,165 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 15:49:45,165 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 15:49:45,166 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:49:45" (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 15:49:45,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 15:49:45,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 15:49:45,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 15:49:45,253 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-24 15:49:45,253 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 15:49:45,253 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 15:49:45,253 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 15:49:45,253 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 15:49:45,254 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 15:49:45,254 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 15:49:45,254 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 15:49:45,254 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 15:49:45,254 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 15:49:45,255 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 15:49:45,255 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 15:49:45,255 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 15:49:45,255 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 15:49:45,255 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 15:49:45,256 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 15:49:45,256 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 15:49:45,256 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 15:49:45,256 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 15:49:45,256 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 15:49:45,257 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 15:49:45,257 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 15:49:45,257 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 15:49:45,257 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 15:49:45,257 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 15:49:45,257 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 15:49:45,258 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 15:49:45,258 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 15:49:45,258 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 15:49:45,258 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 15:49:45,258 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 15:49:45,258 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 15:49:45,259 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 15:49:45,259 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 15:49:45,259 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 15:49:45,259 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 15:49:45,259 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 15:49:45,260 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 15:49:45,260 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 15:49:45,260 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 15:49:45,260 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 15:49:45,260 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-24 15:49:45,260 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 15:49:45,261 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 15:49:45,261 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 15:49:45,261 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 15:49:45,261 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 15:49:45,261 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 15:49:45,261 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 15:49:45,262 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 15:49:45,262 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 15:49:45,262 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 15:49:45,262 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 15:49:45,262 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 15:49:45,262 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 15:49:45,263 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 15:49:45,263 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 15:49:45,263 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 15:49:45,263 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 15:49:45,263 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 15:49:45,263 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 15:49:45,264 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 15:49:45,264 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 15:49:45,264 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 15:49:45,264 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 15:49:45,264 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 15:49:45,264 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 15:49:45,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 15:49:45,265 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 15:49:45,265 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 15:49:45,265 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 15:49:45,265 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 15:49:45,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 15:49:45,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 15:49:45,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 15:49:45,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 15:49:45,266 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 15:49:45,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 15:49:45,266 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 15:49:45,266 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 15:49:45,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 15:49:45,267 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 15:49:45,267 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 15:49:45,267 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 15:49:45,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 15:49:45,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 15:49:45,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 15:49:46,398 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 15:49:46,399 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 15:49:46,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:49:46 BoogieIcfgContainer [2020-09-24 15:49:46,406 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 15:49:46,407 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 15:49:46,408 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 15:49:46,411 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 15:49:46,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 03:49:44" (1/3) ... [2020-09-24 15:49:46,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a456edf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:49:46, skipping insertion in model container [2020-09-24 15:49:46,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:49:45" (2/3) ... [2020-09-24 15:49:46,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a456edf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:49:46, skipping insertion in model container [2020-09-24 15:49:46,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:49:46" (3/3) ... [2020-09-24 15:49:46,416 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product34.cil.c [2020-09-24 15:49:46,428 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 15:49:46,441 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 15:49:46,466 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 15:49:46,502 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 15:49:46,502 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 15:49:46,502 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 15:49:46,502 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 15:49:46,503 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 15:49:46,503 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 15:49:46,503 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 15:49:46,503 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 15:49:46,533 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states. [2020-09-24 15:49:46,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 15:49:46,551 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:49:46,553 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:49:46,554 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:49:46,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:49:46,563 INFO L82 PathProgramCache]: Analyzing trace with hash -769806534, now seen corresponding path program 1 times [2020-09-24 15:49:46,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:49:46,577 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [88678940] [2020-09-24 15:49:46,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:49:46,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:46,955 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:46,956 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:46,956 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:46,957 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:46,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 15:49:46,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:46,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 15:49:46,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:46,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:49:46,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 15:49:46,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:49:46,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:49:47,417 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:49:47,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:49:47,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:47,447 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:47,448 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:47,448 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:47,448 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:47,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:49:47,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:47,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:49:47,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:47,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:49:47,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:47,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:49:47,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:49:47,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:49:47,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:47,611 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:47,611 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:47,612 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:47,612 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:47,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:49:47,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:47,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:47,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:47,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:49:47,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:47,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:49:47,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:47,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:49:47,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:47,627 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:47,627 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:47,628 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:47,628 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:47,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:49:47,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:47,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:47,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:47,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:49:47,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:47,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:49:47,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:47,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:49:47,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:47,635 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:47,635 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:47,636 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:47,636 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:47,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:49:47,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:47,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:47,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:47,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:49:47,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:47,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:49:47,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:47,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:49:47,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:47,656 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:47,656 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:47,657 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:47,658 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:47,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:49:47,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:47,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:49:47,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:47,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:49:47,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:47,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:49:47,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:47,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 15:49:47,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:47,666 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:47,666 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:47,666 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:47,667 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:47,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:49:47,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:47,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:47,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:47,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:49:47,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:49:47,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:49:47,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:47,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 15:49:47,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:47,676 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:47,676 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:47,676 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:47,677 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:47,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:49:47,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:47,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:47,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:47,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:49:47,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:49:47,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:49:47,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:49:47,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:49:47,711 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [88678940] [2020-09-24 15:49:47,713 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:49:47,714 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 15:49:47,715 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454638520] [2020-09-24 15:49:47,724 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 15:49:47,724 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:49:47,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 15:49:47,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 15:49:47,745 INFO L87 Difference]: Start difference. First operand 282 states. Second operand 3 states. [2020-09-24 15:49:49,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:49:49,029 INFO L93 Difference]: Finished difference Result 428 states and 511 transitions. [2020-09-24 15:49:49,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 15:49:49,032 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-24 15:49:49,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:49:49,053 INFO L225 Difference]: With dead ends: 428 [2020-09-24 15:49:49,053 INFO L226 Difference]: Without dead ends: 271 [2020-09-24 15:49:49,059 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 15:49:49,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-09-24 15:49:49,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 231. [2020-09-24 15:49:49,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2020-09-24 15:49:49,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 249 transitions. [2020-09-24 15:49:49,159 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 249 transitions. Word has length 142 [2020-09-24 15:49:49,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:49:49,160 INFO L479 AbstractCegarLoop]: Abstraction has 231 states and 249 transitions. [2020-09-24 15:49:49,161 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 15:49:49,161 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 249 transitions. [2020-09-24 15:49:49,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-24 15:49:49,166 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:49:49,166 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:49:49,166 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 15:49:49,167 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:49:49,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:49:49,167 INFO L82 PathProgramCache]: Analyzing trace with hash -1944569918, now seen corresponding path program 1 times [2020-09-24 15:49:49,167 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:49:49,168 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [138083552] [2020-09-24 15:49:49,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:49:49,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:49,249 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:49,249 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:49,249 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:49,249 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:49,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-24 15:49:49,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:49,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:49:49,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:49,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:49:49,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 15:49:49,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 15:49:49,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:49,578 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:49:49,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:49:49,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:49,591 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:49,592 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:49,592 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:49,592 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:49,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:49:49,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:49,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:49,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:49,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:49:49,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:49,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:49:49,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:49,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:49:49,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:49,638 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:49,638 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:49,638 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:49,638 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:49,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:49:49,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:49,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:49,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:49,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:49:49,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:49,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:49:49,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:49,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:49:49,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:49,642 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:49,643 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:49,643 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:49,643 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:49,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:49:49,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:49,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:49,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:49,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:49:49,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:49,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:49:49,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:49,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:49:49,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:49,647 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:49,647 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:49,648 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:49,648 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:49,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:49:49,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:49,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:49,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:49,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:49:49,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:49,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:49:49,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:49,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:49:49,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:49,653 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:49,654 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:49,654 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:49,654 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:49,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:49:49,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:49,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:49,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:49,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:49:49,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:49,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:49:49,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:49,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 15:49:49,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:49,659 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:49,659 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:49,659 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:49,659 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:49,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:49:49,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:49,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:49,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:49,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:49:49,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:49:49,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:49:49,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:49,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 15:49:49,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:49,664 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:49,665 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:49,665 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:49,665 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:49,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:49:49,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:49,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:49,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:49,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:49:49,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:49:49,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:49:49,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:49,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:49:49,697 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [138083552] [2020-09-24 15:49:49,698 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:49:49,698 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 15:49:49,698 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233453357] [2020-09-24 15:49:49,701 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 15:49:49,701 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:49:49,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 15:49:49,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 15:49:49,702 INFO L87 Difference]: Start difference. First operand 231 states and 249 transitions. Second operand 4 states. [2020-09-24 15:49:50,348 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:49:51,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:49:51,143 INFO L93 Difference]: Finished difference Result 341 states and 382 transitions. [2020-09-24 15:49:51,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 15:49:51,144 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-24 15:49:51,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:49:51,148 INFO L225 Difference]: With dead ends: 341 [2020-09-24 15:49:51,148 INFO L226 Difference]: Without dead ends: 254 [2020-09-24 15:49:51,150 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 15:49:51,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-09-24 15:49:51,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 221. [2020-09-24 15:49:51,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2020-09-24 15:49:51,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 236 transitions. [2020-09-24 15:49:51,186 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 236 transitions. Word has length 143 [2020-09-24 15:49:51,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:49:51,186 INFO L479 AbstractCegarLoop]: Abstraction has 221 states and 236 transitions. [2020-09-24 15:49:51,187 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 15:49:51,187 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 236 transitions. [2020-09-24 15:49:51,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-24 15:49:51,192 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:49:51,193 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:49:51,193 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 15:49:51,193 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:49:51,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:49:51,196 INFO L82 PathProgramCache]: Analyzing trace with hash -2135572125, now seen corresponding path program 1 times [2020-09-24 15:49:51,196 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:49:51,196 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [482173910] [2020-09-24 15:49:51,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:49:51,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:51,297 FATAL L256 erpolLogProxyWrapper]: Difference in size: 5 [2020-09-24 15:49:51,297 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -42 [2020-09-24 15:49:51,297 FATAL L256 erpolLogProxyWrapper]: Difference in width: 42 [2020-09-24 15:49:51,298 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:51,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 15:49:51,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:51,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:49:51,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:51,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:49:51,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-24 15:49:51,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:49:51,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:51,618 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:49:51,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:49:51,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:51,641 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:51,641 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:51,642 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:51,642 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:51,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:49:51,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:51,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:51,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:51,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:49:51,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:51,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:49:51,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:49:51,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:49:51,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:51,715 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:51,715 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:51,716 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:51,716 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:51,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:49:51,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:51,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:51,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:51,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:49:51,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:51,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:49:51,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:49:51,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:49:51,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:51,723 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:51,723 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:51,723 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:51,724 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:51,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:49:51,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:51,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:51,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:51,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:49:51,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:51,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:49:51,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:49:51,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:49:51,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:51,730 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:51,730 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:51,731 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:51,731 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:51,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:49:51,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:51,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:51,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:51,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:49:51,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:51,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:49:51,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 15:49:51,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:49:51,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:51,739 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:51,739 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:51,739 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:51,741 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:51,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:49:51,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:51,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:51,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:51,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:49:51,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:51,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:49:51,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:49:51,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 15:49:51,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:51,764 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:51,764 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:51,765 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:51,765 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:51,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:49:51,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:51,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:49:51,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:51,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:49:51,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:51,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 15:49:51,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:49:51,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 15:49:51,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:51,775 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:51,775 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:51,775 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:51,776 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:51,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:49:51,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:51,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:51,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:51,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:49:51,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:49:51,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:49:51,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:49:51,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 15:49:51,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:51,788 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:51,789 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:51,789 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:51,790 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:51,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:49:51,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:51,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:51,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:51,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:49:51,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:49:51,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:49:51,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:49:51,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:49:51,899 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [482173910] [2020-09-24 15:49:51,899 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:49:51,900 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 15:49:51,901 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505971532] [2020-09-24 15:49:51,904 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 15:49:51,904 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:49:51,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 15:49:51,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 15:49:51,905 INFO L87 Difference]: Start difference. First operand 221 states and 236 transitions. Second operand 5 states. [2020-09-24 15:49:52,601 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:49:53,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:49:53,732 INFO L93 Difference]: Finished difference Result 387 states and 444 transitions. [2020-09-24 15:49:53,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 15:49:53,732 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-24 15:49:53,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:49:53,738 INFO L225 Difference]: With dead ends: 387 [2020-09-24 15:49:53,743 INFO L226 Difference]: Without dead ends: 276 [2020-09-24 15:49:53,744 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 15:49:53,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2020-09-24 15:49:53,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 221. [2020-09-24 15:49:53,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2020-09-24 15:49:53,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 235 transitions. [2020-09-24 15:49:53,801 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 235 transitions. Word has length 156 [2020-09-24 15:49:53,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:49:53,802 INFO L479 AbstractCegarLoop]: Abstraction has 221 states and 235 transitions. [2020-09-24 15:49:53,802 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 15:49:53,802 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 235 transitions. [2020-09-24 15:49:53,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-09-24 15:49:53,805 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:49:53,805 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:49:53,806 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 15:49:53,806 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:49:53,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:49:53,806 INFO L82 PathProgramCache]: Analyzing trace with hash -653127714, now seen corresponding path program 1 times [2020-09-24 15:49:53,807 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:49:53,807 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1785698962] [2020-09-24 15:49:53,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:49:53,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:53,902 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:53,903 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:53,903 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:53,903 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:53,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-24 15:49:53,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:53,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-24 15:49:53,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:53,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 15:49:53,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 15:49:53,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-24 15:49:53,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:54,206 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:49:54,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:49:54,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:54,246 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:54,247 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:54,247 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:54,247 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:54,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:49:54,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:54,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:54,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:54,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:49:54,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:54,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 15:49:54,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:54,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:49:54,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:54,294 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:54,294 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:54,295 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:54,295 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:54,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:49:54,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:54,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:54,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:54,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:49:54,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:54,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:49:54,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:54,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:49:54,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:54,300 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:54,300 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:54,300 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:54,300 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:54,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:49:54,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:54,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:54,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:54,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:49:54,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:54,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:49:54,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:54,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:49:54,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:54,306 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:54,306 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:54,306 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:54,306 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:54,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:49:54,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:54,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:54,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:54,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:49:54,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:54,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:49:54,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:54,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:49:54,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:54,313 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:54,313 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:54,313 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:54,313 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:54,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:49:54,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:54,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:54,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:54,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:49:54,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:54,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:49:54,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:54,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 15:49:54,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:54,326 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:54,326 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:54,326 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:54,326 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:54,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:49:54,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:54,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:54,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:54,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:49:54,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:54,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 15:49:54,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:54,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 15:49:54,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:54,343 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:54,344 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:54,344 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:54,344 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:54,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 15:49:54,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:54,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:49:54,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:54,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 15:49:54,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 15:49:54,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 15:49:54,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:54,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:49:54,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:54,360 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:54,360 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:54,360 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:54,360 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:54,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:49:54,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:54,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:54,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:54,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:49:54,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:54,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:49:54,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:54,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 15:49:54,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:54,365 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:54,365 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:54,365 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:54,366 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:54,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:49:54,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:54,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:54,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:54,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:49:54,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:49:54,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:49:54,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:54,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-24 15:49:54,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:54,370 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:54,370 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:54,370 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:54,371 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:54,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:49:54,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:54,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:54,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:54,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:49:54,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:49:54,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:49:54,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:54,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:49:54,403 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1785698962] [2020-09-24 15:49:54,403 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:49:54,404 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 15:49:54,404 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606434222] [2020-09-24 15:49:54,404 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 15:49:54,405 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:49:54,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 15:49:54,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-24 15:49:54,405 INFO L87 Difference]: Start difference. First operand 221 states and 235 transitions. Second operand 7 states. [2020-09-24 15:49:54,984 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:49:56,510 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:49:57,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:49:57,160 INFO L93 Difference]: Finished difference Result 558 states and 661 transitions. [2020-09-24 15:49:57,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 15:49:57,161 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 164 [2020-09-24 15:49:57,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:49:57,167 INFO L225 Difference]: With dead ends: 558 [2020-09-24 15:49:57,167 INFO L226 Difference]: Without dead ends: 447 [2020-09-24 15:49:57,168 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-09-24 15:49:57,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2020-09-24 15:49:57,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 320. [2020-09-24 15:49:57,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 320 states. [2020-09-24 15:49:57,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 344 transitions. [2020-09-24 15:49:57,222 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 344 transitions. Word has length 164 [2020-09-24 15:49:57,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:49:57,222 INFO L479 AbstractCegarLoop]: Abstraction has 320 states and 344 transitions. [2020-09-24 15:49:57,223 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 15:49:57,223 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 344 transitions. [2020-09-24 15:49:57,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-09-24 15:49:57,225 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:49:57,226 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:49:57,226 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 15:49:57,226 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:49:57,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:49:57,227 INFO L82 PathProgramCache]: Analyzing trace with hash -1981324929, now seen corresponding path program 1 times [2020-09-24 15:49:57,227 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:49:57,227 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [691486781] [2020-09-24 15:49:57,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:49:57,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:57,323 FATAL L256 erpolLogProxyWrapper]: Difference in size: 5 [2020-09-24 15:49:57,324 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:57,324 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:57,324 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:57,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 227 [2020-09-24 15:49:57,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:57,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 15:49:57,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:57,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 15:49:57,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 15:49:57,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-09-24 15:49:57,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:57,690 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:49:57,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:49:57,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:57,729 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:57,729 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:57,729 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:57,730 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:57,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:49:57,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:57,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:57,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:57,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:49:57,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:57,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 15:49:57,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:57,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:49:57,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:57,782 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:57,783 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:57,783 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:57,783 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:57,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:49:57,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:57,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:57,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:57,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:49:57,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:57,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:49:57,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:57,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:49:57,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:57,789 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:57,790 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:57,790 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:57,790 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:57,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:49:57,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:57,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:57,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:57,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:49:57,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:57,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:49:57,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:57,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:49:57,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:57,796 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:57,797 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:57,797 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:57,797 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:57,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:49:57,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:57,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:57,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:57,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:49:57,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:57,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:49:57,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:57,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:49:57,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:57,804 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:57,804 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:57,804 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:57,804 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:57,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:49:57,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:57,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:57,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:57,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:49:57,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:57,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:49:57,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:49:57,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 15:49:57,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:57,820 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:57,821 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:57,821 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:57,821 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:57,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:49:57,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:57,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:57,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:57,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:49:57,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:57,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 15:49:57,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:49:57,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 15:49:57,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:57,846 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:57,846 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:57,846 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:57,847 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:57,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 15:49:57,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:57,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:49:57,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:57,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:49:57,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:57,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-24 15:49:57,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:57,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:49:57,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:57,856 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:57,856 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:57,856 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:57,857 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:57,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 15:49:57,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:57,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:57,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:57,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:49:57,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:57,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:49:57,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:49:57,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:49:57,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:57,864 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:57,864 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:57,864 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:57,864 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:57,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:49:57,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:57,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:57,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:57,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:49:57,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:57,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:49:57,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:49:57,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 15:49:57,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:57,871 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:57,871 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:57,872 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:57,872 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:57,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:49:57,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:57,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:57,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:57,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:49:57,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:57,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:49:57,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:49:57,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-09-24 15:49:57,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:57,882 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:57,883 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:57,883 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:57,883 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:57,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:49:57,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:57,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:49:57,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:57,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:49:57,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:57,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:49:57,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:49:57,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-09-24 15:49:57,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:57,917 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:57,918 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:57,918 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:57,918 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:57,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:49:57,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:57,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:57,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:57,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:49:57,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:49:57,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:49:57,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:49:57,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:49:57,996 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [691486781] [2020-09-24 15:49:57,997 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:49:57,997 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 15:49:57,997 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314712791] [2020-09-24 15:49:57,998 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 15:49:57,998 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:49:57,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 15:49:57,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 15:49:57,999 INFO L87 Difference]: Start difference. First operand 320 states and 344 transitions. Second operand 10 states. [2020-09-24 15:49:58,570 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:50:00,239 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:50:00,543 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:50:00,863 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:50:01,155 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:50:01,453 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:50:01,748 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:50:02,119 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:50:03,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:50:03,422 INFO L93 Difference]: Finished difference Result 882 states and 1075 transitions. [2020-09-24 15:50:03,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-24 15:50:03,422 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 188 [2020-09-24 15:50:03,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:50:03,434 INFO L225 Difference]: With dead ends: 882 [2020-09-24 15:50:03,435 INFO L226 Difference]: Without dead ends: 672 [2020-09-24 15:50:03,436 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=134, Invalid=328, Unknown=0, NotChecked=0, Total=462 [2020-09-24 15:50:03,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2020-09-24 15:50:03,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 471. [2020-09-24 15:50:03,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 471 states. [2020-09-24 15:50:03,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 516 transitions. [2020-09-24 15:50:03,528 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 516 transitions. Word has length 188 [2020-09-24 15:50:03,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:50:03,528 INFO L479 AbstractCegarLoop]: Abstraction has 471 states and 516 transitions. [2020-09-24 15:50:03,529 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 15:50:03,529 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 516 transitions. [2020-09-24 15:50:03,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-09-24 15:50:03,532 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:50:03,532 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:50:03,532 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 15:50:03,532 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:50:03,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:50:03,533 INFO L82 PathProgramCache]: Analyzing trace with hash 1781660386, now seen corresponding path program 1 times [2020-09-24 15:50:03,533 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:50:03,533 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [614811922] [2020-09-24 15:50:03,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:50:03,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:03,651 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:03,652 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:03,652 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:03,652 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:03,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 234 [2020-09-24 15:50:03,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:03,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-24 15:50:03,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:03,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 15:50:03,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 15:50:03,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-09-24 15:50:03,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:04,043 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:50:04,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:50:04,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:04,084 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:04,085 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:04,085 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:04,085 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:04,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:50:04,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:04,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:04,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:04,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:50:04,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:04,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 15:50:04,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:04,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:50:04,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:04,127 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:04,127 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:04,128 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:04,128 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:04,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:50:04,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:04,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:04,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:04,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:50:04,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:04,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:50:04,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:04,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:50:04,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:04,132 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:04,132 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:04,133 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:04,133 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:04,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:50:04,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:04,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:04,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:04,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:50:04,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:04,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:50:04,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:04,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:50:04,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:04,138 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:04,138 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:04,138 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:04,138 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:04,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:50:04,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:04,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:04,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:04,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:50:04,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:04,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:50:04,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:04,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:50:04,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:04,144 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:04,144 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:04,145 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:04,145 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:04,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:50:04,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:04,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:04,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:04,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:50:04,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:04,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:50:04,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:04,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 15:50:04,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:04,161 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:04,162 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:04,162 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:04,162 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:04,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:50:04,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:04,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:04,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:04,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:50:04,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:04,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:50:04,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:04,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 15:50:04,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:04,177 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:04,177 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:04,178 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:04,178 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:04,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:50:04,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:04,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:04,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:04,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:50:04,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:04,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 15:50:04,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:04,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 15:50:04,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:04,198 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:04,199 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:04,199 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:04,199 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:04,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 15:50:04,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:04,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:04,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:04,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:50:04,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:04,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 15:50:04,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:04,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:50:04,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:04,209 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:04,209 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:04,209 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:04,210 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:04,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 15:50:04,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:04,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:04,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:04,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:50:04,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:04,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 15:50:04,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:04,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:50:04,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:04,215 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:04,216 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:04,216 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:04,216 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:04,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:50:04,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:04,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:04,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:04,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:04,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:04,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:04,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:04,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 15:50:04,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:04,221 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:04,221 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:04,221 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:04,222 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:04,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:50:04,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:04,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:04,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:04,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:50:04,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:04,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:50:04,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:04,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-24 15:50:04,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:04,227 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:04,227 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:04,228 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:04,228 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:04,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:50:04,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:04,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:04,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:04,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:50:04,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:04,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:50:04,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:04,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 15:50:04,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:04,236 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:04,236 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:04,236 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:04,237 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:04,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:50:04,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:04,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:50:04,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:04,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:50:04,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:04,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:50:04,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:04,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:50:04,352 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [614811922] [2020-09-24 15:50:04,353 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:50:04,354 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 15:50:04,354 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829256558] [2020-09-24 15:50:04,354 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 15:50:04,355 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:50:04,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 15:50:04,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 15:50:04,355 INFO L87 Difference]: Start difference. First operand 471 states and 516 transitions. Second operand 11 states. [2020-09-24 15:50:04,943 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:50:06,698 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:50:07,053 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:50:07,406 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 15:50:07,718 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:50:08,014 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:50:08,365 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:50:08,673 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:50:09,031 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:50:10,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:50:10,495 INFO L93 Difference]: Finished difference Result 678 states and 811 transitions. [2020-09-24 15:50:10,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-24 15:50:10,496 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 193 [2020-09-24 15:50:10,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:50:10,500 INFO L225 Difference]: With dead ends: 678 [2020-09-24 15:50:10,500 INFO L226 Difference]: Without dead ends: 675 [2020-09-24 15:50:10,501 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=261, Invalid=669, Unknown=0, NotChecked=0, Total=930 [2020-09-24 15:50:10,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2020-09-24 15:50:10,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 471. [2020-09-24 15:50:10,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 471 states. [2020-09-24 15:50:10,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 515 transitions. [2020-09-24 15:50:10,563 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 515 transitions. Word has length 193 [2020-09-24 15:50:10,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:50:10,564 INFO L479 AbstractCegarLoop]: Abstraction has 471 states and 515 transitions. [2020-09-24 15:50:10,564 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 15:50:10,564 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 515 transitions. [2020-09-24 15:50:10,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-24 15:50:10,567 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:50:10,567 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:50:10,567 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 15:50:10,567 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:50:10,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:50:10,568 INFO L82 PathProgramCache]: Analyzing trace with hash -1922265341, now seen corresponding path program 1 times [2020-09-24 15:50:10,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:50:10,568 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [53519307] [2020-09-24 15:50:10,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:50:10,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:10,628 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:10,628 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:10,628 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:10,628 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:10,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-24 15:50:10,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:10,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:50:10,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:10,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 15:50:10,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 185 [2020-09-24 15:50:10,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:50:10,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:10,963 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:50:10,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:50:10,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:10,975 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:10,975 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:10,975 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:10,976 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:10,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:50:10,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:10,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:10,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:10,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:10,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:10,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:10,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:11,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:50:11,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:11,017 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:11,017 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:11,017 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:11,018 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:11,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:50:11,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:11,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:11,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:11,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:11,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:11,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:11,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:50:11,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:50:11,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:11,023 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:11,023 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:11,023 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:11,024 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:11,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:50:11,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:11,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:11,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:11,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:11,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:11,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:11,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:50:11,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:50:11,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:11,029 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:11,029 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:11,029 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:11,030 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:11,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:50:11,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:11,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:11,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:11,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:11,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:11,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:11,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:50:11,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:50:11,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:11,035 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:11,036 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:11,036 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:11,036 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:11,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:50:11,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:11,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:11,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:11,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:11,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:11,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:11,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:50:11,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 15:50:11,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:11,052 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:11,052 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:11,052 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:11,053 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:11,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:50:11,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:11,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:11,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:11,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:11,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:11,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:11,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:50:11,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 15:50:11,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:11,068 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:11,069 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:11,069 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:11,069 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:11,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:50:11,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:11,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:11,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:11,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:11,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:11,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:11,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:50:11,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 15:50:11,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:11,094 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:11,094 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:11,095 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:11,095 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:11,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 15:50:11,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:11,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:50:11,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:11,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 15:50:11,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 15:50:11,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:50:11,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:50:11,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:50:11,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:11,136 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:11,136 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:11,137 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:11,137 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:11,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 15:50:11,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:11,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:50:11,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:11,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:50:11,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:11,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 15:50:11,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:50:11,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:50:11,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:11,191 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:11,192 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:11,192 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:11,193 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:11,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:50:11,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:11,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:11,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:11,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:11,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:11,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:11,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:50:11,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 15:50:11,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:11,200 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:11,200 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:11,200 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:11,201 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:11,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:50:11,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:11,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:11,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:11,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:11,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 15:50:11,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:11,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:50:11,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-24 15:50:11,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:11,207 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:11,207 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:11,208 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:11,208 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:11,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:50:11,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:11,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:11,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:11,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:11,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:50:11,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:11,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:50:11,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-24 15:50:11,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:11,213 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:11,214 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:11,214 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:11,214 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:11,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:50:11,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:11,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:11,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:11,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:11,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:50:11,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:11,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:50:11,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:50:11,280 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [53519307] [2020-09-24 15:50:11,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:50:11,280 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 15:50:11,281 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784682944] [2020-09-24 15:50:11,281 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 15:50:11,282 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:50:11,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 15:50:11,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 15:50:11,283 INFO L87 Difference]: Start difference. First operand 471 states and 515 transitions. Second operand 11 states. [2020-09-24 15:50:12,821 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:50:13,104 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:50:13,400 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:50:13,687 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:50:13,991 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:50:14,265 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:50:15,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:50:15,605 INFO L93 Difference]: Finished difference Result 1046 states and 1239 transitions. [2020-09-24 15:50:15,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 15:50:15,606 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 194 [2020-09-24 15:50:15,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:50:15,612 INFO L225 Difference]: With dead ends: 1046 [2020-09-24 15:50:15,612 INFO L226 Difference]: Without dead ends: 685 [2020-09-24 15:50:15,614 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-09-24 15:50:15,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2020-09-24 15:50:15,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 487. [2020-09-24 15:50:15,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 487 states. [2020-09-24 15:50:15,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 531 transitions. [2020-09-24 15:50:15,682 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 531 transitions. Word has length 194 [2020-09-24 15:50:15,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:50:15,683 INFO L479 AbstractCegarLoop]: Abstraction has 487 states and 531 transitions. [2020-09-24 15:50:15,683 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 15:50:15,683 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 531 transitions. [2020-09-24 15:50:15,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-24 15:50:15,687 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:50:15,687 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:50:15,687 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 15:50:15,688 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:50:15,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:50:15,688 INFO L82 PathProgramCache]: Analyzing trace with hash 950461091, now seen corresponding path program 1 times [2020-09-24 15:50:15,688 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:50:15,688 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1514878944] [2020-09-24 15:50:15,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:50:15,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:15,743 FATAL L256 erpolLogProxyWrapper]: Difference in size: 5 [2020-09-24 15:50:15,744 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -73 [2020-09-24 15:50:15,744 FATAL L256 erpolLogProxyWrapper]: Difference in width: 73 [2020-09-24 15:50:15,744 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:15,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-24 15:50:15,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:15,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:50:15,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:15,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:50:15,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-09-24 15:50:15,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:50:15,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:16,011 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:50:16,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:50:16,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:16,023 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:16,023 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:16,023 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:16,024 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:16,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:50:16,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:16,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:50:16,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:16,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:16,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:16,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:16,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:16,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:50:16,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:16,057 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:16,057 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:16,057 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:16,057 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:16,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:50:16,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:16,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:16,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:16,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:16,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:16,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:16,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:16,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:50:16,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:16,064 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:16,065 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:16,065 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:16,065 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:16,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:50:16,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:16,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:16,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:16,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:16,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:16,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:16,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:16,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:50:16,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:16,074 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:16,075 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:16,075 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:16,075 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:16,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:50:16,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:16,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:50:16,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:16,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:16,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:16,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:16,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:16,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:50:16,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:16,084 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:16,084 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:16,084 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:16,085 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:16,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:50:16,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:16,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:16,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:16,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:16,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:16,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:16,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:16,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 15:50:16,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:16,095 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:16,096 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:16,096 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:16,096 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:16,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:50:16,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:16,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:16,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:16,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:16,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:16,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:16,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:16,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 15:50:16,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:16,111 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:16,111 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:16,111 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:16,111 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:16,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:50:16,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:16,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:16,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:16,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:16,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:16,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:16,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:16,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 15:50:16,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:16,133 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:16,134 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:16,134 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:16,134 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:16,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 15:50:16,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:16,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 15:50:16,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:16,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:50:16,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 15:50:16,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:50:16,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:16,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:50:16,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:16,156 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:16,157 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:16,157 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:16,157 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:16,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 15:50:16,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:16,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 15:50:16,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:16,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:50:16,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:50:16,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:50:16,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:16,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:50:16,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:16,192 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:16,192 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:16,193 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:16,193 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:16,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:50:16,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:16,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:50:16,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:16,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 15:50:16,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:16,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:50:16,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:16,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 15:50:16,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:16,233 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:16,233 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:16,233 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:16,234 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:16,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:50:16,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:16,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:16,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:16,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:16,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 15:50:16,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:16,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:50:16,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-24 15:50:16,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:16,242 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:16,242 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:16,243 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:16,243 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:16,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:50:16,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:16,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:50:16,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:16,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:16,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:50:16,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:16,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:50:16,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-24 15:50:16,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:16,249 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:16,249 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:16,250 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:16,250 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:16,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:50:16,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:16,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:16,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:16,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:16,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:50:16,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:16,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:50:16,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:50:16,304 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1514878944] [2020-09-24 15:50:16,305 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:50:16,306 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 15:50:16,306 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551438607] [2020-09-24 15:50:16,307 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 15:50:16,307 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:50:16,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 15:50:16,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-24 15:50:16,308 INFO L87 Difference]: Start difference. First operand 487 states and 531 transitions. Second operand 10 states. [2020-09-24 15:50:17,543 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:50:17,830 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:50:18,100 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:50:18,398 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:50:18,686 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:50:19,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:50:19,886 INFO L93 Difference]: Finished difference Result 941 states and 1100 transitions. [2020-09-24 15:50:19,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 15:50:19,886 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 194 [2020-09-24 15:50:19,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:50:19,892 INFO L225 Difference]: With dead ends: 941 [2020-09-24 15:50:19,892 INFO L226 Difference]: Without dead ends: 564 [2020-09-24 15:50:19,894 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-24 15:50:19,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2020-09-24 15:50:19,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 418. [2020-09-24 15:50:19,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-09-24 15:50:19,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 447 transitions. [2020-09-24 15:50:19,959 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 447 transitions. Word has length 194 [2020-09-24 15:50:19,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:50:19,960 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 447 transitions. [2020-09-24 15:50:19,960 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 15:50:19,960 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 447 transitions. [2020-09-24 15:50:19,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-24 15:50:19,963 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:50:19,964 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:50:19,964 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 15:50:19,964 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:50:19,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:50:19,964 INFO L82 PathProgramCache]: Analyzing trace with hash 1158809862, now seen corresponding path program 1 times [2020-09-24 15:50:19,965 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:50:19,965 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1417734399] [2020-09-24 15:50:19,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:50:20,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:20,027 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:20,027 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:20,027 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:20,027 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:20,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-24 15:50:20,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:20,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:50:20,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:20,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 15:50:20,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 176 [2020-09-24 15:50:20,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-24 15:50:20,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:20,340 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:50:20,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:50:20,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:20,349 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:20,350 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:20,350 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:20,350 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:20,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:50:20,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:20,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:20,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:20,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:20,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:20,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:20,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:20,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:50:20,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:20,382 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:20,382 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:20,382 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:20,382 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:20,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:50:20,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:20,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:20,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:20,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:20,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:20,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:20,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:20,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:50:20,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:20,386 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:20,386 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:20,387 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:20,387 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:20,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:50:20,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:20,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:20,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:20,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:20,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:20,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:20,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:20,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:50:20,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:20,391 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:20,391 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:20,391 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:20,391 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:20,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:50:20,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:20,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:20,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:20,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:20,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:20,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:20,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:20,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:50:20,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:20,396 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:20,396 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:20,396 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:20,396 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:20,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:50:20,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:20,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-24 15:50:20,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:20,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:20,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:20,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:20,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:20,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 15:50:20,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:20,413 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:20,414 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:20,414 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:20,414 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:20,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:50:20,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:20,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:20,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:20,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:20,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:20,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:20,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:20,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 15:50:20,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:20,428 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:20,428 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:20,428 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:20,428 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:20,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:50:20,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:20,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:20,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:20,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:20,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:20,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:20,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:20,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 15:50:20,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:20,457 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:20,458 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:20,458 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:20,458 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:20,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 15:50:20,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:20,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:50:20,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:20,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:50:20,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:20,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 15:50:20,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:20,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:50:20,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:20,472 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:20,472 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:20,472 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:20,473 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:20,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 15:50:20,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:20,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:20,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:20,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:50:20,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:20,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:50:20,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 15:50:20,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:50:20,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:20,487 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:20,487 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:20,487 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:20,488 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:20,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:50:20,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:20,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:50:20,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:20,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:50:20,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:20,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 15:50:20,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:50:20,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 15:50:20,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:20,499 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:20,499 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:20,499 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:20,500 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:20,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:50:20,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:20,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:20,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:20,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:50:20,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:20,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 15:50:20,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:20,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-24 15:50:20,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:20,515 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:20,516 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:20,516 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:20,516 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:20,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:50:20,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:20,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:50:20,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:20,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:50:20,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:20,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:50:20,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:50:20,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-24 15:50:20,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:20,550 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:20,550 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:20,550 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:20,550 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:20,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:50:20,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:20,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:20,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:20,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:20,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:50:20,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:20,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:20,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:50:20,624 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1417734399] [2020-09-24 15:50:20,624 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:50:20,624 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 15:50:20,624 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958788137] [2020-09-24 15:50:20,625 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 15:50:20,625 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:50:20,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 15:50:20,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 15:50:20,626 INFO L87 Difference]: Start difference. First operand 418 states and 447 transitions. Second operand 11 states. [2020-09-24 15:50:21,973 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:50:22,724 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:50:23,028 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:50:23,368 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:50:23,680 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:50:24,009 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:50:24,334 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:50:24,677 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:50:24,996 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:50:26,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:50:26,745 INFO L93 Difference]: Finished difference Result 976 states and 1197 transitions. [2020-09-24 15:50:26,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-24 15:50:26,746 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 194 [2020-09-24 15:50:26,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:50:26,751 INFO L225 Difference]: With dead ends: 976 [2020-09-24 15:50:26,751 INFO L226 Difference]: Without dead ends: 750 [2020-09-24 15:50:26,757 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 32 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=248, Invalid=622, Unknown=0, NotChecked=0, Total=870 [2020-09-24 15:50:26,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2020-09-24 15:50:26,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 525. [2020-09-24 15:50:26,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 525 states. [2020-09-24 15:50:26,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 579 transitions. [2020-09-24 15:50:26,826 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 579 transitions. Word has length 194 [2020-09-24 15:50:26,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:50:26,826 INFO L479 AbstractCegarLoop]: Abstraction has 525 states and 579 transitions. [2020-09-24 15:50:26,827 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 15:50:26,827 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 579 transitions. [2020-09-24 15:50:26,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-09-24 15:50:26,831 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:50:26,831 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:50:26,831 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 15:50:26,832 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:50:26,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:50:26,832 INFO L82 PathProgramCache]: Analyzing trace with hash -1097275968, now seen corresponding path program 1 times [2020-09-24 15:50:26,832 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:50:26,833 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1308824047] [2020-09-24 15:50:26,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:50:26,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:26,906 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:26,906 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:26,906 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:26,906 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:26,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 300 [2020-09-24 15:50:26,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:26,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 15:50:26,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:26,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:50:26,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 176 [2020-09-24 15:50:26,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 15:50:26,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:27,229 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:50:27,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:50:27,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:27,242 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:27,242 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:27,242 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:27,242 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:27,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:50:27,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:27,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:50:27,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:27,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:27,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:27,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:27,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:27,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:50:27,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:27,277 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:27,277 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:27,278 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:27,278 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:27,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:50:27,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:27,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:27,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:27,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:27,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:27,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:27,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:27,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:50:27,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:27,284 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:27,284 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:27,284 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:27,284 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:27,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:50:27,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:27,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:27,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:27,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:27,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:27,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:27,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:27,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:50:27,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:27,288 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:27,288 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:27,288 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:27,288 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:27,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:50:27,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:27,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-24 15:50:27,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:27,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:27,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:27,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:27,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:27,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:50:27,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:27,293 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:27,294 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:27,294 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:27,294 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:27,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:50:27,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:27,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:27,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:27,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:27,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:27,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:27,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:50:27,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 15:50:27,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:27,307 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:27,307 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:27,307 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:27,308 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:27,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:50:27,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:27,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:27,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:27,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:27,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:27,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:27,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:27,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 15:50:27,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:27,367 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:27,368 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:27,368 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:27,368 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:27,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:50:27,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:27,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:27,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:27,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:27,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:27,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:27,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:27,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-24 15:50:27,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:27,403 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:27,403 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:27,403 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:27,404 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:27,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-24 15:50:27,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:27,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:50:27,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:27,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:50:27,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:27,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 15:50:27,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:50:27,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:50:27,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:27,439 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:27,439 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:27,439 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:27,440 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:27,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 15:50:27,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:27,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:50:27,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:27,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:50:27,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:27,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 15:50:27,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:50:27,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:50:27,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:27,469 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:27,470 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:27,470 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:27,470 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:27,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 15:50:27,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:27,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:50:27,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:27,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:50:27,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:27,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:50:27,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:50:27,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:50:27,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:27,485 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:27,485 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:27,485 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:27,486 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:27,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:50:27,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:27,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:50:27,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:27,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:50:27,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:27,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 15:50:27,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:50:27,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 15:50:27,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:27,501 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:27,502 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:27,502 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:27,503 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:27,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:50:27,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:27,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:50:27,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:27,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:50:27,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:27,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 15:50:27,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:50:27,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-24 15:50:27,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:27,513 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:27,514 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:27,514 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:27,514 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:27,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 15:50:27,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:27,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:27,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:27,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:50:27,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:27,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 15:50:27,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:50:27,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:50:27,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:27,526 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:27,526 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:27,527 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:27,527 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:27,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:50:27,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:27,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:50:27,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:27,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:27,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:27,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:27,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:50:27,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-09-24 15:50:27,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:27,540 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:27,540 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:27,541 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:27,541 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:27,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:50:27,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:27,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:50:27,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:27,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:50:27,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:27,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 15:50:27,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:27,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2020-09-24 15:50:27,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:27,554 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:27,554 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:27,554 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:27,555 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:27,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:50:27,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:27,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 15:50:27,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:27,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:50:27,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 15:50:27,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:50:27,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:50:27,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2020-09-24 15:50:27,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:27,609 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:27,609 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:27,610 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:27,611 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:27,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 15:50:27,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:27,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:50:27,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:27,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:50:27,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:27,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 15:50:27,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:50:27,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:50:27,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:27,621 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:27,621 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:27,622 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:27,622 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:27,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:50:27,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:27,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:27,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:27,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:27,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:27,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:27,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:50:27,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2020-09-24 15:50:27,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:27,632 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:27,633 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:27,633 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:27,633 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:27,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:50:27,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:27,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:50:27,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:27,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:50:27,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:27,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:50:27,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:27,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2020-09-24 15:50:27,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:27,678 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:27,678 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:27,679 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:27,679 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:27,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:50:27,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:27,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:27,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:27,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:27,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:50:27,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:27,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:50:27,771 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-24 15:50:27,772 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1308824047] [2020-09-24 15:50:27,777 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:50:27,778 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-24 15:50:27,778 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938937515] [2020-09-24 15:50:27,779 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-24 15:50:27,779 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:50:27,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-24 15:50:27,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2020-09-24 15:50:27,780 INFO L87 Difference]: Start difference. First operand 525 states and 579 transitions. Second operand 14 states. [2020-09-24 15:50:28,304 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:50:29,136 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:50:30,404 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:50:30,718 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:50:31,068 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:50:31,377 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:50:31,678 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:50:31,987 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:50:32,273 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:50:32,599 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:50:32,931 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:50:33,246 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:50:34,709 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:50:35,001 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:50:36,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:50:36,300 INFO L93 Difference]: Finished difference Result 1438 states and 1785 transitions. [2020-09-24 15:50:36,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-09-24 15:50:36,300 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 245 [2020-09-24 15:50:36,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:50:36,308 INFO L225 Difference]: With dead ends: 1438 [2020-09-24 15:50:36,308 INFO L226 Difference]: Without dead ends: 1105 [2020-09-24 15:50:36,310 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 51 SyntacticMatches, 5 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 440 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=499, Invalid=1307, Unknown=0, NotChecked=0, Total=1806 [2020-09-24 15:50:36,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1105 states. [2020-09-24 15:50:36,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1105 to 676. [2020-09-24 15:50:36,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 676 states. [2020-09-24 15:50:36,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 756 transitions. [2020-09-24 15:50:36,401 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 756 transitions. Word has length 245 [2020-09-24 15:50:36,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:50:36,401 INFO L479 AbstractCegarLoop]: Abstraction has 676 states and 756 transitions. [2020-09-24 15:50:36,402 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-24 15:50:36,402 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 756 transitions. [2020-09-24 15:50:36,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2020-09-24 15:50:36,406 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:50:36,407 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:50:36,407 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 15:50:36,407 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:50:36,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:50:36,408 INFO L82 PathProgramCache]: Analyzing trace with hash -413355322, now seen corresponding path program 2 times [2020-09-24 15:50:36,408 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:50:36,408 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1184585042] [2020-09-24 15:50:36,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:50:36,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 15:50:36,509 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 15:50:36,509 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 15:50:36,517 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 15:50:36,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 03:50:36 BoogieIcfgContainer [2020-09-24 15:50:36,551 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 15:50:36,552 INFO L168 Benchmark]: Toolchain (without parser) took 52220.28 ms. Allocated memory was 138.9 MB in the beginning and 860.9 MB in the end (delta: 721.9 MB). Free memory was 101.6 MB in the beginning and 394.1 MB in the end (delta: -292.5 MB). Peak memory consumption was 429.4 MB. Max. memory is 7.1 GB. [2020-09-24 15:50:36,553 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 15:50:36,554 INFO L168 Benchmark]: CACSL2BoogieTranslator took 729.52 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 100.9 MB in the beginning and 172.3 MB in the end (delta: -71.4 MB). Peak memory consumption was 27.8 MB. Max. memory is 7.1 GB. [2020-09-24 15:50:36,555 INFO L168 Benchmark]: Boogie Preprocessor took 97.94 ms. Allocated memory is still 202.4 MB. Free memory was 172.3 MB in the beginning and 168.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-09-24 15:50:36,555 INFO L168 Benchmark]: RCFGBuilder took 1241.31 ms. Allocated memory was 202.4 MB in the beginning and 234.9 MB in the end (delta: 32.5 MB). Free memory was 168.1 MB in the beginning and 180.6 MB in the end (delta: -12.5 MB). Peak memory consumption was 86.2 MB. Max. memory is 7.1 GB. [2020-09-24 15:50:36,556 INFO L168 Benchmark]: TraceAbstraction took 50143.37 ms. Allocated memory was 234.9 MB in the beginning and 860.9 MB in the end (delta: 626.0 MB). Free memory was 180.6 MB in the beginning and 394.1 MB in the end (delta: -213.5 MB). Peak memory consumption was 412.5 MB. Max. memory is 7.1 GB. [2020-09-24 15:50:36,559 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 729.52 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 100.9 MB in the beginning and 172.3 MB in the end (delta: -71.4 MB). Peak memory consumption was 27.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 97.94 ms. Allocated memory is still 202.4 MB. Free memory was 172.3 MB in the beginning and 168.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1241.31 ms. Allocated memory was 202.4 MB in the beginning and 234.9 MB in the end (delta: 32.5 MB). Free memory was 168.1 MB in the beginning and 180.6 MB in the end (delta: -12.5 MB). Peak memory consumption was 86.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 50143.37 ms. Allocated memory was 234.9 MB in the beginning and 860.9 MB in the end (delta: 626.0 MB). Free memory was 180.6 MB in the beginning and 394.1 MB in the end (delta: -213.5 MB). Peak memory consumption was 412.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 540]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L69] int cleanupTimeShifts = 4; [L282] int pumpRunning = 0; [L283] int systemActive = 1; [L442] int waterLevel = 1; [L443] int methaneLevelCritical = 0; [L714] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L150] int retValue_acc ; [L151] int tmp ; [L155] FCALL select_helpers() [L156] FCALL select_features() [L157] CALL, EXPR valid_product() [L199] int retValue_acc ; [L202] retValue_acc = 1 [L203] return (retValue_acc); [L157] RET, EXPR valid_product() [L157] tmp = valid_product() [L159] COND TRUE \read(tmp) [L161] FCALL setup() [L162] CALL runTest() [L141] CALL test() [L210] int splverifierCounter ; [L211] int tmp ; [L212] int tmp___0 ; [L213] int tmp___1 ; [L214] int tmp___2 ; [L217] splverifierCounter = 0 [L219] COND TRUE 1 [L221] COND TRUE splverifierCounter < 4 [L227] tmp = __VERIFIER_nondet_int() [L229] COND TRUE \read(tmp) [L231] CALL waterRise() [L460] COND TRUE waterLevel < 2 [L461] waterLevel = waterLevel + 1 [L231] RET waterRise() [L237] tmp___0 = __VERIFIER_nondet_int() [L239] COND FALSE !(\read(tmp___0)) [L247] tmp___2 = __VERIFIER_nondet_int() [L249] COND TRUE \read(tmp___2) [L251] CALL startSystem() [L437] systemActive = 1 [L251] RET startSystem() [L264] CALL timeShift() [L289] COND FALSE !(\read(pumpRunning)) [L296] COND TRUE \read(systemActive) [L298] CALL processEnvironment() [L318] int tmp ; [L321] COND TRUE ! pumpRunning [L323] CALL, EXPR isHighWaterLevel() [L415] int retValue_acc ; [L416] int tmp ; [L417] int tmp___0 ; [L421] CALL, EXPR isHighWaterSensorDry() [L522] int retValue_acc ; [L525] COND FALSE !(waterLevel < 2) [L529] retValue_acc = 0 [L530] return (retValue_acc); [L421] RET, EXPR isHighWaterSensorDry() [L421] tmp = isHighWaterSensorDry() [L423] COND FALSE !(\read(tmp)) [L426] tmp___0 = 1 [L428] retValue_acc = tmp___0 [L429] return (retValue_acc); [L323] RET, EXPR isHighWaterLevel() [L323] tmp = isHighWaterLevel() [L325] COND TRUE \read(tmp) [L327] CALL activatePump() [L346] pumpRunning = 1 [L327] RET activatePump() [L298] RET processEnvironment() [L304] CALL __utac_acc__Specification4_spec__1() [L44] int tmp ; [L45] int tmp___0 ; [L49] CALL, EXPR getWaterLevel() [L513] int retValue_acc ; [L516] retValue_acc = waterLevel [L517] return (retValue_acc); [L49] RET, EXPR getWaterLevel() [L49] tmp = getWaterLevel() [L51] COND FALSE !(tmp == 0) [L304] RET __utac_acc__Specification4_spec__1() [L264] RET timeShift() [L219] COND TRUE 1 [L221] COND TRUE splverifierCounter < 4 [L227] tmp = __VERIFIER_nondet_int() [L229] COND FALSE !(\read(tmp)) [L237] tmp___0 = __VERIFIER_nondet_int() [L239] COND FALSE !(\read(tmp___0)) [L247] tmp___2 = __VERIFIER_nondet_int() [L249] COND TRUE \read(tmp___2) [L251] CALL startSystem() [L437] systemActive = 1 [L251] RET startSystem() [L264] CALL timeShift() [L289] COND TRUE \read(pumpRunning) [L291] CALL lowerWaterLevel() [L448] COND TRUE waterLevel > 0 [L449] waterLevel = waterLevel - 1 [L291] RET lowerWaterLevel() [L296] COND TRUE \read(systemActive) [L298] CALL processEnvironment() [L318] int tmp ; [L321] COND FALSE !(! pumpRunning) [L336] FCALL processEnvironment__wrappee__base() [L298] RET processEnvironment() [L304] CALL __utac_acc__Specification4_spec__1() [L44] int tmp ; [L45] int tmp___0 ; [L49] CALL, EXPR getWaterLevel() [L513] int retValue_acc ; [L516] retValue_acc = waterLevel [L517] return (retValue_acc); [L49] RET, EXPR getWaterLevel() [L49] tmp = getWaterLevel() [L51] COND FALSE !(tmp == 0) [L304] RET __utac_acc__Specification4_spec__1() [L264] RET timeShift() [L219] COND TRUE 1 [L221] COND TRUE splverifierCounter < 4 [L227] tmp = __VERIFIER_nondet_int() [L229] COND FALSE !(\read(tmp)) [L237] tmp___0 = __VERIFIER_nondet_int() [L239] COND FALSE !(\read(tmp___0)) [L247] tmp___2 = __VERIFIER_nondet_int() [L249] COND TRUE \read(tmp___2) [L251] CALL startSystem() [L437] systemActive = 1 [L251] RET startSystem() [L264] CALL timeShift() [L289] COND TRUE \read(pumpRunning) [L291] CALL lowerWaterLevel() [L448] COND TRUE waterLevel > 0 [L449] waterLevel = waterLevel - 1 [L291] RET lowerWaterLevel() [L296] COND TRUE \read(systemActive) [L298] CALL processEnvironment() [L318] int tmp ; [L321] COND FALSE !(! pumpRunning) [L336] FCALL processEnvironment__wrappee__base() [L298] RET processEnvironment() [L304] CALL __utac_acc__Specification4_spec__1() [L44] int tmp ; [L45] int tmp___0 ; [L49] CALL, EXPR getWaterLevel() [L513] int retValue_acc ; [L516] retValue_acc = waterLevel [L517] return (retValue_acc); [L49] RET, EXPR getWaterLevel() [L49] tmp = getWaterLevel() [L51] COND TRUE tmp == 0 [L53] CALL, EXPR isPumpRunning() [L370] int retValue_acc ; [L373] retValue_acc = pumpRunning [L374] return (retValue_acc); [L53] RET, EXPR isPumpRunning() [L53] tmp___0 = isPumpRunning() [L55] COND TRUE \read(tmp___0) [L57] CALL __automaton_fail() [L540] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 610 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 50.0s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 41.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2243 SDtfs, 5366 SDslu, 4444 SDs, 0 SdLazy, 9444 SolverSat, 1548 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 20.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 466 GetRequests, 283 SyntacticMatches, 8 SemanticMatches, 175 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 905 ImplicationChecksByTransitivity, 19.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=676occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 10 MinimizatonAttempts, 1658 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 5.9s InterpolantComputationTime, 2109 NumberOfCodeBlocks, 2109 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1803 ConstructedInterpolants, 0 QuantifiedInterpolants, 792591 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 35/39 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...