/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product57.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 19:15:40,222 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 19:15:40,229 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 19:15:40,274 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 19:15:40,275 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 19:15:40,282 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 19:15:40,285 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 19:15:40,289 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 19:15:40,292 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 19:15:40,295 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 19:15:40,296 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 19:15:40,297 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 19:15:40,297 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 19:15:40,300 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 19:15:40,303 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 19:15:40,305 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 19:15:40,307 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 19:15:40,308 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 19:15:40,310 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 19:15:40,318 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 19:15:40,321 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 19:15:40,322 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 19:15:40,323 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 19:15:40,324 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 19:15:40,336 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 19:15:40,336 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 19:15:40,336 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 19:15:40,337 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 19:15:40,338 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 19:15:40,340 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 19:15:40,340 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 19:15:40,347 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 19:15:40,348 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 19:15:40,349 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 19:15:40,350 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 19:15:40,350 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 19:15:40,351 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 19:15:40,351 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 19:15:40,351 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 19:15:40,352 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 19:15:40,353 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 19:15:40,354 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 19:15:40,379 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 19:15:40,380 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 19:15:40,381 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 19:15:40,381 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 19:15:40,381 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 19:15:40,382 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 19:15:40,382 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 19:15:40,382 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 19:15:40,382 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 19:15:40,382 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 19:15:40,383 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 19:15:40,383 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 19:15:40,383 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 19:15:40,383 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 19:15:40,384 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 19:15:40,384 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 19:15:40,384 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 19:15:40,384 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 19:15:40,384 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 19:15:40,385 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 19:15:40,385 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 19:15:40,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:15:40,385 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 19:15:40,385 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 19:15:40,386 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 19:15:40,386 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 19:15:40,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 19:15:40,386 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 19:15:40,387 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 19:15:40,387 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 19:15:40,863 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 19:15:40,881 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 19:15:40,886 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 19:15:40,888 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 19:15:40,888 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 19:15:40,889 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product57.cil.c [2020-09-24 19:15:40,978 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6e0212218/8c61411e9f1b4df7926a62983e3029a9/FLAGa5e08c1aa [2020-09-24 19:15:41,591 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 19:15:41,594 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product57.cil.c [2020-09-24 19:15:41,608 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6e0212218/8c61411e9f1b4df7926a62983e3029a9/FLAGa5e08c1aa [2020-09-24 19:15:41,843 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6e0212218/8c61411e9f1b4df7926a62983e3029a9 [2020-09-24 19:15:41,859 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 19:15:41,866 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 19:15:41,867 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 19:15:41,867 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 19:15:41,873 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 19:15:41,874 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:15:41" (1/1) ... [2020-09-24 19:15:41,880 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53d96e6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:15:41, skipping insertion in model container [2020-09-24 19:15:41,880 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:15:41" (1/1) ... [2020-09-24 19:15:41,890 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 19:15:41,978 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 19:15:42,601 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:15:42,622 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 19:15:42,724 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:15:42,769 INFO L208 MainTranslator]: Completed translation [2020-09-24 19:15:42,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:15:42 WrapperNode [2020-09-24 19:15:42,769 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 19:15:42,770 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 19:15:42,771 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 19:15:42,771 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 19:15:42,789 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:15:42" (1/1) ... [2020-09-24 19:15:42,789 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:15:42" (1/1) ... [2020-09-24 19:15:42,810 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:15:42" (1/1) ... [2020-09-24 19:15:42,811 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:15:42" (1/1) ... [2020-09-24 19:15:42,841 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:15:42" (1/1) ... [2020-09-24 19:15:42,863 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:15:42" (1/1) ... [2020-09-24 19:15:42,870 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:15:42" (1/1) ... [2020-09-24 19:15:42,880 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 19:15:42,884 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 19:15:42,884 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 19:15:42,884 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 19:15:42,885 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:15:42" (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 19:15:42,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 19:15:42,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 19:15:42,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 19:15:42,981 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 19:15:42,981 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 19:15:42,982 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 19:15:42,982 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 19:15:42,982 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 19:15:42,983 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 19:15:42,983 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 19:15:42,984 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 19:15:42,984 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 19:15:42,984 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 19:15:42,984 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 19:15:42,984 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 19:15:42,985 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 19:15:42,985 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 19:15:42,986 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 19:15:42,986 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 19:15:42,986 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 19:15:42,987 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 19:15:42,987 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 19:15:42,988 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 19:15:42,989 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 19:15:42,990 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 19:15:42,991 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 19:15:42,991 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 19:15:42,991 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-24 19:15:42,991 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-24 19:15:42,991 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-24 19:15:42,992 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 19:15:42,992 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 19:15:42,992 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 19:15:42,992 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 19:15:42,992 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 19:15:42,992 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 19:15:42,993 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 19:15:42,993 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 19:15:42,993 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 19:15:42,993 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 19:15:42,993 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 19:15:42,993 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 19:15:42,993 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 19:15:42,994 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 19:15:42,994 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 19:15:42,994 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 19:15:42,994 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 19:15:42,994 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 19:15:42,994 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 19:15:42,995 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 19:15:42,995 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 19:15:42,996 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 19:15:42,996 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 19:15:42,996 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 19:15:42,997 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 19:15:42,997 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 19:15:42,997 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 19:15:42,997 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 19:15:42,997 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-24 19:15:42,997 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 19:15:42,998 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 19:15:42,998 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 19:15:42,998 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 19:15:42,998 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 19:15:42,998 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 19:15:42,999 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 19:15:42,999 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 19:15:42,999 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 19:15:43,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 19:15:43,000 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 19:15:43,000 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 19:15:43,001 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 19:15:43,002 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 19:15:43,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 19:15:43,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 19:15:43,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 19:15:43,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 19:15:43,003 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 19:15:43,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 19:15:43,003 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 19:15:43,004 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 19:15:43,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 19:15:43,005 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 19:15:43,005 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 19:15:43,005 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 19:15:43,005 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 19:15:43,005 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-24 19:15:43,006 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-24 19:15:43,006 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 19:15:43,006 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 19:15:43,006 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 19:15:43,006 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 19:15:43,006 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 19:15:43,006 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 19:15:43,007 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 19:15:43,007 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 19:15:43,007 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 19:15:43,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 19:15:43,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 19:15:43,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 19:15:44,189 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 19:15:44,190 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 19:15:44,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:15:44 BoogieIcfgContainer [2020-09-24 19:15:44,198 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 19:15:44,199 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 19:15:44,199 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 19:15:44,203 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 19:15:44,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 07:15:41" (1/3) ... [2020-09-24 19:15:44,205 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@100c7353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:15:44, skipping insertion in model container [2020-09-24 19:15:44,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:15:42" (2/3) ... [2020-09-24 19:15:44,205 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@100c7353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:15:44, skipping insertion in model container [2020-09-24 19:15:44,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:15:44" (3/3) ... [2020-09-24 19:15:44,208 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product57.cil.c [2020-09-24 19:15:44,221 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 19:15:44,233 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 19:15:44,258 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 19:15:44,291 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 19:15:44,292 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 19:15:44,292 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 19:15:44,292 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 19:15:44,292 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 19:15:44,292 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 19:15:44,292 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 19:15:44,293 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 19:15:44,322 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states. [2020-09-24 19:15:44,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 19:15:44,341 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:15:44,342 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:15:44,343 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:15:44,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:15:44,351 INFO L82 PathProgramCache]: Analyzing trace with hash 1833758350, now seen corresponding path program 1 times [2020-09-24 19:15:44,362 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:15:44,363 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [860997361] [2020-09-24 19:15:44,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:15:44,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:44,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:45,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:45,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:45,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-24 19:15:45,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:15:45,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1073 [2020-09-24 19:15:45,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:45,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:45,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-24 19:15:45,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:45,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 12 [2020-09-24 19:15:46,245 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:15:46,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:46,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:46,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:46,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:46,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:15:46,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:46,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-09-24 19:15:46,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:46,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:46,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:46,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:46,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:46,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:15:46,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:46,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:46,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:46,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:46,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:46,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:46,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:46,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:46,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:46,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:46,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:46,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:15:46,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:46,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:46,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:46,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:46,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:46,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:46,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:46,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:46,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:46,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:46,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:46,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:15:46,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:46,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:46,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:46,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:46,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:46,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:15:46,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:46,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:46,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:46,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:46,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:46,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:15:46,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:46,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:46,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:46,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:46,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:46,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:46,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:46,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:46,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:46,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:46,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:46,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:15:46,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:46,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:46,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:46,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:15:46,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:46,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:46,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:46,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:46,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:46,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:46,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:46,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 19:15:46,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:46,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:46,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:46,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:15:46,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:46,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:15:46,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:46,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:46,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 19:15:46,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:46,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:46,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:46,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:46,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:46,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:46,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:46,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:46,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:15:46,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:46,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:46,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:46,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:46,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:46,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 19:15:46,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:46,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:46,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:46,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:46,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:46,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:15:46,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:46,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:46,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:15:46,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:46,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:46,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 19:15:46,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:46,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:46,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:46,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:46,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:46,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:15:46,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:46,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:46,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:15:46,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:46,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:46,759 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 19:15:46,760 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [860997361] [2020-09-24 19:15:46,762 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:15:46,763 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 19:15:46,765 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253626185] [2020-09-24 19:15:46,773 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 19:15:46,774 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:15:46,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 19:15:46,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 19:15:46,796 INFO L87 Difference]: Start difference. First operand 347 states. Second operand 4 states. [2020-09-24 19:15:48,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:15:48,428 INFO L93 Difference]: Finished difference Result 553 states and 641 transitions. [2020-09-24 19:15:48,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 19:15:48,431 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-09-24 19:15:48,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:15:48,453 INFO L225 Difference]: With dead ends: 553 [2020-09-24 19:15:48,454 INFO L226 Difference]: Without dead ends: 342 [2020-09-24 19:15:48,461 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 19:15:48,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2020-09-24 19:15:48,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 296. [2020-09-24 19:15:48,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 296 states. [2020-09-24 19:15:48,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 321 transitions. [2020-09-24 19:15:48,589 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 321 transitions. Word has length 160 [2020-09-24 19:15:48,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:15:48,591 INFO L479 AbstractCegarLoop]: Abstraction has 296 states and 321 transitions. [2020-09-24 19:15:48,591 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 19:15:48,591 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 321 transitions. [2020-09-24 19:15:48,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-24 19:15:48,598 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:15:48,598 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:15:48,598 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 19:15:48,599 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:15:48,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:15:48,599 INFO L82 PathProgramCache]: Analyzing trace with hash -1480505140, now seen corresponding path program 1 times [2020-09-24 19:15:48,600 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:15:48,600 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [288815185] [2020-09-24 19:15:48,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:15:48,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:48,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:48,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:49,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:49,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:49,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:49,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-24 19:15:49,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 19:15:49,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1041 [2020-09-24 19:15:49,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:49,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:49,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-24 19:15:49,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:15:49,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:50,071 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:15:50,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:50,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:50,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:50,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:50,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:15:50,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:50,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-24 19:15:50,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:50,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:50,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:50,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:50,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:50,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:15:50,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:50,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:50,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:50,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:50,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:50,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:50,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:50,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:50,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:50,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:50,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:50,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:15:50,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:50,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:50,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:50,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:50,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:50,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:50,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:50,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:50,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:50,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:50,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:50,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:15:50,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:50,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:50,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:50,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:50,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:50,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:15:50,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:50,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:50,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:50,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:50,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:50,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:15:50,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:50,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:50,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:50,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:50,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:50,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:50,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:50,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:50,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:50,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:50,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:50,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:15:50,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:50,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:50,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:50,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:15:50,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:50,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:50,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:50,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:50,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:50,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:50,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:50,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 19:15:50,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:50,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:50,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:50,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:15:50,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:50,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:50,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:50,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:50,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 19:15:50,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:50,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:50,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:50,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:50,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:50,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:50,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:50,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:50,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:50,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:50,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:50,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:50,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:50,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:50,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-24 19:15:50,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:50,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:50,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:50,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:50,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:50,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:50,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:50,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:50,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:15:50,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:50,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:50,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 19:15:50,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:50,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:50,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:50,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:50,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:50,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:50,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:50,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:50,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:15:50,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:50,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:50,341 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 19:15:50,342 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [288815185] [2020-09-24 19:15:50,342 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:15:50,342 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 19:15:50,343 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332371486] [2020-09-24 19:15:50,345 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 19:15:50,345 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:15:50,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 19:15:50,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:15:50,346 INFO L87 Difference]: Start difference. First operand 296 states and 321 transitions. Second operand 5 states. [2020-09-24 19:15:51,203 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:15:52,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:15:52,310 INFO L93 Difference]: Finished difference Result 482 states and 537 transitions. [2020-09-24 19:15:52,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 19:15:52,310 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-09-24 19:15:52,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:15:52,316 INFO L225 Difference]: With dead ends: 482 [2020-09-24 19:15:52,316 INFO L226 Difference]: Without dead ends: 331 [2020-09-24 19:15:52,318 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:15:52,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2020-09-24 19:15:52,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 286. [2020-09-24 19:15:52,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2020-09-24 19:15:52,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 308 transitions. [2020-09-24 19:15:52,375 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 308 transitions. Word has length 161 [2020-09-24 19:15:52,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:15:52,376 INFO L479 AbstractCegarLoop]: Abstraction has 286 states and 308 transitions. [2020-09-24 19:15:52,376 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 19:15:52,376 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 308 transitions. [2020-09-24 19:15:52,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-24 19:15:52,379 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:15:52,380 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:15:52,380 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 19:15:52,380 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:15:52,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:15:52,381 INFO L82 PathProgramCache]: Analyzing trace with hash -1554045372, now seen corresponding path program 1 times [2020-09-24 19:15:52,381 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:15:52,381 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [820459673] [2020-09-24 19:15:52,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:15:52,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:52,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:52,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:52,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:53,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:53,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-24 19:15:53,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:15:53,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-24 19:15:53,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:53,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:53,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-09-24 19:15:53,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-24 19:15:53,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:53,880 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:15:53,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:53,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:53,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:54,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:54,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:15:54,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:54,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 320 [2020-09-24 19:15:54,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:54,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:54,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:54,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-24 19:15:54,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:54,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:15:54,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:54,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:54,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:54,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:54,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:54,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:54,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:54,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:54,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:54,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:15:54,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:54,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:15:54,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:54,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:54,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:54,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:54,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:54,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:54,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:54,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:54,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:54,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:15:54,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:54,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:15:54,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:54,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:54,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:54,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:54,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:54,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:15:54,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:54,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:54,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:54,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:15:54,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:54,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:15:54,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:54,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:54,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:54,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:54,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:54,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:15:54,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:54,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:54,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:54,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:15:54,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:54,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:15:54,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:54,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:54,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:54,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:15:54,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:54,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:15:54,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:54,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:54,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:54,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 19:15:54,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:54,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 19:15:54,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:54,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:54,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:54,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:15:54,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:54,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:15:54,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:54,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:54,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:54,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 19:15:54,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:54,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:54,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:54,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:54,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:54,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:54,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:54,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:54,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:54,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:54,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:54,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:54,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:54,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 19:15:54,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:54,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:54,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:54,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:54,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:54,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:54,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:54,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:54,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:15:54,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:54,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 19:15:54,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-24 19:15:54,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:54,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:54,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:54,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:54,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:54,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:54,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:54,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:54,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:15:54,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:54,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:54,478 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 19:15:54,478 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [820459673] [2020-09-24 19:15:54,479 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:15:54,479 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 19:15:54,479 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208325008] [2020-09-24 19:15:54,480 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 19:15:54,480 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:15:54,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 19:15:54,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:15:54,481 INFO L87 Difference]: Start difference. First operand 286 states and 308 transitions. Second operand 5 states. [2020-09-24 19:15:54,979 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:15:55,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:15:55,945 INFO L93 Difference]: Finished difference Result 502 states and 563 transitions. [2020-09-24 19:15:55,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 19:15:55,946 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 170 [2020-09-24 19:15:55,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:15:55,950 INFO L225 Difference]: With dead ends: 502 [2020-09-24 19:15:55,955 INFO L226 Difference]: Without dead ends: 331 [2020-09-24 19:15:55,960 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 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 19:15:55,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2020-09-24 19:15:55,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 286. [2020-09-24 19:15:55,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2020-09-24 19:15:56,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 307 transitions. [2020-09-24 19:15:56,001 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 307 transitions. Word has length 170 [2020-09-24 19:15:56,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:15:56,002 INFO L479 AbstractCegarLoop]: Abstraction has 286 states and 307 transitions. [2020-09-24 19:15:56,002 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 19:15:56,002 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 307 transitions. [2020-09-24 19:15:56,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-09-24 19:15:56,006 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:15:56,006 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:15:56,006 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 19:15:56,006 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:15:56,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:15:56,007 INFO L82 PathProgramCache]: Analyzing trace with hash 861738255, now seen corresponding path program 1 times [2020-09-24 19:15:56,007 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:15:56,007 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1773227123] [2020-09-24 19:15:56,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:15:56,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:56,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:56,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:56,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:57,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:57,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-09-24 19:15:57,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:15:57,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1064 [2020-09-24 19:15:57,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:57,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:15:57,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 175 [2020-09-24 19:15:57,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:15:57,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:57,413 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:15:57,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:57,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:57,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:57,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:57,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:15:57,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:57,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-09-24 19:15:57,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:57,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:57,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:57,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:57,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:57,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:15:57,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:57,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:57,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:57,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:57,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:57,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:15:57,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:57,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:57,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:57,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:57,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:57,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:15:57,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:57,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:57,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:57,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:57,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:57,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:57,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:57,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:57,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:57,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:57,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:57,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:15:57,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:57,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:57,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:57,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:57,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:57,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:57,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:57,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:57,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:57,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:57,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:57,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:15:57,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:57,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:57,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:57,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:57,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:57,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:15:57,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:57,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:57,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:57,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:57,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:57,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:15:57,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:57,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:57,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:57,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:15:57,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:57,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:57,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:57,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:57,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:57,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:57,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:57,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 19:15:57,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:57,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:57,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:57,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:15:57,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:57,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:57,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:57,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:57,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:57,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:57,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:57,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:57,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:57,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:57,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:57,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:57,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:57,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:57,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:57,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:57,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:57,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:57,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:57,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 19:15:57,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:57,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:57,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:57,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 19:15:57,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:57,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 19:15:57,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:57,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:15:57,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 19:15:57,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:15:57,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:57,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:15:57,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:57,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:57,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:57,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 19:15:57,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:57,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:15:57,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:57,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:15:57,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 19:15:57,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 19:15:57,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:57,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:15:57,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:57,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:57,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:57,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:57,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:57,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:15:57,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:57,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:57,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:57,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:15:57,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:57,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-24 19:15:57,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:57,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:57,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:57,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:57,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:57,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:15:57,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:57,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:57,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:15:57,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:57,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:57,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-09-24 19:15:57,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:57,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:57,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:57,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:57,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:57,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:57,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:57,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:57,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:15:57,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:57,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:57,869 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 19:15:57,870 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1773227123] [2020-09-24 19:15:57,870 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:15:57,871 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 19:15:57,871 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423880789] [2020-09-24 19:15:57,872 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 19:15:57,872 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:15:57,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 19:15:57,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:15:57,872 INFO L87 Difference]: Start difference. First operand 286 states and 307 transitions. Second operand 7 states. [2020-09-24 19:15:58,406 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:16:00,365 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:16:01,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:16:01,062 INFO L93 Difference]: Finished difference Result 642 states and 732 transitions. [2020-09-24 19:16:01,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 19:16:01,069 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 183 [2020-09-24 19:16:01,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:16:01,073 INFO L225 Difference]: With dead ends: 642 [2020-09-24 19:16:01,073 INFO L226 Difference]: Without dead ends: 471 [2020-09-24 19:16:01,074 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2020-09-24 19:16:01,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2020-09-24 19:16:01,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 403. [2020-09-24 19:16:01,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 403 states. [2020-09-24 19:16:01,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 436 transitions. [2020-09-24 19:16:01,123 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 436 transitions. Word has length 183 [2020-09-24 19:16:01,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:16:01,123 INFO L479 AbstractCegarLoop]: Abstraction has 403 states and 436 transitions. [2020-09-24 19:16:01,123 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 19:16:01,124 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 436 transitions. [2020-09-24 19:16:01,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-09-24 19:16:01,126 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:16:01,126 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:16:01,127 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 19:16:01,127 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:16:01,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:16:01,127 INFO L82 PathProgramCache]: Analyzing trace with hash 1687407280, now seen corresponding path program 1 times [2020-09-24 19:16:01,128 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:16:01,128 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [848150769] [2020-09-24 19:16:01,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:16:01,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:01,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:01,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:01,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:02,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:02,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 252 [2020-09-24 19:16:02,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:16:02,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1011 [2020-09-24 19:16:02,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:02,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 19:16:02,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 175 [2020-09-24 19:16:02,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-24 19:16:02,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:02,488 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:16:02,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:16:02,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:02,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:02,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:02,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:16:02,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:02,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-24 19:16:02,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:02,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:02,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:02,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:02,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:02,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:16:02,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:02,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:02,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:02,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:02,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:02,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:16:02,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:02,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:02,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:02,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:02,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:02,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:16:02,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:02,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:02,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:02,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:02,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:02,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:16:02,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:02,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:02,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:02,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:02,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:02,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:16:02,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:02,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:02,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:02,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:02,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:02,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:16:02,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:02,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:02,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:02,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:02,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:02,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:16:02,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:02,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:02,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:02,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:02,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:02,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:16:02,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:02,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:02,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:02,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:02,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:02,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:16:02,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:02,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:02,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:02,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:16:02,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:02,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:16:02,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:02,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:02,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:02,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:02,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:02,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 19:16:02,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:02,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:02,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:02,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:16:02,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:02,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:02,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:02,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:02,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:02,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:02,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:02,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:16:02,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:02,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:02,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:02,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:02,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:02,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:02,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:02,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:02,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:02,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:02,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:02,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 19:16:02,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:02,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:02,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:02,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:02,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 19:16:02,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:16:02,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-24 19:16:02,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:02,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:02,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:02,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:16:02,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:02,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:16:02,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:02,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:02,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:02,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 19:16:02,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:02,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 19:16:02,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:02,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:02,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:02,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:16:02,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:02,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:16:02,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:02,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:02,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:02,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:16:02,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:02,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 19:16:02,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:02,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:02,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:02,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 19:16:02,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:02,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:16:02,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:02,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:02,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:02,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:16:02,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:02,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:16:02,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:02,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:02,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:02,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:02,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:02,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:16:02,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:02,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:02,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:02,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:02,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:02,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:16:02,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:02,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:02,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:02,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:16:02,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:02,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-09-24 19:16:02,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:02,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:02,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:02,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:02,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:02,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:16:02,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:02,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:02,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:02,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:16:02,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:02,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-09-24 19:16:02,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:02,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:02,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:02,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:02,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:02,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:16:02,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:02,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:16:02,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:02,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:16:02,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:02,961 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 19:16:02,962 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [848150769] [2020-09-24 19:16:02,962 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:16:02,962 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 19:16:02,962 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989100882] [2020-09-24 19:16:02,963 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 19:16:02,963 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:16:02,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 19:16:02,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 19:16:02,964 INFO L87 Difference]: Start difference. First operand 403 states and 436 transitions. Second operand 10 states. [2020-09-24 19:16:03,531 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:16:04,514 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:16:04,830 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:16:06,083 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:16:06,378 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:16:06,734 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:16:07,267 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:16:07,573 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:16:07,870 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:16:08,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:16:08,446 INFO L93 Difference]: Finished difference Result 758 states and 856 transitions. [2020-09-24 19:16:08,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-24 19:16:08,447 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 207 [2020-09-24 19:16:08,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:16:08,451 INFO L225 Difference]: With dead ends: 758 [2020-09-24 19:16:08,451 INFO L226 Difference]: Without dead ends: 470 [2020-09-24 19:16:08,452 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-24 19:16:08,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2020-09-24 19:16:08,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 402. [2020-09-24 19:16:08,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2020-09-24 19:16:08,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 433 transitions. [2020-09-24 19:16:08,514 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 433 transitions. Word has length 207 [2020-09-24 19:16:08,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:16:08,514 INFO L479 AbstractCegarLoop]: Abstraction has 402 states and 433 transitions. [2020-09-24 19:16:08,515 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 19:16:08,515 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 433 transitions. [2020-09-24 19:16:08,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-09-24 19:16:08,518 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:16:08,518 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:16:08,519 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 19:16:08,519 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:16:08,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:16:08,519 INFO L82 PathProgramCache]: Analyzing trace with hash -1406999212, now seen corresponding path program 1 times [2020-09-24 19:16:08,519 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:16:08,520 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1085669163] [2020-09-24 19:16:08,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:16:08,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:08,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:09,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:09,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 281 [2020-09-24 19:16:09,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:09,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 926 [2020-09-24 19:16:09,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:09,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:16:09,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 200 [2020-09-24 19:16:09,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:16:09,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:09,886 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:16:09,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:16:09,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:09,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:09,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:09,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:16:09,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:09,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-24 19:16:09,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:09,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:09,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:09,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:09,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:10,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:16:10,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:10,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:10,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:10,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:10,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:10,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:16:10,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:10,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:10,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:10,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:10,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:10,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:16:10,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:10,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:10,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:10,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:10,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:10,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:16:10,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:10,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:10,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:10,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:10,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:10,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:16:10,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:10,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:10,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:10,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:10,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:10,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:16:10,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:10,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:10,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:10,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:10,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:10,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:16:10,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:10,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:10,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:10,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:10,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:10,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:16:10,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:10,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:10,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:10,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:10,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:10,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:16:10,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:10,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:10,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:10,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:16:10,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:10,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:10,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:10,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:10,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:10,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:10,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:10,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 19:16:10,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:10,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:10,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:10,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:16:10,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:10,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:16:10,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:10,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:10,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:10,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:10,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:10,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:16:10,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:10,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:10,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:10,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:10,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:10,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:10,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:10,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:10,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:10,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:10,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:10,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 19:16:10,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:10,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:10,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:10,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 19:16:10,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:10,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-24 19:16:10,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:10,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:16:10,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 19:16:10,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:16:10,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:10,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:16:10,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:10,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:10,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:10,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 19:16:10,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:10,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-24 19:16:10,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:10,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:16:10,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 19:16:10,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:16:10,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:10,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:16:10,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:10,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:10,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:10,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:16:10,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:10,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 19:16:10,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:10,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:16:10,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:10,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 19:16:10,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:10,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:16:10,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:10,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:10,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:10,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:16:10,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:10,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:16:10,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:10,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:10,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:10,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:10,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:10,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:16:10,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:10,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:10,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:10,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 19:16:10,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:10,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 19:16:10,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:10,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:10,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 19:16:10,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:10,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:10,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:16:10,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:10,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:10,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:10,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 19:16:10,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:10,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:16:10,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:10,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:10,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:10,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:10,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:10,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:16:10,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:10,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:10,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:10,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:10,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:10,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:16:10,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:10,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:10,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:10,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:10,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:10,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 19:16:10,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:10,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:10,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:10,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:16:10,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:10,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:16:10,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:10,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:10,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:10,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:10,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:10,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2020-09-24 19:16:10,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:10,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:10,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:10,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:10,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:10,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:16:10,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:10,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:10,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:16:10,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:10,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:10,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-09-24 19:16:10,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:10,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:10,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:10,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:10,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:10,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:10,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:10,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:10,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:16:10,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:10,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:10,620 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 19:16:10,621 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1085669163] [2020-09-24 19:16:10,622 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:16:10,622 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 19:16:10,623 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295124436] [2020-09-24 19:16:10,624 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 19:16:10,624 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:16:10,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 19:16:10,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 19:16:10,626 INFO L87 Difference]: Start difference. First operand 402 states and 433 transitions. Second operand 10 states. [2020-09-24 19:16:11,944 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:16:12,270 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 19:16:12,616 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 19:16:12,937 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:16:13,276 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 19:16:13,575 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:16:14,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:16:14,609 INFO L93 Difference]: Finished difference Result 761 states and 862 transitions. [2020-09-24 19:16:14,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 19:16:14,610 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 230 [2020-09-24 19:16:14,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:16:14,613 INFO L225 Difference]: With dead ends: 761 [2020-09-24 19:16:14,613 INFO L226 Difference]: Without dead ends: 474 [2020-09-24 19:16:14,615 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-24 19:16:14,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2020-09-24 19:16:14,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 410. [2020-09-24 19:16:14,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 410 states. [2020-09-24 19:16:14,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 441 transitions. [2020-09-24 19:16:14,664 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 441 transitions. Word has length 230 [2020-09-24 19:16:14,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:16:14,664 INFO L479 AbstractCegarLoop]: Abstraction has 410 states and 441 transitions. [2020-09-24 19:16:14,665 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 19:16:14,665 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 441 transitions. [2020-09-24 19:16:14,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-09-24 19:16:14,666 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:16:14,667 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:16:14,667 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 19:16:14,667 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:16:14,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:16:14,668 INFO L82 PathProgramCache]: Analyzing trace with hash -739252812, now seen corresponding path program 1 times [2020-09-24 19:16:14,668 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:16:14,668 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1941679409] [2020-09-24 19:16:14,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:16:14,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:14,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:15,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:15,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 281 [2020-09-24 19:16:15,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:15,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 816 [2020-09-24 19:16:15,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:15,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:16:15,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 192 [2020-09-24 19:16:15,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:16:15,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:15,858 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:16:15,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:16:15,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:15,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:15,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:15,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:16:15,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:15,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-24 19:16:15,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:15,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:15,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:15,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:15,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:15,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:16:15,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:16,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:16,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:16,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:16,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:16,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:16,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:16,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:16,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:16,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:16,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:16,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:16:16,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:16,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:16,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:16,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:16,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:16,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:16:16,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:16,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:16,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:16,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:16,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:16,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:16:16,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:16,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:16,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:16,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:16,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:16,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:16:16,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:16,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:16,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:16,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:16,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:16,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:16:16,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:16,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:16,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:16,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:16,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:16,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:16:16,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:16,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:16,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:16,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:16,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:16,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:16:16,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:16,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:16,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:16,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:16:16,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:16,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:16:16,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:16,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:16,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:16,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:16,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:16,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 19:16:16,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:16,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:16,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:16,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:16:16,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:16,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:16:16,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:16,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:16,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:16,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:16,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:16,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:16:16,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:16,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:16,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:16,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:16,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:16,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:16:16,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:16,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:16,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:16,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:16,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:16,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 19:16:16,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:16,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:16,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:16,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 19:16:16,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:16,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-24 19:16:16,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:16,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:16:16,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 19:16:16,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:16:16,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:16,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:16:16,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:16,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:16,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:16,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 19:16:16,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:16,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-09-24 19:16:16,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:16,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:16:16,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 19:16:16,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:16:16,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:16,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:16:16,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:16,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:16,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:16,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:16:16,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:16,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 19:16:16,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:16,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:16:16,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 19:16:16,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:16:16,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:16,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:16:16,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:16,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:16,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:16,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:16:16,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:16,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 19:16:16,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:16,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:16:16,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:16,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:16:16,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:16,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:16:16,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:16,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:16,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:16,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 19:16:16,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:16,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 19:16:16,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:16,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:16,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 19:16:16,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:16,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:16,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:16:16,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:16,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:16,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:16,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 19:16:16,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:16,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:16,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:16,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:16,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:16,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:16,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:16,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:16:16,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:16,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:16,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:16,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:16,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:16,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:16:16,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:16,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:16,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:16,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:16,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:16,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 19:16:16,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:16,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:16,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:16,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:16:16,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:16,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:16,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:16,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:16,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:16,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:16,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:16,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2020-09-24 19:16:16,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:16,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:16,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:16,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:16,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:16,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:16,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:16,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:16,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:16:16,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:16,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:16,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-09-24 19:16:16,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:16,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:16,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:16,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:16,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:16,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:16,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:16,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:16,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:16:16,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:16,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:16,537 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 19:16:16,537 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1941679409] [2020-09-24 19:16:16,538 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:16:16,538 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 19:16:16,544 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069999580] [2020-09-24 19:16:16,545 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 19:16:16,545 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:16:16,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 19:16:16,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-24 19:16:16,546 INFO L87 Difference]: Start difference. First operand 410 states and 441 transitions. Second operand 9 states. [2020-09-24 19:16:17,704 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:16:17,995 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 19:16:18,362 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:16:18,685 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 19:16:18,997 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:16:20,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:16:20,176 INFO L93 Difference]: Finished difference Result 773 states and 875 transitions. [2020-09-24 19:16:20,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 19:16:20,177 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 230 [2020-09-24 19:16:20,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:16:20,180 INFO L225 Difference]: With dead ends: 773 [2020-09-24 19:16:20,180 INFO L226 Difference]: Without dead ends: 478 [2020-09-24 19:16:20,182 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-24 19:16:20,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2020-09-24 19:16:20,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 416. [2020-09-24 19:16:20,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 416 states. [2020-09-24 19:16:20,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 447 transitions. [2020-09-24 19:16:20,231 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 447 transitions. Word has length 230 [2020-09-24 19:16:20,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:16:20,232 INFO L479 AbstractCegarLoop]: Abstraction has 416 states and 447 transitions. [2020-09-24 19:16:20,232 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 19:16:20,232 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 447 transitions. [2020-09-24 19:16:20,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-09-24 19:16:20,234 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:16:20,234 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:16:20,235 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 19:16:20,235 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:16:20,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:16:20,235 INFO L82 PathProgramCache]: Analyzing trace with hash -12147535, now seen corresponding path program 1 times [2020-09-24 19:16:20,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:16:20,236 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1438552586] [2020-09-24 19:16:20,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:16:20,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:20,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:21,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:21,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 281 [2020-09-24 19:16:21,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:21,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1033 [2020-09-24 19:16:21,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:21,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 19:16:21,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 19:16:21,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-09-24 19:16:21,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:21,727 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:16:21,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:16:21,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:21,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:22,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:22,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:16:22,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:22,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 248 [2020-09-24 19:16:22,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:22,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:22,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:22,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 19:16:22,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:22,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:16:22,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:22,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:22,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:22,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:22,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:22,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:16:22,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:22,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:22,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:22,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:16:22,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:22,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:16:22,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:22,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:22,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:22,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:22,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:22,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:16:22,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:22,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:22,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:22,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:16:22,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:22,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:16:22,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:22,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:22,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:22,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:22,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:22,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:16:22,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:22,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:22,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:22,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:16:22,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:22,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:16:22,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:22,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:22,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:22,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:22,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:22,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:22,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:22,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:22,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:22,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:16:22,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:22,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:16:22,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:22,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:22,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:22,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:16:22,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:22,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:16:22,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:22,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:22,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:22,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 19:16:22,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:22,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 19:16:22,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:22,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:22,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:22,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:16:22,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:22,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:16:22,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:22,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:22,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:22,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 19:16:22,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:22,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:16:22,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:22,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:22,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:22,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:22,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:22,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:16:22,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:22,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:22,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:22,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:22,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:22,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 19:16:22,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:22,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:22,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:22,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 19:16:22,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:22,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-24 19:16:22,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:22,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:22,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-24 19:16:22,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-24 19:16:22,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:22,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:16:22,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:22,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:22,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:22,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 19:16:22,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:22,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-24 19:16:22,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:22,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:22,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:22,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 19:16:22,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:22,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:16:22,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:22,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:22,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:22,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:16:22,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:22,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 19:16:22,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:22,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:22,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:22,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:16:22,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:22,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:16:22,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:22,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:22,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:22,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:16:22,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:22,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:16:22,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:22,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:22,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:22,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:16:22,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:22,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:16:22,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:22,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:22,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:22,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 19:16:22,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:22,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 19:16:22,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:22,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:22,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:22,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 19:16:22,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:22,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:16:22,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:22,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:22,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:22,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 19:16:22,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:22,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:16:22,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:22,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:22,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:22,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:22,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:22,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:16:22,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:22,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:22,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:22,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:22,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:22,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:22,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:22,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:22,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:22,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:22,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:22,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 19:16:22,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:22,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:22,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:22,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:16:22,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:22,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:22,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:22,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:22,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:22,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:22,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:22,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2020-09-24 19:16:22,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:22,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:22,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:22,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:22,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:22,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:22,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:22,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:22,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:16:22,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:22,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:22,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-09-24 19:16:22,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:22,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:22,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:22,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:22,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:22,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:22,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:22,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:22,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:16:22,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:22,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:22,520 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 19:16:22,521 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1438552586] [2020-09-24 19:16:22,521 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:16:22,521 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 19:16:22,522 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333296947] [2020-09-24 19:16:22,522 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 19:16:22,523 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:16:22,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 19:16:22,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:16:22,523 INFO L87 Difference]: Start difference. First operand 416 states and 447 transitions. Second operand 7 states. [2020-09-24 19:16:23,019 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:16:23,670 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:16:26,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:16:26,009 INFO L93 Difference]: Finished difference Result 1029 states and 1186 transitions. [2020-09-24 19:16:26,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 19:16:26,010 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 230 [2020-09-24 19:16:26,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:16:26,015 INFO L225 Difference]: With dead ends: 1029 [2020-09-24 19:16:26,015 INFO L226 Difference]: Without dead ends: 728 [2020-09-24 19:16:26,016 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 45 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-09-24 19:16:26,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2020-09-24 19:16:26,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 659. [2020-09-24 19:16:26,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 659 states. [2020-09-24 19:16:26,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 727 transitions. [2020-09-24 19:16:26,140 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 727 transitions. Word has length 230 [2020-09-24 19:16:26,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:16:26,141 INFO L479 AbstractCegarLoop]: Abstraction has 659 states and 727 transitions. [2020-09-24 19:16:26,141 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 19:16:26,141 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 727 transitions. [2020-09-24 19:16:26,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-09-24 19:16:26,146 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:16:26,147 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:16:26,147 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 19:16:26,147 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:16:26,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:16:26,148 INFO L82 PathProgramCache]: Analyzing trace with hash 851733322, now seen corresponding path program 1 times [2020-09-24 19:16:26,148 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:16:26,148 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [682091075] [2020-09-24 19:16:26,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:16:26,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:26,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:26,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:27,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:27,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 288 [2020-09-24 19:16:27,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:16:27,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1037 [2020-09-24 19:16:27,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:27,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 19:16:27,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 145 [2020-09-24 19:16:27,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-09-24 19:16:27,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:27,642 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:16:27,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:16:27,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:27,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:27,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:27,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:16:27,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:27,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-24 19:16:27,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:27,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:27,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:27,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:27,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:27,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:16:27,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:27,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:27,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:27,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:27,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:27,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:16:27,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:27,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:27,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:27,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:27,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:27,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:16:27,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:27,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:27,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:27,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:27,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:27,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:16:27,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:27,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:27,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:27,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:27,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:27,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:16:27,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:27,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:27,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:27,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:27,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:27,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:16:27,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:27,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:27,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:27,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:27,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:27,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:16:27,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:27,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:27,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:27,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:27,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:27,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:16:27,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:27,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:27,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:27,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:27,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:27,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:16:27,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:27,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:27,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:27,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:16:27,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:27,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:16:27,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:27,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:27,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:27,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:27,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:27,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 19:16:27,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:27,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:27,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:27,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:16:27,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:27,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:16:27,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:27,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 19:16:27,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:27,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:16:27,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:27,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 19:16:27,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:27,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:27,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:27,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:16:27,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:27,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:16:27,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:27,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:27,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:27,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 19:16:27,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:27,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:16:27,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:27,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:27,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:27,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:27,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:27,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:27,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:27,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:27,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:27,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:27,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:27,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 19:16:27,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:27,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:27,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:27,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 19:16:27,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:27,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-24 19:16:27,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:27,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 19:16:27,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:27,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 19:16:27,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:28,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:16:28,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:28,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:28,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:28,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 19:16:28,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:28,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 19:16:28,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:28,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:28,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:28,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 19:16:28,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:28,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:16:28,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:28,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:28,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:28,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:16:28,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:28,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 19:16:28,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:28,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:28,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:28,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:16:28,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:28,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:16:28,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:28,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:28,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:28,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:16:28,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:28,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 19:16:28,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:28,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:28,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:28,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:16:28,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:28,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:16:28,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:28,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:28,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:28,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 19:16:28,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:28,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 19:16:28,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:28,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:28,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:28,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 19:16:28,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:28,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:16:28,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:28,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:28,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:28,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 19:16:28,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:28,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:28,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:28,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:28,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:28,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:28,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:28,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:16:28,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:28,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:28,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:28,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:28,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:28,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:28,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:28,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:28,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:28,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:28,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:28,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 19:16:28,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:28,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:28,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:28,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:16:28,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:28,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:16:28,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:28,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:28,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:28,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:28,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:28,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2020-09-24 19:16:28,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:28,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:28,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:28,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:28,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:28,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:16:28,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:28,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:16:28,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:28,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:16:28,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:28,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-09-24 19:16:28,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:28,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:28,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:28,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:28,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:28,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:28,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:28,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:28,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:16:28,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:28,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:28,346 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 19:16:28,347 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [682091075] [2020-09-24 19:16:28,347 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:16:28,347 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-24 19:16:28,348 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290811956] [2020-09-24 19:16:28,348 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-24 19:16:28,349 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:16:28,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-24 19:16:28,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2020-09-24 19:16:28,350 INFO L87 Difference]: Start difference. First operand 659 states and 727 transitions. Second operand 14 states. [2020-09-24 19:16:28,915 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:16:29,869 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:16:30,753 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:16:31,642 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:16:31,980 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 193