/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.2 --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_spec1_product50.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 04:01:16,812 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:01:16,816 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:01:16,844 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:01:16,844 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:01:16,846 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:01:16,847 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:01:16,849 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:01:16,851 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:01:16,852 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:01:16,853 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:01:16,855 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:01:16,855 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:01:16,856 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:01:16,858 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:01:16,859 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:01:16,860 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:01:16,861 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:01:16,864 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:01:16,866 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:01:16,868 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:01:16,870 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:01:16,871 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:01:16,872 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:01:16,878 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:01:16,878 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:01:16,878 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:01:16,880 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:01:16,880 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:01:16,881 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:01:16,882 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:01:16,883 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:01:16,884 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:01:16,885 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:01:16,886 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:01:16,886 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:01:16,887 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:01:16,887 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:01:16,887 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:01:16,888 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:01:16,889 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:01:16,890 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 04:01:16,916 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:01:16,917 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:01:16,918 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:01:16,918 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:01:16,918 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:01:16,919 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:01:16,919 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:01:16,919 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:01:16,919 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:01:16,920 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:01:16,920 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:01:16,920 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:01:16,920 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:01:16,920 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:01:16,921 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:01:16,921 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:01:16,921 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:01:16,921 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:01:16,921 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:01:16,922 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:01:16,922 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:01:16,922 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:01:16,922 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:01:16,922 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:01:16,923 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:01:16,923 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:01:16,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:01:16,923 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:01:16,923 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:01:16,924 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; [2020-09-25 04:01:17,377 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:01:17,401 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:01:17,406 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:01:17,407 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:01:17,408 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:01:17,409 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product50.cil.c [2020-09-25 04:01:17,487 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b6e25ead8/5f98cd79d902483eadfe5667f64fd302/FLAG5c104dfd2 [2020-09-25 04:01:18,083 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:01:18,085 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product50.cil.c [2020-09-25 04:01:18,105 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b6e25ead8/5f98cd79d902483eadfe5667f64fd302/FLAG5c104dfd2 [2020-09-25 04:01:18,367 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b6e25ead8/5f98cd79d902483eadfe5667f64fd302 [2020-09-25 04:01:18,381 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:01:18,386 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:01:18,387 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:01:18,387 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:01:18,391 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:01:18,393 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:01:18" (1/1) ... [2020-09-25 04:01:18,397 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d085505 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:01:18, skipping insertion in model container [2020-09-25 04:01:18,397 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:01:18" (1/1) ... [2020-09-25 04:01:18,406 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:01:18,456 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:01:18,870 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:01:18,985 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:01:19,134 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:01:19,172 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:01:19,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:01:19 WrapperNode [2020-09-25 04:01:19,173 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:01:19,174 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:01:19,175 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:01:19,175 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:01:19,195 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:01:19" (1/1) ... [2020-09-25 04:01:19,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:01:19" (1/1) ... [2020-09-25 04:01:19,219 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:01:19" (1/1) ... [2020-09-25 04:01:19,220 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:01:19" (1/1) ... [2020-09-25 04:01:19,255 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:01:19" (1/1) ... [2020-09-25 04:01:19,267 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:01:19" (1/1) ... [2020-09-25 04:01:19,273 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:01:19" (1/1) ... [2020-09-25 04:01:19,287 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:01:19,288 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:01:19,288 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:01:19,288 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:01:19,289 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:01:19" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:01:19,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:01:19,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:01:19,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 04:01:19,373 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 04:01:19,374 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 04:01:19,374 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 04:01:19,374 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 04:01:19,375 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 04:01:19,375 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 04:01:19,375 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 04:01:19,375 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 04:01:19,376 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 04:01:19,376 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 04:01:19,376 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 04:01:19,376 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 04:01:19,377 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 04:01:19,377 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:01:19,378 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 04:01:19,378 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 04:01:19,378 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 04:01:19,379 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 04:01:19,380 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 04:01:19,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 04:01:19,380 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 04:01:19,382 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 04:01:19,382 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 04:01:19,383 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 04:01:19,383 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 04:01:19,383 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 04:01:19,383 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 04:01:19,383 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 04:01:19,384 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 04:01:19,384 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 04:01:19,384 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 04:01:19,385 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 04:01:19,385 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 04:01:19,385 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 04:01:19,385 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 04:01:19,385 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 04:01:19,385 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 04:01:19,386 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 04:01:19,386 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:01:19,386 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 04:01:19,386 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 04:01:19,386 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 04:01:19,386 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 04:01:19,387 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 04:01:19,387 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 04:01:19,387 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 04:01:19,387 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 04:01:19,387 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 04:01:19,387 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 04:01:19,388 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 04:01:19,388 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 04:01:19,388 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 04:01:19,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 04:01:19,388 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 04:01:19,388 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 04:01:19,388 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 04:01:19,389 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 04:01:19,389 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 04:01:19,389 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 04:01:19,389 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 04:01:19,389 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 04:01:19,389 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 04:01:19,389 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 04:01:19,390 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:01:19,390 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 04:01:19,390 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 04:01:19,390 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 04:01:19,390 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 04:01:19,390 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 04:01:19,390 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 04:01:19,391 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 04:01:19,391 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 04:01:19,391 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 04:01:19,391 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 04:01:19,391 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 04:01:19,391 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 04:01:19,392 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 04:01:19,392 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 04:01:19,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 04:01:19,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 04:01:19,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 04:01:19,392 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 04:01:19,393 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 04:01:19,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 04:01:19,393 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 04:01:19,393 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 04:01:19,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 04:01:19,393 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 04:01:19,394 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 04:01:19,394 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 04:01:19,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:01:19,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 04:01:19,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:01:20,617 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:01:20,618 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 04:01:20,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:01:20 BoogieIcfgContainer [2020-09-25 04:01:20,630 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:01:20,631 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:01:20,632 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:01:20,638 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:01:20,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:01:18" (1/3) ... [2020-09-25 04:01:20,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e2976d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:01:20, skipping insertion in model container [2020-09-25 04:01:20,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:01:19" (2/3) ... [2020-09-25 04:01:20,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e2976d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:01:20, skipping insertion in model container [2020-09-25 04:01:20,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:01:20" (3/3) ... [2020-09-25 04:01:20,644 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product50.cil.c [2020-09-25 04:01:20,658 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:01:20,672 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 04:01:20,697 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 04:01:20,741 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:01:20,742 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:01:20,742 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:01:20,742 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:01:20,742 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:01:20,743 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:01:20,743 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:01:20,744 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:01:20,792 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states. [2020-09-25 04:01:20,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 04:01:20,823 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:01:20,826 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:01:20,827 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:01:20,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:01:20,836 INFO L82 PathProgramCache]: Analyzing trace with hash -2015468822, now seen corresponding path program 1 times [2020-09-25 04:01:20,852 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:01:20,852 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1450621751] [2020-09-25 04:01:20,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:01:21,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:21,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:21,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:23,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:24,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:26,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:26,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 04:01:26,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:01:26,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5046 [2020-09-25 04:01:26,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:26,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:26,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:26,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 04:01:26,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:26,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 04:01:26,946 WARN L193 SmtUtils]: Spent 470.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:01:26,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:01:26,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:26,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:27,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:27,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:01:27,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:27,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-09-25 04:01:27,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:27,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:27,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:27,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:27,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:27,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:01:27,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:01:27,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:27,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:27,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:27,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:01:27,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:27,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:01:27,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:27,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:27,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:27,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:27,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:27,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:27,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:01:27,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:27,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:27,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:27,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:01:27,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:27,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:01:27,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:27,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:27,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:27,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:27,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:27,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:27,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:01:27,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:27,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:27,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:27,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:01:27,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:27,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:01:27,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:27,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:27,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:27,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:27,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:27,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:27,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:01:27,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:27,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:27,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:27,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:01:27,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:27,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:01:27,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:27,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:27,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:27,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:27,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:27,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:27,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 04:01:27,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:27,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:27,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:27,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:01:27,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:27,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:01:27,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:27,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:27,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:27,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:01:27,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:27,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:27,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 04:01:27,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:27,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:27,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:27,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:01:27,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:27,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:01:27,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:27,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:27,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:27,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:01:27,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:27,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:27,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:01:27,278 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1450621751] [2020-09-25 04:01:27,281 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:01:27,281 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:01:27,282 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112726125] [2020-09-25 04:01:27,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:01:27,290 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:01:27,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:01:27,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:01:27,312 INFO L87 Difference]: Start difference. First operand 322 states. Second operand 3 states. [2020-09-25 04:01:28,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:01:28,795 INFO L93 Difference]: Finished difference Result 498 states and 590 transitions. [2020-09-25 04:01:28,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:01:28,798 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 04:01:28,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:01:28,821 INFO L225 Difference]: With dead ends: 498 [2020-09-25 04:01:28,821 INFO L226 Difference]: Without dead ends: 307 [2020-09-25 04:01:28,828 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:01:28,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2020-09-25 04:01:28,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 265. [2020-09-25 04:01:28,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2020-09-25 04:01:28,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 287 transitions. [2020-09-25 04:01:28,946 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 287 transitions. Word has length 142 [2020-09-25 04:01:28,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:01:28,947 INFO L479 AbstractCegarLoop]: Abstraction has 265 states and 287 transitions. [2020-09-25 04:01:28,948 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:01:28,948 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 287 transitions. [2020-09-25 04:01:28,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 04:01:28,951 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:01:28,952 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:01:28,952 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:01:28,952 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:01:28,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:01:28,953 INFO L82 PathProgramCache]: Analyzing trace with hash -631468838, now seen corresponding path program 1 times [2020-09-25 04:01:28,953 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:01:28,954 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2048344508] [2020-09-25 04:01:28,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:01:29,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:29,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:29,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:30,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:31,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:32,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:34,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:34,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 04:01:34,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:01:34,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-25 04:01:34,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:34,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:34,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:01:34,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 04:01:34,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 04:01:34,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:34,331 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:01:34,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:01:34,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:34,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:34,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:34,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:01:34,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:34,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-25 04:01:34,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:34,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:34,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:34,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:34,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:34,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:34,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:01:34,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:34,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:34,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:34,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:01:34,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:34,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:01:34,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:34,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:34,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:34,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:34,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:34,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:34,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:01:34,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:34,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:34,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:34,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:01:34,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:34,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:01:34,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:34,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:34,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:34,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:34,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:34,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:34,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:01:34,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:34,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:34,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:34,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:01:34,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:34,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:01:34,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:34,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:34,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:34,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:34,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:34,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:34,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:01:34,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:34,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:34,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:34,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:01:34,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:34,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:01:34,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:34,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:34,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:34,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:34,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:34,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:34,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 04:01:34,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:34,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:34,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:34,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:01:34,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:34,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:01:34,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:34,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:34,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:34,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:01:34,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:34,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:34,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 04:01:34,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:34,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:34,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:34,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:01:34,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:34,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:01:34,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:34,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:34,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:34,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:01:34,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:34,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:34,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:01:34,555 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2048344508] [2020-09-25 04:01:34,555 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:01:34,555 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 04:01:34,555 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503811056] [2020-09-25 04:01:34,557 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 04:01:34,558 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:01:34,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 04:01:34,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:01:34,559 INFO L87 Difference]: Start difference. First operand 265 states and 287 transitions. Second operand 4 states. [2020-09-25 04:01:35,217 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:01:36,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:01:36,153 INFO L93 Difference]: Finished difference Result 411 states and 461 transitions. [2020-09-25 04:01:36,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 04:01:36,154 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 04:01:36,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:01:36,163 INFO L225 Difference]: With dead ends: 411 [2020-09-25 04:01:36,163 INFO L226 Difference]: Without dead ends: 290 [2020-09-25 04:01:36,169 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:01:36,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2020-09-25 04:01:36,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 255. [2020-09-25 04:01:36,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-09-25 04:01:36,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 274 transitions. [2020-09-25 04:01:36,243 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 274 transitions. Word has length 143 [2020-09-25 04:01:36,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:01:36,244 INFO L479 AbstractCegarLoop]: Abstraction has 255 states and 274 transitions. [2020-09-25 04:01:36,244 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 04:01:36,244 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 274 transitions. [2020-09-25 04:01:36,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 04:01:36,247 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:01:36,247 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:01:36,247 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:01:36,248 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:01:36,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:01:36,248 INFO L82 PathProgramCache]: Analyzing trace with hash -604508154, now seen corresponding path program 1 times [2020-09-25 04:01:36,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:01:36,249 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [6122388] [2020-09-25 04:01:36,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:01:36,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:36,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:36,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:37,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:37,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:41,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:41,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 04:01:41,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:01:41,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-09-25 04:01:41,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:41,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:41,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:01:41,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 04:01:41,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:01:41,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:41,593 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:01:41,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:01:41,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:41,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:41,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:41,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:01:41,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:41,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-25 04:01:41,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:41,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:41,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:41,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:41,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:41,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:41,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:01:41,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:41,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:41,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:41,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:01:41,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:41,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:01:41,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:41,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:41,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:41,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:41,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:41,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:41,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:01:41,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:41,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:41,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:41,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:01:41,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:41,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:01:41,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:41,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:41,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:41,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:41,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:41,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:41,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:01:41,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:41,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:41,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:41,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:01:41,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:41,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:01:41,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:41,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:41,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:41,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:41,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:41,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:41,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:01:41,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:41,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:41,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:41,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:01:41,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:41,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:01:41,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:41,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:41,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:41,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:41,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:41,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:41,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 04:01:41,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:41,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:41,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:41,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:01:41,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:41,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:01:41,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:41,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:41,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:01:41,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:41,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 04:01:41,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:41,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 04:01:41,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:41,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:41,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:41,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:01:41,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:41,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:01:41,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:41,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:41,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:41,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:01:41,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:41,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:41,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 04:01:41,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:41,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:41,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:41,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:01:41,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:41,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:01:41,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:41,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:41,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:41,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:01:41,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:41,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:41,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:01:41,938 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [6122388] [2020-09-25 04:01:41,938 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:01:41,938 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 04:01:41,938 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861990295] [2020-09-25 04:01:41,941 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 04:01:41,941 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:01:41,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 04:01:41,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:01:41,944 INFO L87 Difference]: Start difference. First operand 255 states and 274 transitions. Second operand 5 states. [2020-09-25 04:01:42,447 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 04:01:43,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:01:43,445 INFO L93 Difference]: Finished difference Result 457 states and 523 transitions. [2020-09-25 04:01:43,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 04:01:43,446 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-25 04:01:43,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:01:43,450 INFO L225 Difference]: With dead ends: 457 [2020-09-25 04:01:43,450 INFO L226 Difference]: Without dead ends: 312 [2020-09-25 04:01:43,452 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:01:43,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2020-09-25 04:01:43,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 255. [2020-09-25 04:01:43,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-09-25 04:01:43,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 273 transitions. [2020-09-25 04:01:43,512 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 273 transitions. Word has length 156 [2020-09-25 04:01:43,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:01:43,512 INFO L479 AbstractCegarLoop]: Abstraction has 255 states and 273 transitions. [2020-09-25 04:01:43,512 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 04:01:43,513 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 273 transitions. [2020-09-25 04:01:43,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-09-25 04:01:43,521 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:01:43,521 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:01:43,521 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 04:01:43,521 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:01:43,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:01:43,522 INFO L82 PathProgramCache]: Analyzing trace with hash 561125926, now seen corresponding path program 1 times [2020-09-25 04:01:43,522 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:01:43,522 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1348974250] [2020-09-25 04:01:43,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:01:43,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:43,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:43,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:43,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:45,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:46,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:46,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:46,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:48,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:48,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-25 04:01:48,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 04:01:48,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 04:01:48,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:48,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:48,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:01:48,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-09-25 04:01:48,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:01:48,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:01:48,937 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:01:48,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:01:48,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:48,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:49,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:49,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:01:49,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:49,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-25 04:01:49,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:49,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:49,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:49,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:49,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:49,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:49,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:01:49,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:49,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:49,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:49,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:01:49,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:49,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:01:49,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:49,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:49,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:49,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:49,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:49,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:49,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:01:49,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:49,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:49,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:49,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:01:49,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:49,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:01:49,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:49,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:49,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:49,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:49,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:49,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:49,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:01:49,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:49,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:49,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:49,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:01:49,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:49,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:01:49,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:49,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:49,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:49,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:49,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:49,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:49,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:01:49,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:49,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:49,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:49,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:01:49,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:49,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:01:49,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:49,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:49,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:49,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:49,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:49,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:49,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 04:01:49,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:49,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:49,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:49,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:01:49,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:49,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:01:49,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:49,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:49,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:49,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:49,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:49,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:49,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 04:01:49,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:49,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:49,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:49,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 04:01:49,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:49,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:01:49,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:49,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:49,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:01:49,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 04:01:49,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:01:49,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:49,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:01:49,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:49,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:49,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:49,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:01:49,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:49,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:01:49,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:49,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:49,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:01:49,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 04:01:49,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 04:01:49,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:01:49,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:01:49,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:49,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:49,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:49,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:01:49,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:49,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:01:49,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:49,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:49,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:01:49,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:49,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:01:49,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:49,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 04:01:49,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:49,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:49,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:49,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:01:49,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:49,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:01:49,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:49,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:49,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:49,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:01:49,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:49,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:49,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 04:01:49,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:49,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:49,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:49,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:01:49,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:49,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:01:49,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:49,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:49,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:49,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:01:49,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:49,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:49,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:01:49,286 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1348974250] [2020-09-25 04:01:49,287 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:01:49,287 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 04:01:49,287 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946755461] [2020-09-25 04:01:49,288 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 04:01:49,288 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:01:49,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 04:01:49,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:01:49,289 INFO L87 Difference]: Start difference. First operand 255 states and 273 transitions. Second operand 7 states. [2020-09-25 04:01:49,868 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:01:51,501 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:01:52,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:01:52,294 INFO L93 Difference]: Finished difference Result 637 states and 753 transitions. [2020-09-25 04:01:52,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 04:01:52,294 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 169 [2020-09-25 04:01:52,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:01:52,300 INFO L225 Difference]: With dead ends: 637 [2020-09-25 04:01:52,300 INFO L226 Difference]: Without dead ends: 492 [2020-09-25 04:01:52,301 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-09-25 04:01:52,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2020-09-25 04:01:52,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 365. [2020-09-25 04:01:52,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 365 states. [2020-09-25 04:01:52,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 392 transitions. [2020-09-25 04:01:52,359 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 392 transitions. Word has length 169 [2020-09-25 04:01:52,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:01:52,359 INFO L479 AbstractCegarLoop]: Abstraction has 365 states and 392 transitions. [2020-09-25 04:01:52,360 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 04:01:52,360 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 392 transitions. [2020-09-25 04:01:52,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-09-25 04:01:52,362 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:01:52,362 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:01:52,362 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 04:01:52,362 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:01:52,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:01:52,363 INFO L82 PathProgramCache]: Analyzing trace with hash 1803845393, now seen corresponding path program 1 times [2020-09-25 04:01:52,363 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:01:52,363 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [590943591] [2020-09-25 04:01:52,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:01:52,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:52,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:53,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:53,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:53,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:54,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:57,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:57,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 234 [2020-09-25 04:01:57,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:01:57,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-09-25 04:01:57,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:57,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:57,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:01:57,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-09-25 04:01:57,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-25 04:01:57,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:01:57,738 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:01:57,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:01:57,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:57,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:57,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:57,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:01:57,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:57,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-25 04:01:57,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:57,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:57,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:57,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:57,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:57,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:01:57,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:01:57,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:57,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:57,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:57,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:01:57,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:57,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:01:57,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:57,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:57,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:57,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:57,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:57,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:01:57,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:01:57,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:57,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:57,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:57,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:01:57,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:57,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:01:57,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:57,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:57,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:57,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:57,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:57,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:57,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:01:57,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:57,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:57,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:57,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:01:57,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:57,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:01:57,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:57,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:57,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:57,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:57,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:57,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:01:57,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:01:57,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:57,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:57,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:57,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:01:57,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:57,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:01:57,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:57,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:57,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:57,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:57,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:57,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:01:57,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 04:01:57,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:57,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:57,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:57,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:01:57,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:57,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:01:57,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:57,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:57,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:57,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:57,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:57,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:01:57,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 04:01:57,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:57,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:57,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:57,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:57,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 04:01:57,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:01:57,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-25 04:01:57,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:57,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:57,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:01:57,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:57,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:01:57,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:01:57,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:01:57,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:57,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:58,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:58,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 04:01:58,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:58,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 04:01:58,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:58,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:58,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:01:58,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:58,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 04:01:58,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:01:58,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:01:58,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:58,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:58,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:58,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 04:01:58,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:58,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 04:01:58,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:58,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:58,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:01:58,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:58,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 04:01:58,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:01:58,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:01:58,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:58,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:58,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:58,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:01:58,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:58,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:01:58,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:58,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:58,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:58,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:58,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:58,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:58,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 04:01:58,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:58,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:58,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:58,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:01:58,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:58,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:01:58,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:58,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:58,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:01:58,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:58,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:01:58,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:58,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-25 04:01:58,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:58,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:58,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:58,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:01:58,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:58,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:01:58,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:58,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:58,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:01:58,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:58,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:01:58,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:01:58,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-25 04:01:58,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:58,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:58,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:58,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:01:58,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:58,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:01:58,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:58,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:58,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:01:58,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:58,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:01:58,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:01:58,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:01:58,125 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [590943591] [2020-09-25 04:01:58,125 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:01:58,126 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 04:01:58,126 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555993959] [2020-09-25 04:01:58,127 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 04:01:58,127 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:01:58,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 04:01:58,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 04:01:58,128 INFO L87 Difference]: Start difference. First operand 365 states and 392 transitions. Second operand 10 states. [2020-09-25 04:01:58,722 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 04:02:00,308 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 04:02:00,584 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 04:02:00,912 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:02:01,207 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 04:02:01,532 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 04:02:01,872 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:02:02,173 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 04:02:02,479 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:02:03,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:02:03,724 INFO L93 Difference]: Finished difference Result 495 states and 579 transitions. [2020-09-25 04:02:03,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 04:02:03,726 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 193 [2020-09-25 04:02:03,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:02:03,731 INFO L225 Difference]: With dead ends: 495 [2020-09-25 04:02:03,731 INFO L226 Difference]: Without dead ends: 492 [2020-09-25 04:02:03,733 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-25 04:02:03,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2020-09-25 04:02:03,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 365. [2020-09-25 04:02:03,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 365 states. [2020-09-25 04:02:03,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 391 transitions. [2020-09-25 04:02:03,799 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 391 transitions. Word has length 193 [2020-09-25 04:02:03,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:02:03,800 INFO L479 AbstractCegarLoop]: Abstraction has 365 states and 391 transitions. [2020-09-25 04:02:03,800 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 04:02:03,800 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 391 transitions. [2020-09-25 04:02:03,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-25 04:02:03,802 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:02:03,802 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:02:03,803 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 04:02:03,803 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:02:03,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:02:03,803 INFO L82 PathProgramCache]: Analyzing trace with hash -123541430, now seen corresponding path program 1 times [2020-09-25 04:02:03,803 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:02:03,804 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [209413019] [2020-09-25 04:02:03,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:02:03,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:03,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:04,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking...