/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=1.0 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product07.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 08:46:52,796 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 08:46:52,800 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 08:46:52,848 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 08:46:52,848 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 08:46:52,859 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 08:46:52,862 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 08:46:52,866 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 08:46:52,869 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 08:46:52,872 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 08:46:52,873 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 08:46:52,875 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 08:46:52,875 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 08:46:52,878 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 08:46:52,881 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 08:46:52,883 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 08:46:52,885 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 08:46:52,886 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 08:46:52,887 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 08:46:52,898 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 08:46:52,900 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 08:46:52,901 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 08:46:52,902 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 08:46:52,903 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 08:46:52,907 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 08:46:52,907 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 08:46:52,907 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 08:46:52,911 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 08:46:52,911 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 08:46:52,913 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 08:46:52,914 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 08:46:52,915 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 08:46:52,915 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 08:46:52,916 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 08:46:52,918 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 08:46:52,918 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 08:46:52,919 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 08:46:52,919 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 08:46:52,920 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 08:46:52,921 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 08:46:52,922 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 08:46:52,923 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 08:46:52,970 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 08:46:52,970 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 08:46:52,973 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 08:46:52,973 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 08:46:52,974 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 08:46:52,974 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 08:46:52,974 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 08:46:52,975 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 08:46:52,975 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 08:46:52,975 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 08:46:52,976 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 08:46:52,976 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 08:46:52,977 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 08:46:52,977 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 08:46:52,977 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 08:46:52,978 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 08:46:52,978 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 08:46:52,978 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 08:46:52,978 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 08:46:52,978 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 08:46:52,979 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 08:46:52,979 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:46:52,979 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 08:46:52,979 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 08:46:52,980 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 08:46:52,980 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 08:46:52,980 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 08:46:52,980 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 08:46:52,980 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 08:46:52,981 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=1.0;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=1.0;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=1.0;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=1.0;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=1.0;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=1.0;log-additional-information=true; [2020-09-25 08:46:53,432 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 08:46:53,451 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 08:46:53,456 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 08:46:53,458 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 08:46:53,458 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 08:46:53,460 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product07.cil.c [2020-09-25 08:46:53,547 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/94f1fa0f8/34102f713d71419d94394af2d5db1a9e/FLAGaf2b6960a [2020-09-25 08:46:54,192 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 08:46:54,193 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product07.cil.c [2020-09-25 08:46:54,210 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/94f1fa0f8/34102f713d71419d94394af2d5db1a9e/FLAGaf2b6960a [2020-09-25 08:46:54,434 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/94f1fa0f8/34102f713d71419d94394af2d5db1a9e [2020-09-25 08:46:54,447 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 08:46:54,452 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 08:46:54,453 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 08:46:54,453 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 08:46:54,458 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 08:46:54,459 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:46:54" (1/1) ... [2020-09-25 08:46:54,463 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6665a633 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:46:54, skipping insertion in model container [2020-09-25 08:46:54,464 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:46:54" (1/1) ... [2020-09-25 08:46:54,473 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 08:46:54,530 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 08:46:55,038 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:46:55,057 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 08:46:55,135 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:46:55,173 INFO L208 MainTranslator]: Completed translation [2020-09-25 08:46:55,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:46:55 WrapperNode [2020-09-25 08:46:55,174 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 08:46:55,175 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 08:46:55,175 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 08:46:55,176 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 08:46:55,192 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:46:55" (1/1) ... [2020-09-25 08:46:55,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:46:55" (1/1) ... [2020-09-25 08:46:55,214 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:46:55" (1/1) ... [2020-09-25 08:46:55,215 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:46:55" (1/1) ... [2020-09-25 08:46:55,250 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:46:55" (1/1) ... [2020-09-25 08:46:55,262 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:46:55" (1/1) ... [2020-09-25 08:46:55,267 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:46:55" (1/1) ... [2020-09-25 08:46:55,276 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 08:46:55,276 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 08:46:55,277 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 08:46:55,277 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 08:46:55,279 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:46:55" (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 08:46:55,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 08:46:55,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 08:46:55,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 08:46:55,366 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 08:46:55,366 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 08:46:55,367 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 08:46:55,367 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 08:46:55,368 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 08:46:55,368 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 08:46:55,368 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 08:46:55,368 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 08:46:55,369 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 08:46:55,369 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 08:46:55,369 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 08:46:55,369 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-25 08:46:55,370 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-25 08:46:55,370 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-25 08:46:55,371 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 08:46:55,371 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 08:46:55,372 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 08:46:55,372 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 08:46:55,372 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 08:46:55,372 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 08:46:55,372 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 08:46:55,373 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 08:46:55,373 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 08:46:55,373 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 08:46:55,373 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 08:46:55,373 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 08:46:55,373 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 08:46:55,373 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 08:46:55,373 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 08:46:55,374 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 08:46:55,374 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 08:46:55,374 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 08:46:55,374 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 08:46:55,374 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 08:46:55,374 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 08:46:55,375 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 08:46:55,375 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 08:46:55,375 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 08:46:55,375 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 08:46:55,375 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 08:46:55,375 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 08:46:55,375 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 08:46:55,376 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 08:46:55,376 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 08:46:55,376 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 08:46:55,376 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-25 08:46:55,376 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 08:46:55,377 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 08:46:55,377 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 08:46:55,377 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 08:46:55,377 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 08:46:55,377 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 08:46:55,377 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 08:46:55,378 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 08:46:55,378 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 08:46:55,378 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 08:46:55,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 08:46:55,378 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 08:46:55,378 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 08:46:55,379 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-25 08:46:55,379 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-25 08:46:55,379 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 08:46:55,379 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 08:46:55,379 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 08:46:55,379 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 08:46:55,379 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 08:46:55,380 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 08:46:55,380 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 08:46:55,380 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 08:46:55,380 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 08:46:55,380 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 08:46:55,380 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 08:46:55,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 08:46:55,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 08:46:55,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 08:46:55,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 08:46:55,381 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 08:46:55,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 08:46:55,382 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 08:46:55,382 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 08:46:55,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 08:46:55,382 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 08:46:55,382 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 08:46:55,382 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 08:46:55,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 08:46:55,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 08:46:55,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 08:46:56,530 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 08:46:56,530 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 08:46:56,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:46:56 BoogieIcfgContainer [2020-09-25 08:46:56,539 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 08:46:56,540 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 08:46:56,540 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 08:46:56,544 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 08:46:56,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:46:54" (1/3) ... [2020-09-25 08:46:56,546 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66f273e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:46:56, skipping insertion in model container [2020-09-25 08:46:56,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:46:55" (2/3) ... [2020-09-25 08:46:56,546 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66f273e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:46:56, skipping insertion in model container [2020-09-25 08:46:56,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:46:56" (3/3) ... [2020-09-25 08:46:56,549 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product07.cil.c [2020-09-25 08:46:56,560 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 08:46:56,573 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 08:46:56,597 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 08:46:56,634 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 08:46:56,634 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 08:46:56,634 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 08:46:56,635 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 08:46:56,635 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 08:46:56,635 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 08:46:56,635 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 08:46:56,635 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 08:46:56,666 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states. [2020-09-25 08:46:56,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 08:46:56,685 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:46:56,687 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:46:56,688 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:46:56,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:46:56,697 INFO L82 PathProgramCache]: Analyzing trace with hash 1976850470, now seen corresponding path program 1 times [2020-09-25 08:46:56,709 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:46:56,709 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [185653227] [2020-09-25 08:46:56,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:46:57,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:57,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:57,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:59,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:59,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:47:01,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:47:02,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:47:02,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-25 08:47:02,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:47:02,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-09-25 08:47:02,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:47:02,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:47:02,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:47:02,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 08:47:02,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:47:02,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 08:47:02,580 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:47:02,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:47:02,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:47:02,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:47:02,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:47:02,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:47:02,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:47:02,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-09-25 08:47:02,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:47:02,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:47:02,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:47:02,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:47:02,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:47:02,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:47:02,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:47:02,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:47:02,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:47:02,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:47:02,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:47:02,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:47:02,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:47:02,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:47:02,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:47:02,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:47:02,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:47:02,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:47:02,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:47:02,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:47:02,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:47:02,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:47:02,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:47:02,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:47:02,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:47:02,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:47:02,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:47:02,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:47:02,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:47:02,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:47:02,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:47:02,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:47:02,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:47:02,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:47:02,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:47:02,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:47:02,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:47:02,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:47:02,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:47:02,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:47:02,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:47:02,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:47:02,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:47:02,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:47:02,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:47:02,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:47:02,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:47:02,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:47:02,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:47:02,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:47:02,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:47:02,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:47:02,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:47:02,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:47:02,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:47:02,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:47:02,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:47:02,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:47:02,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:47:02,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:47:02,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:47:02,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:47:02,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:47:02,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:47:02,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:47:02,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:47:02,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:47:02,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:47:02,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:47:02,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:47:02,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:47:02,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 08:47:02,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:47:02,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:47:02,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:47:02,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 08:47:02,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:47:02,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:47:02,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:47:02,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:47:02,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:47:02,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 08:47:02,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:47:02,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:47:02,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:47:02,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:47:02,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:47:02,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:47:02,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:47:02,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:47:02,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:47:02,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:47:02,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:47:02,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:47:02,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:47:02,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:47:02,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:47:02,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 08:47:02,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:47:02,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:47:02,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:47:02,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:47:02,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:47:02,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:47:02,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:47:02,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:47:02,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:47:02,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:47:02,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:47:02,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:47:02,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 08:47:02,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:47:02,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:47:02,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:47:02,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:47:02,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:47:02,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:47:02,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:47:02,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:47:02,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:47:02,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:47:02,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:47:02,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:47:02,979 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 08:47:02,980 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [185653227] [2020-09-25 08:47:02,982 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:47:02,983 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 08:47:02,984 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668310505] [2020-09-25 08:47:02,994 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 08:47:02,995 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:47:03,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 08:47:03,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 08:47:03,016 INFO L87 Difference]: Start difference. First operand 288 states. Second operand 4 states. [2020-09-25 08:47:04,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:47:04,294 INFO L93 Difference]: Finished difference Result 434 states and 513 transitions. [2020-09-25 08:47:04,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 08:47:04,297 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-09-25 08:47:04,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:47:04,317 INFO L225 Difference]: With dead ends: 434 [2020-09-25 08:47:04,318 INFO L226 Difference]: Without dead ends: 282 [2020-09-25 08:47:04,323 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 08:47:04,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-09-25 08:47:04,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 237. [2020-09-25 08:47:04,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2020-09-25 08:47:04,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 257 transitions. [2020-09-25 08:47:04,430 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 257 transitions. Word has length 160 [2020-09-25 08:47:04,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:47:04,432 INFO L479 AbstractCegarLoop]: Abstraction has 237 states and 257 transitions. [2020-09-25 08:47:04,432 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 08:47:04,432 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 257 transitions. [2020-09-25 08:47:04,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 08:47:04,437 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:47:04,438 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:47:04,438 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 08:47:04,439 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:47:04,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:47:04,439 INFO L82 PathProgramCache]: Analyzing trace with hash 150247797, now seen corresponding path program 1 times [2020-09-25 08:47:04,439 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:47:04,440 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [723013916] [2020-09-25 08:47:04,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:47:04,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:47:04,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:47:04,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:47:06,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:47:06,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:47:07,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:47:09,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:47:09,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-25 08:47:09,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:47:09,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-25 08:47:09,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:47:09,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:47:09,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:47:09,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 08:47:09,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 08:47:09,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:47:09,861 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:47:09,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:47:09,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:47:09,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:47:09,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:47:09,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:47:09,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:47:09,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-25 08:47:09,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:47:09,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:47:09,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:47:09,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:47:09,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:47:09,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:47:10,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:47:10,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:47:10,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:47:10,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:47:10,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:47:10,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:47:10,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:47:10,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:47:10,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:47:10,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:47:10,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:47:10,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:47:10,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:47:10,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:47:10,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:47:10,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:47:10,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:47:10,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:47:10,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:47:10,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:47:10,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:47:10,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:47:10,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:47:10,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:47:10,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:47:10,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:47:10,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:47:10,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:47:10,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:47:10,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:47:10,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:47:10,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:47:10,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:47:10,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:47:10,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:47:10,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:47:10,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:47:10,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:47:10,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:47:10,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:47:10,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:47:10,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:47:10,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:47:10,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:47:10,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:47:10,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:47:10,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:47:10,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:47:10,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:47:10,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:47:10,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:47:10,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:47:10,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:47:10,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:47:10,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:47:10,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:47:10,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:47:10,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:47:10,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:47:10,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:47:10,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:47:10,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:47:10,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:47:10,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:47:10,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:47:10,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 08:47:10,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:47:10,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:47:10,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:47:10,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 08:47:10,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:47:10,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:47:10,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:47:10,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:47:10,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:47:10,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 08:47:10,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:47:10,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:47:10,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:47:10,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:47:10,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:47:10,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:47:10,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:47:10,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:47:10,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:47:10,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:47:10,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:47:10,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:47:10,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:47:10,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:47:10,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:47:10,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 08:47:10,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:47:10,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:47:10,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:47:10,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:47:10,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:47:10,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:47:10,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:47:10,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:47:10,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:47:10,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:47:10,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:47:10,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:47:10,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 08:47:10,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:47:10,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:47:10,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:47:10,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:47:10,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:47:10,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:47:10,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:47:10,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:47:10,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:47:10,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:47:10,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:47:10,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:47:10,110 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 08:47:10,110 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [723013916] [2020-09-25 08:47:10,111 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:47:10,111 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 08:47:10,111 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103137962] [2020-09-25 08:47:10,113 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 08:47:10,114 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:47:10,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 08:47:10,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:47:10,114 INFO L87 Difference]: Start difference. First operand 237 states and 257 transitions. Second operand 5 states. [2020-09-25 08:47:10,803 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:47:11,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:47:11,703 INFO L93 Difference]: Finished difference Result 357 states and 401 transitions. [2020-09-25 08:47:11,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 08:47:11,704 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-09-25 08:47:11,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:47:11,710 INFO L225 Difference]: With dead ends: 357 [2020-09-25 08:47:11,710 INFO L226 Difference]: Without dead ends: 271 [2020-09-25 08:47:11,713 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:47:11,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-09-25 08:47:11,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 227. [2020-09-25 08:47:11,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2020-09-25 08:47:11,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 244 transitions. [2020-09-25 08:47:11,784 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 244 transitions. Word has length 161 [2020-09-25 08:47:11,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:47:11,785 INFO L479 AbstractCegarLoop]: Abstraction has 227 states and 244 transitions. [2020-09-25 08:47:11,785 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 08:47:11,786 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 244 transitions. [2020-09-25 08:47:11,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-25 08:47:11,789 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:47:11,789 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:47:11,789 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 08:47:11,789 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:47:11,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:47:11,790 INFO L82 PathProgramCache]: Analyzing trace with hash -1684061971, now seen corresponding path program 1 times [2020-09-25 08:47:11,790 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:47:11,790 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [128809124] [2020-09-25 08:47:11,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:47:11,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:47:11,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:47:12,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:47:12,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:47:15,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:47:16,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:47:16,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-25 08:47:16,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:47:16,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-09-25 08:47:16,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:47:16,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:47:16,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:47:16,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 08:47:16,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-09-25 08:47:16,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:47:17,234 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:47:17,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:47:17,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:47:17,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:47:17,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:47:17,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:47:17,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:47:17,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 236 [2020-09-25 08:47:17,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:47:17,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:47:17,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:47:17,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:47:17,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 08:47:17,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:47:17,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:47:17,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:47:17,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:47:17,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:47:17,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:47:17,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:47:17,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:47:17,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:47:17,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:47:17,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:47:17,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:47:17,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:47:17,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:47:17,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:47:17,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:47:17,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:47:17,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:47:17,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:47:17,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:47:17,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:47:17,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:47:17,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:47:17,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:47:17,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:47:17,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:47:17,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:47:17,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:47:17,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:47:17,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:47:17,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:47:17,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:47:17,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:47:17,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:47:17,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:47:17,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:47:17,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:47:17,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:47:17,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:47:17,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:47:17,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:47:17,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:47:17,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:47:17,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:47:17,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:47:17,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:47:17,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:47:17,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:47:17,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:47:17,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:47:17,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:47:17,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:47:17,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:47:17,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:47:17,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:47:17,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:47:17,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:47:17,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:47:17,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:47:17,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:47:17,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:47:17,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:47:17,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:47:17,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:47:17,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 08:47:17,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:47:17,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 08:47:17,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:47:17,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:47:17,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:47:17,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 08:47:17,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:47:17,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:47:17,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:47:17,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:47:17,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:47:17,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:47:17,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 08:47:17,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:47:17,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:47:17,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:47:17,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:47:17,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:47:17,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:47:17,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:47:17,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:47:17,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:47:17,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:47:17,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:47:17,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:47:17,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:47:17,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:47:17,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 08:47:17,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:47:17,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:47:17,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:47:17,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:47:17,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:47:17,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:47:17,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:47:17,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:47:17,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:47:17,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:47:17,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:47:17,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:47:17,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 08:47:17,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:47:17,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:47:17,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:47:17,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:47:17,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:47:17,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:47:17,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:47:17,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:47:17,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:47:17,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:47:17,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:47:17,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:47:17,718 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 08:47:17,719 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [128809124] [2020-09-25 08:47:17,719 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:47:17,719 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 08:47:17,720 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347537636] [2020-09-25 08:47:17,721 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 08:47:17,722 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:47:17,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 08:47:17,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:47:17,724 INFO L87 Difference]: Start difference. First operand 227 states and 244 transitions. Second operand 5 states. [2020-09-25 08:47:18,410 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:47:19,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:47:19,629 INFO L93 Difference]: Finished difference Result 501 states and 572 transitions. [2020-09-25 08:47:19,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 08:47:19,630 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 170 [2020-09-25 08:47:19,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:47:19,635 INFO L225 Difference]: With dead ends: 501 [2020-09-25 08:47:19,635 INFO L226 Difference]: Without dead ends: 389 [2020-09-25 08:47:19,637 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:47:19,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2020-09-25 08:47:19,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 333. [2020-09-25 08:47:19,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 333 states. [2020-09-25 08:47:19,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 368 transitions. [2020-09-25 08:47:19,693 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 368 transitions. Word has length 170 [2020-09-25 08:47:19,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:47:19,694 INFO L479 AbstractCegarLoop]: Abstraction has 333 states and 368 transitions. [2020-09-25 08:47:19,694 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 08:47:19,694 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 368 transitions. [2020-09-25 08:47:19,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-09-25 08:47:19,697 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:47:19,697 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:47:19,697 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 08:47:19,697 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:47:19,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:47:19,698 INFO L82 PathProgramCache]: Analyzing trace with hash -1188214926, now seen corresponding path program 1 times [2020-09-25 08:47:19,698 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:47:19,698 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1622734785] [2020-09-25 08:47:19,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:47:19,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:47:19,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:47:19,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:47:20,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:47:22,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:47:24,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:47:24,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 217 [2020-09-25 08:47:24,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:47:24,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-09-25 08:47:24,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:47:24,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:47:24,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 08:47:24,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 160 [2020-09-25 08:47:24,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 08:47:24,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:47:25,163 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:47:25,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:47:25,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:47:25,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:47:25,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:47:25,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:47:25,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:47:25,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-25 08:47:25,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:47:25,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:47:25,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:47:25,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:47:25,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:47:25,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:47:25,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:47:25,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:47:25,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:47:25,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:47:25,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:47:25,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:47:25,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:47:25,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:47:25,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:47:25,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:47:25,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:47:25,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:47:25,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:47:25,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:47:25,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:47:25,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:47:25,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:47:25,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:47:25,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:47:25,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:47:25,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:47:25,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:47:25,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:47:25,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:47:25,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:47:25,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:47:25,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:47:25,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:47:25,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:47:25,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:47:25,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:47:25,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:47:25,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:47:25,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:47:25,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:47:25,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:47:25,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:47:25,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:47:25,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:47:25,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:47:25,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:47:25,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:47:25,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:47:25,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:47:25,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:47:25,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:47:25,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:47:25,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:47:25,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:47:25,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:47:25,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:47:25,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:47:25,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:47:25,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:47:25,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:47:25,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:47:25,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:47:25,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:47:25,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:47:25,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:47:25,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:47:25,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:47:25,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:47:25,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:47:25,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:47:25,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 08:47:25,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:47:25,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:47:25,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:47:25,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 08:47:25,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:47:25,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:47:25,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:47:25,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:47:25,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:47:25,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:47:25,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 08:47:25,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:47:25,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:47:25,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:47:25,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:47:25,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:47:25,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:47:25,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:47:25,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:47:25,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:47:25,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:47:25,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:47:25,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:47:25,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:47:25,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:47:25,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 08:47:25,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:47:25,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:47:25,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:47:25,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 08:47:25,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:47:25,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 08:47:25,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:47:25,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:47:25,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:47:25,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 08:47:25,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 08:47:25,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:47:25,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:47:25,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:47:25,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:47:25,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:47:25,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:47:25,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:47:25,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:47:25,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:47:25,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:47:25,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:47:25,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:47:25,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:47:25,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:47:25,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-25 08:47:25,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:47:25,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:47:25,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:47:25,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:47:25,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:47:25,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:47:25,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:47:25,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:47:25,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:47:25,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:47:25,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:47:25,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:47:25,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-09-25 08:47:25,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:47:25,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:47:25,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:47:25,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:47:25,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:47:25,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:47:25,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:47:25,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:47:25,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:47:25,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:47:25,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:47:25,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:47:25,610 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 08:47:25,611 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1622734785] [2020-09-25 08:47:25,611 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:47:25,611 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-25 08:47:25,612 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056721335] [2020-09-25 08:47:25,613 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 08:47:25,613 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:47:25,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 08:47:25,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-09-25 08:47:25,614 INFO L87 Difference]: Start difference. First operand 333 states and 368 transitions. Second operand 12 states. [2020-09-25 08:47:26,846 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:47:27,163 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 08:47:27,504 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:47:28,020 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 08:47:28,344 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:47:29,267 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:47:29,605 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 08:47:30,050 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:47:30,375 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:47:30,676 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 08:47:30,991 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 08:47:31,325 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:47:31,649 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 08:47:31,945 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 08:47:32,317 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 08:47:32,748 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 08:47:33,476 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 08:47:33,822 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 08:47:34,678 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:47:35,111 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 08:47:35,508 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 08:47:36,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:47:36,012 INFO L93 Difference]: Finished difference Result 1077 states and 1357 transitions. [2020-09-25 08:47:36,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-09-25 08:47:36,014 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 178 [2020-09-25 08:47:36,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:47:36,015 INFO L225 Difference]: With dead ends: 1077 [2020-09-25 08:47:36,015 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 08:47:36,023 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=390, Invalid=1332, Unknown=0, NotChecked=0, Total=1722 [2020-09-25 08:47:36,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 08:47:36,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 08:47:36,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 08:47:36,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 08:47:36,024 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 178 [2020-09-25 08:47:36,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:47:36,024 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 08:47:36,024 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 08:47:36,025 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 08:47:36,025 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 08:47:36,025 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 08:47:36,028 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 08:47:36,242 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:47:36,418 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 08:47:36,601 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 08:47:36,770 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:47:36,936 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 08:47:37,110 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 08:47:37,266 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 08:47:37,417 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:47:37,576 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 08:47:37,725 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:47:37,885 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 08:47:38,043 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 08:47:38,333 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 199 [2020-09-25 08:47:38,493 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:47:38,766 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 199 [2020-09-25 08:47:38,923 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 08:47:39,076 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:47:39,235 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 08:47:39,385 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:47:39,533 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:47:39,682 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:47:39,831 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:47:39,984 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 08:47:40,138 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 08:47:40,293 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 08:47:40,447 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:47:40,603 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 08:47:40,761 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 08:47:40,915 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 08:47:41,066 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:47:41,233 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:47:41,381 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:47:41,539 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 08:47:41,696 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 08:47:41,850 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:47:42,002 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:47:42,150 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:47:42,304 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 08:47:42,457 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 08:47:42,609 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 08:47:42,762 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:47:42,915 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 192