/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product46.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:36:46,242 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:36:46,246 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:36:46,275 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:36:46,275 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:36:46,284 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:36:46,286 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:36:46,289 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:36:46,292 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:36:46,293 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:36:46,294 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:36:46,297 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:36:46,298 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:36:46,302 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:36:46,305 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:36:46,307 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:36:46,309 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:36:46,311 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:36:46,313 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:36:46,320 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:36:46,321 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:36:46,323 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:36:46,324 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:36:46,325 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:36:46,340 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:36:46,340 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:36:46,340 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:36:46,341 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:36:46,344 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:36:46,345 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:36:46,345 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:36:46,346 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:36:46,353 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:36:46,354 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:36:46,355 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:36:46,355 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:36:46,356 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:36:46,356 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:36:46,356 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:36:46,361 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:36:46,362 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:36:46,363 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 07:36:46,401 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:36:46,402 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:36:46,403 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:36:46,404 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:36:46,404 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:36:46,404 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:36:46,404 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:36:46,404 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:36:46,405 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:36:46,405 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:36:46,405 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:36:46,405 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:36:46,405 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:36:46,405 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:36:46,406 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:36:46,406 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:36:46,406 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:36:46,406 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:36:46,406 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:36:46,407 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:36:46,407 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:36:46,407 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:36:46,407 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:36:46,408 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:36:46,408 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:36:46,408 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:36:46,408 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:36:46,408 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:36:46,409 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:36:46,409 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 07:36:46,891 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:36:46,909 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:36:46,914 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:36:46,916 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:36:46,916 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:36:46,918 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product46.cil.c [2020-09-25 07:36:47,008 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/35a6eaeff/7de0120ce89644fdbfe3e876a28f5f79/FLAGfd6322204 [2020-09-25 07:36:47,719 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:36:47,720 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product46.cil.c [2020-09-25 07:36:47,743 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/35a6eaeff/7de0120ce89644fdbfe3e876a28f5f79/FLAGfd6322204 [2020-09-25 07:36:47,930 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/35a6eaeff/7de0120ce89644fdbfe3e876a28f5f79 [2020-09-25 07:36:47,943 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:36:47,949 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:36:47,950 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:36:47,950 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:36:47,955 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:36:47,956 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:36:47" (1/1) ... [2020-09-25 07:36:47,961 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2830e110 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:36:47, skipping insertion in model container [2020-09-25 07:36:47,961 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:36:47" (1/1) ... [2020-09-25 07:36:47,972 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:36:48,046 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:36:48,531 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:36:48,546 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:36:48,630 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:36:48,666 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:36:48,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:36:48 WrapperNode [2020-09-25 07:36:48,667 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:36:48,668 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:36:48,668 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:36:48,668 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:36:48,684 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:36:48" (1/1) ... [2020-09-25 07:36:48,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:36:48" (1/1) ... [2020-09-25 07:36:48,708 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:36:48" (1/1) ... [2020-09-25 07:36:48,708 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:36:48" (1/1) ... [2020-09-25 07:36:48,738 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:36:48" (1/1) ... [2020-09-25 07:36:48,749 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:36:48" (1/1) ... [2020-09-25 07:36:48,755 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:36:48" (1/1) ... [2020-09-25 07:36:48,763 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:36:48,764 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:36:48,764 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:36:48,764 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:36:48,766 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:36:48" (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 07:36:48,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:36:48,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:36:48,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 07:36:48,847 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 07:36:48,847 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 07:36:48,847 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 07:36:48,848 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 07:36:48,849 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:36:48,849 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 07:36:48,850 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 07:36:48,850 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 07:36:48,850 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 07:36:48,850 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 07:36:48,850 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 07:36:48,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 07:36:48,852 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 07:36:48,852 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 07:36:48,852 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 07:36:48,852 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 07:36:48,853 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 07:36:48,853 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 07:36:48,854 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 07:36:48,854 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 07:36:48,854 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 07:36:48,856 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 07:36:48,857 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 07:36:48,857 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 07:36:48,857 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 07:36:48,858 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 07:36:48,858 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 07:36:48,858 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 07:36:48,858 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 07:36:48,858 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 07:36:48,858 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 07:36:48,859 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 07:36:48,859 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 07:36:48,859 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 07:36:48,859 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 07:36:48,859 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 07:36:48,859 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 07:36:48,859 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:36:48,859 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:36:48,860 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 07:36:48,860 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 07:36:48,860 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 07:36:48,860 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 07:36:48,860 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 07:36:48,860 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 07:36:48,860 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 07:36:48,860 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 07:36:48,861 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 07:36:48,861 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 07:36:48,861 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 07:36:48,861 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 07:36:48,861 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 07:36:48,861 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:36:48,862 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 07:36:48,862 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 07:36:48,862 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 07:36:48,862 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 07:36:48,862 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 07:36:48,862 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 07:36:48,862 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 07:36:48,863 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 07:36:48,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 07:36:48,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 07:36:48,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 07:36:48,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 07:36:48,863 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 07:36:48,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 07:36:48,863 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 07:36:48,864 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 07:36:48,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 07:36:48,864 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 07:36:48,864 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 07:36:48,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 07:36:48,864 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 07:36:48,865 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 07:36:48,865 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 07:36:48,865 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 07:36:48,865 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 07:36:48,865 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 07:36:48,865 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 07:36:48,866 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 07:36:48,866 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 07:36:48,866 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 07:36:48,866 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 07:36:48,866 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 07:36:48,866 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 07:36:48,866 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 07:36:48,866 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 07:36:48,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:36:48,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 07:36:48,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:36:50,146 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:36:50,146 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 07:36:50,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:36:50 BoogieIcfgContainer [2020-09-25 07:36:50,155 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:36:50,156 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:36:50,157 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:36:50,161 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:36:50,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:36:47" (1/3) ... [2020-09-25 07:36:50,162 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2100b777 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:36:50, skipping insertion in model container [2020-09-25 07:36:50,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:36:48" (2/3) ... [2020-09-25 07:36:50,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2100b777 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:36:50, skipping insertion in model container [2020-09-25 07:36:50,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:36:50" (3/3) ... [2020-09-25 07:36:50,166 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product46.cil.c [2020-09-25 07:36:50,179 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:36:50,191 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:36:50,216 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:36:50,252 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:36:50,252 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:36:50,252 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:36:50,252 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:36:50,252 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:36:50,252 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:36:50,253 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:36:50,253 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:36:50,285 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states. [2020-09-25 07:36:50,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 07:36:50,304 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:36:50,306 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:36:50,306 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:36:50,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:36:50,315 INFO L82 PathProgramCache]: Analyzing trace with hash 2069436890, now seen corresponding path program 1 times [2020-09-25 07:36:50,327 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:36:50,328 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [909142034] [2020-09-25 07:36:50,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:36:50,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:50,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:51,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:52,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:53,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:55,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:55,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 07:36:55,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:36:55,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 07:36:55,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:55,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:55,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:55,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 07:36:55,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:55,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 07:36:56,359 WARN L193 SmtUtils]: Spent 420.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:36:56,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:36:56,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:56,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:56,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:56,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:36:56,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:56,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-09-25 07:36:56,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:56,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:56,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:56,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:36:56,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:56,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:36:56,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:36:56,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:56,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:56,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:56,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:36:56,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:56,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:36:56,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:56,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:56,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:56,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:36:56,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:56,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:56,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:36:56,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:56,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:56,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:56,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:36:56,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:56,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:36:56,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:56,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:56,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:56,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:36:56,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:56,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:56,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:36:56,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:56,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:56,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:56,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:36:56,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:56,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:36:56,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:56,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:56,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:56,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:36:56,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:56,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:56,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:36:56,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:56,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:56,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:56,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:36:56,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:56,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:36:56,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:56,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:56,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:56,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:36:56,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:56,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:56,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 07:36:56,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:56,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:56,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:56,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:36:56,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:56,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:36:56,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:56,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:56,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:56,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:36:56,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:56,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:56,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 07:36:56,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:56,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:56,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:56,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:36:56,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:56,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:36:56,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:56,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:56,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:56,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:36:56,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:56,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:56,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:36:56,761 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [909142034] [2020-09-25 07:36:56,763 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:36:56,764 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 07:36:56,765 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350942951] [2020-09-25 07:36:56,775 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 07:36:56,775 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:36:56,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 07:36:56,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:36:56,797 INFO L87 Difference]: Start difference. First operand 319 states. Second operand 3 states. [2020-09-25 07:36:58,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:36:58,497 INFO L93 Difference]: Finished difference Result 506 states and 600 transitions. [2020-09-25 07:36:58,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 07:36:58,499 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 07:36:58,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:36:58,526 INFO L225 Difference]: With dead ends: 506 [2020-09-25 07:36:58,527 INFO L226 Difference]: Without dead ends: 312 [2020-09-25 07:36:58,538 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:36:58,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2020-09-25 07:36:58,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 268. [2020-09-25 07:36:58,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2020-09-25 07:36:58,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 291 transitions. [2020-09-25 07:36:58,751 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 291 transitions. Word has length 142 [2020-09-25 07:36:58,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:36:58,753 INFO L479 AbstractCegarLoop]: Abstraction has 268 states and 291 transitions. [2020-09-25 07:36:58,753 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 07:36:58,753 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 291 transitions. [2020-09-25 07:36:58,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 07:36:58,769 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:36:58,770 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:36:58,770 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:36:58,771 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:36:58,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:36:58,771 INFO L82 PathProgramCache]: Analyzing trace with hash 777586008, now seen corresponding path program 1 times [2020-09-25 07:36:58,771 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:36:58,772 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1454879627] [2020-09-25 07:36:58,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:36:58,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:58,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:58,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:00,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:01,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:03,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:03,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 07:37:03,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:37:03,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-09-25 07:37:03,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:03,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:03,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:37:03,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 07:37:03,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:37:03,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:04,150 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:37:04,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:37:04,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:04,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:04,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:04,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:37:04,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:04,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-09-25 07:37:04,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:04,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:04,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:04,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:04,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:04,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:04,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:37:04,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:04,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:04,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:04,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:04,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:04,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:37:04,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:04,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:04,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:04,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:04,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:04,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:04,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:37:04,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:04,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:04,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:04,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:04,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:04,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:37:04,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:04,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:04,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:04,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:04,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:04,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:04,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:37:04,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:04,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:04,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:04,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:37:04,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:04,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:37:04,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:04,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:04,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:04,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:04,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:04,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:04,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:37:04,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:04,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:04,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:04,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:04,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:04,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:37:04,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:04,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:04,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:04,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:04,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:04,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:04,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 07:37:04,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:04,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:04,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:04,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:37:04,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:04,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:37:04,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:04,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:04,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:04,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:37:04,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:04,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:37:04,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 07:37:04,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:04,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:04,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:04,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:37:04,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:04,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:37:04,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:04,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:04,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:04,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:37:04,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:04,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:04,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:37:04,425 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1454879627] [2020-09-25 07:37:04,425 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:37:04,429 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:37:04,430 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310988083] [2020-09-25 07:37:04,433 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:37:04,433 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:37:04,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:37:04,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:37:04,434 INFO L87 Difference]: Start difference. First operand 268 states and 291 transitions. Second operand 4 states. [2020-09-25 07:37:05,023 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:37:06,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:37:06,187 INFO L93 Difference]: Finished difference Result 419 states and 471 transitions. [2020-09-25 07:37:06,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:37:06,189 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 07:37:06,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:37:06,199 INFO L225 Difference]: With dead ends: 419 [2020-09-25 07:37:06,199 INFO L226 Difference]: Without dead ends: 295 [2020-09-25 07:37:06,202 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:37:06,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2020-09-25 07:37:06,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 258. [2020-09-25 07:37:06,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2020-09-25 07:37:06,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 278 transitions. [2020-09-25 07:37:06,269 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 278 transitions. Word has length 143 [2020-09-25 07:37:06,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:37:06,270 INFO L479 AbstractCegarLoop]: Abstraction has 258 states and 278 transitions. [2020-09-25 07:37:06,270 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:37:06,270 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 278 transitions. [2020-09-25 07:37:06,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 07:37:06,275 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:37:06,275 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:37:06,275 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:37:06,275 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:37:06,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:37:06,276 INFO L82 PathProgramCache]: Analyzing trace with hash -956744923, now seen corresponding path program 1 times [2020-09-25 07:37:06,276 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:37:06,276 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1592614763] [2020-09-25 07:37:06,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:37:06,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:06,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:06,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:07,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:08,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:11,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:11,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 07:37:11,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:37:11,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-09-25 07:37:11,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:11,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:11,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:37:11,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 07:37:11,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:37:11,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:11,665 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:37:11,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:37:11,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:11,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:11,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:11,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:37:11,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:11,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-25 07:37:11,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:11,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:11,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:11,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:11,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:11,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:11,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:37:11,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:11,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:11,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:11,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:11,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:11,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:37:11,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:11,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:11,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:11,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:11,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:11,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:11,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:37:11,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:11,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:11,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:11,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:11,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:11,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:37:11,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:11,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:11,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:11,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:11,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:11,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:11,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:37:11,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:11,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:11,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:11,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:37:11,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:11,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:37:11,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:11,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:11,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:11,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:11,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:11,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:11,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:37:11,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:11,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:11,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:11,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:11,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:11,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:37:11,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:11,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:11,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:11,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:11,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:11,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:11,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 07:37:11,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:11,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:11,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:11,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:37:11,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:11,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:37:11,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:11,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:11,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:37:11,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:11,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 07:37:11,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:11,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 07:37:11,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:11,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:11,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:11,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:37:11,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:11,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:37:11,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:11,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:11,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:11,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:37:11,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:11,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:11,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 07:37:11,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:11,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:11,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:11,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:37:11,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:11,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:37:11,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:11,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:11,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:11,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:37:11,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:11,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:11,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:37:11,957 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1592614763] [2020-09-25 07:37:11,958 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:37:11,958 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:37:11,958 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357337704] [2020-09-25 07:37:11,959 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:37:11,959 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:37:11,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:37:11,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:37:11,960 INFO L87 Difference]: Start difference. First operand 258 states and 278 transitions. Second operand 5 states. [2020-09-25 07:37:12,635 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:37:13,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:37:13,701 INFO L93 Difference]: Finished difference Result 465 states and 533 transitions. [2020-09-25 07:37:13,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:37:13,701 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-25 07:37:13,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:37:13,709 INFO L225 Difference]: With dead ends: 465 [2020-09-25 07:37:13,710 INFO L226 Difference]: Without dead ends: 317 [2020-09-25 07:37:13,711 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:37:13,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-09-25 07:37:13,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 258. [2020-09-25 07:37:13,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2020-09-25 07:37:13,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 277 transitions. [2020-09-25 07:37:13,775 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 277 transitions. Word has length 156 [2020-09-25 07:37:13,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:37:13,777 INFO L479 AbstractCegarLoop]: Abstraction has 258 states and 277 transitions. [2020-09-25 07:37:13,778 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:37:13,778 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 277 transitions. [2020-09-25 07:37:13,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-09-25 07:37:13,780 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:37:13,780 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:37:13,781 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:37:13,781 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:37:13,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:37:13,782 INFO L82 PathProgramCache]: Analyzing trace with hash 1329661324, now seen corresponding path program 1 times [2020-09-25 07:37:13,782 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:37:13,782 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1525376197] [2020-09-25 07:37:13,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:37:13,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:13,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:14,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:14,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:16,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:16,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:17,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:17,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:18,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:18,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-25 07:37:18,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 07:37:18,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-09-25 07:37:18,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:18,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:18,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:37:18,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 152 [2020-09-25 07:37:18,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 07:37:18,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:19,230 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:37:19,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:37:19,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:19,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:19,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:19,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:37:19,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:19,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-09-25 07:37:19,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:19,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:19,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:19,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:19,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:19,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:19,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:37:19,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:19,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:19,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:19,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:19,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:19,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:37:19,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:19,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:19,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:19,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:19,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:19,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:19,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:37:19,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:19,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:19,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:19,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:19,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:19,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:37:19,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:19,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:19,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:19,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:19,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:19,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:19,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:37:19,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:19,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:19,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:19,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:37:19,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:19,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:37:19,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:19,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:19,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:19,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:19,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:19,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:19,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:37:19,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:19,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:19,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:19,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:19,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:19,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:37:19,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:19,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:19,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:19,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:19,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:19,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:37:19,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 07:37:19,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:19,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:19,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:19,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:37:19,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:19,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:37:19,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:19,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:19,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:19,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:19,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:19,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:19,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 07:37:19,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:19,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:19,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:19,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:19,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 07:37:19,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:37:19,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 07:37:19,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:19,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:19,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:37:19,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 07:37:19,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 07:37:19,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:19,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:37:19,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:19,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:19,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:19,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:37:19,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:19,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 07:37:19,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:19,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:19,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:37:19,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 07:37:19,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 07:37:19,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:19,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:37:19,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:19,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:19,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:19,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:19,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:19,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:37:19,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:19,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:19,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:37:19,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:19,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:37:19,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:19,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 07:37:19,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:19,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:19,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:19,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:37:19,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:19,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:37:19,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:19,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:19,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:19,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:37:19,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:19,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:19,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 07:37:19,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:19,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:19,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:19,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:37:19,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:19,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:37:19,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:19,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:19,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:19,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:37:19,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:19,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:19,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:37:19,718 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1525376197] [2020-09-25 07:37:19,718 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:37:19,718 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 07:37:19,720 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653424109] [2020-09-25 07:37:19,720 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 07:37:19,721 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:37:19,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 07:37:19,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:37:19,721 INFO L87 Difference]: Start difference. First operand 258 states and 277 transitions. Second operand 7 states. [2020-09-25 07:37:20,302 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:37:22,036 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:37:23,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:37:23,130 INFO L93 Difference]: Finished difference Result 658 states and 775 transitions. [2020-09-25 07:37:23,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 07:37:23,131 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 169 [2020-09-25 07:37:23,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:37:23,136 INFO L225 Difference]: With dead ends: 658 [2020-09-25 07:37:23,137 INFO L226 Difference]: Without dead ends: 510 [2020-09-25 07:37:23,138 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-09-25 07:37:23,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2020-09-25 07:37:23,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 383. [2020-09-25 07:37:23,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 383 states. [2020-09-25 07:37:23,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 410 transitions. [2020-09-25 07:37:23,192 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 410 transitions. Word has length 169 [2020-09-25 07:37:23,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:37:23,193 INFO L479 AbstractCegarLoop]: Abstraction has 383 states and 410 transitions. [2020-09-25 07:37:23,193 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 07:37:23,194 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 410 transitions. [2020-09-25 07:37:23,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-09-25 07:37:23,196 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:37:23,196 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:37:23,197 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:37:23,197 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:37:23,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:37:23,197 INFO L82 PathProgramCache]: Analyzing trace with hash -828711732, now seen corresponding path program 1 times [2020-09-25 07:37:23,198 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:37:23,198 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [488754773] [2020-09-25 07:37:23,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:37:23,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:23,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:24,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:24,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:24,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:28,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:28,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 234 [2020-09-25 07:37:28,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:37:28,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-09-25 07:37:28,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:28,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:28,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 07:37:28,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 152 [2020-09-25 07:37:28,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 07:37:28,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:28,600 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:37:28,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:37:28,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:28,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:28,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:28,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:37:28,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:28,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-25 07:37:28,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:28,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:28,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:28,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:28,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:28,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:37:28,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:37:28,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:28,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:28,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:28,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:28,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:28,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:37:28,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:28,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:28,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:28,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:28,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:28,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:28,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:37:28,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:28,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:28,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:28,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:28,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:28,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:37:28,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:28,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:28,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:28,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:28,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:28,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:28,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:37:28,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:28,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:28,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:28,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:37:28,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:28,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:37:28,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:28,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:28,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:28,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:28,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:28,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:28,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:37:28,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:28,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:28,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:28,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:28,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:28,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:37:28,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:28,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:28,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:28,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:28,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:28,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:28,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 07:37:28,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:28,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:28,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:28,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:37:28,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:28,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:37:28,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:28,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:28,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:28,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:28,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:28,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:37:28,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 07:37:28,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:28,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:28,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:28,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:28,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:28,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 07:37:28,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:37:28,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-09-25 07:37:28,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:28,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:28,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:37:28,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:28,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:37:28,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:28,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:37:28,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:28,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:28,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:28,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 07:37:28,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:28,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 07:37:28,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:28,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:28,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:37:28,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:28,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:37:28,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:28,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:37:28,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:28,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:29,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:29,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 07:37:29,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:29,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 07:37:29,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:29,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:29,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:37:29,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:29,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 07:37:29,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:29,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:37:29,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:29,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:29,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:29,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:37:29,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:29,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:37:29,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:29,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:29,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:29,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:29,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:29,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:29,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 07:37:29,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:29,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:29,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:29,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:29,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:29,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:37:29,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:29,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:29,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:37:29,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:29,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:37:29,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:29,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-25 07:37:29,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:29,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:29,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:29,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:37:29,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:29,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:37:29,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:29,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:29,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:37:29,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:29,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:37:29,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:29,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-25 07:37:29,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:29,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:29,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:29,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:37:29,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:29,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:37:29,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:29,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:29,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:37:29,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:29,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:37:29,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:29,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:37:29,170 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [488754773] [2020-09-25 07:37:29,170 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:37:29,170 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 07:37:29,171 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238092162] [2020-09-25 07:37:29,171 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 07:37:29,172 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:37:29,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 07:37:29,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 07:37:29,173 INFO L87 Difference]: Start difference. First operand 383 states and 410 transitions. Second operand 10 states. [2020-09-25 07:37:29,776 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:37:31,439 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:37:31,830 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:37:32,174 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:37:32,508 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:37:32,836 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:37:33,311 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:37:33,650 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:37:34,023 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:37:35,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:37:35,218 INFO L93 Difference]: Finished difference Result 513 states and 597 transitions. [2020-09-25 07:37:35,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 07:37:35,224 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 193 [2020-09-25 07:37:35,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:37:35,228 INFO L225 Difference]: With dead ends: 513 [2020-09-25 07:37:35,229 INFO L226 Difference]: Without dead ends: 510 [2020-09-25 07:37:35,229 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-25 07:37:35,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2020-09-25 07:37:35,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 383. [2020-09-25 07:37:35,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 383 states. [2020-09-25 07:37:35,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 409 transitions. [2020-09-25 07:37:35,299 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 409 transitions. Word has length 193 [2020-09-25 07:37:35,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:37:35,299 INFO L479 AbstractCegarLoop]: Abstraction has 383 states and 409 transitions. [2020-09-25 07:37:35,300 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 07:37:35,300 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 409 transitions. [2020-09-25 07:37:35,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-09-25 07:37:35,303 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:37:35,303 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:37:35,303 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 07:37:35,303 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:37:35,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:37:35,304 INFO L82 PathProgramCache]: Analyzing trace with hash 1613853766, now seen corresponding path program 1 times [2020-09-25 07:37:35,304 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:37:35,304 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1343033516] [2020-09-25 07:37:35,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:37:35,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:35,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking...