/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product43.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 04:00:59,807 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:00:59,810 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:00:59,837 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:00:59,837 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:00:59,838 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:00:59,839 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:00:59,841 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:00:59,843 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:00:59,844 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:00:59,845 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:00:59,846 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:00:59,846 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:00:59,847 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:00:59,848 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:00:59,849 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:00:59,850 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:00:59,851 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:00:59,853 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:00:59,855 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:00:59,857 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:00:59,858 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:00:59,859 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:00:59,860 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:00:59,863 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:00:59,863 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:00:59,864 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:00:59,865 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:00:59,865 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:00:59,866 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:00:59,866 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:00:59,867 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:00:59,868 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:00:59,869 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:00:59,870 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:00:59,870 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:00:59,871 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:00:59,871 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:00:59,871 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:00:59,872 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:00:59,873 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:00:59,874 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 04:00:59,917 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:00:59,917 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:00:59,918 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:00:59,919 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:00:59,919 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:00:59,920 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:00:59,920 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:00:59,920 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:00:59,920 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:00:59,920 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:00:59,921 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:00:59,922 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:00:59,922 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:00:59,922 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:00:59,923 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:00:59,923 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:00:59,923 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:00:59,923 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:00:59,923 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:00:59,924 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:00:59,924 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:00:59,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:00:59,925 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:00:59,925 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:00:59,925 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:00:59,925 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:00:59,925 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:00:59,926 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:00:59,926 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:00:59,926 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; [2020-09-25 04:01:00,394 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:01:00,422 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:01:00,427 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:01:00,429 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:01:00,429 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:01:00,430 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product43.cil.c [2020-09-25 04:01:00,527 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5b73ec11f/3b869087e456491c8f2e24f15a71c16e/FLAG762f11378 [2020-09-25 04:01:01,115 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:01:01,116 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product43.cil.c [2020-09-25 04:01:01,143 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5b73ec11f/3b869087e456491c8f2e24f15a71c16e/FLAG762f11378 [2020-09-25 04:01:01,401 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5b73ec11f/3b869087e456491c8f2e24f15a71c16e [2020-09-25 04:01:01,414 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:01:01,421 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:01:01,422 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:01:01,422 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:01:01,428 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:01:01,429 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:01:01" (1/1) ... [2020-09-25 04:01:01,434 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f1c8c30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:01:01, skipping insertion in model container [2020-09-25 04:01:01,434 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:01:01" (1/1) ... [2020-09-25 04:01:01,445 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:01:01,527 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:01:02,109 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:01:02,124 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:01:02,229 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:01:02,273 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:01:02,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:01:02 WrapperNode [2020-09-25 04:01:02,273 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:01:02,274 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:01:02,275 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:01:02,276 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:01:02,297 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:01:02" (1/1) ... [2020-09-25 04:01:02,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:01:02" (1/1) ... [2020-09-25 04:01:02,324 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:01:02" (1/1) ... [2020-09-25 04:01:02,325 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:01:02" (1/1) ... [2020-09-25 04:01:02,366 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:01:02" (1/1) ... [2020-09-25 04:01:02,377 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:01:02" (1/1) ... [2020-09-25 04:01:02,382 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:01:02" (1/1) ... [2020-09-25 04:01:02,390 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:01:02,391 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:01:02,391 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:01:02,391 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:01:02,393 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:01:02" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:01:02,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:01:02,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:01:02,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 04:01:02,501 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 04:01:02,501 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 04:01:02,501 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 04:01:02,502 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 04:01:02,503 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 04:01:02,504 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 04:01:02,504 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 04:01:02,504 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 04:01:02,504 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 04:01:02,504 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 04:01:02,505 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 04:01:02,505 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 04:01:02,506 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 04:01:02,506 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 04:01:02,506 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 04:01:02,506 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 04:01:02,507 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 04:01:02,507 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 04:01:02,507 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 04:01:02,508 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 04:01:02,508 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 04:01:02,509 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 04:01:02,509 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 04:01:02,509 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 04:01:02,509 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 04:01:02,509 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:01:02,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 04:01:02,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 04:01:02,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 04:01:02,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 04:01:02,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 04:01:02,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 04:01:02,511 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 04:01:02,511 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 04:01:02,511 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 04:01:02,511 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 04:01:02,511 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:01:02,511 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 04:01:02,512 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 04:01:02,512 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 04:01:02,512 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 04:01:02,512 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 04:01:02,512 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 04:01:02,512 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 04:01:02,513 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 04:01:02,513 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 04:01:02,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 04:01:02,513 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 04:01:02,514 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 04:01:02,514 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 04:01:02,514 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 04:01:02,514 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 04:01:02,515 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 04:01:02,515 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 04:01:02,515 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 04:01:02,515 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 04:01:02,515 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 04:01:02,515 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 04:01:02,515 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 04:01:02,516 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 04:01:02,516 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 04:01:02,516 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 04:01:02,517 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 04:01:02,517 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 04:01:02,517 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 04:01:02,517 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 04:01:02,518 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 04:01:02,518 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 04:01:02,520 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:01:02,520 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 04:01:02,520 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 04:01:02,520 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 04:01:02,520 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 04:01:02,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 04:01:02,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 04:01:02,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 04:01:02,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 04:01:02,521 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 04:01:02,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 04:01:02,522 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 04:01:02,523 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 04:01:02,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 04:01:02,523 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 04:01:02,523 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 04:01:02,523 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 04:01:02,523 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 04:01:02,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:01:02,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 04:01:02,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:01:03,827 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:01:03,827 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 04:01:03,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:01:03 BoogieIcfgContainer [2020-09-25 04:01:03,840 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:01:03,843 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:01:03,843 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:01:03,847 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:01:03,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:01:01" (1/3) ... [2020-09-25 04:01:03,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7784c092 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:01:03, skipping insertion in model container [2020-09-25 04:01:03,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:01:02" (2/3) ... [2020-09-25 04:01:03,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7784c092 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:01:03, skipping insertion in model container [2020-09-25 04:01:03,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:01:03" (3/3) ... [2020-09-25 04:01:03,853 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product43.cil.c [2020-09-25 04:01:03,864 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:01:03,880 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 04:01:03,904 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 04:01:03,950 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:01:03,950 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:01:03,950 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:01:03,950 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:01:03,950 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:01:03,950 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:01:03,951 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:01:03,951 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:01:03,991 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states. [2020-09-25 04:01:04,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 04:01:04,008 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:01:04,009 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:01:04,009 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:01:04,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:01:04,016 INFO L82 PathProgramCache]: Analyzing trace with hash 1378033390, now seen corresponding path program 1 times [2020-09-25 04:01:04,026 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:01:04,026 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1544811693] [2020-09-25 04:01:04,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:01:04,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:04,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:04,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:06,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:07,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:08,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:09,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:09,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 04:01:09,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:01:09,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5057 [2020-09-25 04:01:09,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:09,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:09,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:09,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 04:01:09,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:09,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 04:01:09,904 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:01:09,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:01:09,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:09,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:10,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:10,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:01:10,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:10,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-09-25 04:01:10,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:10,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:10,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:10,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:10,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:10,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:10,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:01:10,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:10,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:10,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:10,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:01:10,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:10,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:01:10,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:10,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:10,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:10,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:10,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:10,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:01:10,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:01:10,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:10,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:10,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:10,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:01:10,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:10,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:01:10,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:10,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:10,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:10,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:10,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:10,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:01:10,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:01:10,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:10,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:10,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:10,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:01:10,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:10,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:01:10,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:10,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:10,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:10,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:10,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:10,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:10,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:01:10,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:10,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:10,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:10,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:01:10,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:10,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:01:10,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:10,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:10,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:10,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:10,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:10,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:01:10,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 04:01:10,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:10,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:10,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:10,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:01:10,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:10,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:01:10,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:10,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:10,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:10,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:01:10,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:10,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:01:10,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 04:01:10,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:10,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:10,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:10,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:01:10,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:10,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:01:10,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:10,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:10,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:10,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:01:10,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:10,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:01:10,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:01:10,358 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1544811693] [2020-09-25 04:01:10,361 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:01:10,361 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:01:10,362 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36111965] [2020-09-25 04:01:10,370 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:01:10,370 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:01:10,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:01:10,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:01:10,393 INFO L87 Difference]: Start difference. First operand 304 states. Second operand 3 states. [2020-09-25 04:01:12,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:01:12,111 INFO L93 Difference]: Finished difference Result 475 states and 564 transitions. [2020-09-25 04:01:12,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:01:12,114 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 04:01:12,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:01:12,172 INFO L225 Difference]: With dead ends: 475 [2020-09-25 04:01:12,173 INFO L226 Difference]: Without dead ends: 296 [2020-09-25 04:01:12,181 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:01:12,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-09-25 04:01:12,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 253. [2020-09-25 04:01:12,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2020-09-25 04:01:12,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 274 transitions. [2020-09-25 04:01:12,334 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 274 transitions. Word has length 142 [2020-09-25 04:01:12,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:01:12,335 INFO L479 AbstractCegarLoop]: Abstraction has 253 states and 274 transitions. [2020-09-25 04:01:12,335 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:01:12,335 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 274 transitions. [2020-09-25 04:01:12,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 04:01:12,340 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:01:12,340 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:01:12,341 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:01:12,341 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:01:12,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:01:12,342 INFO L82 PathProgramCache]: Analyzing trace with hash -1594368587, now seen corresponding path program 1 times [2020-09-25 04:01:12,342 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:01:12,343 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [812605107] [2020-09-25 04:01:12,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:01:12,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:12,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:12,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:14,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:14,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:15,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:17,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:17,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 04:01:17,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:01:17,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-09-25 04:01:17,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:17,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:17,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:01:17,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 04:01:17,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 04:01:17,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:17,719 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:01:17,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:01:17,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:17,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:17,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:17,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:01:17,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:17,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-25 04:01:17,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:17,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:17,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:17,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:17,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:17,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:17,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:01:17,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:17,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:17,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:17,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:01:17,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:17,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:01:17,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:17,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:17,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:17,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:17,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:17,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:17,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:01:17,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:17,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:17,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:17,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:01:17,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:17,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:01:17,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:17,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:17,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:17,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:17,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:17,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:17,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:01:17,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:17,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:17,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:17,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:01:17,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:17,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:01:17,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:17,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:17,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:17,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:17,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:17,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:17,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:01:17,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:17,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:17,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:17,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:01:17,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:17,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:01:17,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:17,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:17,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:17,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:17,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:17,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:17,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 04:01:17,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:17,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:17,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:17,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:01:17,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:17,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:01:17,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:17,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:17,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:17,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:01:17,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:17,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:17,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 04:01:17,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:17,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:17,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:17,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:01:17,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:17,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:01:17,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:17,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:17,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:17,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:01:17,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:17,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:17,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:01:17,991 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [812605107] [2020-09-25 04:01:17,991 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:01:17,991 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 04:01:17,993 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473990600] [2020-09-25 04:01:17,998 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 04:01:17,998 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:01:17,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 04:01:17,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:01:17,999 INFO L87 Difference]: Start difference. First operand 253 states and 274 transitions. Second operand 4 states. [2020-09-25 04:01:18,599 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:01:19,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:01:19,564 INFO L93 Difference]: Finished difference Result 383 states and 429 transitions. [2020-09-25 04:01:19,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 04:01:19,564 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 04:01:19,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:01:19,568 INFO L225 Difference]: With dead ends: 383 [2020-09-25 04:01:19,568 INFO L226 Difference]: Without dead ends: 279 [2020-09-25 04:01:19,570 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:01:19,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2020-09-25 04:01:19,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 243. [2020-09-25 04:01:19,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2020-09-25 04:01:19,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 261 transitions. [2020-09-25 04:01:19,616 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 261 transitions. Word has length 143 [2020-09-25 04:01:19,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:01:19,617 INFO L479 AbstractCegarLoop]: Abstraction has 243 states and 261 transitions. [2020-09-25 04:01:19,617 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 04:01:19,617 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 261 transitions. [2020-09-25 04:01:19,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-09-25 04:01:19,620 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:01:19,620 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] [2020-09-25 04:01:19,620 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:01:19,621 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:01:19,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:01:19,621 INFO L82 PathProgramCache]: Analyzing trace with hash -1389720772, now seen corresponding path program 1 times [2020-09-25 04:01:19,621 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:01:19,622 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1160979091] [2020-09-25 04:01:19,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:01:19,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:19,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:20,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:21,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:21,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:24,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:24,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 04:01:24,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:01:24,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 04:01:24,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:24,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:24,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:01:24,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 04:01:24,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 04:01:24,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:25,133 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:01:25,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:01:25,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:25,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:25,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:25,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:01:25,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:25,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-09-25 04:01:25,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:25,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:25,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:25,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:25,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:25,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:25,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:01:25,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:25,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:25,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:25,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:01:25,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:25,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:01:25,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:25,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:25,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:25,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:25,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:25,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:25,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:01:25,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:25,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:25,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:25,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:01:25,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:25,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:01:25,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:25,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:25,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:25,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:25,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:25,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:25,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:01:25,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:25,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:25,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:25,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:01:25,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:25,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:01:25,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:25,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:25,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:25,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:25,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:25,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:25,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:01:25,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:25,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:25,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:25,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:01:25,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:25,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:01:25,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:25,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:25,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:25,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:25,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:25,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:25,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 04:01:25,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:25,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:25,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:25,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:01:25,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:25,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:01:25,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:25,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:25,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:01:25,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:25,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:01:25,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:25,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 04:01:25,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:25,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:25,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:25,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:01:25,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:25,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 04:01:25,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:25,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:25,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:01:25,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:25,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:01:25,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:25,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:01:25,477 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1160979091] [2020-09-25 04:01:25,477 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:01:25,481 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 04:01:25,482 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401747856] [2020-09-25 04:01:25,483 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 04:01:25,483 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:01:25,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 04:01:25,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:01:25,486 INFO L87 Difference]: Start difference. First operand 243 states and 261 transitions. Second operand 8 states. [2020-09-25 04:01:26,042 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 04:01:27,233 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 04:01:27,566 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:01:27,911 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 04:01:28,237 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:01:28,535 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 04:01:29,325 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 04:01:29,630 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 04:01:29,928 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:01:30,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:01:30,430 INFO L93 Difference]: Finished difference Result 489 states and 565 transitions. [2020-09-25 04:01:30,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 04:01:30,431 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 152 [2020-09-25 04:01:30,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:01:30,436 INFO L225 Difference]: With dead ends: 489 [2020-09-25 04:01:30,436 INFO L226 Difference]: Without dead ends: 356 [2020-09-25 04:01:30,438 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-25 04:01:30,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2020-09-25 04:01:30,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 325. [2020-09-25 04:01:30,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 325 states. [2020-09-25 04:01:30,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 361 transitions. [2020-09-25 04:01:30,490 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 361 transitions. Word has length 152 [2020-09-25 04:01:30,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:01:30,491 INFO L479 AbstractCegarLoop]: Abstraction has 325 states and 361 transitions. [2020-09-25 04:01:30,491 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 04:01:30,491 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 361 transitions. [2020-09-25 04:01:30,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-09-25 04:01:30,494 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:01:30,495 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:01:30,495 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 04:01:30,495 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:01:30,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:01:30,496 INFO L82 PathProgramCache]: Analyzing trace with hash -1554282566, now seen corresponding path program 1 times [2020-09-25 04:01:30,496 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:01:30,496 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1942931673] [2020-09-25 04:01:30,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:01:30,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:30,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:31,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:31,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:35,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:35,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-09-25 04:01:35,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:01:35,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-09-25 04:01:35,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:35,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:35,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:01:35,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 172 [2020-09-25 04:01:35,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:01:35,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:01:35,909 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:01:35,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:01:35,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:35,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:36,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:36,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:01:36,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:36,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-09-25 04:01:36,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:36,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:36,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:36,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:36,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:36,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:36,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:01:36,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:36,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:36,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:36,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:01:36,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:36,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:01:36,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:36,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:36,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:36,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:36,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:36,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:36,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:01:36,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:36,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:36,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:36,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:01:36,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:36,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:01:36,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:36,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:36,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:36,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:36,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:36,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:36,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:01:36,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:36,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:36,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:36,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:01:36,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:36,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:01:36,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:36,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:36,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:36,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:36,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:36,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:36,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:01:36,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:36,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:36,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:36,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:01:36,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:36,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:01:36,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:36,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:36,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:36,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:36,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:36,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:36,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 04:01:36,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:36,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:36,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:36,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 04:01:36,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:36,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-25 04:01:36,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:36,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:36,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:01:36,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 04:01:36,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:01:36,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:36,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:01:36,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:36,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:36,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:36,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 04:01:36,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:36,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-25 04:01:36,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:36,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:36,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:01:36,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:36,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 04:01:36,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:36,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:01:36,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:36,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:36,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:36,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:01:36,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:36,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:01:36,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:36,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:36,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:36,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:36,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:36,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:36,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 04:01:36,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:36,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:36,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:36,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 04:01:36,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:36,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 04:01:36,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:36,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:36,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:36,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 04:01:36,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:36,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:36,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 04:01:36,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:36,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:36,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:36,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 04:01:36,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:36,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:01:36,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:36,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:36,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:36,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:36,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:36,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:36,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 04:01:36,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:36,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:36,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:36,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:01:36,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:36,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:01:36,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:36,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:36,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:36,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:36,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:36,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:01:36,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 04:01:36,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:36,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:36,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:36,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:01:36,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:36,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:01:36,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:36,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:36,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:36,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:36,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:36,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:36,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-09-25 04:01:36,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:36,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:36,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:36,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:01:36,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:36,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:01:36,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:36,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:36,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:36,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:01:36,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:36,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:36,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-09-25 04:01:36,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:36,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:36,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:36,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:01:36,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:36,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:01:36,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:36,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:36,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:36,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:01:36,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:36,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:36,552 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 04:01:36,553 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1942931673] [2020-09-25 04:01:36,553 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:01:36,554 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 04:01:36,554 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253897593] [2020-09-25 04:01:36,555 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 04:01:36,555 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:01:36,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 04:01:36,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 04:01:36,557 INFO L87 Difference]: Start difference. First operand 325 states and 361 transitions. Second operand 9 states. [2020-09-25 04:01:38,076 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:01:38,403 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 04:01:38,720 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:01:39,044 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:01:39,363 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 04:01:39,635 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:01:40,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:01:40,423 INFO L93 Difference]: Finished difference Result 604 states and 715 transitions. [2020-09-25 04:01:40,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 04:01:40,423 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 207 [2020-09-25 04:01:40,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:01:40,428 INFO L225 Difference]: With dead ends: 604 [2020-09-25 04:01:40,428 INFO L226 Difference]: Without dead ends: 389 [2020-09-25 04:01:40,430 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2020-09-25 04:01:40,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2020-09-25 04:01:40,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 336. [2020-09-25 04:01:40,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2020-09-25 04:01:40,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 372 transitions. [2020-09-25 04:01:40,481 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 372 transitions. Word has length 207 [2020-09-25 04:01:40,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:01:40,482 INFO L479 AbstractCegarLoop]: Abstraction has 336 states and 372 transitions. [2020-09-25 04:01:40,482 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 04:01:40,482 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 372 transitions. [2020-09-25 04:01:40,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-09-25 04:01:40,485 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:01:40,486 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:01:40,486 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 04:01:40,486 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:01:40,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:01:40,487 INFO L82 PathProgramCache]: Analyzing trace with hash 986014554, now seen corresponding path program 1 times [2020-09-25 04:01:40,487 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:01:40,487 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [41362833] [2020-09-25 04:01:40,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:01:40,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:40,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:41,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:41,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:45,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:45,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-09-25 04:01:45,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:01:45,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-09-25 04:01:45,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:45,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:45,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:01:45,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 164 [2020-09-25 04:01:45,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:01:45,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:01:45,871 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:01:45,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:01:45,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:45,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:45,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:45,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:01:45,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:45,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-25 04:01:45,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:46,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:46,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:46,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:46,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:46,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:46,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:01:46,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:46,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:46,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:46,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:01:46,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:46,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:01:46,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:46,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:46,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:46,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:46,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:46,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:46,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:01:46,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:46,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:46,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:46,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:01:46,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:46,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:01:46,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:46,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:46,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:46,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:46,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:46,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:46,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:01:46,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:46,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:46,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:46,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:01:46,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:46,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:01:46,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:46,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:46,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:46,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:46,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:46,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:46,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:01:46,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:46,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:46,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:46,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:01:46,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:46,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:01:46,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:46,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:46,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:46,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:46,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:46,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:01:46,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 04:01:46,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:46,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:46,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:46,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 04:01:46,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:46,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-09-25 04:01:46,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:46,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:46,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:01:46,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 04:01:46,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:01:46,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:46,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:01:46,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:46,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:46,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:46,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 04:01:46,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:46,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 04:01:46,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:46,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:46,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:01:46,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 04:01:46,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:01:46,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:46,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:01:46,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:46,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:46,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:46,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:01:46,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:46,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:01:46,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:46,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:46,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:01:46,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:46,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:01:46,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:46,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 04:01:46,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:46,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:46,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:46,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 04:01:46,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:46,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 04:01:46,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:46,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:46,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:46,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 04:01:46,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:46,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:01:46,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 04:01:46,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:46,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:46,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:46,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 04:01:46,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:46,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:01:46,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:46,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:46,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:46,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:46,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:46,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:46,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 04:01:46,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:46,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:46,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:46,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:01:46,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:46,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:01:46,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:46,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:46,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:46,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:46,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:46,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:46,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 04:01:46,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:46,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:46,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:46,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:01:46,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:46,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:01:46,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:46,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:46,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:46,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:46,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:46,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:46,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-09-25 04:01:46,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:46,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:46,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:46,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:01:46,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:46,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:01:46,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:46,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:46,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:46,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:01:46,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:46,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:46,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-09-25 04:01:46,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:46,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:46,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:46,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:01:46,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:46,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:01:46,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:46,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:46,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:46,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:01:46,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:46,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:01:46,377 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 04:01:46,377 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [41362833] [2020-09-25 04:01:46,377 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:01:46,378 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 04:01:46,378 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590419430] [2020-09-25 04:01:46,378 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 04:01:46,379 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:01:46,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 04:01:46,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:01:46,380 INFO L87 Difference]: Start difference. First operand 336 states and 372 transitions. Second operand 8 states. [2020-09-25 04:01:47,630 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:01:47,970 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 04:01:48,310 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:01:48,652 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 04:01:48,941 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 187