/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=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product52.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 05:19:26,383 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 05:19:26,386 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 05:19:26,416 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 05:19:26,417 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 05:19:26,418 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 05:19:26,420 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 05:19:26,422 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 05:19:26,424 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 05:19:26,425 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 05:19:26,426 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 05:19:26,428 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 05:19:26,428 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 05:19:26,429 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 05:19:26,430 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 05:19:26,432 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 05:19:26,433 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 05:19:26,436 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 05:19:26,438 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 05:19:26,441 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 05:19:26,442 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 05:19:26,444 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 05:19:26,445 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 05:19:26,447 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 05:19:26,449 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 05:19:26,450 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 05:19:26,450 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 05:19:26,451 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 05:19:26,452 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 05:19:26,453 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 05:19:26,453 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 05:19:26,454 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 05:19:26,455 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 05:19:26,456 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 05:19:26,457 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 05:19:26,457 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 05:19:26,458 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 05:19:26,458 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 05:19:26,458 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 05:19:26,460 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 05:19:26,460 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 05:19:26,461 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 05:19:26,489 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 05:19:26,489 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 05:19:26,491 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 05:19:26,491 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 05:19:26,491 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 05:19:26,492 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 05:19:26,492 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 05:19:26,492 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 05:19:26,492 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 05:19:26,492 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 05:19:26,493 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 05:19:26,493 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 05:19:26,493 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 05:19:26,493 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 05:19:26,493 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 05:19:26,494 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 05:19:26,494 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 05:19:26,494 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 05:19:26,494 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 05:19:26,494 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 05:19:26,495 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 05:19:26,495 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:19:26,495 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 05:19:26,495 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 05:19:26,495 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 05:19:26,496 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 05:19:26,496 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 05:19:26,496 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 05:19:26,496 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 05:19:26,496 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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;log-additional-information=true; [2020-09-25 05:19:26,971 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 05:19:26,995 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 05:19:27,000 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 05:19:27,003 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 05:19:27,004 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 05:19:27,006 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product52.cil.c [2020-09-25 05:19:27,108 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a7c08fd77/1481c0eafea04454928b5856bbaa53c2/FLAG816cb859f [2020-09-25 05:19:27,736 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 05:19:27,737 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product52.cil.c [2020-09-25 05:19:27,754 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a7c08fd77/1481c0eafea04454928b5856bbaa53c2/FLAG816cb859f [2020-09-25 05:19:28,005 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a7c08fd77/1481c0eafea04454928b5856bbaa53c2 [2020-09-25 05:19:28,021 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 05:19:28,030 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 05:19:28,035 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 05:19:28,035 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 05:19:28,040 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 05:19:28,041 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:19:28" (1/1) ... [2020-09-25 05:19:28,045 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@538d8bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:19:28, skipping insertion in model container [2020-09-25 05:19:28,045 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:19:28" (1/1) ... [2020-09-25 05:19:28,056 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 05:19:28,125 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 05:19:28,536 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:19:28,667 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 05:19:28,811 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:19:28,849 INFO L208 MainTranslator]: Completed translation [2020-09-25 05:19:28,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:19:28 WrapperNode [2020-09-25 05:19:28,850 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 05:19:28,851 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 05:19:28,851 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 05:19:28,851 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 05:19:28,866 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:19:28" (1/1) ... [2020-09-25 05:19:28,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:19:28" (1/1) ... [2020-09-25 05:19:28,888 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:19:28" (1/1) ... [2020-09-25 05:19:28,889 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:19:28" (1/1) ... [2020-09-25 05:19:28,930 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:19:28" (1/1) ... [2020-09-25 05:19:28,943 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:19:28" (1/1) ... [2020-09-25 05:19:28,948 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:19:28" (1/1) ... [2020-09-25 05:19:28,956 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 05:19:28,957 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 05:19:28,957 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 05:19:28,957 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 05:19:28,959 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:19:28" (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 05:19:29,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 05:19:29,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 05:19:29,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 05:19:29,054 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 05:19:29,054 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 05:19:29,055 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 05:19:29,055 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 05:19:29,056 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 05:19:29,056 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 05:19:29,057 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 05:19:29,057 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 05:19:29,057 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 05:19:29,057 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 05:19:29,057 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 05:19:29,058 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 05:19:29,059 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 05:19:29,059 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 05:19:29,059 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 05:19:29,059 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 05:19:29,060 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 05:19:29,060 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 05:19:29,060 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 05:19:29,060 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 05:19:29,061 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 05:19:29,061 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 05:19:29,062 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 05:19:29,062 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 05:19:29,062 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 05:19:29,062 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 05:19:29,062 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 05:19:29,062 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 05:19:29,062 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 05:19:29,063 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 05:19:29,063 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 05:19:29,063 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 05:19:29,064 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 05:19:29,064 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 05:19:29,064 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 05:19:29,064 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 05:19:29,064 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 05:19:29,064 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 05:19:29,065 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 05:19:29,065 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 05:19:29,065 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 05:19:29,065 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 05:19:29,065 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 05:19:29,065 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 05:19:29,066 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 05:19:29,066 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 05:19:29,066 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 05:19:29,066 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 05:19:29,066 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 05:19:29,067 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 05:19:29,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 05:19:29,067 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 05:19:29,067 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 05:19:29,068 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 05:19:29,068 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 05:19:29,068 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 05:19:29,068 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 05:19:29,068 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 05:19:29,069 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 05:19:29,069 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 05:19:29,069 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 05:19:29,069 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 05:19:29,069 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 05:19:29,070 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 05:19:29,070 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 05:19:29,070 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 05:19:29,071 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 05:19:29,071 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 05:19:29,072 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 05:19:29,072 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 05:19:29,073 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 05:19:29,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 05:19:29,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 05:19:29,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 05:19:29,073 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 05:19:29,073 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 05:19:29,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 05:19:29,074 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 05:19:29,074 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 05:19:29,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 05:19:29,075 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 05:19:29,075 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 05:19:29,075 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 05:19:29,075 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 05:19:29,076 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 05:19:29,076 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 05:19:29,076 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 05:19:29,076 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 05:19:29,076 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 05:19:29,076 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 05:19:29,076 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 05:19:29,077 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 05:19:29,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 05:19:29,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 05:19:29,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 05:19:30,278 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 05:19:30,278 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 05:19:30,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:19:30 BoogieIcfgContainer [2020-09-25 05:19:30,286 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 05:19:30,287 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 05:19:30,287 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 05:19:30,291 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 05:19:30,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 05:19:28" (1/3) ... [2020-09-25 05:19:30,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dbacd01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:19:30, skipping insertion in model container [2020-09-25 05:19:30,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:19:28" (2/3) ... [2020-09-25 05:19:30,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dbacd01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:19:30, skipping insertion in model container [2020-09-25 05:19:30,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:19:30" (3/3) ... [2020-09-25 05:19:30,296 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product52.cil.c [2020-09-25 05:19:30,309 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 05:19:30,322 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 05:19:30,347 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 05:19:30,385 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 05:19:30,386 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 05:19:30,386 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 05:19:30,386 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 05:19:30,386 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 05:19:30,386 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 05:19:30,387 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 05:19:30,387 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 05:19:30,419 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states. [2020-09-25 05:19:30,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 05:19:30,438 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:19:30,439 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 05:19:30,440 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:19:30,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:19:30,449 INFO L82 PathProgramCache]: Analyzing trace with hash -1964738656, now seen corresponding path program 1 times [2020-09-25 05:19:30,462 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:19:30,463 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [674911487] [2020-09-25 05:19:30,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:19:30,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:30,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:31,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:32,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:33,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:35,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:35,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 05:19:35,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:19:35,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 05:19:35,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:35,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:35,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:35,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 05:19:35,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:35,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 05:19:36,227 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:19:36,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:19:36,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:36,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:36,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:36,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:19:36,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:36,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-09-25 05:19:36,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:36,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:36,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:36,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:36,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:36,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:36,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:19:36,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:36,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:36,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:36,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:19:36,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:36,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:19:36,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:36,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:36,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:36,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:36,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:36,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:36,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:19:36,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:36,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:36,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:36,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:19:36,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:36,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:19:36,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:36,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:36,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:36,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:36,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:36,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:36,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:19:36,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:36,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:36,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:36,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:19:36,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:36,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:19:36,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:36,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:36,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:36,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:36,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:36,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:36,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:19:36,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:36,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:36,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:36,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:19:36,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:36,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:19:36,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:36,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:36,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:36,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:36,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:36,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:36,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 05:19:36,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:36,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:36,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:36,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:19:36,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:36,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:19:36,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:36,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:36,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:36,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:19:36,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:36,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:36,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 05:19:36,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:36,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:36,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:36,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:19:36,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:36,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:19:36,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:36,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:36,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:36,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:19:36,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:36,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:36,523 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 05:19:36,524 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [674911487] [2020-09-25 05:19:36,526 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:19:36,527 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 05:19:36,528 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348629481] [2020-09-25 05:19:36,535 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 05:19:36,536 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:19:36,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 05:19:36,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:19:36,558 INFO L87 Difference]: Start difference. First operand 322 states. Second operand 3 states. [2020-09-25 05:19:38,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:19:38,047 INFO L93 Difference]: Finished difference Result 512 states and 609 transitions. [2020-09-25 05:19:38,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 05:19:38,050 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 05:19:38,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:19:38,072 INFO L225 Difference]: With dead ends: 512 [2020-09-25 05:19:38,072 INFO L226 Difference]: Without dead ends: 315 [2020-09-25 05:19:38,079 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 05:19:38,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2020-09-25 05:19:38,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 271. [2020-09-25 05:19:38,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2020-09-25 05:19:38,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 295 transitions. [2020-09-25 05:19:38,224 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 295 transitions. Word has length 142 [2020-09-25 05:19:38,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:19:38,225 INFO L479 AbstractCegarLoop]: Abstraction has 271 states and 295 transitions. [2020-09-25 05:19:38,225 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 05:19:38,226 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 295 transitions. [2020-09-25 05:19:38,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 05:19:38,230 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:19:38,231 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 05:19:38,231 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 05:19:38,231 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:19:38,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:19:38,232 INFO L82 PathProgramCache]: Analyzing trace with hash -760083785, now seen corresponding path program 1 times [2020-09-25 05:19:38,232 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:19:38,233 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [630106956] [2020-09-25 05:19:38,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:19:38,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:38,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:38,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:40,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:40,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:43,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:43,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 05:19:43,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:19:43,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-09-25 05:19:43,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:43,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:43,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:19:43,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 05:19:43,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 05:19:43,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:43,639 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:19:43,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:19:43,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:43,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:43,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:43,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:19:43,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:43,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-25 05:19:43,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:43,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:43,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:43,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:43,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:43,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:43,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:19:43,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:43,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:43,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:43,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:19:43,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:43,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:19:43,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:43,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:43,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:43,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:43,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:43,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:43,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:19:43,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:43,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:43,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:43,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:19:43,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:43,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:19:43,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:43,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:43,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:43,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:43,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:43,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:43,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:19:43,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:43,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:43,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:43,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:19:43,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:43,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:19:43,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:43,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:43,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:43,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:43,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:43,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:43,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:19:43,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:43,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:43,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:43,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:19:43,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:43,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:19:43,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:43,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:43,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:43,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:43,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:43,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:43,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 05:19:43,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:43,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:43,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:43,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:19:43,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:43,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:19:43,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:43,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:43,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:43,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:19:43,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:43,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:19:43,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 05:19:43,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:43,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:43,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:43,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:19:43,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:43,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:19:43,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:43,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:43,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:43,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:19:43,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:43,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:43,930 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 05:19:43,931 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [630106956] [2020-09-25 05:19:43,932 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:19:43,932 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 05:19:43,932 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849949584] [2020-09-25 05:19:43,935 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 05:19:43,936 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:19:43,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 05:19:43,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:19:43,937 INFO L87 Difference]: Start difference. First operand 271 states and 295 transitions. Second operand 4 states. [2020-09-25 05:19:44,771 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:19:45,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:19:45,833 INFO L93 Difference]: Finished difference Result 419 states and 472 transitions. [2020-09-25 05:19:45,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 05:19:45,834 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 05:19:45,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:19:45,839 INFO L225 Difference]: With dead ends: 419 [2020-09-25 05:19:45,839 INFO L226 Difference]: Without dead ends: 298 [2020-09-25 05:19:45,841 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:19:45,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-09-25 05:19:45,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 261. [2020-09-25 05:19:45,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-09-25 05:19:45,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 282 transitions. [2020-09-25 05:19:45,891 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 282 transitions. Word has length 143 [2020-09-25 05:19:45,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:19:45,892 INFO L479 AbstractCegarLoop]: Abstraction has 261 states and 282 transitions. [2020-09-25 05:19:45,892 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 05:19:45,892 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 282 transitions. [2020-09-25 05:19:45,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 05:19:45,894 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:19:45,894 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:19:45,895 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 05:19:45,895 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:19:45,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:19:45,895 INFO L82 PathProgramCache]: Analyzing trace with hash -815473591, now seen corresponding path program 1 times [2020-09-25 05:19:45,896 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:19:45,896 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2101473517] [2020-09-25 05:19:45,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:19:45,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:45,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:46,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:47,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:48,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:50,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:50,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 05:19:50,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:19:50,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 05:19:50,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:50,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:50,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:19:50,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 05:19:50,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:19:50,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:51,222 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:19:51,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:19:51,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:51,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:51,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:51,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:19:51,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:51,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-25 05:19:51,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:51,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:51,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:51,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:51,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:51,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:51,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:19:51,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:51,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:51,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:51,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:19:51,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:51,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:19:51,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:51,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:51,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:51,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:51,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:51,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:19:51,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:19:51,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:51,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:51,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:51,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:19:51,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:51,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:19:51,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:51,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:51,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:51,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:51,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:51,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:51,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:19:51,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:51,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:51,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:51,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:19:51,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:51,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:19:51,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:51,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:51,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:51,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:51,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:51,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:51,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:19:51,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:51,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:51,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:51,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:19:51,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:51,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:19:51,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:51,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:51,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:51,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:51,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:51,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:51,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 05:19:51,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:51,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:51,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:51,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:19:51,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:51,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:19:51,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:51,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:51,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:19:51,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:51,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 05:19:51,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:51,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 05:19:51,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:51,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:51,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:51,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:19:51,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:51,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:19:51,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:51,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:51,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:51,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:19:51,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:51,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:51,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 05:19:51,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:51,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:51,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:51,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:19:51,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:51,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:19:51,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:51,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:51,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:51,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:19:51,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:51,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:19:51,441 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 05:19:51,442 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2101473517] [2020-09-25 05:19:51,442 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:19:51,442 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 05:19:51,443 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93193484] [2020-09-25 05:19:51,443 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 05:19:51,443 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:19:51,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 05:19:51,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:19:51,444 INFO L87 Difference]: Start difference. First operand 261 states and 282 transitions. Second operand 5 states. [2020-09-25 05:19:52,090 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 05:19:54,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:19:54,177 INFO L93 Difference]: Finished difference Result 633 states and 733 transitions. [2020-09-25 05:19:54,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 05:19:54,179 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-25 05:19:54,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:19:54,184 INFO L225 Difference]: With dead ends: 633 [2020-09-25 05:19:54,185 INFO L226 Difference]: Without dead ends: 482 [2020-09-25 05:19:54,187 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:19:54,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2020-09-25 05:19:54,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 402. [2020-09-25 05:19:54,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2020-09-25 05:19:54,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 445 transitions. [2020-09-25 05:19:54,271 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 445 transitions. Word has length 156 [2020-09-25 05:19:54,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:19:54,272 INFO L479 AbstractCegarLoop]: Abstraction has 402 states and 445 transitions. [2020-09-25 05:19:54,272 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 05:19:54,272 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 445 transitions. [2020-09-25 05:19:54,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 05:19:54,275 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:19:54,275 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:19:54,275 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 05:19:54,275 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:19:54,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:19:54,276 INFO L82 PathProgramCache]: Analyzing trace with hash 870315564, now seen corresponding path program 1 times [2020-09-25 05:19:54,276 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:19:54,276 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1147152398] [2020-09-25 05:19:54,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:19:54,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:54,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:55,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:55,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:57,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:59,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:59,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-25 05:19:59,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:19:59,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-09-25 05:19:59,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:59,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:59,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 05:19:59,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 150 [2020-09-25 05:19:59,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 05:19:59,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:59,714 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:19:59,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:19:59,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:59,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:59,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:59,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:19:59,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:59,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-09-25 05:19:59,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:59,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:59,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:59,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:59,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:59,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:59,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:19:59,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:59,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:59,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:59,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:19:59,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:59,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:19:59,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:59,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:59,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:59,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:59,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:59,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:59,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:19:59,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:59,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:59,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:59,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:19:59,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:59,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:19:59,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:59,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:59,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:59,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:59,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:59,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:59,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:19:59,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:59,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:59,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:59,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:19:59,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:59,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:19:59,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:59,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:59,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:59,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:59,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:59,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:59,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:19:59,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:59,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:59,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:59,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:19:59,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:59,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:19:59,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:59,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:59,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:59,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:59,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:59,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:59,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 05:19:59,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:59,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:59,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:59,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:19:59,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:59,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 05:19:59,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:59,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:59,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:19:59,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:59,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 05:19:59,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:59,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 05:19:59,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:59,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:59,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:59,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:19:59,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:59,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:19:59,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:59,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:59,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:19:59,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:59,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:19:59,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:59,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 05:19:59,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:59,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:59,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:59,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:19:59,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:59,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 05:19:59,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:59,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:59,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:19:59,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:59,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:19:59,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:20:00,100 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 05:20:00,101 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1147152398] [2020-09-25 05:20:00,102 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:20:00,102 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 05:20:00,103 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238302476] [2020-09-25 05:20:00,104 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 05:20:00,104 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:20:00,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 05:20:00,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 05:20:00,105 INFO L87 Difference]: Start difference. First operand 402 states and 445 transitions. Second operand 9 states. [2020-09-25 05:20:00,702 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 05:20:01,987 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:20:02,362 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 05:20:02,709 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 05:20:03,062 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:20:03,412 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 05:20:04,131 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:20:04,483 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:20:04,828 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:20:05,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:20:05,909 INFO L93 Difference]: Finished difference Result 949 states and 1135 transitions. [2020-09-25 05:20:05,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 05:20:05,910 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 161 [2020-09-25 05:20:05,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:20:05,918 INFO L225 Difference]: With dead ends: 949 [2020-09-25 05:20:05,918 INFO L226 Difference]: Without dead ends: 657 [2020-09-25 05:20:05,921 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 05:20:05,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657 states. [2020-09-25 05:20:06,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 580. [2020-09-25 05:20:06,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2020-09-25 05:20:06,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 660 transitions. [2020-09-25 05:20:06,016 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 660 transitions. Word has length 161 [2020-09-25 05:20:06,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:20:06,017 INFO L479 AbstractCegarLoop]: Abstraction has 580 states and 660 transitions. [2020-09-25 05:20:06,017 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 05:20:06,017 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 660 transitions. [2020-09-25 05:20:06,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-25 05:20:06,020 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:20:06,021 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:20:06,021 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 05:20:06,021 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:20:06,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:20:06,022 INFO L82 PathProgramCache]: Analyzing trace with hash -1978598191, now seen corresponding path program 1 times [2020-09-25 05:20:06,022 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:20:06,022 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1799811856] [2020-09-25 05:20:06,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:20:06,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:20:06,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:20:06,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:20:11,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:20:11,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-25 05:20:11,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:20:11,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-25 05:20:11,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:20:11,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:20:11,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 05:20:11,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 183 [2020-09-25 05:20:11,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 05:20:11,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:20:11,391 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:20:11,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:20:11,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:20:11,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:20:11,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:20:11,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:20:11,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:20:11,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-25 05:20:11,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:20:11,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:20:11,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:20:11,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:20:11,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:20:11,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:20:11,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:20:11,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:20:11,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:20:11,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:20:11,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:20:11,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:20:11,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:20:11,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:20:11,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:20:11,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:20:11,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:20:11,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:20:11,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:20:11,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:20:11,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:20:11,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:20:11,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:20:11,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:20:11,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:20:11,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:20:11,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:20:11,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:20:11,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:20:11,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:20:11,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:20:11,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:20:11,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:20:11,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:20:11,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:20:11,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:20:11,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:20:11,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:20:11,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:20:11,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:20:11,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:20:11,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:20:11,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:20:11,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:20:11,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:20:11,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:20:11,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:20:11,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:20:11,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:20:11,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:20:11,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:20:11,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:20:11,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:20:11,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:20:11,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:20:11,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:20:11,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:20:11,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:20:11,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 05:20:11,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:20:11,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:20:11,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:20:11,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:20:11,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:20:11,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:20:11,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:20:11,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:20:11,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:20:11,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:20:11,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:20:11,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:20:11,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 05:20:11,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:20:11,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:20:11,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:20:11,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 05:20:11,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:20:11,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-25 05:20:11,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:20:11,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:20:11,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 05:20:11,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 05:20:11,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 05:20:11,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:20:11,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:20:11,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:20:11,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:20:11,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:20:11,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 05:20:11,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:20:11,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-25 05:20:11,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:20:11,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:20:11,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 05:20:11,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 05:20:11,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 05:20:11,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:20:11,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:20:11,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:20:11,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:20:11,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:20:11,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 05:20:11,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:20:11,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 05:20:11,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:20:11,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:20:11,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:20:11,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:20:11,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 05:20:11,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:20:11,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:20:11,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:20:11,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:20:11,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:20:11,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 05:20:11,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:20:11,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:20:11,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:20:11,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:20:11,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:20:11,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:20:11,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:20:11,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:20:11,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 05:20:11,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:20:11,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:20:11,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:20:11,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:20:11,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:20:11,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:20:11,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:20:11,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:20:11,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:20:11,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 05:20:11,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:20:11,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:20:11,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-25 05:20:11,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:20:11,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:20:11,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:20:11,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:20:11,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:20:11,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:20:11,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:20:11,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:20:11,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:20:11,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:20:11,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:20:11,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:20:11,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-25 05:20:11,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:20:11,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:20:11,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:20:11,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:20:11,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:20:11,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:20:11,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:20:11,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:20:11,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:20:11,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:20:11,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:20:11,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:20:11,897 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 05:20:11,897 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1799811856] [2020-09-25 05:20:11,898 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:20:11,898 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 05:20:11,898 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054502979] [2020-09-25 05:20:11,899 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 05:20:11,899 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:20:11,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 05:20:11,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 05:20:11,899 INFO L87 Difference]: Start difference. First operand 580 states and 660 transitions. Second operand 10 states. [2020-09-25 05:20:13,414 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:20:13,746 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 189