/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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 SequenceOfStatements --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=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_productSimulator.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 22:13:47,276 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 22:13:47,281 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 22:13:47,337 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 22:13:47,338 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 22:13:47,345 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 22:13:47,347 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 22:13:47,351 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 22:13:47,354 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 22:13:47,362 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 22:13:47,363 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 22:13:47,364 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 22:13:47,365 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 22:13:47,368 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 22:13:47,371 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 22:13:47,373 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 22:13:47,374 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 22:13:47,378 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 22:13:47,386 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 22:13:47,390 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 22:13:47,392 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 22:13:47,394 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 22:13:47,395 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 22:13:47,396 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 22:13:47,399 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 22:13:47,399 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 22:13:47,399 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 22:13:47,400 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 22:13:47,401 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 22:13:47,402 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 22:13:47,402 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 22:13:47,403 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 22:13:47,404 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 22:13:47,405 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 22:13:47,406 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 22:13:47,406 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 22:13:47,407 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 22:13:47,407 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 22:13:47,407 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 22:13:47,408 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 22:13:47,409 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 22:13:47,410 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 [2020-10-27 22:13:47,435 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 22:13:47,435 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 22:13:47,437 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 22:13:47,437 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 22:13:47,437 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 22:13:47,437 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 22:13:47,438 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 22:13:47,438 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 22:13:47,438 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 22:13:47,438 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 22:13:47,438 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 22:13:47,439 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 22:13:47,439 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 22:13:47,439 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 22:13:47,439 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 22:13:47,439 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 22:13:47,440 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 22:13:47,440 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 22:13:47,440 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 22:13:47,440 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 22:13:47,440 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 22:13:47,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 22:13:47,441 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 22:13:47,441 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 22:13:47,441 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 22:13:47,441 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 22:13:47,442 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 22:13:47,442 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 22:13:47,442 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 22:13:47,442 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 22:13:47,819 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 22:13:47,856 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 22:13:47,859 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 22:13:47,861 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 22:13:47,861 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 22:13:47,862 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_productSimulator.cil.c [2020-10-27 22:13:47,947 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/381b229e0/7731ba58c90e4d38a5bac3a0466521ba/FLAG1c43a8c64 [2020-10-27 22:13:48,562 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 22:13:48,566 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_productSimulator.cil.c [2020-10-27 22:13:48,588 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/381b229e0/7731ba58c90e4d38a5bac3a0466521ba/FLAG1c43a8c64 [2020-10-27 22:13:48,895 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/381b229e0/7731ba58c90e4d38a5bac3a0466521ba [2020-10-27 22:13:48,898 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 22:13:48,905 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 22:13:48,909 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 22:13:48,909 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 22:13:48,913 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 22:13:48,914 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 10:13:48" (1/1) ... [2020-10-27 22:13:48,921 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@330b3feb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:13:48, skipping insertion in model container [2020-10-27 22:13:48,921 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 10:13:48" (1/1) ... [2020-10-27 22:13:48,932 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 22:13:49,006 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 22:13:49,404 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 22:13:49,426 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 22:13:49,545 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 22:13:49,601 INFO L208 MainTranslator]: Completed translation [2020-10-27 22:13:49,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:13:49 WrapperNode [2020-10-27 22:13:49,601 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 22:13:49,603 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 22:13:49,603 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 22:13:49,603 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 22:13:49,617 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:13:49" (1/1) ... [2020-10-27 22:13:49,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:13:49" (1/1) ... [2020-10-27 22:13:49,674 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:13:49" (1/1) ... [2020-10-27 22:13:49,674 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:13:49" (1/1) ... [2020-10-27 22:13:49,746 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:13:49" (1/1) ... [2020-10-27 22:13:49,754 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:13:49" (1/1) ... [2020-10-27 22:13:49,759 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:13:49" (1/1) ... [2020-10-27 22:13:49,767 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 22:13:49,768 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 22:13:49,769 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 22:13:49,769 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 22:13:49,770 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:13:49" (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 [2020-10-27 22:13:49,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 22:13:49,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 22:13:49,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-27 22:13:49,854 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 22:13:49,854 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-27 22:13:49,854 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-27 22:13:49,855 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-27 22:13:49,855 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-27 22:13:49,855 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-27 22:13:49,855 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-27 22:13:49,855 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-27 22:13:49,856 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-27 22:13:49,856 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-27 22:13:49,856 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-27 22:13:49,856 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 22:13:49,856 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-27 22:13:49,856 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-27 22:13:49,857 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__highWaterSensor [2020-10-27 22:13:49,857 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__highWaterSensor [2020-10-27 22:13:49,857 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__lowWaterSensor [2020-10-27 22:13:49,857 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__lowWaterSensor [2020-10-27 22:13:49,857 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__methaneAlarm [2020-10-27 22:13:49,858 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__methaneAlarm [2020-10-27 22:13:49,858 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-27 22:13:49,858 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__before__methaneQuery [2020-10-27 22:13:49,858 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__role__methaneQuery [2020-10-27 22:13:49,858 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-27 22:13:49,859 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-27 22:13:49,859 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-27 22:13:49,859 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-27 22:13:49,859 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-27 22:13:49,859 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-27 22:13:49,860 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-27 22:13:49,860 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-27 22:13:49,860 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-27 22:13:49,860 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-27 22:13:49,860 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-27 22:13:49,861 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-27 22:13:49,861 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-27 22:13:49,861 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-27 22:13:49,861 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-27 22:13:49,861 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-27 22:13:49,861 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-27 22:13:49,862 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-27 22:13:49,862 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-27 22:13:49,862 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-27 22:13:49,862 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-27 22:13:49,862 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-27 22:13:49,863 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-27 22:13:49,863 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 22:13:49,863 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 22:13:49,863 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 22:13:49,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 22:13:49,864 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 22:13:49,864 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-27 22:13:49,864 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-27 22:13:49,864 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-27 22:13:49,864 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-27 22:13:49,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-27 22:13:49,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-27 22:13:49,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 22:13:49,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-27 22:13:49,865 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-27 22:13:49,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 22:13:49,866 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-27 22:13:49,866 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-27 22:13:49,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 22:13:49,866 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-27 22:13:49,866 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-27 22:13:49,867 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-27 22:13:49,867 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-27 22:13:49,867 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-27 22:13:49,867 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-27 22:13:49,867 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-27 22:13:49,868 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-27 22:13:49,868 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-27 22:13:49,868 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-27 22:13:49,868 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-27 22:13:49,868 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-27 22:13:49,868 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-27 22:13:49,869 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-27 22:13:49,869 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-27 22:13:49,869 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 22:13:49,869 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-27 22:13:49,869 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-27 22:13:49,870 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-27 22:13:49,870 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-27 22:13:49,870 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-27 22:13:49,870 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-27 22:13:49,870 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-27 22:13:49,871 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-27 22:13:49,871 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-27 22:13:49,871 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-27 22:13:49,871 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-27 22:13:49,871 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-27 22:13:49,872 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__highWaterSensor [2020-10-27 22:13:49,872 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-27 22:13:49,872 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__highWaterSensor [2020-10-27 22:13:49,872 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__lowWaterSensor [2020-10-27 22:13:49,872 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-27 22:13:49,872 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__lowWaterSensor [2020-10-27 22:13:49,873 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__methaneAlarm [2020-10-27 22:13:49,873 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-27 22:13:49,873 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__methaneAlarm [2020-10-27 22:13:49,873 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__before__methaneQuery [2020-10-27 22:13:49,873 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__role__methaneQuery [2020-10-27 22:13:49,873 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-27 22:13:49,873 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-27 22:13:49,874 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-27 22:13:49,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 22:13:49,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 22:13:49,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 22:13:51,257 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 22:13:51,257 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-27 22:13:51,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 10:13:51 BoogieIcfgContainer [2020-10-27 22:13:51,260 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 22:13:51,262 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 22:13:51,262 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 22:13:51,265 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 22:13:51,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 10:13:48" (1/3) ... [2020-10-27 22:13:51,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@525c78cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 10:13:51, skipping insertion in model container [2020-10-27 22:13:51,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:13:49" (2/3) ... [2020-10-27 22:13:51,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@525c78cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 10:13:51, skipping insertion in model container [2020-10-27 22:13:51,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 10:13:51" (3/3) ... [2020-10-27 22:13:51,268 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_productSimulator.cil.c [2020-10-27 22:13:51,280 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 22:13:51,285 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-27 22:13:51,298 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-27 22:13:51,326 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 22:13:51,327 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 22:13:51,327 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 22:13:51,327 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 22:13:51,327 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 22:13:51,327 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 22:13:51,327 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 22:13:51,328 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 22:13:51,352 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states. [2020-10-27 22:13:51,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-27 22:13:51,366 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:13:51,367 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:13:51,367 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:13:51,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:13:51,374 INFO L82 PathProgramCache]: Analyzing trace with hash 272326910, now seen corresponding path program 1 times [2020-10-27 22:13:51,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:13:51,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1580434062] [2020-10-27 22:13:51,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:13:51,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:13:51,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:51,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:53,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:54,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:13:54,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-27 22:13:54,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 22:13:54,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2927 [2020-10-27 22:13:54,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:13:54,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:13:54,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-27 22:13:54,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:13:54,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 22:13:55,594 WARN L193 SmtUtils]: Spent 873.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-10-27 22:13:55,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:13:55,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:13:55,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:55,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:13:55,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:13:55,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:13:55,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-27 22:13:55,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:13:55,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:13:55,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:13:55,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:13:55,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:13:55,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:13:55,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:13:55,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:55,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:13:55,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:13:55,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:13:55,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:13:55,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:13:55,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:13:55,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:13:55,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:13:55,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:13:55,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 22:13:55,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:13:55,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:55,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:13:55,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-27 22:13:55,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:13:55,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 22:13:55,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:13:55,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:13:55,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:13:55,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:13:55,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:13:55,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 22:13:55,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:13:55,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:55,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:13:55,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:13:55,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:13:55,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:13:55,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:13:55,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:13:55,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:13:55,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:13:55,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:13:55,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:13:55,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:13:55,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:55,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:13:55,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:13:55,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:13:55,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:13:55,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:13:55,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:13:55,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:13:55,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:13:55,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:13:55,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-27 22:13:55,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:13:55,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:55,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:13:55,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:13:55,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:13:55,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:13:55,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:13:55,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:13:55,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:13:55,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:13:55,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:13:55,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 22:13:55,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:13:55,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:55,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:13:55,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:13:55,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:13:55,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:13:55,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:13:55,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:13:55,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:13:55,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:13:55,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:13:55,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-27 22:13:55,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:13:55,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:55,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:13:55,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:13:55,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:13:55,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:13:55,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:13:55,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:13:55,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:13:55,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:13:55,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:13:55,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-27 22:13:55,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:13:55,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:55,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:13:55,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:13:55,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:13:55,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:13:55,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:13:55,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:13:55,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:13:55,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:13:55,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:13:55,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 22:13:55,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:13:55,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:55,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:13:55,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:13:55,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:13:55,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:13:55,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:13:55,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:13:55,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:13:55,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:13:55,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:13:55,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 22:13:55,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:13:55,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:55,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:13:55,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:13:55,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:13:55,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:13:55,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:13:55,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:13:55,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:13:55,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:13:55,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:13:55,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 22:13:55,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:13:55,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:55,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:13:55,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:13:55,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:13:55,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:13:55,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:13:55,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:13:55,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:13:55,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:13:55,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:13:55,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-27 22:13:55,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:13:55,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:55,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:13:55,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:13:55,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:13:55,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:13:55,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:13:55,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:13:55,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:13:55,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:13:55,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:13:55,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-27 22:13:55,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:13:55,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:55,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:13:55,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:13:55,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:13:55,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:13:55,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:13:55,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:13:55,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:13:55,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:13:55,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:13:55,914 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-10-27 22:13:55,915 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1580434062] [2020-10-27 22:13:55,917 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:13:55,917 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-27 22:13:55,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384868267] [2020-10-27 22:13:55,923 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 22:13:55,923 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:13:55,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 22:13:55,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 22:13:55,939 INFO L87 Difference]: Start difference. First operand 252 states. Second operand 5 states. [2020-10-27 22:13:59,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:13:59,433 INFO L93 Difference]: Finished difference Result 453 states and 597 transitions. [2020-10-27 22:13:59,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-27 22:13:59,435 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 85 [2020-10-27 22:13:59,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:13:59,451 INFO L225 Difference]: With dead ends: 453 [2020-10-27 22:13:59,452 INFO L226 Difference]: Without dead ends: 255 [2020-10-27 22:13:59,457 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-10-27 22:13:59,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2020-10-27 22:13:59,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 206. [2020-10-27 22:13:59,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-10-27 22:13:59,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 253 transitions. [2020-10-27 22:13:59,638 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 253 transitions. Word has length 85 [2020-10-27 22:13:59,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:13:59,639 INFO L481 AbstractCegarLoop]: Abstraction has 206 states and 253 transitions. [2020-10-27 22:13:59,639 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 22:13:59,640 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 253 transitions. [2020-10-27 22:13:59,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-27 22:13:59,645 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:13:59,646 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:13:59,646 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 22:13:59,646 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:13:59,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:13:59,647 INFO L82 PathProgramCache]: Analyzing trace with hash 570669717, now seen corresponding path program 1 times [2020-10-27 22:13:59,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:13:59,648 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1403453158] [2020-10-27 22:13:59,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:13:59,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:13:59,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:59,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:14:00,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:14:03,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:14:03,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-27 22:14:03,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 22:14:03,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3966 [2020-10-27 22:14:03,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:14:03,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:14:03,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-27 22:14:03,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-27 22:14:03,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:14:04,148 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-10-27 22:14:04,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:14:04,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:14:04,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:14:04,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:14:04,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:14:04,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:14:04,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-27 22:14:04,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:14:04,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:14:04,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:14:04,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:14:04,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 22:14:04,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:14:04,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:14:04,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:14:04,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:14:04,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:14:04,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:14:04,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:14:04,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:14:04,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:14:04,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:14:04,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:14:04,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 22:14:04,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 22:14:04,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:14:04,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:14:04,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:14:04,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-27 22:14:04,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:14:04,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 22:14:04,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:14:04,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:14:04,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:14:04,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:14:04,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:14:04,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 22:14:04,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:14:04,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:14:04,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:14:04,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:14:04,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:14:04,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:14:04,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:14:04,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:14:04,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:14:04,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:14:04,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:14:04,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:14:04,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:14:04,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:14:04,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:14:04,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:14:04,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:14:04,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:14:04,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:14:04,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:14:04,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:14:04,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:14:04,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:14:04,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-27 22:14:04,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:14:04,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:14:04,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:14:04,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:14:04,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:14:04,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:14:04,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:14:04,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:14:04,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:14:04,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:14:04,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:14:04,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 22:14:04,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:14:04,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:14:04,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:14:04,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:14:04,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:14:04,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:14:04,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:14:04,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:14:04,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:14:04,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:14:04,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 22:14:04,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-27 22:14:04,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:14:04,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:14:04,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:14:04,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:14:04,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:14:04,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:14:04,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:14:04,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:14:04,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:14:04,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:14:04,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:14:04,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-27 22:14:04,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:14:04,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:14:04,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:14:04,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:14:04,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:14:04,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:14:04,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:14:04,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:14:04,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:14:04,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:14:04,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:14:04,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 22:14:04,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:14:04,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:14:04,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:14:04,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:14:04,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:14:04,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:14:04,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:14:04,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:14:04,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:14:04,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:14:04,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:14:04,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 22:14:04,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:14:04,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:14:04,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:14:04,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:14:04,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:14:04,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:14:04,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:14:04,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:14:04,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:14:04,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:14:04,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:14:04,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-27 22:14:04,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:14:04,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:14:04,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:14:04,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:14:04,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:14:04,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:14:04,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:14:04,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:14:04,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:14:04,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:14:04,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:14:04,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-27 22:14:04,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:14:04,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:14:04,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:14:04,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:14:04,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:14:04,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:14:04,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:14:04,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:14:04,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:14:04,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:14:04,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:14:04,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-27 22:14:04,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:14:04,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:14:04,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:14:04,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:14:04,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:14:04,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:14:04,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:14:04,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:14:04,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:14:04,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:14:04,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:14:04,415 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-10-27 22:14:04,416 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1403453158] [2020-10-27 22:14:04,416 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:14:04,416 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 22:14:04,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447818309] [2020-10-27 22:14:04,418 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 22:14:04,419 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:14:04,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 22:14:04,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-27 22:14:04,420 INFO L87 Difference]: Start difference. First operand 206 states and 253 transitions. Second operand 6 states. [2020-10-27 22:14:05,420 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 229 [2020-10-27 22:14:07,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:14:07,609 INFO L93 Difference]: Finished difference Result 374 states and 471 transitions. [2020-10-27 22:14:07,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-27 22:14:07,610 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 86 [2020-10-27 22:14:07,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:14:07,619 INFO L225 Difference]: With dead ends: 374 [2020-10-27 22:14:07,619 INFO L226 Difference]: Without dead ends: 239 [2020-10-27 22:14:07,621 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-10-27 22:14:07,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2020-10-27 22:14:07,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 197. [2020-10-27 22:14:07,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2020-10-27 22:14:07,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 241 transitions. [2020-10-27 22:14:07,707 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 241 transitions. Word has length 86 [2020-10-27 22:14:07,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:14:07,708 INFO L481 AbstractCegarLoop]: Abstraction has 197 states and 241 transitions. [2020-10-27 22:14:07,708 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 22:14:07,708 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 241 transitions. [2020-10-27 22:14:07,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-27 22:14:07,711 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:14:07,711 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:14:07,711 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 22:14:07,711 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:14:07,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:14:07,712 INFO L82 PathProgramCache]: Analyzing trace with hash -840942582, now seen corresponding path program 1 times [2020-10-27 22:14:07,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:14:07,712 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [175511846] [2020-10-27 22:14:07,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:14:07,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:14:07,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:14:08,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:14:09,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:14:09,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-27 22:14:09,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:14:09,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1677 [2020-10-27 22:14:09,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:14:09,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 22:14:09,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:14:09,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-27 22:14:09,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:14:09,901 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-10-27 22:14:09,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:14:09,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:14:09,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:14:10,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:14:10,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:14:10,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:14:10,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-27 22:14:10,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:14:10,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:14:10,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:14:10,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 22:14:10,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:14:10,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:14:10,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:14:10,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:14:10,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:14:10,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:14:10,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:14:10,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:14:10,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:14:10,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:14:10,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:14:10,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:14:10,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:14:10,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 22:14:10,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:14:10,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:14:10,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:14:10,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-27 22:14:10,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:14:10,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 22:14:10,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:14:10,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:14:10,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:14:10,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 22:14:10,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 22:14:10,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 22:14:10,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:14:10,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:14:10,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:14:10,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:14:10,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:14:10,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:14:10,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:14:10,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:14:10,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:14:10,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:14:10,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:14:10,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:14:10,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:14:10,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:14:10,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:14:10,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:14:10,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:14:10,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:14:10,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:14:10,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:14:10,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:14:10,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:14:10,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:14:10,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-27 22:14:10,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:14:10,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:14:10,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:14:10,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:14:10,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:14:10,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:14:10,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:14:10,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:14:10,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:14:10,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:14:10,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:14:10,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 22:14:10,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:14:10,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:14:10,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:14:10,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:14:10,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:14:10,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:14:10,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:14:10,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:14:10,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:14:10,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:14:10,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:14:10,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-27 22:14:10,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:14:10,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:14:10,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:14:10,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:14:10,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:14:10,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:14:10,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:14:10,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:14:10,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:14:10,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:14:10,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:14:10,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-27 22:14:10,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:14:10,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:14:10,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:14:10,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:14:10,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:14:10,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:14:10,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:14:10,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:14:10,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:14:10,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:14:10,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:14:10,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 22:14:10,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:14:10,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:14:10,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:14:10,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:14:10,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:14:10,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:14:10,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:14:10,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:14:10,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:14:10,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:14:10,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:14:10,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 22:14:10,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:14:10,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:14:10,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:14:10,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:14:10,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:14:10,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:14:10,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:14:10,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:14:10,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:14:10,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 22:14:10,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:14:10,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-27 22:14:10,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:14:10,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:14:10,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:14:10,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:14:10,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:14:10,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:14:10,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:14:10,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:14:10,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:14:10,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:14:10,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:14:10,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-27 22:14:10,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:14:10,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:14:10,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:14:10,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:14:10,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:14:10,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:14:10,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:14:10,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:14:10,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:14:10,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:14:10,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:14:10,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-27 22:14:10,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:14:10,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:14:10,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:14:10,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:14:10,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:14:10,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:14:10,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:14:10,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:14:10,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:14:10,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:14:10,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:14:10,205 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-10-27 22:14:10,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [175511846] [2020-10-27 22:14:10,206 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:14:10,206 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 22:14:10,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310663479] [2020-10-27 22:14:10,208 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 22:14:10,208 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:14:10,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 22:14:10,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 22:14:10,209 INFO L87 Difference]: Start difference. First operand 197 states and 241 transitions. Second operand 7 states. [2020-10-27 22:14:10,776 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 228 [2020-10-27 22:14:12,111 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification that was a NOOP. DAG size: 229 [2020-10-27 22:14:16,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:14:16,141 INFO L93 Difference]: Finished difference Result 647 states and 822 transitions. [2020-10-27 22:14:16,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 22:14:16,142 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 91 [2020-10-27 22:14:16,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:14:16,149 INFO L225 Difference]: With dead ends: 647 [2020-10-27 22:14:16,150 INFO L226 Difference]: Without dead ends: 491 [2020-10-27 22:14:16,151 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2020-10-27 22:14:16,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2020-10-27 22:14:16,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 398. [2020-10-27 22:14:16,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 398 states. [2020-10-27 22:14:16,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 498 transitions. [2020-10-27 22:14:16,312 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 498 transitions. Word has length 91 [2020-10-27 22:14:16,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:14:16,313 INFO L481 AbstractCegarLoop]: Abstraction has 398 states and 498 transitions. [2020-10-27 22:14:16,313 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 22:14:16,313 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 498 transitions. [2020-10-27 22:14:16,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-27 22:14:16,316 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:14:16,316 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:14:16,317 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 22:14:16,317 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:14:16,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:14:16,318 INFO L82 PathProgramCache]: Analyzing trace with hash 1567471379, now seen corresponding path program 1 times [2020-10-27 22:14:16,318 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:14:16,318 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [76714906] [2020-10-27 22:14:16,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:14:16,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:14:16,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:14:17,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:14:17,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-27 22:14:17,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:14:17,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1215 [2020-10-27 22:14:17,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:14:17,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 22:14:17,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:14:17,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-27 22:14:17,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:14:18,005 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-10-27 22:14:18,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:14:18,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:14:18,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:14:18,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:14:18,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:14:18,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:14:18,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-27 22:14:18,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:14:18,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:14:18,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:14:18,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 22:14:18,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:14:18,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:14:18,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:14:18,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:14:18,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:14:18,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:14:18,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:14:18,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:14:18,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:14:18,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:14:18,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:14:18,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:14:18,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:14:18,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 22:14:18,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:14:18,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:14:18,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:14:18,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-27 22:14:18,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:14:18,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-27 22:14:18,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:14:18,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:14:18,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:14:18,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 22:14:18,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:14:18,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 22:14:18,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:14:18,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:14:18,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:14:18,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:14:18,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:14:18,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:14:18,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:14:18,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:14:18,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:14:18,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:14:18,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:14:18,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:14:18,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:14:18,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:14:18,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:14:18,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:14:18,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:14:18,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:14:18,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:14:18,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:14:18,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:14:18,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:14:18,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:14:18,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-27 22:14:18,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:14:18,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:14:18,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:14:18,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:14:18,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:14:18,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:14:18,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:14:18,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:14:18,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:14:18,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:14:18,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:14:18,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 22:14:18,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:14:18,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:14:18,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:14:18,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:14:18,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:14:18,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:14:18,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:14:18,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:14:18,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:14:18,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:14:18,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:14:18,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-27 22:14:18,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:14:18,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:14:18,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:14:18,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:14:18,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:14:18,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:14:18,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:14:18,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:14:18,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:14:18,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:14:18,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:14:18,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-27 22:14:18,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:14:18,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:14:18,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:14:18,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:14:18,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:14:18,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:14:18,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:14:18,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:14:18,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:14:18,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:14:18,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:14:18,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 22:14:18,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:14:18,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:14:18,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:14:18,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:14:18,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:14:18,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:14:18,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:14:18,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:14:18,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:14:18,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:14:18,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:14:18,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 22:14:18,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:14:18,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:14:18,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:14:18,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:14:18,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:14:18,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:14:18,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:14:18,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:14:18,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:14:18,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 22:14:18,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:14:18,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 22:14:18,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:14:18,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:14:18,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:14:18,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:14:18,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:14:18,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:14:18,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:14:18,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:14:18,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:14:18,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:14:18,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:14:18,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-27 22:14:18,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:14:18,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:14:18,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:14:18,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:14:18,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:14:18,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:14:18,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:14:18,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:14:18,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:14:18,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:14:18,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:14:18,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-27 22:14:18,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:14:18,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:14:18,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:14:18,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:14:18,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:14:18,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:14:18,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:14:18,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:14:18,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:14:18,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:14:18,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:14:18,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-27 22:14:18,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:14:18,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:14:18,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:14:18,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:14:18,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:14:18,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:14:18,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:14:18,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:14:18,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:14:18,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:14:18,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:14:18,357 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-10-27 22:14:18,358 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [76714906] [2020-10-27 22:14:18,358 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:14:18,358 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 22:14:18,359 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532017264] [2020-10-27 22:14:18,359 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 22:14:18,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:14:18,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 22:14:18,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-27 22:14:18,362 INFO L87 Difference]: Start difference. First operand 398 states and 498 transitions. Second operand 10 states. [2020-10-27 22:14:19,766 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification that was a NOOP. DAG size: 228 [2020-10-27 22:14:21,531 WARN L193 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 232 [2020-10-27 22:14:23,402 WARN L193 SmtUtils]: Spent 820.00 ms on a formula simplification. DAG size of input: 232 DAG size of output: 230 [2020-10-27 22:14:24,056 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 230 [2020-10-27 22:14:24,610 WARN L193 SmtUtils]: Spent 420.00 ms on a formula simplification that was a NOOP. DAG size: 230 [2020-10-27 22:14:27,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:14:27,426 INFO L93 Difference]: Finished difference Result 1252 states and 1665 transitions. [2020-10-27 22:14:27,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-27 22:14:27,426 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 97 [2020-10-27 22:14:27,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:14:27,434 INFO L225 Difference]: With dead ends: 1252 [2020-10-27 22:14:27,434 INFO L226 Difference]: Without dead ends: 895 [2020-10-27 22:14:27,436 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=148, Invalid=358, Unknown=0, NotChecked=0, Total=506 [2020-10-27 22:14:27,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 895 states. [2020-10-27 22:14:27,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 895 to 785. [2020-10-27 22:14:27,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 785 states. [2020-10-27 22:14:27,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 988 transitions. [2020-10-27 22:14:27,673 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 988 transitions. Word has length 97 [2020-10-27 22:14:27,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:14:27,674 INFO L481 AbstractCegarLoop]: Abstraction has 785 states and 988 transitions. [2020-10-27 22:14:27,674 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 22:14:27,674 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 988 transitions. [2020-10-27 22:14:27,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-27 22:14:27,678 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:14:27,678 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:14:27,678 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 22:14:27,678 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:14:27,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:14:27,679 INFO L82 PathProgramCache]: Analyzing trace with hash -452266535, now seen corresponding path program 1 times [2020-10-27 22:14:27,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:14:27,679 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1276163428] [2020-10-27 22:14:27,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:14:27,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 22:14:27,747 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 22:14:27,747 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 22:14:27,753 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 22:14:27,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 10:14:27 BoogieIcfgContainer [2020-10-27 22:14:27,794 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 22:14:27,797 INFO L168 Benchmark]: Toolchain (without parser) took 38895.25 ms. Allocated memory was 125.8 MB in the beginning and 512.8 MB in the end (delta: 386.9 MB). Free memory was 99.9 MB in the beginning and 396.5 MB in the end (delta: -296.6 MB). Peak memory consumption was 91.8 MB. Max. memory is 8.0 GB. [2020-10-27 22:14:27,798 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 125.8 MB. Free memory is still 88.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 22:14:27,800 INFO L168 Benchmark]: CACSL2BoogieTranslator took 692.93 ms. Allocated memory is still 125.8 MB. Free memory was 99.2 MB in the beginning and 73.6 MB in the end (delta: 25.5 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. [2020-10-27 22:14:27,801 INFO L168 Benchmark]: Boogie Preprocessor took 164.93 ms. Allocated memory was 125.8 MB in the beginning and 152.0 MB in the end (delta: 26.2 MB). Free memory was 73.6 MB in the beginning and 131.7 MB in the end (delta: -58.0 MB). Peak memory consumption was 5.5 MB. Max. memory is 8.0 GB. [2020-10-27 22:14:27,807 INFO L168 Benchmark]: RCFGBuilder took 1491.55 ms. Allocated memory is still 152.0 MB. Free memory was 131.7 MB in the beginning and 78.4 MB in the end (delta: 53.3 MB). Peak memory consumption was 53.7 MB. Max. memory is 8.0 GB. [2020-10-27 22:14:27,808 INFO L168 Benchmark]: TraceAbstraction took 36532.76 ms. Allocated memory was 152.0 MB in the beginning and 512.8 MB in the end (delta: 360.7 MB). Free memory was 77.9 MB in the beginning and 396.5 MB in the end (delta: -318.7 MB). Peak memory consumption was 42.0 MB. Max. memory is 8.0 GB. [2020-10-27 22:14:27,818 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 125.8 MB. Free memory is still 88.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 692.93 ms. Allocated memory is still 125.8 MB. Free memory was 99.2 MB in the beginning and 73.6 MB in the end (delta: 25.5 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 164.93 ms. Allocated memory was 125.8 MB in the beginning and 152.0 MB in the end (delta: 26.2 MB). Free memory was 73.6 MB in the beginning and 131.7 MB in the end (delta: -58.0 MB). Peak memory consumption was 5.5 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1491.55 ms. Allocated memory is still 152.0 MB. Free memory was 131.7 MB in the beginning and 78.4 MB in the end (delta: 53.3 MB). Peak memory consumption was 53.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 36532.76 ms. Allocated memory was 152.0 MB in the beginning and 512.8 MB in the end (delta: 360.7 MB). Free memory was 77.9 MB in the beginning and 396.5 MB in the end (delta: -318.7 MB). Peak memory consumption was 42.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L408] int cleanupTimeShifts = 4; [L512] int __SELECTED_FEATURE_base ; [L513] int __SELECTED_FEATURE_highWaterSensor ; [L514] int __SELECTED_FEATURE_lowWaterSensor ; [L515] int __SELECTED_FEATURE_methaneQuery ; [L516] int __SELECTED_FEATURE_methaneAlarm ; [L517] int __SELECTED_FEATURE_stopCommand ; [L518] int __SELECTED_FEATURE_startCommand ; [L519] int __GUIDSL_ROOT_PRODUCTION ; [L607] int pumpRunning = 0; [L608] int systemActive = 1; [L1029] int waterLevel = 1; [L1030] int methaneLevelCritical = 0; [L489] int retValue_acc ; [L490] int tmp ; [L494] CALL select_helpers() [L970] __GUIDSL_ROOT_PRODUCTION = 1 [L494] RET select_helpers() [L495] CALL select_features() [L955] __SELECTED_FEATURE_base = 1 [L956] CALL, EXPR select_one() [L941] int retValue_acc ; [L942] int choice = __VERIFIER_nondet_int(); [L945] retValue_acc = choice [L946] return (retValue_acc); [L956] RET, EXPR select_one() [L956] __SELECTED_FEATURE_highWaterSensor = select_one() [L957] CALL, EXPR select_one() [L941] int retValue_acc ; [L942] int choice = __VERIFIER_nondet_int(); [L945] retValue_acc = choice [L946] return (retValue_acc); [L957] RET, EXPR select_one() [L957] __SELECTED_FEATURE_lowWaterSensor = select_one() [L958] CALL, EXPR select_one() [L941] int retValue_acc ; [L942] int choice = __VERIFIER_nondet_int(); [L945] retValue_acc = choice [L946] return (retValue_acc); [L958] RET, EXPR select_one() [L958] __SELECTED_FEATURE_methaneQuery = select_one() [L959] CALL, EXPR select_one() [L941] int retValue_acc ; [L942] int choice = __VERIFIER_nondet_int(); [L945] retValue_acc = choice [L946] return (retValue_acc); [L959] RET, EXPR select_one() [L959] __SELECTED_FEATURE_methaneAlarm = select_one() [L960] CALL, EXPR select_one() [L941] int retValue_acc ; [L942] int choice = __VERIFIER_nondet_int(); [L945] retValue_acc = choice [L946] return (retValue_acc); [L960] RET, EXPR select_one() [L960] __SELECTED_FEATURE_stopCommand = select_one() [L961] CALL, EXPR select_one() [L941] int retValue_acc ; [L942] int choice = __VERIFIER_nondet_int(); [L945] retValue_acc = choice [L946] return (retValue_acc); [L961] RET, EXPR select_one() [L961] __SELECTED_FEATURE_startCommand = select_one() [L495] RET select_features() [L496] CALL, EXPR valid_product() [L975] int retValue_acc ; [L978] retValue_acc = __SELECTED_FEATURE_base [L979] return (retValue_acc); [L496] RET, EXPR valid_product() [L496] tmp = valid_product() [L498] COND TRUE \read(tmp) [L500] FCALL setup() [L501] CALL runTest() [L480] CALL test() [L523] int splverifierCounter ; [L524] int tmp ; [L525] int tmp___0 ; [L526] int tmp___1 ; [L527] int tmp___2 ; [L530] splverifierCounter = 0 [L532] COND TRUE 1 [L534] COND TRUE splverifierCounter < 4 [L540] tmp = __VERIFIER_nondet_int() [L542] COND TRUE \read(tmp) [L544] CALL waterRise() [L1047] COND TRUE waterLevel < 2 [L1048] waterLevel = waterLevel + 1 [L544] RET waterRise() [L550] tmp___0 = __VERIFIER_nondet_int() [L552] COND FALSE !(\read(tmp___0)) [L560] tmp___2 = __VERIFIER_nondet_int() [L562] COND FALSE !(\read(tmp___2)) [L572] tmp___1 = __VERIFIER_nondet_int() [L574] COND TRUE \read(tmp___1) [L575] COND TRUE \read(__SELECTED_FEATURE_stopCommand) [L577] CALL stopSystem() [L919] COND FALSE !(\read(pumpRunning)) [L926] systemActive = 0 [L577] RET stopSystem() [L587] CALL timeShift() [L615] COND FALSE !(\read(pumpRunning)) [L622] COND FALSE !(\read(systemActive)) [L630] CALL __utac_acc__Specification3_spec__1() [L987] int tmp ; [L988] int tmp___0 ; [L989] int tmp___1 ; [L993] CALL, EXPR isMethaneLevelCritical() [L1068] int retValue_acc ; [L1071] retValue_acc = methaneLevelCritical [L1072] return (retValue_acc); [L993] RET, EXPR isMethaneLevelCritical() [L993] tmp = isMethaneLevelCritical() [L995] COND FALSE !(\read(tmp)) [L999] CALL, EXPR getWaterLevel() [L1100] int retValue_acc ; [L1103] retValue_acc = waterLevel [L1104] return (retValue_acc); [L999] RET, EXPR getWaterLevel() [L999] tmp___0 = getWaterLevel() [L1001] COND TRUE tmp___0 == 2 [L1003] CALL, EXPR isPumpRunning() [L833] int retValue_acc ; [L836] retValue_acc = pumpRunning [L837] return (retValue_acc); [L1003] RET, EXPR isPumpRunning() [L1003] tmp___1 = isPumpRunning() [L1005] COND FALSE !(\read(tmp___1)) [L1009] CALL __automaton_fail() [L1024] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_productSimulator.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 49 procedures, 313 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 36.4s, OverallIterations: 5, TraceHistogramMax: 6, AutomataDifference: 21.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 693 SDtfs, 1747 SDslu, 243 SDs, 0 SdLazy, 2804 SolverSat, 1430 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 163 GetRequests, 118 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 6.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=785occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 4 MinimizatonAttempts, 294 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 13.2s InterpolantComputationTime, 460 NumberOfCodeBlocks, 460 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 355 ConstructedInterpolants, 0 QuantifiedInterpolants, 134287 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 180/180 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...