/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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_spec1_product55.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 11:26:15,456 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 11:26:15,461 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 11:26:15,516 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 11:26:15,517 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 11:26:15,523 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 11:26:15,525 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 11:26:15,530 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 11:26:15,534 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 11:26:15,540 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 11:26:15,542 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 11:26:15,543 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 11:26:15,543 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 11:26:15,546 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 11:26:15,548 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 11:26:15,550 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 11:26:15,551 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 11:26:15,554 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 11:26:15,561 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 11:26:15,569 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 11:26:15,571 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 11:26:15,573 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 11:26:15,575 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 11:26:15,577 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 11:26:15,585 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 11:26:15,586 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 11:26:15,586 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 11:26:15,588 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 11:26:15,589 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 11:26:15,590 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 11:26:15,590 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 11:26:15,591 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 11:26:15,593 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 11:26:15,594 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 11:26:15,595 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 11:26:15,595 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 11:26:15,596 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 11:26:15,597 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 11:26:15,597 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 11:26:15,598 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 11:26:15,598 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 11:26:15,606 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 [2020-10-29 11:26:15,652 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 11:26:15,653 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 11:26:15,657 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 11:26:15,658 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 11:26:15,658 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 11:26:15,658 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 11:26:15,658 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 11:26:15,659 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 11:26:15,659 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 11:26:15,659 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 11:26:15,660 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 11:26:15,660 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 11:26:15,661 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 11:26:15,661 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 11:26:15,661 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 11:26:15,661 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 11:26:15,661 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 11:26:15,662 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 11:26:15,662 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 11:26:15,662 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 11:26:15,662 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 11:26:15,663 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 11:26:15,663 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 11:26:15,663 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 11:26:15,663 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 11:26:15,664 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 11:26:15,664 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 11:26:15,664 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 11:26:15,664 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 11:26:15,665 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 11:26:16,050 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 11:26:16,077 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 11:26:16,080 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 11:26:16,081 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 11:26:16,082 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 11:26:16,083 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product55.cil.c [2020-10-29 11:26:16,167 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a796266d5/cd1f5eb57e924fa4ab540f3fd1151e80/FLAG65e139b03 [2020-10-29 11:26:16,854 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 11:26:16,857 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product55.cil.c [2020-10-29 11:26:16,878 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a796266d5/cd1f5eb57e924fa4ab540f3fd1151e80/FLAG65e139b03 [2020-10-29 11:26:17,122 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a796266d5/cd1f5eb57e924fa4ab540f3fd1151e80 [2020-10-29 11:26:17,126 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 11:26:17,135 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 11:26:17,139 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 11:26:17,140 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 11:26:17,144 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 11:26:17,145 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 11:26:17" (1/1) ... [2020-10-29 11:26:17,151 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dcf2070 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:26:17, skipping insertion in model container [2020-10-29 11:26:17,151 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 11:26:17" (1/1) ... [2020-10-29 11:26:17,161 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 11:26:17,229 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 11:26:17,625 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 11:26:17,650 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 11:26:17,726 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 11:26:17,778 INFO L208 MainTranslator]: Completed translation [2020-10-29 11:26:17,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:26:17 WrapperNode [2020-10-29 11:26:17,779 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 11:26:17,781 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 11:26:17,781 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 11:26:17,781 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 11:26:17,795 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:26:17" (1/1) ... [2020-10-29 11:26:17,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:26:17" (1/1) ... [2020-10-29 11:26:17,839 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:26:17" (1/1) ... [2020-10-29 11:26:17,839 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:26:17" (1/1) ... [2020-10-29 11:26:17,901 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:26:17" (1/1) ... [2020-10-29 11:26:17,917 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:26:17" (1/1) ... [2020-10-29 11:26:17,928 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:26:17" (1/1) ... [2020-10-29 11:26:17,939 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 11:26:17,940 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 11:26:17,941 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 11:26:17,941 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 11:26:17,945 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:26:17" (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 [2020-10-29 11:26:18,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 11:26:18,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 11:26:18,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-29 11:26:18,053 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 11:26:18,054 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-29 11:26:18,054 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-29 11:26:18,054 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-29 11:26:18,054 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-29 11:26:18,054 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-29 11:26:18,055 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-29 11:26:18,055 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-29 11:26:18,055 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-29 11:26:18,055 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-10-29 11:26:18,055 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-29 11:26:18,055 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-29 11:26:18,056 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-29 11:26:18,056 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-29 11:26:18,056 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-29 11:26:18,056 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-29 11:26:18,056 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-29 11:26:18,057 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-29 11:26:18,057 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-29 11:26:18,057 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-29 11:26:18,057 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-29 11:26:18,057 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-29 11:26:18,057 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-29 11:26:18,058 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-29 11:26:18,058 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-29 11:26:18,058 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-29 11:26:18,058 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-29 11:26:18,058 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-29 11:26:18,058 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-29 11:26:18,059 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-29 11:26:18,059 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-29 11:26:18,059 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-29 11:26:18,059 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 11:26:18,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-10-29 11:26:18,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-29 11:26:18,060 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-29 11:26:18,060 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-29 11:26:18,060 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-29 11:26:18,060 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-29 11:26:18,060 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-29 11:26:18,060 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 11:26:18,061 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 11:26:18,061 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 11:26:18,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 11:26:18,061 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 11:26:18,061 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-29 11:26:18,061 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-29 11:26:18,062 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-29 11:26:18,062 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-29 11:26:18,062 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-29 11:26:18,062 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-29 11:26:18,062 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-29 11:26:18,062 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-29 11:26:18,063 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-29 11:26:18,063 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-29 11:26:18,063 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-29 11:26:18,063 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-29 11:26:18,063 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-29 11:26:18,063 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-29 11:26:18,064 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-29 11:26:18,064 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-29 11:26:18,064 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-29 11:26:18,064 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-29 11:26:18,064 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-29 11:26:18,064 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-29 11:26:18,065 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-10-29 11:26:18,065 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-29 11:26:18,065 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-29 11:26:18,065 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-29 11:26:18,065 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-29 11:26:18,065 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-29 11:26:18,066 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-10-29 11:26:18,066 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-29 11:26:18,066 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-29 11:26:18,066 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-29 11:26:18,066 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-29 11:26:18,067 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-29 11:26:18,067 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-29 11:26:18,067 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 11:26:18,067 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-29 11:26:18,067 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-29 11:26:18,067 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-29 11:26:18,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-29 11:26:18,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-29 11:26:18,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 11:26:18,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-29 11:26:18,068 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-29 11:26:18,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 11:26:18,069 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-29 11:26:18,069 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-29 11:26:18,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 11:26:18,069 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-29 11:26:18,069 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-29 11:26:18,069 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-29 11:26:18,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 11:26:18,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 11:26:18,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 11:26:19,203 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 11:26:19,204 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-29 11:26:19,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 11:26:19 BoogieIcfgContainer [2020-10-29 11:26:19,206 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 11:26:19,208 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 11:26:19,208 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 11:26:19,212 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 11:26:19,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 11:26:17" (1/3) ... [2020-10-29 11:26:19,213 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ee783bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 11:26:19, skipping insertion in model container [2020-10-29 11:26:19,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:26:17" (2/3) ... [2020-10-29 11:26:19,214 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ee783bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 11:26:19, skipping insertion in model container [2020-10-29 11:26:19,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 11:26:19" (3/3) ... [2020-10-29 11:26:19,215 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product55.cil.c [2020-10-29 11:26:19,227 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 11:26:19,233 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-29 11:26:19,246 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-29 11:26:19,274 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 11:26:19,275 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 11:26:19,275 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 11:26:19,275 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 11:26:19,275 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 11:26:19,275 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 11:26:19,276 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 11:26:19,276 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 11:26:19,298 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states. [2020-10-29 11:26:19,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-29 11:26:19,311 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:26:19,314 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 11:26:19,315 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]=== [2020-10-29 11:26:19,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:26:19,329 INFO L82 PathProgramCache]: Analyzing trace with hash -774975722, now seen corresponding path program 1 times [2020-10-29 11:26:19,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:26:19,342 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [924392304] [2020-10-29 11:26:19,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:26:19,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:19,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:19,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:20,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:21,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:22,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:24,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:24,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-29 11:26:24,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 11:26:24,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-29 11:26:24,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:24,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:24,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 11:26:24,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:26:24,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-29 11:26:24,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 11:26:25,122 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:26:25,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:26:25,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:25,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:25,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:25,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:26:25,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:25,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-29 11:26:25,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:25,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:25,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:26:25,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:25,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 11:26:25,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:25,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:26:25,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:25,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:25,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:25,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:26:25,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:25,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:26:25,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:25,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:25,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:26:25,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:25,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:26:25,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:25,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:26:25,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:25,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:25,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:25,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:26:25,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:25,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:26:25,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:25,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:25,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:26:25,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:25,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:26:25,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:25,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:26:25,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:25,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:25,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:25,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:26:25,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:25,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 11:26:25,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:25,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:25,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:26:25,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:25,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:26:25,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:25,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:26:25,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:25,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:25,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:25,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:26:25,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:25,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:26:25,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:25,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:25,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:26:25,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:25,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:26:25,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:25,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-29 11:26:25,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:25,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:25,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:25,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:26:25,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:25,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:26:25,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:25,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:25,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:26:25,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:26:25,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:26:25,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:26:25,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 11:26:25,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:25,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:25,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:25,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:26:25,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:25,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:26:25,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:25,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:25,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:26:25,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:26:25,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:26:25,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:25,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 11:26:25,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [924392304] [2020-10-29 11:26:25,406 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 11:26:25,407 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 11:26:25,408 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273774909] [2020-10-29 11:26:25,414 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 11:26:25,414 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:26:25,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 11:26:25,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 11:26:25,433 INFO L87 Difference]: Start difference. First operand 196 states. Second operand 4 states. [2020-10-29 11:26:25,908 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:26:28,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:26:28,651 INFO L93 Difference]: Finished difference Result 507 states and 672 transitions. [2020-10-29 11:26:28,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 11:26:28,653 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-10-29 11:26:28,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:26:28,669 INFO L225 Difference]: With dead ends: 507 [2020-10-29 11:26:28,669 INFO L226 Difference]: Without dead ends: 332 [2020-10-29 11:26:28,674 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 11:26:28,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2020-10-29 11:26:28,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 269. [2020-10-29 11:26:28,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2020-10-29 11:26:28,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 328 transitions. [2020-10-29 11:26:28,837 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 328 transitions. Word has length 47 [2020-10-29 11:26:28,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:26:28,838 INFO L481 AbstractCegarLoop]: Abstraction has 269 states and 328 transitions. [2020-10-29 11:26:28,838 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 11:26:28,838 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 328 transitions. [2020-10-29 11:26:28,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-29 11:26:28,843 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:26:28,843 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 11:26:28,844 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 11:26:28,844 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]=== [2020-10-29 11:26:28,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:26:28,845 INFO L82 PathProgramCache]: Analyzing trace with hash -3878121, now seen corresponding path program 1 times [2020-10-29 11:26:28,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:26:28,845 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [456180293] [2020-10-29 11:26:28,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:26:28,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:28,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:29,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:29,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:30,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:33,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:33,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-29 11:26:33,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 11:26:33,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4295 [2020-10-29 11:26:33,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:33,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:33,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 11:26:33,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:26:33,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-29 11:26:33,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:26:33,589 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:26:33,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:26:33,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:33,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:33,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:33,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:26:33,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:33,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-29 11:26:33,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:33,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:33,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:26:33,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:33,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 11:26:33,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:26:33,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:26:33,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:33,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:33,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:33,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:26:33,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:33,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:26:33,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:33,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:33,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:26:33,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:33,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:26:33,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:26:33,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:26:33,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:33,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:33,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:33,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:26:33,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:33,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:26:33,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:33,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:33,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:26:33,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:33,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:26:33,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:33,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:26:33,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:33,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:33,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:33,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:26:33,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:33,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:26:33,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:33,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:33,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:26:33,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:33,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:26:33,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:33,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:26:33,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:33,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:33,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:33,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:26:33,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:33,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:26:33,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:33,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:33,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:26:33,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:33,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:26:33,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:33,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-29 11:26:33,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:33,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:33,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:33,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 11:26:33,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:33,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:26:33,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:33,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:33,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:26:33,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:33,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 11:26:33,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:26:33,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 11:26:33,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:33,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:33,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:33,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:26:33,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:33,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:26:33,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:33,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:33,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 11:26:33,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:33,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:26:33,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:33,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-29 11:26:33,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:33,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:33,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:33,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:26:33,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:33,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:26:33,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:33,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:33,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:26:33,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:26:33,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:26:33,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:33,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 11:26:33,803 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [456180293] [2020-10-29 11:26:33,803 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 11:26:33,803 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-29 11:26:33,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601064176] [2020-10-29 11:26:33,805 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 11:26:33,805 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:26:33,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 11:26:33,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-29 11:26:33,806 INFO L87 Difference]: Start difference. First operand 269 states and 328 transitions. Second operand 8 states. [2020-10-29 11:26:34,353 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:26:35,451 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:26:36,344 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:26:36,795 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:26:37,295 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-29 11:26:38,015 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:26:39,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:26:39,891 INFO L93 Difference]: Finished difference Result 911 states and 1218 transitions. [2020-10-29 11:26:39,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 11:26:39,892 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2020-10-29 11:26:39,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:26:39,900 INFO L225 Difference]: With dead ends: 911 [2020-10-29 11:26:39,900 INFO L226 Difference]: Without dead ends: 622 [2020-10-29 11:26:39,905 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-29 11:26:39,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2020-10-29 11:26:40,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 480. [2020-10-29 11:26:40,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 480 states. [2020-10-29 11:26:40,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 589 transitions. [2020-10-29 11:26:40,050 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 589 transitions. Word has length 58 [2020-10-29 11:26:40,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:26:40,051 INFO L481 AbstractCegarLoop]: Abstraction has 480 states and 589 transitions. [2020-10-29 11:26:40,051 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 11:26:40,051 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 589 transitions. [2020-10-29 11:26:40,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-29 11:26:40,055 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:26:40,055 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 11:26:40,055 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 11:26:40,056 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]=== [2020-10-29 11:26:40,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:26:40,056 INFO L82 PathProgramCache]: Analyzing trace with hash -296156781, now seen corresponding path program 1 times [2020-10-29 11:26:40,056 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:26:40,057 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1643573824] [2020-10-29 11:26:40,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:26:40,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:40,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:40,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:40,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:41,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:41,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-29 11:26:41,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 11:26:41,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1716 [2020-10-29 11:26:41,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:41,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:41,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 11:26:41,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:26:41,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-29 11:26:41,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:42,222 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:26:42,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:26:42,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:42,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:42,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:42,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:26:42,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:42,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-29 11:26:42,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:42,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:42,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:26:42,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:42,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 11:26:42,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:42,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:26:42,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:42,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:42,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:42,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:26:42,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:42,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:26:42,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:42,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:42,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:26:42,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:42,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:26:42,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:42,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:26:42,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:42,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:42,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:42,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:26:42,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:42,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:26:42,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:42,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:42,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:26:42,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:42,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:26:42,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:42,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:26:42,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:42,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:42,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:42,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:26:42,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:42,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:26:42,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:42,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:42,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:26:42,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:42,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:26:42,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:42,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:26:42,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:42,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:42,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:42,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:26:42,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:42,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:26:42,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:42,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:42,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:26:42,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:42,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:26:42,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:42,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-29 11:26:42,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:42,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:42,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:42,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:26:42,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:42,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:26:42,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:42,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:42,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:26:42,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:42,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:26:42,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:42,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-29 11:26:42,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:42,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:42,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:42,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:42,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 11:26:42,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 11:26:42,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 11:26:42,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:42,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:42,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 11:26:42,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 11:26:42,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-29 11:26:42,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:42,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-29 11:26:42,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:42,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:42,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:42,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:26:42,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:42,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:26:42,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:42,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:42,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:26:42,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:42,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:26:42,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 11:26:42,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-29 11:26:42,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:42,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:42,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:42,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:26:42,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:42,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:26:42,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:42,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:42,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 11:26:42,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:42,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:26:42,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:42,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 11:26:42,439 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1643573824] [2020-10-29 11:26:42,439 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 11:26:42,439 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-29 11:26:42,440 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598323128] [2020-10-29 11:26:42,440 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 11:26:42,440 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:26:42,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 11:26:42,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-29 11:26:42,442 INFO L87 Difference]: Start difference. First operand 480 states and 589 transitions. Second operand 10 states. [2020-10-29 11:26:43,062 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:26:44,313 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:26:44,728 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:26:45,131 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-29 11:26:46,062 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:26:46,496 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:26:48,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:26:48,891 INFO L93 Difference]: Finished difference Result 1489 states and 2083 transitions. [2020-10-29 11:26:48,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-29 11:26:48,892 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 62 [2020-10-29 11:26:48,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:26:48,900 INFO L225 Difference]: With dead ends: 1489 [2020-10-29 11:26:48,901 INFO L226 Difference]: Without dead ends: 1033 [2020-10-29 11:26:48,905 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=135, Invalid=327, Unknown=0, NotChecked=0, Total=462 [2020-10-29 11:26:48,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1033 states. [2020-10-29 11:26:49,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1033 to 788. [2020-10-29 11:26:49,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 788 states. [2020-10-29 11:26:49,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 788 states to 788 states and 997 transitions. [2020-10-29 11:26:49,133 INFO L78 Accepts]: Start accepts. Automaton has 788 states and 997 transitions. Word has length 62 [2020-10-29 11:26:49,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:26:49,134 INFO L481 AbstractCegarLoop]: Abstraction has 788 states and 997 transitions. [2020-10-29 11:26:49,134 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 11:26:49,134 INFO L276 IsEmpty]: Start isEmpty. Operand 788 states and 997 transitions. [2020-10-29 11:26:49,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-29 11:26:49,138 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:26:49,138 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 11:26:49,139 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 11:26:49,139 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]=== [2020-10-29 11:26:49,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:26:49,140 INFO L82 PathProgramCache]: Analyzing trace with hash 90202035, now seen corresponding path program 1 times [2020-10-29 11:26:49,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:26:49,140 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [429544203] [2020-10-29 11:26:49,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:26:49,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:49,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:49,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:49,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-29 11:26:49,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:49,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 235 [2020-10-29 11:26:49,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:49,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:49,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 11:26:49,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-29 11:26:49,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:26:49,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:49,735 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:26:49,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:26:49,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:49,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:49,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:49,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:26:49,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:49,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 11:26:49,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:49,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:49,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:26:49,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:49,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:26:49,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:49,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:26:49,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:49,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:49,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:49,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:26:49,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:49,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 11:26:49,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:49,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:49,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:26:49,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:49,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:26:49,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:49,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:26:49,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:49,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:49,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:49,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:26:49,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:49,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 11:26:49,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:49,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:49,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:26:49,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:49,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:26:49,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:49,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:26:49,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:49,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:49,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:49,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:26:49,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:49,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:26:49,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:49,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:49,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:26:49,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:49,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:26:49,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:49,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:26:49,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:49,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:49,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:49,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:26:49,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:49,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 11:26:49,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:49,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:49,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:26:49,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:49,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:26:49,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:49,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-29 11:26:49,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:49,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:49,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:49,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:26:49,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:49,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:26:49,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:49,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:49,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:26:49,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:49,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:26:49,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:49,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-29 11:26:49,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:49,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:49,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:49,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-29 11:26:49,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:49,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 11:26:49,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:49,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:49,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 11:26:49,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-29 11:26:49,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:26:49,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:49,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 11:26:49,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:49,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:49,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:49,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-29 11:26:49,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:49,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 11:26:49,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:49,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:49,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 11:26:49,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-29 11:26:49,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:26:49,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:49,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 11:26:49,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:49,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:49,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:49,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-29 11:26:49,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:49,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 11:26:49,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:49,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:49,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 11:26:49,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 11:26:49,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:26:49,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:49,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 11:26:49,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:49,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:49,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:49,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-29 11:26:49,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:49,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 11:26:49,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:49,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:49,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 11:26:49,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 11:26:49,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:26:49,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:49,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 11:26:49,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:49,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:49,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:49,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 11:26:49,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:49,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:26:49,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:49,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:49,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 11:26:49,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:49,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:26:49,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:49,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-29 11:26:49,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:49,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:49,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:49,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:26:49,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:49,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:26:49,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:49,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:49,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:26:49,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:26:49,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:26:49,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:49,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-29 11:26:49,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:49,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:49,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:49,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:26:49,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:49,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:26:49,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:49,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:49,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:26:49,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:26:49,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:26:49,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:49,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-29 11:26:49,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:49,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:50,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:50,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:26:50,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:50,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:26:50,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:50,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:50,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:26:50,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:26:50,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:26:50,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:50,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 11:26:50,019 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [429544203] [2020-10-29 11:26:50,019 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 11:26:50,020 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-29 11:26:50,020 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321122198] [2020-10-29 11:26:50,021 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 11:26:50,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:26:50,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 11:26:50,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-29 11:26:50,023 INFO L87 Difference]: Start difference. First operand 788 states and 997 transitions. Second operand 8 states. [2020-10-29 11:26:51,229 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:26:51,619 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-29 11:26:52,007 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-29 11:26:53,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:26:53,726 INFO L93 Difference]: Finished difference Result 1809 states and 2543 transitions. [2020-10-29 11:26:53,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 11:26:53,727 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 89 [2020-10-29 11:26:53,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:26:53,734 INFO L225 Difference]: With dead ends: 1809 [2020-10-29 11:26:53,735 INFO L226 Difference]: Without dead ends: 1045 [2020-10-29 11:26:53,738 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-29 11:26:53,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2020-10-29 11:26:53,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 804. [2020-10-29 11:26:53,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 804 states. [2020-10-29 11:26:53,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 804 states to 804 states and 1013 transitions. [2020-10-29 11:26:53,919 INFO L78 Accepts]: Start accepts. Automaton has 804 states and 1013 transitions. Word has length 89 [2020-10-29 11:26:53,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:26:53,920 INFO L481 AbstractCegarLoop]: Abstraction has 804 states and 1013 transitions. [2020-10-29 11:26:53,920 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 11:26:53,920 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 1013 transitions. [2020-10-29 11:26:53,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-29 11:26:53,922 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:26:53,922 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 11:26:53,923 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 11:26:53,923 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]=== [2020-10-29 11:26:53,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:26:53,923 INFO L82 PathProgramCache]: Analyzing trace with hash 162588593, now seen corresponding path program 1 times [2020-10-29 11:26:53,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:26:53,924 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2170037] [2020-10-29 11:26:53,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:26:53,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:53,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:54,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:54,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-29 11:26:54,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:54,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 318 [2020-10-29 11:26:54,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:54,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:54,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 11:26:54,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-29 11:26:54,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 11:26:54,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:54,623 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:26:54,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:26:54,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:54,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:54,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:54,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:26:54,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:54,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 11:26:54,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:54,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:54,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:26:54,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:54,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:26:54,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:54,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:26:54,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:54,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:54,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:54,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:26:54,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:54,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 11:26:54,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:54,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:54,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:26:54,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:54,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:26:54,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:54,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:26:54,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:54,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:54,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:54,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:26:54,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:54,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 11:26:54,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:54,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:54,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:26:54,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:54,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:26:54,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:54,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:26:54,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:54,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:54,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:54,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:26:54,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:54,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 11:26:54,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:54,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:54,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:26:54,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:54,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:26:54,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:54,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:26:54,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:54,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:54,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:54,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:26:54,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:54,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 11:26:54,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:54,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:54,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:26:54,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:54,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:26:54,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:54,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-29 11:26:54,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:54,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:54,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:54,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:26:54,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:54,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:26:54,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:54,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:54,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:26:54,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:54,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:26:54,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:54,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-29 11:26:54,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:54,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:54,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:54,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-29 11:26:54,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:54,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 11:26:54,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:54,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:54,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 11:26:54,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-29 11:26:54,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 11:26:54,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:54,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 11:26:54,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:54,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:54,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:54,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-29 11:26:54,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:54,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 11:26:54,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:54,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:54,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 11:26:54,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 11:26:54,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 11:26:54,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:54,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 11:26:54,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:54,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:54,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:54,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-29 11:26:54,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:54,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 11:26:54,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:54,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:54,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 11:26:54,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-29 11:26:54,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 11:26:54,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:54,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 11:26:54,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:54,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:54,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:54,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-29 11:26:54,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:54,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 11:26:54,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:54,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:54,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 11:26:54,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:54,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-29 11:26:54,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:54,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 11:26:54,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:54,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:54,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:54,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 11:26:54,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:54,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:26:54,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:54,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:54,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:26:54,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:54,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:26:54,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:54,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-29 11:26:54,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:54,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:54,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:54,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:26:54,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:54,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 11:26:54,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:54,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:54,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:26:54,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:26:54,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:26:54,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:54,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-29 11:26:54,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:54,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:54,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:54,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:26:54,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:54,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 11:26:54,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:54,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:54,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:26:54,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:26:54,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:26:54,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:54,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-29 11:26:54,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:54,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:54,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:54,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:26:54,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:54,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 11:26:54,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:54,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:54,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:26:54,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:26:54,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:26:54,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:54,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 11:26:54,895 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2170037] [2020-10-29 11:26:54,895 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 11:26:54,895 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-29 11:26:54,895 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334634262] [2020-10-29 11:26:54,896 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-29 11:26:54,896 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:26:54,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-29 11:26:54,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-29 11:26:54,897 INFO L87 Difference]: Start difference. First operand 804 states and 1013 transitions. Second operand 9 states. [2020-10-29 11:26:56,181 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-29 11:26:56,573 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-29 11:26:56,989 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-29 11:26:57,437 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-29 11:26:59,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:26:59,066 INFO L93 Difference]: Finished difference Result 1833 states and 2486 transitions. [2020-10-29 11:26:59,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 11:26:59,070 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 89 [2020-10-29 11:26:59,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:26:59,079 INFO L225 Difference]: With dead ends: 1833 [2020-10-29 11:26:59,079 INFO L226 Difference]: Without dead ends: 1053 [2020-10-29 11:26:59,082 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-10-29 11:26:59,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1053 states. [2020-10-29 11:26:59,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1053 to 824. [2020-10-29 11:26:59,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 824 states. [2020-10-29 11:26:59,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 1033 transitions. [2020-10-29 11:26:59,267 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 1033 transitions. Word has length 89 [2020-10-29 11:26:59,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:26:59,267 INFO L481 AbstractCegarLoop]: Abstraction has 824 states and 1033 transitions. [2020-10-29 11:26:59,267 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-29 11:26:59,267 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 1033 transitions. [2020-10-29 11:26:59,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-29 11:26:59,269 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:26:59,270 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 11:26:59,270 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 11:26:59,270 INFO L429 AbstractCegarLoop]: === Iteration 6 === [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]=== [2020-10-29 11:26:59,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:26:59,271 INFO L82 PathProgramCache]: Analyzing trace with hash 419967796, now seen corresponding path program 1 times [2020-10-29 11:26:59,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:26:59,271 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [765290408] [2020-10-29 11:26:59,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:26:59,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:59,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:59,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:59,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-29 11:26:59,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:59,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 486 [2020-10-29 11:26:59,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:59,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:59,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 11:26:59,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:26:59,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-29 11:26:59,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:27:00,197 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:27:00,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:27:00,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:27:00,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:27:00,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:27:00,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:27:00,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:27:00,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-29 11:27:00,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:27:00,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:27:00,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:27:00,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:27:00,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 11:27:00,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:27:00,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:27:00,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:27:00,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:27:00,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:27:00,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:27:00,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:27:00,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:27:00,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:27:00,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:27:00,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:27:00,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:27:00,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:27:00,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:27:00,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:27:00,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:27:00,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:27:00,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:27:00,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:27:00,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:27:00,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:27:00,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:27:00,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:27:00,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:27:00,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:27:00,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:27:00,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:27:00,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:27:00,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:27:00,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:27:00,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:27:00,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:27:00,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:27:00,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:27:00,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:27:00,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:27:00,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:27:00,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:27:00,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:27:00,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:27:00,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:27:00,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:27:00,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:27:00,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:27:00,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:27:00,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:27:00,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:27:00,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:27:00,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:27:00,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:27:00,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:27:00,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:27:00,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:27:00,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-29 11:27:00,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:27:00,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:27:00,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:27:00,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:27:00,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:27:00,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:27:00,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:27:00,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:27:00,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:27:00,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:27:00,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:27:00,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:27:00,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-29 11:27:00,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:27:00,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:27:00,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:27:00,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-29 11:27:00,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:27:00,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 11:27:00,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:27:00,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:27:00,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:27:00,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-29 11:27:00,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-29 11:27:00,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:27:00,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 11:27:00,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:27:00,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:27:00,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:27:00,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-29 11:27:00,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:27:00,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 11:27:00,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:27:00,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:27:00,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:27:00,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:27:00,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-29 11:27:00,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:27:00,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 11:27:00,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:27:00,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:27:00,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:27:00,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-29 11:27:00,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:27:00,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 11:27:00,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:27:00,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:27:00,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:27:00,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:27:00,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-29 11:27:00,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:27:00,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 11:27:00,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:27:00,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:27:00,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:27:00,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-29 11:27:00,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:27:00,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 11:27:00,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:27:00,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:27:00,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:27:00,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:27:00,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 11:27:00,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:27:00,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 11:27:00,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:27:00,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:27:00,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:27:00,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 11:27:00,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:27:00,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:27:00,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:27:00,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:27:00,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:27:00,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:27:00,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-29 11:27:00,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:27:00,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-29 11:27:00,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:27:00,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:27:00,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:27:00,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:27:00,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:27:00,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:27:00,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:27:00,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:27:00,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:27:00,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:27:00,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:27:00,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:27:00,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-29 11:27:00,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:27:00,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:27:00,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:27:00,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:27:00,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:27:00,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 11:27:00,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:27:00,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:27:00,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:27:00,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:27:00,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:27:00,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:27:00,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-29 11:27:00,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:27:00,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:27:00,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:27:00,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:27:00,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:27:00,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:27:00,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:27:00,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:27:00,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:27:00,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:27:00,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:27:00,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:27:00,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 11:27:00,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [765290408] [2020-10-29 11:27:00,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 11:27:00,463 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-29 11:27:00,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277372937] [2020-10-29 11:27:00,464 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 11:27:00,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:27:00,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 11:27:00,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-29 11:27:00,464 INFO L87 Difference]: Start difference. First operand 824 states and 1033 transitions. Second operand 7 states. [2020-10-29 11:27:00,953 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:27:01,637 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:27:05,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:27:05,757 INFO L93 Difference]: Finished difference Result 2693 states and 3777 transitions. [2020-10-29 11:27:05,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-29 11:27:05,759 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 89 [2020-10-29 11:27:05,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:27:05,773 INFO L225 Difference]: With dead ends: 2693 [2020-10-29 11:27:05,773 INFO L226 Difference]: Without dead ends: 1875 [2020-10-29 11:27:05,778 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 35 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-10-29 11:27:05,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1875 states. [2020-10-29 11:27:06,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1875 to 1574. [2020-10-29 11:27:06,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1574 states. [2020-10-29 11:27:06,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 2011 transitions. [2020-10-29 11:27:06,124 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 2011 transitions. Word has length 89 [2020-10-29 11:27:06,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:27:06,124 INFO L481 AbstractCegarLoop]: Abstraction has 1574 states and 2011 transitions. [2020-10-29 11:27:06,124 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 11:27:06,124 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 2011 transitions. [2020-10-29 11:27:06,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-29 11:27:06,127 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:27:06,127 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 11:27:06,128 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 11:27:06,128 INFO L429 AbstractCegarLoop]: === Iteration 7 === [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]=== [2020-10-29 11:27:06,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:27:06,128 INFO L82 PathProgramCache]: Analyzing trace with hash -1891374598, now seen corresponding path program 1 times [2020-10-29 11:27:06,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:27:06,129 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1646270384] [2020-10-29 11:27:06,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:27:06,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-29 11:27:06,164 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-29 11:27:06,165 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-29 11:27:06,169 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 11:27:06,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 11:27:06 BoogieIcfgContainer [2020-10-29 11:27:06,192 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 11:27:06,194 INFO L168 Benchmark]: Toolchain (without parser) took 49064.74 ms. Allocated memory was 125.8 MB in the beginning and 653.3 MB in the end (delta: 527.4 MB). Free memory was 100.6 MB in the beginning and 428.8 MB in the end (delta: -328.2 MB). Peak memory consumption was 200.4 MB. Max. memory is 8.0 GB. [2020-10-29 11:27:06,194 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 125.8 MB. Free memory is still 85.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 11:27:06,195 INFO L168 Benchmark]: CACSL2BoogieTranslator took 640.64 ms. Allocated memory is still 125.8 MB. Free memory was 99.9 MB in the beginning and 78.1 MB in the end (delta: 21.8 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-10-29 11:27:06,196 INFO L168 Benchmark]: Boogie Preprocessor took 158.59 ms. Allocated memory is still 125.8 MB. Free memory was 78.1 MB in the beginning and 74.2 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-29 11:27:06,197 INFO L168 Benchmark]: RCFGBuilder took 1265.99 ms. Allocated memory was 125.8 MB in the beginning and 151.0 MB in the end (delta: 25.2 MB). Free memory was 74.0 MB in the beginning and 93.0 MB in the end (delta: -19.0 MB). Peak memory consumption was 22.9 MB. Max. memory is 8.0 GB. [2020-10-29 11:27:06,197 INFO L168 Benchmark]: TraceAbstraction took 46983.96 ms. Allocated memory was 151.0 MB in the beginning and 653.3 MB in the end (delta: 502.3 MB). Free memory was 92.5 MB in the beginning and 428.8 MB in the end (delta: -336.3 MB). Peak memory consumption was 166.0 MB. Max. memory is 8.0 GB. [2020-10-29 11:27:06,201 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 125.8 MB. Free memory is still 85.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 640.64 ms. Allocated memory is still 125.8 MB. Free memory was 99.9 MB in the beginning and 78.1 MB in the end (delta: 21.8 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 158.59 ms. Allocated memory is still 125.8 MB. Free memory was 78.1 MB in the beginning and 74.2 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1265.99 ms. Allocated memory was 125.8 MB in the beginning and 151.0 MB in the end (delta: 25.2 MB). Free memory was 74.0 MB in the beginning and 93.0 MB in the end (delta: -19.0 MB). Peak memory consumption was 22.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 46983.96 ms. Allocated memory was 151.0 MB in the beginning and 653.3 MB in the end (delta: 502.3 MB). Free memory was 92.5 MB in the beginning and 428.8 MB in the end (delta: -336.3 MB). Peak memory consumption was 166.0 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: [L161] int pumpRunning = 0; [L162] int systemActive = 1; [L401] int waterLevel = 1; [L402] int methaneLevelCritical = 0; [L513] int cleanupTimeShifts = 4; [L804] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L586] int retValue_acc ; [L587] int tmp ; [L591] FCALL select_helpers() [L592] FCALL select_features() [L593] CALL, EXPR valid_product() [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L593] RET, EXPR valid_product() [L593] tmp = valid_product() [L595] COND TRUE \read(tmp) [L597] FCALL setup() [L598] CALL runTest() [L580] CALL test() [L86] int splverifierCounter ; [L87] int tmp ; [L88] int tmp___0 ; [L89] int tmp___1 ; [L90] int tmp___2 ; [L93] splverifierCounter = 0 [L95] COND TRUE 1 [L97] COND TRUE splverifierCounter < 4 [L103] tmp = __VERIFIER_nondet_int() [L105] COND TRUE \read(tmp) [L107] CALL waterRise() [L419] COND TRUE waterLevel < 2 [L420] waterLevel = waterLevel + 1 [L107] RET waterRise() [L113] tmp___0 = __VERIFIER_nondet_int() [L115] COND TRUE \read(tmp___0) [L117] CALL changeMethaneLevel() [L431] COND FALSE !(\read(methaneLevelCritical)) [L434] methaneLevelCritical = 1 [L117] RET changeMethaneLevel() [L123] tmp___2 = __VERIFIER_nondet_int() [L125] COND TRUE \read(tmp___2) [L140] CALL timeShift() [L169] COND FALSE !(\read(pumpRunning)) [L176] COND TRUE \read(systemActive) [L178] CALL processEnvironment() [L250] int tmp ; [L253] COND FALSE !(\read(pumpRunning)) [L268] CALL processEnvironment__wrappee__lowWaterSensor() [L224] int tmp ; [L227] COND FALSE !(\read(pumpRunning)) [L242] CALL processEnvironment__wrappee__highWaterSensor() [L198] int tmp ; [L201] COND TRUE ! pumpRunning [L203] CALL, EXPR isHighWaterLevel() [L347] int retValue_acc ; [L348] int tmp ; [L349] int tmp___0 ; [L353] CALL, EXPR isHighWaterSensorDry() [L481] int retValue_acc ; [L484] COND FALSE !(waterLevel < 2) [L488] retValue_acc = 0 [L489] return (retValue_acc); [L353] RET, EXPR isHighWaterSensorDry() [L353] tmp = isHighWaterSensorDry() [L355] COND FALSE !(\read(tmp)) [L358] tmp___0 = 1 [L360] retValue_acc = tmp___0 [L361] return (retValue_acc); [L203] RET, EXPR isHighWaterLevel() [L203] tmp = isHighWaterLevel() [L205] COND TRUE \read(tmp) [L207] CALL activatePump() [L278] pumpRunning = 1 [L207] RET activatePump() [L242] RET processEnvironment__wrappee__highWaterSensor() [L268] RET processEnvironment__wrappee__lowWaterSensor() [L178] RET processEnvironment() [L184] CALL __utac_acc__Specification1_spec__1() [L610] int tmp ; [L611] int tmp___0 ; [L615] CALL, EXPR isMethaneLevelCritical() [L440] int retValue_acc ; [L443] retValue_acc = methaneLevelCritical [L444] return (retValue_acc); [L615] RET, EXPR isMethaneLevelCritical() [L615] tmp = isMethaneLevelCritical() [L617] COND TRUE \read(tmp) [L619] CALL, EXPR isPumpRunning() [L302] int retValue_acc ; [L305] retValue_acc = pumpRunning [L306] return (retValue_acc); [L619] RET, EXPR isPumpRunning() [L619] tmp___0 = isPumpRunning() [L621] COND TRUE \read(tmp___0) [L623] CALL __automaton_fail() [L508] CALL reach_error() [L3] __assert_fail("0", "minepump_spec1_product55.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 43 procedures, 263 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 46.8s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 29.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 902 SDtfs, 1901 SDslu, 939 SDs, 0 SdLazy, 4962 SolverSat, 1260 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 230 GetRequests, 155 SyntacticMatches, 4 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 10.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1574occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 1221 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 15.8s InterpolantComputationTime, 527 NumberOfCodeBlocks, 527 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 428 ConstructedInterpolants, 0 QuantifiedInterpolants, 142358 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 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...