/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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_product52.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 16:41:51,310 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 16:41:51,314 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 16:41:51,371 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 16:41:51,371 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 16:41:51,378 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 16:41:51,380 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 16:41:51,385 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 16:41:51,389 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 16:41:51,397 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 16:41:51,398 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 16:41:51,399 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 16:41:51,399 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 16:41:51,401 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 16:41:51,402 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 16:41:51,403 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 16:41:51,404 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 16:41:51,406 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 16:41:51,424 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 16:41:51,426 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 16:41:51,428 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 16:41:51,430 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 16:41:51,431 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 16:41:51,433 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 16:41:51,436 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 16:41:51,436 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 16:41:51,437 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 16:41:51,438 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 16:41:51,438 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 16:41:51,440 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 16:41:51,440 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 16:41:51,441 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 16:41:51,442 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 16:41:51,443 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 16:41:51,444 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 16:41:51,444 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 16:41:51,445 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 16:41:51,446 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 16:41:51,446 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 16:41:51,447 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 16:41:51,448 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 16:41:51,449 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 [2020-10-28 16:41:51,480 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 16:41:51,480 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 16:41:51,484 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 16:41:51,485 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 16:41:51,485 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 16:41:51,485 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 16:41:51,485 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 16:41:51,486 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 16:41:51,486 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 16:41:51,487 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 16:41:51,488 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 16:41:51,488 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 16:41:51,488 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 16:41:51,488 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 16:41:51,488 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 16:41:51,489 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 16:41:51,489 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 16:41:51,490 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 16:41:51,490 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 16:41:51,491 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 16:41:51,491 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 16:41:51,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 16:41:51,492 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 16:41:51,492 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 16:41:51,492 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 16:41:51,492 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 16:41:51,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 16:41:51,493 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 16:41:51,493 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 16:41:51,493 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 16:41:51,945 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 16:41:51,974 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 16:41:51,978 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 16:41:51,979 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 16:41:51,980 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 16:41:51,981 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product52.cil.c [2020-10-28 16:41:52,056 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/152d8e0fd/c106d083530843f49e97faa03216104e/FLAG7ee9cc594 [2020-10-28 16:41:52,740 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 16:41:52,743 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product52.cil.c [2020-10-28 16:41:52,771 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/152d8e0fd/c106d083530843f49e97faa03216104e/FLAG7ee9cc594 [2020-10-28 16:41:53,019 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/152d8e0fd/c106d083530843f49e97faa03216104e [2020-10-28 16:41:53,024 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 16:41:53,032 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 16:41:53,037 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 16:41:53,037 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 16:41:53,042 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 16:41:53,043 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 04:41:53" (1/1) ... [2020-10-28 16:41:53,054 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4042ade and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:41:53, skipping insertion in model container [2020-10-28 16:41:53,054 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 04:41:53" (1/1) ... [2020-10-28 16:41:53,064 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 16:41:53,141 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 16:41:53,572 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 16:41:53,584 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 16:41:53,670 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 16:41:53,721 INFO L208 MainTranslator]: Completed translation [2020-10-28 16:41:53,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:41:53 WrapperNode [2020-10-28 16:41:53,722 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 16:41:53,723 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 16:41:53,724 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 16:41:53,724 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 16:41:53,738 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:41:53" (1/1) ... [2020-10-28 16:41:53,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:41:53" (1/1) ... [2020-10-28 16:41:53,757 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:41:53" (1/1) ... [2020-10-28 16:41:53,758 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:41:53" (1/1) ... [2020-10-28 16:41:53,828 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:41:53" (1/1) ... [2020-10-28 16:41:53,854 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:41:53" (1/1) ... [2020-10-28 16:41:53,864 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:41:53" (1/1) ... [2020-10-28 16:41:53,876 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 16:41:53,877 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 16:41:53,878 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 16:41:53,878 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 16:41:53,879 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:41:53" (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 [2020-10-28 16:41:53,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 16:41:53,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 16:41:53,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-28 16:41:53,968 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 16:41:53,968 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-28 16:41:53,969 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-28 16:41:53,969 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-28 16:41:53,969 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-28 16:41:53,969 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-28 16:41:53,969 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-28 16:41:53,969 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-28 16:41:53,970 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-28 16:41:53,970 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-28 16:41:53,970 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-28 16:41:53,970 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-28 16:41:53,970 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-28 16:41:53,971 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-28 16:41:53,971 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-28 16:41:53,971 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-28 16:41:53,971 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-28 16:41:53,971 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-28 16:41:53,971 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-28 16:41:53,971 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-28 16:41:53,972 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-28 16:41:53,972 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-28 16:41:53,972 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-28 16:41:53,972 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-28 16:41:53,972 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-28 16:41:53,972 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-28 16:41:53,973 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-28 16:41:53,973 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-28 16:41:53,973 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 16:41:53,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-10-28 16:41:53,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-28 16:41:53,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-28 16:41:53,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-28 16:41:53,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-28 16:41:53,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-28 16:41:53,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-28 16:41:53,974 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-28 16:41:53,974 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-28 16:41:53,974 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-28 16:41:53,975 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-28 16:41:53,975 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 16:41:53,975 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 16:41:53,975 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 16:41:53,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 16:41:53,975 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 16:41:53,975 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-28 16:41:53,976 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-28 16:41:53,976 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-28 16:41:53,976 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-28 16:41:53,976 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-28 16:41:53,976 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-28 16:41:53,976 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-28 16:41:53,977 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-28 16:41:53,977 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-28 16:41:53,977 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-28 16:41:53,977 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-28 16:41:53,977 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-28 16:41:53,977 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-28 16:41:53,978 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-28 16:41:53,978 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-28 16:41:53,978 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-28 16:41:53,978 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-10-28 16:41:53,978 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-28 16:41:53,978 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-28 16:41:53,979 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-28 16:41:53,979 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-28 16:41:53,979 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-28 16:41:53,979 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-28 16:41:53,979 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-28 16:41:53,979 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-28 16:41:53,980 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-28 16:41:53,980 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-28 16:41:53,980 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-28 16:41:53,980 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-28 16:41:53,980 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-28 16:41:53,980 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-28 16:41:53,981 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-28 16:41:53,981 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 16:41:53,981 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-28 16:41:53,981 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-28 16:41:53,981 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-28 16:41:53,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-28 16:41:53,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-28 16:41:53,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 16:41:53,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-28 16:41:53,982 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-28 16:41:53,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 16:41:53,982 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-28 16:41:53,982 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-28 16:41:53,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 16:41:53,983 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-28 16:41:53,983 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-28 16:41:53,983 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-28 16:41:53,983 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-28 16:41:53,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 16:41:53,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 16:41:53,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 16:41:55,341 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 16:41:55,341 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-28 16:41:55,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 04:41:55 BoogieIcfgContainer [2020-10-28 16:41:55,344 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 16:41:55,346 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 16:41:55,346 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 16:41:55,350 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 16:41:55,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 04:41:53" (1/3) ... [2020-10-28 16:41:55,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6747e56e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 04:41:55, skipping insertion in model container [2020-10-28 16:41:55,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:41:53" (2/3) ... [2020-10-28 16:41:55,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6747e56e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 04:41:55, skipping insertion in model container [2020-10-28 16:41:55,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 04:41:55" (3/3) ... [2020-10-28 16:41:55,354 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product52.cil.c [2020-10-28 16:41:55,367 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 16:41:55,373 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-28 16:41:55,387 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-28 16:41:55,416 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 16:41:55,417 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 16:41:55,417 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 16:41:55,417 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 16:41:55,417 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 16:41:55,417 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 16:41:55,418 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 16:41:55,418 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 16:41:55,442 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states. [2020-10-28 16:41:55,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-28 16:41:55,452 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:41:55,453 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] [2020-10-28 16:41:55,454 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]=== [2020-10-28 16:41:55,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:41:55,461 INFO L82 PathProgramCache]: Analyzing trace with hash -701462188, now seen corresponding path program 1 times [2020-10-28 16:41:55,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:41:55,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [225024336] [2020-10-28 16:41:55,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:41:55,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:55,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:56,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:56,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:58,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:58,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:00,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:00,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-28 16:42:00,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 16:42:00,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-28 16:42:00,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:00,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:00,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:00,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-28 16:42:00,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:00,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 16:42:01,235 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:42:01,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:42:01,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:01,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:01,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:01,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:01,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:01,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-28 16:42:01,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:01,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:01,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:01,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:01,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:01,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:01,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:42:01,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:01,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:01,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:01,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:42:01,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:01,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:01,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:01,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:01,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:01,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:01,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:01,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:01,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:42:01,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:01,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:01,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:01,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:42:01,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:01,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:01,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:01,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:01,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:01,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:01,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:01,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:01,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:42:01,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:01,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:01,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:01,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:01,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:01,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:01,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:01,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:01,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:01,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:01,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:01,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:01,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:42:01,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:01,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:01,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:01,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:42:01,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:01,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:01,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:01,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:01,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:01,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:01,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:01,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:01,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-28 16:42:01,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:01,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:01,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:01,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:01,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:01,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:01,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:01,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:01,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:01,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:42:01,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:01,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:01,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-28 16:42:01,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:01,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:01,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:01,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:01,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:01,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:01,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:01,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:01,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:01,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:42:01,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:01,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:01,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:42:01,390 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [225024336] [2020-10-28 16:42:01,393 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:42:01,393 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 16:42:01,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75877760] [2020-10-28 16:42:01,399 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-28 16:42:01,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:42:01,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-28 16:42:01,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-28 16:42:01,417 INFO L87 Difference]: Start difference. First operand 188 states. Second operand 3 states. [2020-10-28 16:42:02,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:42:02,942 INFO L93 Difference]: Finished difference Result 325 states and 423 transitions. [2020-10-28 16:42:02,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-28 16:42:02,944 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-10-28 16:42:02,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:42:02,958 INFO L225 Difference]: With dead ends: 325 [2020-10-28 16:42:02,959 INFO L226 Difference]: Without dead ends: 174 [2020-10-28 16:42:02,963 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-28 16:42:02,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2020-10-28 16:42:03,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 139. [2020-10-28 16:42:03,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2020-10-28 16:42:03,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 163 transitions. [2020-10-28 16:42:03,069 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 163 transitions. Word has length 47 [2020-10-28 16:42:03,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:42:03,070 INFO L481 AbstractCegarLoop]: Abstraction has 139 states and 163 transitions. [2020-10-28 16:42:03,070 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-28 16:42:03,070 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 163 transitions. [2020-10-28 16:42:03,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-28 16:42:03,073 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:42:03,073 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] [2020-10-28 16:42:03,074 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 16:42:03,074 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]=== [2020-10-28 16:42:03,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:42:03,075 INFO L82 PathProgramCache]: Analyzing trace with hash -904665855, now seen corresponding path program 1 times [2020-10-28 16:42:03,075 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:42:03,075 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [377388373] [2020-10-28 16:42:03,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:42:03,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:03,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:03,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:03,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:05,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:06,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:08,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:08,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-28 16:42:08,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 16:42:08,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-28 16:42:08,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:08,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:08,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:42:08,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-28 16:42:08,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 16:42:08,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:08,550 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:42:08,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:42:08,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:08,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:08,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:08,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:08,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:08,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-28 16:42:08,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:08,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:08,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:08,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:08,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:08,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:42:08,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:42:08,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:08,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:08,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:08,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:42:08,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:08,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:08,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:08,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:08,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:08,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:08,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:08,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:42:08,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:42:08,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:08,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:08,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:08,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:42:08,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:08,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:08,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:08,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:08,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:08,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:08,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:08,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:42:08,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:42:08,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:08,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:08,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:08,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:08,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:08,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:42:08,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:08,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:08,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:08,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:08,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:08,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:42:08,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:42:08,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:08,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:08,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:08,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:42:08,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:08,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:42:08,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:08,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:08,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:08,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:08,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:08,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:42:08,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-28 16:42:08,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:08,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:08,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:08,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:08,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:08,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 16:42:08,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:08,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:08,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:08,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:42:08,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:08,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:42:08,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-28 16:42:08,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:08,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:08,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:08,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:08,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:08,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:08,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:08,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:08,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:08,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:42:08,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:08,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:42:08,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:42:08,704 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [377388373] [2020-10-28 16:42:08,705 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:42:08,705 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 16:42:08,705 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237224511] [2020-10-28 16:42:08,708 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 16:42:08,709 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:42:08,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 16:42:08,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 16:42:08,710 INFO L87 Difference]: Start difference. First operand 139 states and 163 transitions. Second operand 4 states. [2020-10-28 16:42:09,295 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-28 16:42:10,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:42:10,440 INFO L93 Difference]: Finished difference Result 245 states and 298 transitions. [2020-10-28 16:42:10,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 16:42:10,444 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 48 [2020-10-28 16:42:10,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:42:10,450 INFO L225 Difference]: With dead ends: 245 [2020-10-28 16:42:10,450 INFO L226 Difference]: Without dead ends: 158 [2020-10-28 16:42:10,455 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 16:42:10,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-10-28 16:42:10,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 130. [2020-10-28 16:42:10,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-28 16:42:10,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 151 transitions. [2020-10-28 16:42:10,535 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 151 transitions. Word has length 48 [2020-10-28 16:42:10,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:42:10,535 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 151 transitions. [2020-10-28 16:42:10,536 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 16:42:10,536 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 151 transitions. [2020-10-28 16:42:10,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-28 16:42:10,544 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:42:10,544 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] [2020-10-28 16:42:10,544 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 16:42:10,545 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]=== [2020-10-28 16:42:10,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:42:10,546 INFO L82 PathProgramCache]: Analyzing trace with hash -1166555827, now seen corresponding path program 1 times [2020-10-28 16:42:10,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:42:10,547 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1759881499] [2020-10-28 16:42:10,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:42:10,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:10,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:10,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:11,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:11,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:12,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:12,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-28 16:42:12,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 16:42:12,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2383 [2020-10-28 16:42:12,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:12,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:12,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 16:42:12,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:42:12,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-28 16:42:12,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:13,457 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:42:13,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:42:13,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:13,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:13,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:13,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:13,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:13,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-28 16:42:13,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:13,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:13,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:42:13,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:13,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 16:42:13,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:13,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:42:13,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:13,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:13,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:13,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:42:13,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:13,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:13,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:13,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:13,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:42:13,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:13,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:42:13,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:13,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:42:13,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:13,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:13,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:13,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:42:13,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:13,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:13,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:13,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:13,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:42:13,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:13,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:42:13,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:13,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:42:13,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:13,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:13,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:13,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:13,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:13,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:13,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:13,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:13,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:42:13,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:13,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:42:13,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:13,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:42:13,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:13,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:13,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:13,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:42:13,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:13,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:13,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:13,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:13,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:42:13,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:13,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:42:13,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:13,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-28 16:42:13,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:13,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:13,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:13,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:13,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:13,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:13,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:13,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:13,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:13,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:42:13,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:13,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:13,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-28 16:42:13,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:13,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:13,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:13,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:13,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:13,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:13,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:13,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:13,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:13,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:42:13,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:13,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:13,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:42:13,630 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1759881499] [2020-10-28 16:42:13,630 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:42:13,630 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 16:42:13,631 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438706768] [2020-10-28 16:42:13,631 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 16:42:13,631 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:42:13,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 16:42:13,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 16:42:13,632 INFO L87 Difference]: Start difference. First operand 130 states and 151 transitions. Second operand 5 states. [2020-10-28 16:42:14,097 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:42:16,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:42:16,236 INFO L93 Difference]: Finished difference Result 382 states and 469 transitions. [2020-10-28 16:42:16,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 16:42:16,241 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 53 [2020-10-28 16:42:16,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:42:16,245 INFO L225 Difference]: With dead ends: 382 [2020-10-28 16:42:16,245 INFO L226 Difference]: Without dead ends: 276 [2020-10-28 16:42:16,247 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 16:42:16,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2020-10-28 16:42:16,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 225. [2020-10-28 16:42:16,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2020-10-28 16:42:16,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 268 transitions. [2020-10-28 16:42:16,336 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 268 transitions. Word has length 53 [2020-10-28 16:42:16,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:42:16,336 INFO L481 AbstractCegarLoop]: Abstraction has 225 states and 268 transitions. [2020-10-28 16:42:16,336 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 16:42:16,336 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 268 transitions. [2020-10-28 16:42:16,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-28 16:42:16,338 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:42:16,338 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] [2020-10-28 16:42:16,339 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 16:42:16,339 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]=== [2020-10-28 16:42:16,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:42:16,339 INFO L82 PathProgramCache]: Analyzing trace with hash -1010171073, now seen corresponding path program 1 times [2020-10-28 16:42:16,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:42:16,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1409881311] [2020-10-28 16:42:16,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:42:16,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:16,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:16,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:16,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:18,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:20,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:20,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-28 16:42:20,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 16:42:20,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4265 [2020-10-28 16:42:20,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:20,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:20,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 16:42:20,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-28 16:42:20,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 16:42:20,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:21,054 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:42:21,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:42:21,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:21,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:21,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:21,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:21,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:21,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-28 16:42:21,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:21,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:21,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:21,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:21,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:21,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:21,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:42:21,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:21,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:21,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:21,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:42:21,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:21,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:42:21,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:21,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:21,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:21,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:21,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:21,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:21,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:42:21,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:21,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:21,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:21,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:42:21,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:21,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:42:21,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:21,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:21,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:21,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:21,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:21,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:21,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:42:21,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:21,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:21,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:21,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:21,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:21,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:42:21,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:21,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:21,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:21,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:21,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:21,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:21,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:42:21,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:21,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:21,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:21,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:42:21,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:21,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:42:21,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:21,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:21,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:21,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:21,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:21,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:21,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-28 16:42:21,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:21,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:21,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:21,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 16:42:21,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:21,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 16:42:21,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:21,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:21,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:42:21,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:21,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 16:42:21,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:21,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-28 16:42:21,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:21,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:21,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:21,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:21,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:21,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:42:21,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:21,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:21,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:42:21,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:21,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:42:21,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:21,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-28 16:42:21,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:21,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:21,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:21,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:21,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:21,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 16:42:21,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:21,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:21,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 16:42:21,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:21,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:42:21,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:21,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:42:21,213 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1409881311] [2020-10-28 16:42:21,213 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:42:21,213 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 16:42:21,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15985634] [2020-10-28 16:42:21,214 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 16:42:21,214 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:42:21,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 16:42:21,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-28 16:42:21,215 INFO L87 Difference]: Start difference. First operand 225 states and 268 transitions. Second operand 8 states. [2020-10-28 16:42:21,761 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-28 16:42:22,999 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-28 16:42:23,489 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-28 16:42:23,931 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-28 16:42:24,729 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:42:25,219 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-28 16:42:26,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:42:26,386 INFO L93 Difference]: Finished difference Result 621 states and 807 transitions. [2020-10-28 16:42:26,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 16:42:26,387 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2020-10-28 16:42:26,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:42:26,393 INFO L225 Difference]: With dead ends: 621 [2020-10-28 16:42:26,393 INFO L226 Difference]: Without dead ends: 420 [2020-10-28 16:42:26,395 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-28 16:42:26,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2020-10-28 16:42:26,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 361. [2020-10-28 16:42:26,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2020-10-28 16:42:26,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 441 transitions. [2020-10-28 16:42:26,515 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 441 transitions. Word has length 58 [2020-10-28 16:42:26,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:42:26,515 INFO L481 AbstractCegarLoop]: Abstraction has 361 states and 441 transitions. [2020-10-28 16:42:26,515 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 16:42:26,516 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 441 transitions. [2020-10-28 16:42:26,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-28 16:42:26,517 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:42:26,518 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] [2020-10-28 16:42:26,518 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 16:42:26,518 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]=== [2020-10-28 16:42:26,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:42:26,519 INFO L82 PathProgramCache]: Analyzing trace with hash 1786403935, now seen corresponding path program 1 times [2020-10-28 16:42:26,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:42:26,519 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1341830169] [2020-10-28 16:42:26,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:42:26,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:26,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:26,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:29,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:29,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-28 16:42:29,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 16:42:29,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2959 [2020-10-28 16:42:29,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:29,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:29,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 16:42:29,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-28 16:42:29,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 16:42:29,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:42:29,884 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:42:29,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:42:29,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:29,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:29,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:29,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:29,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:29,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 16:42:29,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:29,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:29,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:29,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:29,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:29,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:29,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:42:29,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:29,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:29,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:29,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:42:29,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:29,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:42:29,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:29,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:29,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:29,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:29,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:29,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:29,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:42:29,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:29,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:29,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:29,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:42:29,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:29,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:42:29,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:29,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:29,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:29,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:29,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:29,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:29,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:42:29,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:29,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:29,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:29,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:29,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:29,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:42:29,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:29,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:29,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:29,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:29,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:29,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:29,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:42:29,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:29,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:29,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:29,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:42:29,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:29,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:42:29,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:29,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:29,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:29,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:29,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:29,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:42:29,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-28 16:42:29,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:29,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:29,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:29,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-28 16:42:29,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:29,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 16:42:29,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:29,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:29,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 16:42:29,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-28 16:42:29,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 16:42:29,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:29,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 16:42:29,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:29,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:30,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:30,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 16:42:30,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:30,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 16:42:30,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:30,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:30,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 16:42:30,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-28 16:42:30,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 16:42:30,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:30,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 16:42:30,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:30,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:30,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:30,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 16:42:30,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:30,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 16:42:30,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:30,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:30,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 16:42:30,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:30,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-28 16:42:30,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:30,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 16:42:30,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:30,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:30,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:30,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 16:42:30,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:30,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:30,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:30,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:30,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:30,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:30,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:30,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:30,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-28 16:42:30,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:30,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:30,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:30,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:30,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:30,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:30,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:30,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:30,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:30,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:42:30,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:30,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:30,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-28 16:42:30,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:30,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:30,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:30,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:30,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:30,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:30,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:30,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:30,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:30,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:42:30,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:30,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:30,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-28 16:42:30,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:30,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:30,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:30,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:30,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:30,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:30,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:30,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:30,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:30,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:42:30,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:30,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:30,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:42:30,146 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1341830169] [2020-10-28 16:42:30,146 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:42:30,146 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 16:42:30,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414896137] [2020-10-28 16:42:30,147 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 16:42:30,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:42:30,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 16:42:30,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-28 16:42:30,148 INFO L87 Difference]: Start difference. First operand 361 states and 441 transitions. Second operand 8 states. [2020-10-28 16:42:31,498 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-28 16:42:31,940 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-28 16:42:32,424 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-28 16:42:32,855 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-28 16:42:33,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:42:33,920 INFO L93 Difference]: Finished difference Result 771 states and 986 transitions. [2020-10-28 16:42:33,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 16:42:33,921 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 81 [2020-10-28 16:42:33,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:42:33,924 INFO L225 Difference]: With dead ends: 771 [2020-10-28 16:42:33,924 INFO L226 Difference]: Without dead ends: 434 [2020-10-28 16:42:33,926 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2020-10-28 16:42:33,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2020-10-28 16:42:34,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 374. [2020-10-28 16:42:34,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-10-28 16:42:34,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 455 transitions. [2020-10-28 16:42:34,039 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 455 transitions. Word has length 81 [2020-10-28 16:42:34,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:42:34,040 INFO L481 AbstractCegarLoop]: Abstraction has 374 states and 455 transitions. [2020-10-28 16:42:34,040 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 16:42:34,040 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 455 transitions. [2020-10-28 16:42:34,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-28 16:42:34,042 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:42:34,042 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] [2020-10-28 16:42:34,042 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 16:42:34,043 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]=== [2020-10-28 16:42:34,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:42:34,043 INFO L82 PathProgramCache]: Analyzing trace with hash -1806963487, now seen corresponding path program 1 times [2020-10-28 16:42:34,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:42:34,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [486964212] [2020-10-28 16:42:34,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:42:34,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:34,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:34,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:36,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:36,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-28 16:42:36,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 16:42:36,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2225 [2020-10-28 16:42:36,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:36,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:36,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 16:42:36,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-28 16:42:36,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:42:36,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:36,710 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:42:36,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:42:36,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:36,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:36,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:36,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:36,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:36,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-28 16:42:36,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:36,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:36,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:36,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:36,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:36,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:36,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:42:36,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:36,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:36,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:36,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:42:36,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:36,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:36,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:36,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:36,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:36,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:36,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:36,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:42:36,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:42:36,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:36,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:36,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:36,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:42:36,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:36,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:36,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:36,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:36,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:36,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:36,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:36,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:36,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:42:36,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:36,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:36,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:36,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:36,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:36,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:36,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:36,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:36,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:36,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:36,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:36,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:42:36,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:42:36,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:36,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:36,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:36,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:42:36,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:36,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:42:36,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:36,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:36,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:36,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:36,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:36,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:42:36,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-28 16:42:36,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:36,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:36,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:36,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-28 16:42:36,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:36,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-28 16:42:36,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:36,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:36,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 16:42:36,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-28 16:42:36,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:42:36,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:42:36,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 16:42:36,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:36,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:36,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:36,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 16:42:36,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:36,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-28 16:42:36,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:36,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:36,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 16:42:36,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-28 16:42:36,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:42:36,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:42:36,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 16:42:36,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:36,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:36,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:36,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 16:42:36,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:36,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 16:42:36,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:36,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:36,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 16:42:36,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 16:42:36,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:42:36,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:42:36,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 16:42:36,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:36,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:36,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:36,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 16:42:36,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:36,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 16:42:37,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:37,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:37,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 16:42:37,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:37,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:42:37,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:42:37,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-28 16:42:37,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:37,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:37,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:37,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:37,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:37,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:37,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:37,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:37,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:37,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:42:37,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:37,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:42:37,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-28 16:42:37,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:37,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:37,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:37,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:37,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:37,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:37,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:37,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:37,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:37,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:42:37,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:37,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:42:37,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-28 16:42:37,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:37,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:37,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:37,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:37,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:37,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:37,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:37,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:37,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:37,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:42:37,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:37,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:42:37,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:42:37,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [486964212] [2020-10-28 16:42:37,068 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:42:37,069 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-28 16:42:37,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887046236] [2020-10-28 16:42:37,069 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 16:42:37,070 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:42:37,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 16:42:37,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-28 16:42:37,071 INFO L87 Difference]: Start difference. First operand 374 states and 455 transitions. Second operand 7 states. [2020-10-28 16:42:38,208 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-28 16:42:38,616 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-28 16:42:39,002 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-28 16:42:40,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:42:40,080 INFO L93 Difference]: Finished difference Result 792 states and 1029 transitions. [2020-10-28 16:42:40,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 16:42:40,082 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 81 [2020-10-28 16:42:40,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:42:40,086 INFO L225 Difference]: With dead ends: 792 [2020-10-28 16:42:40,086 INFO L226 Difference]: Without dead ends: 442 [2020-10-28 16:42:40,088 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-10-28 16:42:40,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2020-10-28 16:42:40,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 382. [2020-10-28 16:42:40,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 382 states. [2020-10-28 16:42:40,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 463 transitions. [2020-10-28 16:42:40,196 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 463 transitions. Word has length 81 [2020-10-28 16:42:40,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:42:40,196 INFO L481 AbstractCegarLoop]: Abstraction has 382 states and 463 transitions. [2020-10-28 16:42:40,197 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 16:42:40,197 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 463 transitions. [2020-10-28 16:42:40,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-28 16:42:40,198 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:42:40,198 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] [2020-10-28 16:42:40,199 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 16:42:40,199 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]=== [2020-10-28 16:42:40,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:42:40,200 INFO L82 PathProgramCache]: Analyzing trace with hash -81482590, now seen corresponding path program 1 times [2020-10-28 16:42:40,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:42:40,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1038825667] [2020-10-28 16:42:40,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:42:40,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:40,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:40,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:42,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:42,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-28 16:42:42,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 16:42:42,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2078 [2020-10-28 16:42:42,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:42,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:42,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 16:42:42,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:42:42,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-28 16:42:42,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:42,748 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:42:42,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:42:42,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:42,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:42,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:42,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:42,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:42,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-28 16:42:42,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:42,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:42,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:42:42,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:42,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 16:42:42,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:42,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:42:42,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:42,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:42,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:42,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:42:42,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:42,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:42,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:42,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:42,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:42:42,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:42,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:42:42,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:42,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:42:42,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:42,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:42,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:42,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:42:42,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:42,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:42,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:42,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:42,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:42:42,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:42,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:42:42,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:42,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:42:42,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:42,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:42,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:42,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:42,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:42,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:42,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:42,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:42,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:42:42,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:42,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:42:42,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:42,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:42:42,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:42,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:42,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:42,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:42:42,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:42,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:42,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:42,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:42,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:42:42,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:42,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:42:42,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:42,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-28 16:42:42,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:42,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:42,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:42,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-28 16:42:42,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:42,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 16:42:42,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:42,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:42,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:42:42,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:42,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-28 16:42:42,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:42,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 16:42:42,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:42,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:42,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:42,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 16:42:42,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:42,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 16:42:42,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:42,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:42,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:42,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:42,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:42,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:42,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 16:42:42,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:42,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:42,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:42,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 16:42:42,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:42,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:42:42,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:42,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:42,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:42,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:42,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:42,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:42,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 16:42:42,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:42,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:42,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:42,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 16:42:42,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:42,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:42,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:42,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:42,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:42,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:42,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:42,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:42:42,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-28 16:42:42,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:42,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:42,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:42,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:42,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:42,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:42:42,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:42,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:42,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:42,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:42,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:42,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:42,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-28 16:42:42,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:42,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:42,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:42,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:42,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:42,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:42:42,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:42,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:42,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 16:42:42,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:42,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:42:42,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:42,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-28 16:42:42,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:42,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:42,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:42,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:42,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:42,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:42,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:42,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:42,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:42,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:42:42,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:42,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:43,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:42:43,002 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1038825667] [2020-10-28 16:42:43,002 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:42:43,003 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 16:42:43,003 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983914982] [2020-10-28 16:42:43,003 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 16:42:43,003 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:42:43,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 16:42:43,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-28 16:42:43,004 INFO L87 Difference]: Start difference. First operand 382 states and 463 transitions. Second operand 8 states. [2020-10-28 16:42:43,909 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:42:44,980 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-28 16:42:45,421 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-28 16:42:45,819 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-28 16:42:46,188 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-28 16:42:46,682 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-28 16:42:48,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:42:48,656 INFO L93 Difference]: Finished difference Result 1184 states and 1536 transitions. [2020-10-28 16:42:48,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 16:42:48,657 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 81 [2020-10-28 16:42:48,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:42:48,665 INFO L225 Difference]: With dead ends: 1184 [2020-10-28 16:42:48,666 INFO L226 Difference]: Without dead ends: 826 [2020-10-28 16:42:48,668 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-28 16:42:48,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2020-10-28 16:42:48,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 712. [2020-10-28 16:42:48,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 712 states. [2020-10-28 16:42:48,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 869 transitions. [2020-10-28 16:42:48,848 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 869 transitions. Word has length 81 [2020-10-28 16:42:48,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:42:48,848 INFO L481 AbstractCegarLoop]: Abstraction has 712 states and 869 transitions. [2020-10-28 16:42:48,848 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 16:42:48,848 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 869 transitions. [2020-10-28 16:42:48,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-28 16:42:48,851 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:42:48,851 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] [2020-10-28 16:42:48,851 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 16:42:48,851 INFO L429 AbstractCegarLoop]: === Iteration 8 === [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]=== [2020-10-28 16:42:48,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:42:48,852 INFO L82 PathProgramCache]: Analyzing trace with hash -504232794, now seen corresponding path program 1 times [2020-10-28 16:42:48,852 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:42:48,852 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1216722064] [2020-10-28 16:42:48,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:42:48,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:48,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:49,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:49,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-28 16:42:49,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:49,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 629 [2020-10-28 16:42:49,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:49,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:49,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-28 16:42:49,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:42:49,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-28 16:42:49,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:49,863 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:42:49,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:42:49,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:49,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:49,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:49,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:49,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:49,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-28 16:42:49,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:49,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:49,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:42:49,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:49,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 16:42:49,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:49,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:42:49,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:49,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:49,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:49,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:42:49,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:49,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:49,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:49,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:49,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:42:49,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:49,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:42:49,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:49,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:42:49,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:49,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:49,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:49,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:42:49,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:49,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:49,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:49,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:49,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:42:49,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:49,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:42:49,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:49,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:42:49,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:49,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:49,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:49,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:49,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:49,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:49,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:49,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:49,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:42:49,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:49,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:42:49,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:49,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:42:49,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:49,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:49,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:49,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:42:49,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:49,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:49,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:49,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:49,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:42:49,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:49,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:42:49,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:49,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-28 16:42:49,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:49,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:50,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:50,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:50,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:50,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:50,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:50,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:50,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:42:50,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:50,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:42:50,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:50,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-28 16:42:50,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:50,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:50,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:50,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-28 16:42:50,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:50,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 16:42:50,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:50,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:50,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:42:50,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-28 16:42:50,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 16:42:50,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:50,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 16:42:50,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:50,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:50,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:50,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 16:42:50,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:50,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 16:42:50,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:50,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:50,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:42:50,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:50,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-28 16:42:50,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:50,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 16:42:50,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:50,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:50,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:50,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 16:42:50,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:50,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 16:42:50,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:50,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:50,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:42:50,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:50,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 16:42:50,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:50,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 16:42:50,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:50,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:50,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:50,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 16:42:50,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:50,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:50,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:50,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:50,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:42:50,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:50,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 16:42:50,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:50,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-28 16:42:50,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:50,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:50,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:50,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:50,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:50,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:50,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:50,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:50,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:42:50,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:50,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:42:50,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:50,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-28 16:42:50,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:50,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:50,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:50,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:50,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:50,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:42:50,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:50,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:50,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:50,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:42:50,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:50,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:50,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-28 16:42:50,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:50,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:50,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:50,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:50,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:50,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:50,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:50,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:50,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:50,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:42:50,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:50,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:50,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:42:50,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1216722064] [2020-10-28 16:42:50,134 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:42:50,134 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-28 16:42:50,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112039816] [2020-10-28 16:42:50,135 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 16:42:50,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:42:50,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 16:42:50,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-28 16:42:50,136 INFO L87 Difference]: Start difference. First operand 712 states and 869 transitions. Second operand 7 states. [2020-10-28 16:42:50,853 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:42:51,643 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:42:55,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:42:55,215 INFO L93 Difference]: Finished difference Result 2350 states and 3177 transitions. [2020-10-28 16:42:55,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-28 16:42:55,216 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 85 [2020-10-28 16:42:55,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:42:55,231 INFO L225 Difference]: With dead ends: 2350 [2020-10-28 16:42:55,231 INFO L226 Difference]: Without dead ends: 1662 [2020-10-28 16:42:55,236 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 33 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-10-28 16:42:55,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1662 states. [2020-10-28 16:42:55,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1662 to 1410. [2020-10-28 16:42:55,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1410 states. [2020-10-28 16:42:55,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1410 states to 1410 states and 1735 transitions. [2020-10-28 16:42:55,609 INFO L78 Accepts]: Start accepts. Automaton has 1410 states and 1735 transitions. Word has length 85 [2020-10-28 16:42:55,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:42:55,610 INFO L481 AbstractCegarLoop]: Abstraction has 1410 states and 1735 transitions. [2020-10-28 16:42:55,610 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 16:42:55,610 INFO L276 IsEmpty]: Start isEmpty. Operand 1410 states and 1735 transitions. [2020-10-28 16:42:55,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-28 16:42:55,613 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:42:55,613 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] [2020-10-28 16:42:55,614 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 16:42:55,614 INFO L429 AbstractCegarLoop]: === Iteration 9 === [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]=== [2020-10-28 16:42:55,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:42:55,614 INFO L82 PathProgramCache]: Analyzing trace with hash 996436684, now seen corresponding path program 1 times [2020-10-28 16:42:55,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:42:55,615 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2048080059] [2020-10-28 16:42:55,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:42:55,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-28 16:42:55,653 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-28 16:42:55,653 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-28 16:42:55,658 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 16:42:55,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 04:42:55 BoogieIcfgContainer [2020-10-28 16:42:55,684 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 16:42:55,685 INFO L168 Benchmark]: Toolchain (without parser) took 62658.25 ms. Allocated memory was 151.0 MB in the beginning and 725.6 MB in the end (delta: 574.6 MB). Free memory was 125.5 MB in the beginning and 651.1 MB in the end (delta: -525.6 MB). Peak memory consumption was 50.1 MB. Max. memory is 8.0 GB. [2020-10-28 16:42:55,686 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory is still 123.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 16:42:55,687 INFO L168 Benchmark]: CACSL2BoogieTranslator took 685.95 ms. Allocated memory is still 151.0 MB. Free memory was 124.9 MB in the beginning and 103.2 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-28 16:42:55,687 INFO L168 Benchmark]: Boogie Preprocessor took 153.22 ms. Allocated memory is still 151.0 MB. Free memory was 103.0 MB in the beginning and 132.4 MB in the end (delta: -29.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 8.0 GB. [2020-10-28 16:42:55,688 INFO L168 Benchmark]: RCFGBuilder took 1466.36 ms. Allocated memory is still 151.0 MB. Free memory was 132.4 MB in the beginning and 125.2 MB in the end (delta: 7.2 MB). Peak memory consumption was 88.0 MB. Max. memory is 8.0 GB. [2020-10-28 16:42:55,689 INFO L168 Benchmark]: TraceAbstraction took 60337.98 ms. Allocated memory was 151.0 MB in the beginning and 725.6 MB in the end (delta: 574.6 MB). Free memory was 124.6 MB in the beginning and 651.1 MB in the end (delta: -526.5 MB). Peak memory consumption was 48.1 MB. Max. memory is 8.0 GB. [2020-10-28 16:42:55,692 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory is still 123.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 685.95 ms. Allocated memory is still 151.0 MB. Free memory was 124.9 MB in the beginning and 103.2 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 153.22 ms. Allocated memory is still 151.0 MB. Free memory was 103.0 MB in the beginning and 132.4 MB in the end (delta: -29.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1466.36 ms. Allocated memory is still 151.0 MB. Free memory was 132.4 MB in the beginning and 125.2 MB in the end (delta: 7.2 MB). Peak memory consumption was 88.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 60337.98 ms. Allocated memory was 151.0 MB in the beginning and 725.6 MB in the end (delta: 574.6 MB). Free memory was 124.6 MB in the beginning and 651.1 MB in the end (delta: -526.5 MB). Peak memory consumption was 48.1 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: [L50] int waterLevel = 1; [L51] int methaneLevelCritical = 0; [L160] int pumpRunning = 0; [L161] int systemActive = 1; [L460] int cleanupTimeShifts = 4; [L754] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L536] int retValue_acc ; [L537] int tmp ; [L541] FCALL select_helpers() [L542] FCALL select_features() [L543] CALL, EXPR valid_product() [L977] int retValue_acc ; [L980] retValue_acc = 1 [L981] return (retValue_acc); [L543] RET, EXPR valid_product() [L543] tmp = valid_product() [L545] COND TRUE \read(tmp) [L547] FCALL setup() [L548] CALL runTest() [L527] CALL test() [L392] int splverifierCounter ; [L393] int tmp ; [L394] int tmp___0 ; [L395] int tmp___1 ; [L396] int tmp___2 ; [L399] splverifierCounter = 0 [L401] COND TRUE 1 [L403] COND TRUE splverifierCounter < 4 [L409] tmp = __VERIFIER_nondet_int() [L411] COND TRUE \read(tmp) [L413] CALL waterRise() [L68] COND TRUE waterLevel < 2 [L69] waterLevel = waterLevel + 1 [L413] RET waterRise() [L419] tmp___0 = __VERIFIER_nondet_int() [L421] COND TRUE \read(tmp___0) [L423] CALL changeMethaneLevel() [L80] COND FALSE !(\read(methaneLevelCritical)) [L83] methaneLevelCritical = 1 [L423] RET changeMethaneLevel() [L429] tmp___2 = __VERIFIER_nondet_int() [L431] COND FALSE !(\read(tmp___2)) [L437] tmp___1 = __VERIFIER_nondet_int() [L439] COND FALSE !(\read(tmp___1)) [L448] CALL timeShift() [L168] COND FALSE !(\read(pumpRunning)) [L175] COND TRUE \read(systemActive) [L177] CALL processEnvironment() [L223] int tmp ; [L226] COND FALSE !(\read(pumpRunning)) [L241] CALL processEnvironment__wrappee__highWaterSensor() [L197] int tmp ; [L200] COND TRUE ! pumpRunning [L202] CALL, EXPR isHighWaterLevel() [L320] int retValue_acc ; [L321] int tmp ; [L322] int tmp___0 ; [L326] CALL, EXPR isHighWaterSensorDry() [L130] int retValue_acc ; [L133] COND FALSE !(waterLevel < 2) [L137] retValue_acc = 0 [L138] return (retValue_acc); [L326] RET, EXPR isHighWaterSensorDry() [L326] tmp = isHighWaterSensorDry() [L328] COND FALSE !(\read(tmp)) [L331] tmp___0 = 1 [L333] retValue_acc = tmp___0 [L334] return (retValue_acc); [L202] RET, EXPR isHighWaterLevel() [L202] tmp = isHighWaterLevel() [L204] COND TRUE \read(tmp) [L206] CALL activatePump() [L251] pumpRunning = 1 [L206] RET activatePump() [L241] RET processEnvironment__wrappee__highWaterSensor() [L177] RET processEnvironment() [L183] CALL __utac_acc__Specification1_spec__1() [L560] int tmp ; [L561] int tmp___0 ; [L565] CALL, EXPR isMethaneLevelCritical() [L89] int retValue_acc ; [L92] retValue_acc = methaneLevelCritical [L93] return (retValue_acc); [L565] RET, EXPR isMethaneLevelCritical() [L565] tmp = isMethaneLevelCritical() [L567] COND TRUE \read(tmp) [L569] CALL, EXPR isPumpRunning() [L275] int retValue_acc ; [L278] retValue_acc = pumpRunning [L279] return (retValue_acc); [L569] RET, EXPR isPumpRunning() [L569] tmp___0 = isPumpRunning() [L571] COND TRUE \read(tmp___0) [L573] CALL __automaton_fail() [L385] CALL reach_error() [L3] __assert_fail("0", "minepump_spec1_product52.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 43 procedures, 257 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 60.2s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 28.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1050 SDtfs, 1606 SDslu, 919 SDs, 0 SdLazy, 4040 SolverSat, 993 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 245 GetRequests, 176 SyntacticMatches, 4 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 12.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1410occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 659 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 29.6s InterpolantComputationTime, 623 NumberOfCodeBlocks, 623 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 526 ConstructedInterpolants, 0 QuantifiedInterpolants, 168230 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...