/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=SHALLOWEST --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_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 03:22:14,195 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 03:22:14,198 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 03:22:14,250 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 03:22:14,251 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 03:22:14,257 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 03:22:14,259 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 03:22:14,265 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 03:22:14,268 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 03:22:14,274 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 03:22:14,276 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 03:22:14,277 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 03:22:14,277 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 03:22:14,280 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 03:22:14,284 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 03:22:14,286 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 03:22:14,287 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 03:22:14,290 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 03:22:14,307 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 03:22:14,316 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 03:22:14,318 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 03:22:14,319 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 03:22:14,321 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 03:22:14,323 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 03:22:14,332 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 03:22:14,332 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 03:22:14,333 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 03:22:14,335 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 03:22:14,336 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 03:22:14,337 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 03:22:14,337 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 03:22:14,338 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 03:22:14,341 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 03:22:14,341 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 03:22:14,343 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 03:22:14,343 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 03:22:14,344 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 03:22:14,344 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 03:22:14,344 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 03:22:14,345 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 03:22:14,346 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 03:22:14,354 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-27 03:22:14,406 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 03:22:14,407 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 03:22:14,411 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 03:22:14,411 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 03:22:14,411 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 03:22:14,412 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 03:22:14,412 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 03:22:14,412 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 03:22:14,413 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 03:22:14,413 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 03:22:14,414 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 03:22:14,415 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 03:22:14,415 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 03:22:14,415 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 03:22:14,416 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 03:22:14,416 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 03:22:14,416 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 03:22:14,416 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 03:22:14,417 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 03:22:14,417 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 03:22:14,417 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 03:22:14,417 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 03:22:14,418 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 03:22:14,418 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 03:22:14,418 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 03:22:14,419 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 03:22:14,419 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 03:22:14,419 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 03:22:14,419 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 03:22:14,420 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 03:22:14,832 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 03:22:14,865 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 03:22:14,868 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 03:22:14,870 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 03:22:14,871 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 03:22:14,872 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product35.cil.c [2020-10-27 03:22:14,953 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/08eb8641e/2ec1da38f9ab4c5f8fe1b0365f6db122/FLAGd5b4eecb9 [2020-10-27 03:22:15,550 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 03:22:15,552 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product35.cil.c [2020-10-27 03:22:15,570 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/08eb8641e/2ec1da38f9ab4c5f8fe1b0365f6db122/FLAGd5b4eecb9 [2020-10-27 03:22:15,855 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/08eb8641e/2ec1da38f9ab4c5f8fe1b0365f6db122 [2020-10-27 03:22:15,858 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 03:22:15,864 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 03:22:15,867 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 03:22:15,867 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 03:22:15,872 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 03:22:15,873 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:22:15" (1/1) ... [2020-10-27 03:22:15,883 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49acb9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:22:15, skipping insertion in model container [2020-10-27 03:22:15,883 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:22:15" (1/1) ... [2020-10-27 03:22:15,892 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 03:22:15,941 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 03:22:16,309 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 03:22:16,321 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 03:22:16,411 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 03:22:16,473 INFO L208 MainTranslator]: Completed translation [2020-10-27 03:22:16,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:22:16 WrapperNode [2020-10-27 03:22:16,476 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 03:22:16,478 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 03:22:16,478 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 03:22:16,478 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 03:22:16,496 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:22:16" (1/1) ... [2020-10-27 03:22:16,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:22:16" (1/1) ... [2020-10-27 03:22:16,550 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:22:16" (1/1) ... [2020-10-27 03:22:16,550 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:22:16" (1/1) ... [2020-10-27 03:22:16,603 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:22:16" (1/1) ... [2020-10-27 03:22:16,613 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:22:16" (1/1) ... [2020-10-27 03:22:16,618 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:22:16" (1/1) ... [2020-10-27 03:22:16,626 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 03:22:16,627 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 03:22:16,627 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 03:22:16,627 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 03:22:16,628 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:22:16" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 03:22:16,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 03:22:16,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 03:22:16,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-27 03:22:16,722 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 03:22:16,722 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-27 03:22:16,722 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-27 03:22:16,723 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-27 03:22:16,723 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-27 03:22:16,723 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-27 03:22:16,723 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-27 03:22:16,723 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-27 03:22:16,724 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-27 03:22:16,724 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-10-27 03:22:16,724 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-27 03:22:16,724 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-27 03:22:16,725 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-27 03:22:16,725 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-27 03:22:16,725 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-27 03:22:16,725 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-27 03:22:16,725 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-27 03:22:16,726 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-27 03:22:16,726 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-27 03:22:16,726 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-27 03:22:16,726 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-27 03:22:16,726 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-27 03:22:16,727 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-27 03:22:16,727 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-27 03:22:16,727 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-27 03:22:16,727 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-27 03:22:16,728 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-27 03:22:16,728 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-27 03:22:16,728 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-27 03:22:16,728 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 03:22:16,728 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-27 03:22:16,728 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-27 03:22:16,729 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-27 03:22:16,729 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-27 03:22:16,729 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-27 03:22:16,729 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-27 03:22:16,730 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 03:22:16,730 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 03:22:16,730 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 03:22:16,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 03:22:16,730 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 03:22:16,731 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-27 03:22:16,731 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-27 03:22:16,731 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-27 03:22:16,731 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-27 03:22:16,732 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-27 03:22:16,732 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-27 03:22:16,732 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-27 03:22:16,732 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-27 03:22:16,732 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-27 03:22:16,733 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-27 03:22:16,733 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-10-27 03:22:16,733 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-27 03:22:16,733 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-27 03:22:16,734 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-27 03:22:16,734 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-27 03:22:16,734 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-27 03:22:16,734 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-27 03:22:16,734 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-27 03:22:16,735 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-27 03:22:16,735 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-27 03:22:16,762 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-27 03:22:16,762 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-27 03:22:16,763 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-27 03:22:16,763 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-27 03:22:16,763 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-27 03:22:16,763 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-27 03:22:16,763 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-27 03:22:16,764 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-27 03:22:16,764 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-27 03:22:16,765 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 03:22:16,766 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-27 03:22:16,766 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-27 03:22:16,766 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-27 03:22:16,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-27 03:22:16,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-27 03:22:16,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 03:22:16,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-27 03:22:16,772 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-27 03:22:16,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 03:22:16,773 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-27 03:22:16,773 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-27 03:22:16,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 03:22:16,773 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-27 03:22:16,774 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-27 03:22:16,774 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-27 03:22:16,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 03:22:16,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 03:22:16,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 03:22:18,445 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 03:22:18,446 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-27 03:22:18,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:22:18 BoogieIcfgContainer [2020-10-27 03:22:18,451 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 03:22:18,455 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 03:22:18,455 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 03:22:18,459 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 03:22:18,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 03:22:15" (1/3) ... [2020-10-27 03:22:18,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@148b7668 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:22:18, skipping insertion in model container [2020-10-27 03:22:18,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:22:16" (2/3) ... [2020-10-27 03:22:18,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@148b7668 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:22:18, skipping insertion in model container [2020-10-27 03:22:18,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:22:18" (3/3) ... [2020-10-27 03:22:18,464 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product35.cil.c [2020-10-27 03:22:18,480 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 03:22:18,486 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-27 03:22:18,502 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-27 03:22:18,555 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 03:22:18,556 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 03:22:18,556 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 03:22:18,556 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 03:22:18,556 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 03:22:18,556 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 03:22:18,557 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 03:22:18,557 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 03:22:18,581 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states. [2020-10-27 03:22:18,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-27 03:22:18,591 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:22:18,593 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] [2020-10-27 03:22:18,593 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:22:18,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:22:18,600 INFO L82 PathProgramCache]: Analyzing trace with hash -855805664, now seen corresponding path program 1 times [2020-10-27 03:22:18,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:22:18,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [472342180] [2020-10-27 03:22:18,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:22:18,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:19,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:19,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:19,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:21,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:21,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:23,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:23,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-27 03:22:23,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 03:22:23,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-27 03:22:23,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:23,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 03:22:23,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:22:23,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-27 03:22:23,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-27 03:22:24,919 WARN L193 SmtUtils]: Spent 713.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 03:22:24,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:22:24,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:24,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:25,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:25,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:22:25,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:25,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-27 03:22:25,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:25,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:22:25,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:25,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 03:22:25,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 03:22:25,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 03:22:25,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:25,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:25,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:25,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:22:25,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:25,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 03:22:25,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:25,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:22:25,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:25,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:22:25,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:25,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 03:22:25,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:25,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:25,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:25,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:22:25,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:25,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:22:25,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:25,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:22:25,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:25,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:22:25,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:25,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 03:22:25,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:25,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:25,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:25,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:22:25,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:25,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 03:22:25,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:25,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:22:25,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:25,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:22:25,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:25,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 03:22:25,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:25,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:25,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:25,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:22:25,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:25,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:22:25,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:25,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:22:25,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:25,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:22:25,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:25,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 03:22:25,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:25,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:25,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:25,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:22:25,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:25,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 03:22:25,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:25,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:22:25,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:25,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:22:25,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 03:22:25,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 03:22:25,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:25,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:25,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:25,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:22:25,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:25,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 03:22:25,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:25,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 03:22:25,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:25,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:22:25,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 03:22:25,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 03:22:25,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [472342180] [2020-10-27 03:22:25,279 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:22:25,280 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 03:22:25,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858277601] [2020-10-27 03:22:25,289 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 03:22:25,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:22:25,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 03:22:25,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-27 03:22:25,316 INFO L87 Difference]: Start difference. First operand 164 states. Second operand 7 states. [2020-10-27 03:22:26,579 WARN L193 SmtUtils]: Spent 707.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:22:28,488 WARN L193 SmtUtils]: Spent 645.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-27 03:22:29,021 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:22:29,459 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-27 03:22:30,333 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 03:22:30,824 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 03:22:32,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:22:32,118 INFO L93 Difference]: Finished difference Result 358 states and 498 transitions. [2020-10-27 03:22:32,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 03:22:32,120 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 47 [2020-10-27 03:22:32,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:22:32,137 INFO L225 Difference]: With dead ends: 358 [2020-10-27 03:22:32,137 INFO L226 Difference]: Without dead ends: 218 [2020-10-27 03:22:32,143 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-10-27 03:22:32,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-10-27 03:22:32,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 183. [2020-10-27 03:22:32,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2020-10-27 03:22:32,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 231 transitions. [2020-10-27 03:22:32,274 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 231 transitions. Word has length 47 [2020-10-27 03:22:32,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:22:32,275 INFO L481 AbstractCegarLoop]: Abstraction has 183 states and 231 transitions. [2020-10-27 03:22:32,275 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 03:22:32,275 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 231 transitions. [2020-10-27 03:22:32,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-27 03:22:32,280 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:22:32,281 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:22:32,281 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 03:22:32,281 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:22:32,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:22:32,282 INFO L82 PathProgramCache]: Analyzing trace with hash 2147229723, now seen corresponding path program 1 times [2020-10-27 03:22:32,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:22:32,282 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [389178239] [2020-10-27 03:22:32,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:22:32,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:32,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:32,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:32,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:32,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:34,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:34,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:37,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:37,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-27 03:22:37,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 03:22:37,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-27 03:22:37,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:37,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 03:22:37,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:22:37,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-27 03:22:37,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:37,688 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 03:22:37,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:22:37,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:37,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:37,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:37,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:22:37,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:37,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-27 03:22:37,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:37,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:22:37,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:37,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 03:22:37,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:37,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 03:22:37,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:37,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:37,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:37,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:22:37,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:37,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:22:37,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:37,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:22:37,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:37,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:22:37,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:37,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 03:22:37,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:37,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:37,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:37,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:22:37,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:37,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:22:37,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:37,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:22:37,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:37,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:22:37,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:37,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 03:22:37,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:37,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:37,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:37,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:22:37,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:37,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 03:22:37,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:37,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:22:37,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:37,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:22:37,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:37,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 03:22:37,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:37,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:37,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:37,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:22:37,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:37,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:22:37,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:37,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:22:37,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:37,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:22:37,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:37,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 03:22:37,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:37,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:37,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:37,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 03:22:37,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:37,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 03:22:37,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:37,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:22:37,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 03:22:37,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 03:22:37,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:37,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:22:37,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:37,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:37,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:37,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 03:22:37,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:37,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 03:22:37,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:37,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:22:37,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:37,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 03:22:37,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:37,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 03:22:37,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:37,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:37,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:37,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:22:37,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:37,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:22:37,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:37,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:22:37,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:37,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:22:37,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:37,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 03:22:37,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:37,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:37,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:37,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:37,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 03:22:37,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:22:37,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-27 03:22:37,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:37,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 03:22:37,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-27 03:22:37,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 03:22:37,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:38,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:22:38,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:38,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:38,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:38,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 03:22:38,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:38,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 03:22:38,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:38,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 03:22:38,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:38,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 03:22:38,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:38,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 03:22:38,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:38,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:38,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:38,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 03:22:38,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:38,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:22:38,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:38,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:22:38,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:38,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:22:38,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 03:22:38,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 03:22:38,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:38,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:38,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:38,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:22:38,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:38,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:22:38,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:38,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:22:38,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:22:38,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:22:38,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 03:22:38,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 03:22:38,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:38,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:38,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:38,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:22:38,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:38,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:22:38,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:38,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:22:38,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:22:38,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:22:38,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 03:22:38,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-27 03:22:38,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:38,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:38,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:38,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:22:38,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:38,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:22:38,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:38,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:22:38,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:22:38,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:22:38,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 03:22:38,179 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-27 03:22:38,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [389178239] [2020-10-27 03:22:38,180 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:22:38,180 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 03:22:38,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52561217] [2020-10-27 03:22:38,183 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 03:22:38,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:22:38,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 03:22:38,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-27 03:22:38,186 INFO L87 Difference]: Start difference. First operand 183 states and 231 transitions. Second operand 11 states. [2020-10-27 03:22:39,059 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:22:40,155 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:22:40,694 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-27 03:22:41,132 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-27 03:22:41,562 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-27 03:22:42,015 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-27 03:22:42,702 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:22:43,190 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 03:22:43,693 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-27 03:22:44,135 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:22:46,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:22:46,318 INFO L93 Difference]: Finished difference Result 643 states and 929 transitions. [2020-10-27 03:22:46,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-27 03:22:46,319 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 90 [2020-10-27 03:22:46,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:22:46,327 INFO L225 Difference]: With dead ends: 643 [2020-10-27 03:22:46,327 INFO L226 Difference]: Without dead ends: 484 [2020-10-27 03:22:46,331 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2020-10-27 03:22:46,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2020-10-27 03:22:46,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 340. [2020-10-27 03:22:46,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2020-10-27 03:22:46,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 432 transitions. [2020-10-27 03:22:46,474 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 432 transitions. Word has length 90 [2020-10-27 03:22:46,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:22:46,475 INFO L481 AbstractCegarLoop]: Abstraction has 340 states and 432 transitions. [2020-10-27 03:22:46,475 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 03:22:46,475 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 432 transitions. [2020-10-27 03:22:46,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-10-27 03:22:46,491 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:22:46,491 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] [2020-10-27 03:22:46,491 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 03:22:46,492 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:22:46,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:22:46,492 INFO L82 PathProgramCache]: Analyzing trace with hash 1656199275, now seen corresponding path program 1 times [2020-10-27 03:22:46,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:22:46,493 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1620871699] [2020-10-27 03:22:46,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:22:46,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:46,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:46,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:49,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:49,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-27 03:22:49,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:22:49,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2995 [2020-10-27 03:22:49,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:49,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 03:22:49,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:22:49,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-27 03:22:49,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:49,979 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 03:22:49,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:22:49,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:50,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:50,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:50,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:22:50,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:50,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-27 03:22:50,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:50,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:22:50,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:50,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 03:22:50,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:50,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 03:22:50,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:50,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:50,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:50,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:22:50,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:50,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:22:50,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:50,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:22:50,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:50,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:22:50,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:50,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 03:22:50,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:50,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:50,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:50,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:22:50,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:50,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:22:50,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:50,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:22:50,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:50,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:22:50,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:50,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 03:22:50,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:50,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:50,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:50,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:22:50,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:50,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:22:50,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:50,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:22:50,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:50,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:22:50,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:50,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 03:22:50,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:50,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:50,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:50,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:22:50,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:50,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:22:50,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:50,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:22:50,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:50,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:22:50,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:50,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 03:22:50,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:50,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:50,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:50,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:50,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 03:22:50,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:22:50,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-27 03:22:50,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:50,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:22:50,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:50,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-27 03:22:50,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:50,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:22:50,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:50,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:50,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:50,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:50,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 03:22:50,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:22:50,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 03:22:50,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:50,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:22:50,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:50,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:22:50,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:50,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 03:22:50,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:50,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:50,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:50,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 03:22:50,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:50,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:22:50,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:50,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:22:50,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:50,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:22:50,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 03:22:50,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 03:22:50,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:50,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:50,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:50,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:22:50,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:50,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:22:50,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:50,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:22:50,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:50,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:22:50,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:50,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 03:22:50,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:50,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:50,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:50,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:22:50,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:50,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:22:50,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:50,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 03:22:50,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:50,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:22:50,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:50,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 03:22:50,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:50,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:50,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:50,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:22:50,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:50,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:22:50,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:50,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:22:50,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:22:50,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:22:50,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:50,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 03:22:50,280 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1620871699] [2020-10-27 03:22:50,280 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:22:50,280 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-27 03:22:50,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548202348] [2020-10-27 03:22:50,281 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 03:22:50,281 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:22:50,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 03:22:50,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-27 03:22:50,282 INFO L87 Difference]: Start difference. First operand 340 states and 432 transitions. Second operand 8 states. [2020-10-27 03:22:50,987 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:22:52,123 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:22:52,600 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:22:53,024 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:22:53,421 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:22:53,949 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 03:22:55,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:22:55,667 INFO L93 Difference]: Finished difference Result 1140 states and 1631 transitions. [2020-10-27 03:22:55,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 03:22:55,668 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 75 [2020-10-27 03:22:55,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:22:55,686 INFO L225 Difference]: With dead ends: 1140 [2020-10-27 03:22:55,686 INFO L226 Difference]: Without dead ends: 739 [2020-10-27 03:22:55,691 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-27 03:22:55,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2020-10-27 03:22:55,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 592. [2020-10-27 03:22:55,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 592 states. [2020-10-27 03:22:55,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 743 transitions. [2020-10-27 03:22:55,909 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 743 transitions. Word has length 75 [2020-10-27 03:22:55,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:22:55,910 INFO L481 AbstractCegarLoop]: Abstraction has 592 states and 743 transitions. [2020-10-27 03:22:55,910 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 03:22:55,910 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 743 transitions. [2020-10-27 03:22:55,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-27 03:22:55,913 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:22:55,913 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] [2020-10-27 03:22:55,913 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 03:22:55,913 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:22:55,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:22:55,914 INFO L82 PathProgramCache]: Analyzing trace with hash 259342959, now seen corresponding path program 1 times [2020-10-27 03:22:55,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:22:55,914 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1884384561] [2020-10-27 03:22:55,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:22:55,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:55,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:56,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:56,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-27 03:22:56,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:56,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 284 [2020-10-27 03:22:56,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:56,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 03:22:56,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-27 03:22:56,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:22:56,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:56,565 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 03:22:56,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:22:56,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:56,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:56,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:56,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:22:56,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:56,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-27 03:22:56,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:56,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:22:56,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:56,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:22:56,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:56,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 03:22:56,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:56,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:56,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:56,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:22:56,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:56,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:22:56,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:56,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:22:56,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:56,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:22:56,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:56,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 03:22:56,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:56,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:56,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:56,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:22:56,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:56,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 03:22:56,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:56,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:22:56,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:56,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:22:56,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:56,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 03:22:56,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:56,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:56,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:56,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:22:56,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:56,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:22:56,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:56,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:22:56,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:56,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:22:56,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:56,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 03:22:56,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:56,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:56,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:56,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:22:56,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:56,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 03:22:56,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:56,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:22:56,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:56,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:22:56,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:56,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 03:22:56,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:56,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:56,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:56,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:22:56,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:56,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:22:56,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:56,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:22:56,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:56,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:22:56,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:56,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-27 03:22:56,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:56,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:56,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:56,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 03:22:56,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:56,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 03:22:56,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:56,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 03:22:56,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 03:22:56,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:22:56,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:56,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:22:56,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:56,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:56,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:56,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 03:22:56,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:56,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 03:22:56,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:56,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 03:22:56,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 03:22:56,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:22:56,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:56,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 03:22:56,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:56,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:56,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:56,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 03:22:56,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:56,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 03:22:56,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:56,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 03:22:56,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:56,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:22:56,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:56,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 03:22:56,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:56,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:56,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:56,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:22:56,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:56,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:22:56,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:56,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:22:56,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:22:56,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:22:56,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 03:22:56,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 03:22:56,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:56,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:56,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:56,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:22:56,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:56,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:22:56,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:56,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:22:56,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:22:56,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:22:56,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:56,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-27 03:22:56,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:56,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:56,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:56,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:22:56,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:56,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:22:56,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:56,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:22:56,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:22:56,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:22:56,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:56,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 03:22:56,755 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1884384561] [2020-10-27 03:22:56,755 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:22:56,755 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-27 03:22:56,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641651614] [2020-10-27 03:22:56,757 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 03:22:56,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:22:56,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 03:22:56,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-27 03:22:56,758 INFO L87 Difference]: Start difference. First operand 592 states and 743 transitions. Second operand 8 states. [2020-10-27 03:22:58,010 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 03:22:58,416 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 03:22:58,830 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 03:23:00,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:23:00,033 INFO L93 Difference]: Finished difference Result 1402 states and 1972 transitions. [2020-10-27 03:23:00,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-27 03:23:00,034 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 79 [2020-10-27 03:23:00,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:23:00,044 INFO L225 Difference]: With dead ends: 1402 [2020-10-27 03:23:00,044 INFO L226 Difference]: Without dead ends: 834 [2020-10-27 03:23:00,048 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-27 03:23:00,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2020-10-27 03:23:00,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 608. [2020-10-27 03:23:00,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 608 states. [2020-10-27 03:23:00,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 759 transitions. [2020-10-27 03:23:00,235 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 759 transitions. Word has length 79 [2020-10-27 03:23:00,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:23:00,235 INFO L481 AbstractCegarLoop]: Abstraction has 608 states and 759 transitions. [2020-10-27 03:23:00,235 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 03:23:00,236 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 759 transitions. [2020-10-27 03:23:00,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-27 03:23:00,240 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:23:00,240 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] [2020-10-27 03:23:00,240 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 03:23:00,241 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:23:00,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:23:00,241 INFO L82 PathProgramCache]: Analyzing trace with hash -1924333968, now seen corresponding path program 1 times [2020-10-27 03:23:00,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:23:00,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1650616884] [2020-10-27 03:23:00,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:23:00,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:00,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:00,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:00,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-27 03:23:00,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:00,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 585 [2020-10-27 03:23:00,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:00,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 03:23:00,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:23:00,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-27 03:23:00,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:01,275 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 03:23:01,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:23:01,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:01,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:01,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:01,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:23:01,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:01,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-27 03:23:01,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:01,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:01,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:01,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 03:23:01,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:01,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 03:23:01,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:01,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:01,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:01,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:23:01,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:01,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:23:01,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:01,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:01,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:01,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:23:01,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:01,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 03:23:01,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:01,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:01,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:01,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:23:01,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:01,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:23:01,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:01,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:01,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:01,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:23:01,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:01,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 03:23:01,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:01,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:01,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:01,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:23:01,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:01,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:23:01,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:01,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:01,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:01,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:23:01,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:01,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 03:23:01,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:01,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:01,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:01,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:23:01,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:01,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:23:01,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:01,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:01,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:01,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:23:01,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:01,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 03:23:01,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:01,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:01,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:01,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:23:01,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:01,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:23:01,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:01,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:01,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:01,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:23:01,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:01,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-27 03:23:01,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:01,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:01,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:01,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 03:23:01,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:01,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 03:23:01,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:01,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:01,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 03:23:01,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-27 03:23:01,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:01,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:23:01,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:01,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:01,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:01,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 03:23:01,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:01,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 03:23:01,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:01,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:01,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:01,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 03:23:01,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:01,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 03:23:01,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:01,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:01,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:01,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 03:23:01,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:01,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:23:01,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:01,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:01,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:01,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-27 03:23:01,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:01,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 03:23:01,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:01,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:01,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:01,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:23:01,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:01,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:23:01,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:01,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:01,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:01,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:23:01,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:01,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 03:23:01,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:01,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:01,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:01,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:23:01,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:01,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:23:01,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:01,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:23:01,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:23:01,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:23:01,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:01,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-27 03:23:01,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:01,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:01,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:01,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:23:01,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:01,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:23:01,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:01,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:23:01,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:23:01,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:23:01,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:01,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 03:23:01,586 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1650616884] [2020-10-27 03:23:01,586 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:23:01,586 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 03:23:01,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867186295] [2020-10-27 03:23:01,587 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 03:23:01,587 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:23:01,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 03:23:01,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-27 03:23:01,589 INFO L87 Difference]: Start difference. First operand 608 states and 759 transitions. Second operand 7 states. [2020-10-27 03:23:02,306 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:23:03,009 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:23:06,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:23:06,456 INFO L93 Difference]: Finished difference Result 2153 states and 3029 transitions. [2020-10-27 03:23:06,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-27 03:23:06,456 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 79 [2020-10-27 03:23:06,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:23:06,471 INFO L225 Difference]: With dead ends: 2153 [2020-10-27 03:23:06,472 INFO L226 Difference]: Without dead ends: 1551 [2020-10-27 03:23:06,475 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-10-27 03:23:06,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1551 states. [2020-10-27 03:23:06,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1551 to 1278. [2020-10-27 03:23:06,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1278 states. [2020-10-27 03:23:06,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1278 states to 1278 states and 1633 transitions. [2020-10-27 03:23:06,773 INFO L78 Accepts]: Start accepts. Automaton has 1278 states and 1633 transitions. Word has length 79 [2020-10-27 03:23:06,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:23:06,773 INFO L481 AbstractCegarLoop]: Abstraction has 1278 states and 1633 transitions. [2020-10-27 03:23:06,773 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 03:23:06,774 INFO L276 IsEmpty]: Start isEmpty. Operand 1278 states and 1633 transitions. [2020-10-27 03:23:06,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-27 03:23:06,776 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:23:06,777 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] [2020-10-27 03:23:06,777 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 03:23:06,777 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]=== [2020-10-27 03:23:06,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:23:06,778 INFO L82 PathProgramCache]: Analyzing trace with hash -1377613802, now seen corresponding path program 1 times [2020-10-27 03:23:06,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:23:06,778 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1586061216] [2020-10-27 03:23:06,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:23:06,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 03:23:06,819 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 03:23:06,819 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 03:23:06,823 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 03:23:06,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 03:23:06 BoogieIcfgContainer [2020-10-27 03:23:06,850 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 03:23:06,852 INFO L168 Benchmark]: Toolchain (without parser) took 50991.39 ms. Allocated memory was 151.0 MB in the beginning and 626.0 MB in the end (delta: 475.0 MB). Free memory was 125.1 MB in the beginning and 424.9 MB in the end (delta: -299.8 MB). Peak memory consumption was 176.3 MB. Max. memory is 8.0 GB. [2020-10-27 03:23:06,852 INFO L168 Benchmark]: CDTParser took 0.55 ms. Allocated memory is still 151.0 MB. Free memory is still 122.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 03:23:06,853 INFO L168 Benchmark]: CACSL2BoogieTranslator took 609.67 ms. Allocated memory is still 151.0 MB. Free memory was 124.5 MB in the beginning and 103.4 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-27 03:23:06,854 INFO L168 Benchmark]: Boogie Preprocessor took 148.20 ms. Allocated memory is still 151.0 MB. Free memory was 103.4 MB in the beginning and 99.6 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-27 03:23:06,855 INFO L168 Benchmark]: RCFGBuilder took 1824.40 ms. Allocated memory is still 151.0 MB. Free memory was 99.5 MB in the beginning and 51.6 MB in the end (delta: 47.9 MB). Peak memory consumption was 47.4 MB. Max. memory is 8.0 GB. [2020-10-27 03:23:06,855 INFO L168 Benchmark]: TraceAbstraction took 48395.00 ms. Allocated memory was 151.0 MB in the beginning and 626.0 MB in the end (delta: 475.0 MB). Free memory was 51.1 MB in the beginning and 424.9 MB in the end (delta: -373.8 MB). Peak memory consumption was 102.7 MB. Max. memory is 8.0 GB. [2020-10-27 03:23:06,859 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.55 ms. Allocated memory is still 151.0 MB. Free memory is still 122.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 609.67 ms. Allocated memory is still 151.0 MB. Free memory was 124.5 MB in the beginning and 103.4 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 148.20 ms. Allocated memory is still 151.0 MB. Free memory was 103.4 MB in the beginning and 99.6 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1824.40 ms. Allocated memory is still 151.0 MB. Free memory was 99.5 MB in the beginning and 51.6 MB in the end (delta: 47.9 MB). Peak memory consumption was 47.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 48395.00 ms. Allocated memory was 151.0 MB in the beginning and 626.0 MB in the end (delta: 475.0 MB). Free memory was 51.1 MB in the beginning and 424.9 MB in the end (delta: -373.8 MB). Peak memory consumption was 102.7 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: [L49] int waterLevel = 1; [L50] int methaneLevelCritical = 0; [L252] int pumpRunning = 0; [L253] int systemActive = 1; [L457] int cleanupTimeShifts = 4; [L722] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L530] int retValue_acc ; [L531] int tmp ; [L535] FCALL select_helpers() [L536] FCALL select_features() [L537] CALL, EXPR valid_product() [L448] int retValue_acc ; [L451] retValue_acc = 1 [L452] return (retValue_acc); [L537] RET, EXPR valid_product() [L537] tmp = valid_product() [L539] COND TRUE \read(tmp) [L541] FCALL setup() [L542] CALL runTest() [L524] CALL test() [L183] int splverifierCounter ; [L184] int tmp ; [L185] int tmp___0 ; [L186] int tmp___1 ; [L187] int tmp___2 ; [L190] splverifierCounter = 0 [L192] COND TRUE 1 [L194] COND TRUE splverifierCounter < 4 [L200] tmp = __VERIFIER_nondet_int() [L202] COND TRUE \read(tmp) [L204] CALL waterRise() [L67] COND TRUE waterLevel < 2 [L68] waterLevel = waterLevel + 1 [L204] RET waterRise() [L210] tmp___0 = __VERIFIER_nondet_int() [L212] COND TRUE \read(tmp___0) [L214] CALL changeMethaneLevel() [L79] COND FALSE !(\read(methaneLevelCritical)) [L82] methaneLevelCritical = 1 [L214] RET changeMethaneLevel() [L220] tmp___2 = __VERIFIER_nondet_int() [L222] COND TRUE \read(tmp___2) [L237] CALL timeShift() [L259] COND FALSE !(\read(pumpRunning)) [L266] COND TRUE \read(systemActive) [L268] CALL processEnvironment() [L288] int tmp ; [L291] COND TRUE ! pumpRunning [L293] CALL, EXPR isHighWaterLevel() [L385] int retValue_acc ; [L386] int tmp ; [L387] int tmp___0 ; [L391] CALL, EXPR isHighWaterSensorDry() [L129] int retValue_acc ; [L132] COND FALSE !(waterLevel < 2) [L136] retValue_acc = 0 [L137] return (retValue_acc); [L391] RET, EXPR isHighWaterSensorDry() [L391] tmp = isHighWaterSensorDry() [L393] COND FALSE !(\read(tmp)) [L396] tmp___0 = 1 [L398] retValue_acc = tmp___0 [L399] return (retValue_acc); [L293] RET, EXPR isHighWaterLevel() [L293] tmp = isHighWaterLevel() [L295] COND TRUE \read(tmp) [L297] CALL activatePump() [L316] pumpRunning = 1 [L297] RET activatePump() [L268] RET processEnvironment() [L274] CALL __utac_acc__Specification1_spec__1() [L154] int tmp ; [L155] int tmp___0 ; [L159] CALL, EXPR isMethaneLevelCritical() [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); [L159] RET, EXPR isMethaneLevelCritical() [L159] tmp = isMethaneLevelCritical() [L161] COND TRUE \read(tmp) [L163] CALL, EXPR isPumpRunning() [L340] int retValue_acc ; [L343] retValue_acc = pumpRunning [L344] return (retValue_acc); [L163] RET, EXPR isPumpRunning() [L163] tmp___0 = isPumpRunning() [L165] COND TRUE \read(tmp___0) [L167] CALL __automaton_fail() [L147] CALL reach_error() [L3] __assert_fail("0", "minepump_spec1_product35.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 233 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 48.2s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 28.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 671 SDtfs, 1868 SDslu, 1024 SDs, 0 SdLazy, 3938 SolverSat, 1227 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 204 GetRequests, 132 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 13.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1278occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 5 MinimizatonAttempts, 825 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 17.9s InterpolantComputationTime, 453 NumberOfCodeBlocks, 453 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 365 ConstructedInterpolants, 0 QuantifiedInterpolants, 122930 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 10/10 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...