/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product04.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 11:36:35,915 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 11:36:35,919 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 11:36:35,975 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 11:36:35,975 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 11:36:35,982 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 11:36:35,984 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 11:36:35,988 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 11:36:35,991 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 11:36:35,996 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 11:36:35,997 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 11:36:35,999 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 11:36:35,999 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 11:36:36,002 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 11:36:36,004 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 11:36:36,006 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 11:36:36,007 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 11:36:36,010 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 11:36:36,018 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 11:36:36,025 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 11:36:36,028 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 11:36:36,030 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 11:36:36,031 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 11:36:36,034 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 11:36:36,052 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 11:36:36,056 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 11:36:36,057 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 11:36:36,058 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 11:36:36,059 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 11:36:36,060 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 11:36:36,061 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 11:36:36,062 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 11:36:36,063 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 11:36:36,064 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 11:36:36,065 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 11:36:36,065 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 11:36:36,066 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 11:36:36,066 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 11:36:36,066 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 11:36:36,067 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 11:36:36,068 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 11:36:36,075 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-29 11:36:36,119 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 11:36:36,120 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 11:36:36,124 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 11:36:36,124 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 11:36:36,124 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 11:36:36,125 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 11:36:36,125 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 11:36:36,125 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 11:36:36,125 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 11:36:36,125 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 11:36:36,126 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 11:36:36,126 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 11:36:36,127 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 11:36:36,127 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 11:36:36,127 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 11:36:36,127 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 11:36:36,127 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 11:36:36,128 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 11:36:36,128 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 11:36:36,128 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 11:36:36,128 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 11:36:36,128 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 11:36:36,129 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 11:36:36,129 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 11:36:36,129 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 11:36:36,129 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 11:36:36,129 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 11:36:36,129 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 11:36:36,130 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 11:36:36,130 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 11:36:36,497 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 11:36:36,521 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 11:36:36,524 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 11:36:36,525 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 11:36:36,526 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 11:36:36,527 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product04.cil.c [2020-10-29 11:36:36,608 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3d6c90ca6/8c0723beb4454385813b23456a555561/FLAG09bdb5c79 [2020-10-29 11:36:37,344 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 11:36:37,344 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product04.cil.c [2020-10-29 11:36:37,360 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3d6c90ca6/8c0723beb4454385813b23456a555561/FLAG09bdb5c79 [2020-10-29 11:36:37,629 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3d6c90ca6/8c0723beb4454385813b23456a555561 [2020-10-29 11:36:37,634 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 11:36:37,641 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 11:36:37,646 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 11:36:37,646 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 11:36:37,650 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 11:36:37,651 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 11:36:37" (1/1) ... [2020-10-29 11:36:37,655 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c1c835d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:36:37, skipping insertion in model container [2020-10-29 11:36:37,656 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 11:36:37" (1/1) ... [2020-10-29 11:36:37,664 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 11:36:37,734 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 11:36:38,011 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 11:36:38,037 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 11:36:38,122 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 11:36:38,156 INFO L208 MainTranslator]: Completed translation [2020-10-29 11:36:38,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:36:38 WrapperNode [2020-10-29 11:36:38,157 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 11:36:38,158 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 11:36:38,158 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 11:36:38,159 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 11:36:38,173 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:36:38" (1/1) ... [2020-10-29 11:36:38,173 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:36:38" (1/1) ... [2020-10-29 11:36:38,191 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:36:38" (1/1) ... [2020-10-29 11:36:38,191 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:36:38" (1/1) ... [2020-10-29 11:36:38,218 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:36:38" (1/1) ... [2020-10-29 11:36:38,234 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:36:38" (1/1) ... [2020-10-29 11:36:38,245 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:36:38" (1/1) ... [2020-10-29 11:36:38,262 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 11:36:38,267 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 11:36:38,268 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 11:36:38,268 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 11:36:38,269 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:36:38" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 11:36:38,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 11:36:38,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 11:36:38,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-29 11:36:38,357 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 11:36:38,358 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-29 11:36:38,358 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-29 11:36:38,358 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-29 11:36:38,358 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-29 11:36:38,358 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-29 11:36:38,359 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-29 11:36:38,359 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-29 11:36:38,359 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-29 11:36:38,359 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-29 11:36:38,359 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-29 11:36:38,396 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-29 11:36:38,397 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-29 11:36:38,397 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-29 11:36:38,397 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-29 11:36:38,397 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-29 11:36:38,397 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-29 11:36:38,397 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-29 11:36:38,398 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-29 11:36:38,398 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-29 11:36:38,398 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-29 11:36:38,398 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 11:36:38,398 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-29 11:36:38,398 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-29 11:36:38,399 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-29 11:36:38,399 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-29 11:36:38,399 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-29 11:36:38,399 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-29 11:36:38,399 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-29 11:36:38,399 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-29 11:36:38,400 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-29 11:36:38,400 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-29 11:36:38,400 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-29 11:36:38,400 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-29 11:36:38,400 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 11:36:38,400 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 11:36:38,401 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 11:36:38,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 11:36:38,401 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 11:36:38,401 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-29 11:36:38,402 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-29 11:36:38,402 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-29 11:36:38,402 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-29 11:36:38,402 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-29 11:36:38,403 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-29 11:36:38,403 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-29 11:36:38,403 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-29 11:36:38,403 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-29 11:36:38,404 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-29 11:36:38,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-29 11:36:38,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-29 11:36:38,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 11:36:38,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-29 11:36:38,406 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-29 11:36:38,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 11:36:38,407 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-29 11:36:38,407 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-29 11:36:38,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 11:36:38,407 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-29 11:36:38,408 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-29 11:36:38,408 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-29 11:36:38,408 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-29 11:36:38,408 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-29 11:36:38,409 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-29 11:36:38,409 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-29 11:36:38,409 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-29 11:36:38,409 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-29 11:36:38,410 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-29 11:36:38,410 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-29 11:36:38,413 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-29 11:36:38,413 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-29 11:36:38,413 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-29 11:36:38,414 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 11:36:38,414 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-29 11:36:38,414 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-29 11:36:38,414 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-29 11:36:38,415 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-29 11:36:38,415 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-29 11:36:38,415 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-29 11:36:38,415 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-29 11:36:38,416 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-29 11:36:38,416 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-29 11:36:38,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 11:36:38,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 11:36:38,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 11:36:39,821 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 11:36:39,822 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-29 11:36:39,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 11:36:39 BoogieIcfgContainer [2020-10-29 11:36:39,824 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 11:36:39,826 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 11:36:39,826 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 11:36:39,830 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 11:36:39,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 11:36:37" (1/3) ... [2020-10-29 11:36:39,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@583e4edf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 11:36:39, skipping insertion in model container [2020-10-29 11:36:39,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:36:38" (2/3) ... [2020-10-29 11:36:39,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@583e4edf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 11:36:39, skipping insertion in model container [2020-10-29 11:36:39,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 11:36:39" (3/3) ... [2020-10-29 11:36:39,833 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product04.cil.c [2020-10-29 11:36:39,845 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 11:36:39,851 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-29 11:36:39,864 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-29 11:36:39,893 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 11:36:39,893 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 11:36:39,893 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 11:36:39,893 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 11:36:39,893 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 11:36:39,894 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 11:36:39,894 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 11:36:39,894 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 11:36:39,916 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states. [2020-10-29 11:36:39,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-29 11:36:39,925 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:36:39,926 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 11:36:39,927 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 11:36:39,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:36:39,933 INFO L82 PathProgramCache]: Analyzing trace with hash 1478929333, now seen corresponding path program 1 times [2020-10-29 11:36:39,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:36:39,943 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [923757769] [2020-10-29 11:36:39,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:36:40,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:40,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:40,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:41,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:42,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:42,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-29 11:36:42,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 11:36:42,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2577 [2020-10-29 11:36:42,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:42,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:42,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 11:36:42,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:36:42,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-29 11:36:42,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 11:36:43,283 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:36:43,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:36:43,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:43,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:43,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:43,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:36:43,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:43,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-29 11:36:43,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:43,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:43,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:36:43,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:36:43,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 11:36:43,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:36:43,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:36:43,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:43,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:43,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:43,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:36:43,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:43,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:36:43,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:43,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:43,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:36:43,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:36:43,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:36:43,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:36:43,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:36:43,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:43,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:43,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:43,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:36:43,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:43,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:36:43,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:43,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:43,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:36:43,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:36:43,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:36:43,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:36:43,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:36:43,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:43,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:43,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:43,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:36:43,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:43,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:36:43,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:43,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:43,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:36:43,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:36:43,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:36:43,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:36:43,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:36:43,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:43,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:43,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:43,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:36:43,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:43,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:36:43,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:43,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:43,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:36:43,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:36:43,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:36:43,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:36:43,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-29 11:36:43,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:43,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:43,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:43,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:36:43,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:43,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:36:43,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:43,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:43,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:36:43,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:36:43,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:36:43,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:36:43,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 11:36:43,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:43,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:43,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:43,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:36:43,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:43,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:36:43,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:43,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:43,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:36:43,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:36:43,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:36:43,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:36:43,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-29 11:36:43,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:43,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:43,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:43,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:36:43,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:43,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:36:43,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:43,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:43,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:36:43,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:36:43,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:36:43,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:36:43,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 11:36:43,523 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [923757769] [2020-10-29 11:36:43,525 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 11:36:43,525 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 11:36:43,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137078361] [2020-10-29 11:36:43,532 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 11:36:43,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:36:43,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 11:36:43,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 11:36:43,550 INFO L87 Difference]: Start difference. First operand 150 states. Second operand 4 states. [2020-10-29 11:36:43,977 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:36:45,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:36:45,727 INFO L93 Difference]: Finished difference Result 349 states and 467 transitions. [2020-10-29 11:36:45,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 11:36:45,729 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-10-29 11:36:45,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:36:45,743 INFO L225 Difference]: With dead ends: 349 [2020-10-29 11:36:45,744 INFO L226 Difference]: Without dead ends: 223 [2020-10-29 11:36:45,748 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 11:36:45,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2020-10-29 11:36:45,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 161. [2020-10-29 11:36:45,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2020-10-29 11:36:45,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 190 transitions. [2020-10-29 11:36:45,867 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 190 transitions. Word has length 53 [2020-10-29 11:36:45,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:36:45,867 INFO L481 AbstractCegarLoop]: Abstraction has 161 states and 190 transitions. [2020-10-29 11:36:45,867 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 11:36:45,868 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 190 transitions. [2020-10-29 11:36:45,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-29 11:36:45,871 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:36:45,872 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] [2020-10-29 11:36:45,872 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 11:36:45,872 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 11:36:45,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:36:45,873 INFO L82 PathProgramCache]: Analyzing trace with hash 1437552337, now seen corresponding path program 1 times [2020-10-29 11:36:45,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:36:45,873 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [980466153] [2020-10-29 11:36:45,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:36:45,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:45,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:45,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:47,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:47,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-29 11:36:47,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 11:36:47,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2067 [2020-10-29 11:36:47,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:47,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:47,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 11:36:47,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:36:47,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-29 11:36:47,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:48,362 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:36:48,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:36:48,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:48,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:48,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:48,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:36:48,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:48,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-29 11:36:48,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:48,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:48,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:36:48,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:36:48,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 11:36:48,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:48,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:36:48,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:48,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:48,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:48,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:36:48,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:48,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:36:48,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:48,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:48,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:36:48,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:36:48,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:36:48,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:48,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:36:48,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:48,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:48,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:48,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:36:48,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:48,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:36:48,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:48,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:48,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:36:48,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:36:48,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:36:48,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:48,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:36:48,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:48,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:48,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:48,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:36:48,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:48,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:36:48,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:48,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:48,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:36:48,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:36:48,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:36:48,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:48,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:36:48,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:48,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:48,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:48,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:36:48,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:48,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:36:48,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:48,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:48,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:36:48,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:36:48,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:36:48,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:48,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-29 11:36:48,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:48,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:48,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:48,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:36:48,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:48,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:36:48,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:48,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:48,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:36:48,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:36:48,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:36:48,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:48,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-29 11:36:48,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:48,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:48,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:48,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:36:48,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:48,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:36:48,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:48,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:48,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:36:48,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:36:48,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:36:48,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:36:48,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-29 11:36:48,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:48,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:48,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:48,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:36:48,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:48,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 11:36:48,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:48,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:48,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 11:36:48,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:36:48,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:36:48,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:36:48,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-29 11:36:48,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:48,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:48,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:48,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:36:48,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:48,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:36:48,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:48,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:48,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:36:48,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:36:48,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:36:48,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:48,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 11:36:48,561 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [980466153] [2020-10-29 11:36:48,561 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 11:36:48,562 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-29 11:36:48,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872118515] [2020-10-29 11:36:48,563 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 11:36:48,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:36:48,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 11:36:48,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-29 11:36:48,565 INFO L87 Difference]: Start difference. First operand 161 states and 190 transitions. Second operand 7 states. [2020-10-29 11:36:49,068 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:36:50,536 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:36:50,974 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-29 11:36:51,360 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-29 11:36:51,767 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:36:52,224 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:36:52,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:36:52,841 INFO L93 Difference]: Finished difference Result 466 states and 602 transitions. [2020-10-29 11:36:52,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 11:36:52,843 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2020-10-29 11:36:52,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:36:52,854 INFO L225 Difference]: With dead ends: 466 [2020-10-29 11:36:52,854 INFO L226 Difference]: Without dead ends: 329 [2020-10-29 11:36:52,859 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-10-29 11:36:52,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2020-10-29 11:36:52,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 292. [2020-10-29 11:36:52,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2020-10-29 11:36:52,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 362 transitions. [2020-10-29 11:36:52,996 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 362 transitions. Word has length 57 [2020-10-29 11:36:52,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:36:52,997 INFO L481 AbstractCegarLoop]: Abstraction has 292 states and 362 transitions. [2020-10-29 11:36:52,997 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 11:36:52,997 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 362 transitions. [2020-10-29 11:36:53,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-29 11:36:53,013 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:36:53,013 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] [2020-10-29 11:36:53,014 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 11:36:53,014 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 11:36:53,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:36:53,014 INFO L82 PathProgramCache]: Analyzing trace with hash -1216087177, now seen corresponding path program 1 times [2020-10-29 11:36:53,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:36:53,015 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [749469742] [2020-10-29 11:36:53,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:36:53,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:53,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:53,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:53,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:54,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:58,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:58,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-29 11:36:58,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 11:36:58,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-29 11:36:58,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:58,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:58,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-29 11:36:58,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:36:58,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-29 11:36:58,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:58,497 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:36:58,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:36:58,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:58,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:58,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:58,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:36:58,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:58,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-29 11:36:58,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:58,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:58,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:36:58,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:36:58,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 11:36:58,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:58,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:36:58,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:58,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:58,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:58,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:36:58,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:58,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:36:58,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:58,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:58,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:36:58,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:36:58,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:36:58,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:58,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:36:58,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:58,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:58,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:58,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:36:58,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:58,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:36:58,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:58,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:58,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:36:58,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:36:58,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:36:58,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:58,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:36:58,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:58,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:58,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:58,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:36:58,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:58,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:36:58,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:58,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:58,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:36:58,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:36:58,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:36:58,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:58,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:36:58,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:58,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:58,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:58,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:36:58,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:58,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:36:58,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:58,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:58,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:36:58,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:36:58,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:36:58,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:58,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-29 11:36:58,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:58,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:58,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:58,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:36:58,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:58,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 11:36:58,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:58,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:58,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 11:36:58,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 11:36:58,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 11:36:58,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:58,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-29 11:36:58,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:58,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:58,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:58,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:36:58,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:58,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:36:58,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:58,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:58,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:36:58,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:36:58,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:36:58,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:36:58,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-29 11:36:58,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:58,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:58,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:58,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:36:58,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:58,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:36:58,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:58,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:58,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:36:58,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:36:58,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:36:58,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:58,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-29 11:36:58,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:58,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:58,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:58,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:36:58,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:58,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 11:36:58,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:58,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:58,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 11:36:58,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:36:58,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:36:58,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:58,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-29 11:36:58,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:58,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:58,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:58,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:36:58,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:58,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:36:58,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:58,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:58,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:36:58,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:36:58,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:36:58,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:58,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 11:36:58,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [749469742] [2020-10-29 11:36:58,761 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 11:36:58,761 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-29 11:36:58,762 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471411677] [2020-10-29 11:36:58,762 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 11:36:58,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:36:58,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 11:36:58,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-29 11:36:58,763 INFO L87 Difference]: Start difference. First operand 292 states and 362 transitions. Second operand 11 states. [2020-10-29 11:36:59,318 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:37:00,302 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-29 11:37:01,286 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-29 11:37:01,653 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-29 11:37:02,115 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-29 11:37:02,516 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-29 11:37:03,137 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-29 11:37:03,706 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-29 11:37:04,085 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-29 11:37:04,584 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-29 11:37:04,997 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-29 11:37:06,106 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-29 11:37:06,510 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:37:08,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:37:08,233 INFO L93 Difference]: Finished difference Result 962 states and 1347 transitions. [2020-10-29 11:37:08,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-29 11:37:08,233 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 61 [2020-10-29 11:37:08,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:37:08,241 INFO L225 Difference]: With dead ends: 962 [2020-10-29 11:37:08,241 INFO L226 Difference]: Without dead ends: 746 [2020-10-29 11:37:08,246 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=176, Invalid=636, Unknown=0, NotChecked=0, Total=812 [2020-10-29 11:37:08,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2020-10-29 11:37:08,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 635. [2020-10-29 11:37:08,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 635 states. [2020-10-29 11:37:08,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 801 transitions. [2020-10-29 11:37:08,409 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 801 transitions. Word has length 61 [2020-10-29 11:37:08,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:37:08,410 INFO L481 AbstractCegarLoop]: Abstraction has 635 states and 801 transitions. [2020-10-29 11:37:08,410 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 11:37:08,410 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 801 transitions. [2020-10-29 11:37:08,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-29 11:37:08,412 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:37:08,413 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] [2020-10-29 11:37:08,413 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 11:37:08,413 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 11:37:08,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:37:08,414 INFO L82 PathProgramCache]: Analyzing trace with hash 1186476411, now seen corresponding path program 1 times [2020-10-29 11:37:08,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:37:08,414 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [952994457] [2020-10-29 11:37:08,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:37:08,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-29 11:37:08,456 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-29 11:37:08,457 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-29 11:37:08,461 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 11:37:08,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 11:37:08 BoogieIcfgContainer [2020-10-29 11:37:08,482 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 11:37:08,484 INFO L168 Benchmark]: Toolchain (without parser) took 30847.39 ms. Allocated memory was 157.3 MB in the beginning and 664.8 MB in the end (delta: 507.5 MB). Free memory was 131.1 MB in the beginning and 380.1 MB in the end (delta: -249.0 MB). Peak memory consumption was 259.2 MB. Max. memory is 8.0 GB. [2020-10-29 11:37:08,485 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 157.3 MB. Free memory is still 130.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 11:37:08,485 INFO L168 Benchmark]: CACSL2BoogieTranslator took 511.62 ms. Allocated memory is still 157.3 MB. Free memory was 130.5 MB in the beginning and 110.5 MB in the end (delta: 20.0 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-10-29 11:37:08,486 INFO L168 Benchmark]: Boogie Preprocessor took 104.22 ms. Allocated memory is still 157.3 MB. Free memory was 110.5 MB in the beginning and 106.6 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-29 11:37:08,487 INFO L168 Benchmark]: RCFGBuilder took 1556.74 ms. Allocated memory is still 157.3 MB. Free memory was 106.6 MB in the beginning and 57.3 MB in the end (delta: 49.3 MB). Peak memory consumption was 50.3 MB. Max. memory is 8.0 GB. [2020-10-29 11:37:08,488 INFO L168 Benchmark]: TraceAbstraction took 28656.23 ms. Allocated memory was 157.3 MB in the beginning and 664.8 MB in the end (delta: 507.5 MB). Free memory was 57.3 MB in the beginning and 380.1 MB in the end (delta: -322.8 MB). Peak memory consumption was 183.7 MB. Max. memory is 8.0 GB. [2020-10-29 11:37:08,491 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 157.3 MB. Free memory is still 130.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 511.62 ms. Allocated memory is still 157.3 MB. Free memory was 130.5 MB in the beginning and 110.5 MB in the end (delta: 20.0 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 104.22 ms. Allocated memory is still 157.3 MB. Free memory was 110.5 MB in the beginning and 106.6 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1556.74 ms. Allocated memory is still 157.3 MB. Free memory was 106.6 MB in the beginning and 57.3 MB in the end (delta: 49.3 MB). Peak memory consumption was 50.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 28656.23 ms. Allocated memory was 157.3 MB in the beginning and 664.8 MB in the end (delta: 507.5 MB). Free memory was 57.3 MB in the beginning and 380.1 MB in the end (delta: -322.8 MB). Peak memory consumption was 183.7 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: [L48] int waterLevel = 1; [L49] int methaneLevelCritical = 0; [L297] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L532] int cleanupTimeShifts = 4; [L679] int pumpRunning = 0; [L680] int systemActive = 1; [L608] int retValue_acc ; [L609] int tmp ; [L613] FCALL select_helpers() [L614] FCALL select_features() [L615] CALL, EXPR valid_product() [L523] int retValue_acc ; [L526] retValue_acc = 1 [L527] return (retValue_acc); [L615] RET, EXPR valid_product() [L615] tmp = valid_product() [L617] COND TRUE \read(tmp) [L619] FCALL setup() [L620] CALL runTest() [L602] CALL test() [L810] int splverifierCounter ; [L811] int tmp ; [L812] int tmp___0 ; [L813] int tmp___1 ; [L814] int tmp___2 ; [L817] splverifierCounter = 0 [L819] COND TRUE 1 [L821] COND TRUE splverifierCounter < 4 [L827] tmp = __VERIFIER_nondet_int() [L829] COND TRUE \read(tmp) [L831] CALL waterRise() [L66] COND TRUE waterLevel < 2 [L67] waterLevel = waterLevel + 1 [L831] RET waterRise() [L837] tmp___0 = __VERIFIER_nondet_int() [L839] COND FALSE !(\read(tmp___0)) [L847] tmp___2 = __VERIFIER_nondet_int() [L849] COND FALSE !(\read(tmp___2)) [L855] tmp___1 = __VERIFIER_nondet_int() [L857] COND FALSE !(\read(tmp___1)) [L866] CALL timeShift() [L686] COND FALSE !(\read(pumpRunning)) [L693] COND TRUE \read(systemActive) [L695] FCALL processEnvironment() [L701] CALL __utac_acc__Specification3_spec__1() [L642] int tmp ; [L643] int tmp___0 ; [L644] int tmp___1 ; [L648] CALL, EXPR isMethaneLevelCritical() [L87] int retValue_acc ; [L90] retValue_acc = methaneLevelCritical [L91] return (retValue_acc); [L648] RET, EXPR isMethaneLevelCritical() [L648] tmp = isMethaneLevelCritical() [L650] COND FALSE !(\read(tmp)) [L654] CALL, EXPR getWaterLevel() [L119] int retValue_acc ; [L122] retValue_acc = waterLevel [L123] return (retValue_acc); [L654] RET, EXPR getWaterLevel() [L654] tmp___0 = getWaterLevel() [L656] COND TRUE tmp___0 == 2 [L658] CALL, EXPR isPumpRunning() [L741] int retValue_acc ; [L744] retValue_acc = pumpRunning [L745] return (retValue_acc); [L658] RET, EXPR isPumpRunning() [L658] tmp___1 = isPumpRunning() [L660] COND FALSE !(\read(tmp___1)) [L664] CALL __automaton_fail() [L635] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product04.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 219 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 28.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 15.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 335 SDtfs, 848 SDslu, 532 SDs, 0 SdLazy, 2267 SolverSat, 506 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 108 GetRequests, 66 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 8.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=635occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 3 MinimizatonAttempts, 210 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 11.5s InterpolantComputationTime, 237 NumberOfCodeBlocks, 237 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 168 ConstructedInterpolants, 0 QuantifiedInterpolants, 57708 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...