/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_spec3_product44.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 03:36:29,419 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 03:36:29,424 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 03:36:29,478 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 03:36:29,479 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 03:36:29,487 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 03:36:29,489 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 03:36:29,494 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 03:36:29,498 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 03:36:29,506 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 03:36:29,508 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 03:36:29,509 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 03:36:29,509 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 03:36:29,513 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 03:36:29,517 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 03:36:29,520 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 03:36:29,521 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 03:36:29,525 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 03:36:29,532 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 03:36:29,539 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 03:36:29,543 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 03:36:29,545 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 03:36:29,547 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 03:36:29,549 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 03:36:29,554 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 03:36:29,554 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 03:36:29,554 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 03:36:29,557 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 03:36:29,557 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 03:36:29,558 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 03:36:29,559 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 03:36:29,560 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 03:36:29,562 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 03:36:29,562 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 03:36:29,564 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 03:36:29,564 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 03:36:29,565 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 03:36:29,565 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 03:36:29,565 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 03:36:29,575 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 03:36:29,576 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 03:36:29,584 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 03:36:29,640 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 03:36:29,641 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 03:36:29,646 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 03:36:29,646 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 03:36:29,646 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 03:36:29,647 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 03:36:29,647 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 03:36:29,647 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 03:36:29,647 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 03:36:29,647 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 03:36:29,649 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 03:36:29,649 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 03:36:29,649 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 03:36:29,649 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 03:36:29,650 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 03:36:29,650 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 03:36:29,650 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 03:36:29,650 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 03:36:29,650 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 03:36:29,651 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 03:36:29,651 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 03:36:29,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 03:36:29,651 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 03:36:29,652 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 03:36:29,652 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 03:36:29,652 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 03:36:29,652 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 03:36:29,652 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 03:36:29,653 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 03:36:29,653 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 03:36:30,145 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 03:36:30,197 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 03:36:30,200 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 03:36:30,202 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 03:36:30,203 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 03:36:30,204 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product44.cil.c [2020-10-27 03:36:30,300 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/13bff4445/c626b9779f36416987f7cd61e9a06524/FLAG0904954d9 [2020-10-27 03:36:31,071 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 03:36:31,072 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product44.cil.c [2020-10-27 03:36:31,092 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/13bff4445/c626b9779f36416987f7cd61e9a06524/FLAG0904954d9 [2020-10-27 03:36:31,284 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/13bff4445/c626b9779f36416987f7cd61e9a06524 [2020-10-27 03:36:31,289 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 03:36:31,297 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 03:36:31,301 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 03:36:31,302 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 03:36:31,306 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 03:36:31,307 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:36:31" (1/1) ... [2020-10-27 03:36:31,317 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d0a98c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:36:31, skipping insertion in model container [2020-10-27 03:36:31,317 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:36:31" (1/1) ... [2020-10-27 03:36:31,327 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 03:36:31,401 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 03:36:31,821 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 03:36:31,834 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 03:36:31,908 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 03:36:31,946 INFO L208 MainTranslator]: Completed translation [2020-10-27 03:36:31,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:36:31 WrapperNode [2020-10-27 03:36:31,947 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 03:36:31,948 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 03:36:31,948 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 03:36:31,948 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 03:36:31,963 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:36:31" (1/1) ... [2020-10-27 03:36:31,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:36:31" (1/1) ... [2020-10-27 03:36:31,982 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:36:31" (1/1) ... [2020-10-27 03:36:31,982 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:36:31" (1/1) ... [2020-10-27 03:36:32,013 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:36:31" (1/1) ... [2020-10-27 03:36:32,029 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:36:31" (1/1) ... [2020-10-27 03:36:32,040 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:36:31" (1/1) ... [2020-10-27 03:36:32,059 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 03:36:32,060 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 03:36:32,060 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 03:36:32,060 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 03:36:32,061 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:36:31" (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 03:36:32,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 03:36:32,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 03:36:32,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-27 03:36:32,152 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 03:36:32,152 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-27 03:36:32,152 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-27 03:36:32,152 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-27 03:36:32,153 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-27 03:36:32,153 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 03:36:32,153 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-27 03:36:32,153 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-27 03:36:32,153 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-27 03:36:32,153 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-27 03:36:32,154 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-27 03:36:32,154 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-27 03:36:32,154 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-27 03:36:32,154 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-27 03:36:32,154 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-27 03:36:32,154 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-27 03:36:32,155 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-27 03:36:32,155 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-27 03:36:32,155 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-27 03:36:32,155 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-27 03:36:32,155 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-27 03:36:32,155 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-27 03:36:32,156 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-27 03:36:32,156 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-27 03:36:32,156 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-27 03:36:32,156 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-27 03:36:32,156 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-27 03:36:32,156 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-27 03:36:32,157 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-10-27 03:36:32,157 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-27 03:36:32,157 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-27 03:36:32,157 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-27 03:36:32,157 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-27 03:36:32,157 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-27 03:36:32,157 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-27 03:36:32,158 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-27 03:36:32,158 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-27 03:36:32,158 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-27 03:36:32,158 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 03:36:32,158 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 03:36:32,159 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 03:36:32,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 03:36:32,159 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 03:36:32,159 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-27 03:36:32,159 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-27 03:36:32,159 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-27 03:36:32,160 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-27 03:36:32,160 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-27 03:36:32,160 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-27 03:36:32,160 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-27 03:36:32,160 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-27 03:36:32,160 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-27 03:36:32,161 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-27 03:36:32,161 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-27 03:36:32,161 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-27 03:36:32,161 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-27 03:36:32,161 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 03:36:32,161 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-27 03:36:32,162 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-27 03:36:32,162 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-27 03:36:32,162 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-27 03:36:32,162 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-27 03:36:32,162 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-27 03:36:32,162 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-27 03:36:32,163 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-27 03:36:32,163 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-27 03:36:32,163 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-27 03:36:32,163 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-27 03:36:32,163 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-27 03:36:32,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-27 03:36:32,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-27 03:36:32,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 03:36:32,164 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-27 03:36:32,164 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-27 03:36:32,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 03:36:32,165 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-27 03:36:32,165 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-27 03:36:32,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 03:36:32,165 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-27 03:36:32,165 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-27 03:36:32,165 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-27 03:36:32,166 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-27 03:36:32,166 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-27 03:36:32,166 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-27 03:36:32,166 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-27 03:36:32,166 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-27 03:36:32,166 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-27 03:36:32,167 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-27 03:36:32,167 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-10-27 03:36:32,167 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-27 03:36:32,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 03:36:32,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 03:36:32,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 03:36:33,479 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 03:36:33,480 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-27 03:36:33,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:36:33 BoogieIcfgContainer [2020-10-27 03:36:33,486 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 03:36:33,489 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 03:36:33,490 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 03:36:33,493 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 03:36:33,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 03:36:31" (1/3) ... [2020-10-27 03:36:33,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2457dd12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:36:33, skipping insertion in model container [2020-10-27 03:36:33,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:36:31" (2/3) ... [2020-10-27 03:36:33,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2457dd12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:36:33, skipping insertion in model container [2020-10-27 03:36:33,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:36:33" (3/3) ... [2020-10-27 03:36:33,498 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product44.cil.c [2020-10-27 03:36:33,511 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 03:36:33,517 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-27 03:36:33,531 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-27 03:36:33,573 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 03:36:33,574 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 03:36:33,574 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 03:36:33,574 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 03:36:33,574 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 03:36:33,575 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 03:36:33,576 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 03:36:33,576 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 03:36:33,607 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states. [2020-10-27 03:36:33,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-27 03:36:33,622 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:36:33,623 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] [2020-10-27 03:36:33,625 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 03:36:33,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:36:33,637 INFO L82 PathProgramCache]: Analyzing trace with hash -25429987, now seen corresponding path program 1 times [2020-10-27 03:36:33,646 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:36:33,646 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [473809913] [2020-10-27 03:36:33,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:36:33,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:34,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:34,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:35,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:37,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:37,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-27 03:36:37,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 03:36:37,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3121 [2020-10-27 03:36:37,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:37,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 03:36:37,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:36:37,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 03:36:37,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-27 03:36:37,893 WARN L193 SmtUtils]: Spent 625.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 03:36:37,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:36:37,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:37,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:38,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:38,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:38,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:38,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-10-27 03:36:38,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:38,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:38,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:38,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 03:36:38,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:38,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 03:36:38,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:38,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:38,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:38,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:36:38,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:38,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 03:36:38,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:38,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:38,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:38,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:36:38,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 03:36:38,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 03:36:38,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:38,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:38,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:38,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:36:38,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:38,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:36:38,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:38,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:38,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:38,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:36:38,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:38,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 03:36:38,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:38,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:38,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:38,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:38,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:38,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 03:36:38,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:38,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:38,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:38,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:36:38,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:38,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 03:36:38,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:38,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:38,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:38,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:36:38,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:38,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:36:38,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:38,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:38,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:38,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:36:38,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:38,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 03:36:38,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:38,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:38,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:38,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:38,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:38,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:36:38,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:38,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:36:38,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:36:38,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:36:38,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:38,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 03:36:38,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:38,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:38,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:38,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:38,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:38,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:36:38,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:38,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:36:38,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:36:38,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:36:38,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:38,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 03:36:38,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:38,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:38,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:38,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:38,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:38,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:36:38,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:38,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:36:38,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:36:38,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:36:38,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:38,204 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 03:36:38,205 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [473809913] [2020-10-27 03:36:38,207 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:36:38,208 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 03:36:38,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243804010] [2020-10-27 03:36:38,215 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 03:36:38,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:36:38,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 03:36:38,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 03:36:38,234 INFO L87 Difference]: Start difference. First operand 183 states. Second operand 4 states. [2020-10-27 03:36:38,958 WARN L193 SmtUtils]: Spent 596.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:36:41,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:36:41,236 INFO L93 Difference]: Finished difference Result 465 states and 606 transitions. [2020-10-27 03:36:41,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 03:36:41,239 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-10-27 03:36:41,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:36:41,258 INFO L225 Difference]: With dead ends: 465 [2020-10-27 03:36:41,258 INFO L226 Difference]: Without dead ends: 303 [2020-10-27 03:36:41,266 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 03:36:41,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-10-27 03:36:41,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 233. [2020-10-27 03:36:41,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-10-27 03:36:41,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 276 transitions. [2020-10-27 03:36:41,466 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 276 transitions. Word has length 53 [2020-10-27 03:36:41,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:36:41,466 INFO L481 AbstractCegarLoop]: Abstraction has 233 states and 276 transitions. [2020-10-27 03:36:41,466 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 03:36:41,467 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 276 transitions. [2020-10-27 03:36:41,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-27 03:36:41,471 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:36:41,472 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] [2020-10-27 03:36:41,472 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 03:36:41,472 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 03:36:41,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:36:41,473 INFO L82 PathProgramCache]: Analyzing trace with hash 258274009, now seen corresponding path program 1 times [2020-10-27 03:36:41,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:36:41,474 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1596184282] [2020-10-27 03:36:41,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:36:41,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:41,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:41,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:42,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:44,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:46,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:46,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-27 03:36:46,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 03:36:46,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-27 03:36:46,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:46,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 03:36:46,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:36:46,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-27 03:36:46,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:46,807 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 03:36:46,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:36:46,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:46,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:46,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:46,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:46,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:46,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-27 03:36:46,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:46,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:46,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:46,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 03:36:46,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:46,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 03:36:46,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:46,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:46,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:46,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:36:46,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:46,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 03:36:46,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:46,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:46,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:46,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:36:46,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-27 03:36:46,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 03:36:46,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:46,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:46,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:46,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:36:46,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:46,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:36:46,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:46,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:46,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:46,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:36:46,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:46,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 03:36:46,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:46,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:46,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:46,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:46,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:46,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:36:46,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:46,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:46,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:46,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:36:46,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:46,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 03:36:46,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:46,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:46,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:46,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:36:46,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:46,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:36:46,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:46,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:46,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:46,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:36:46,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:46,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-27 03:36:47,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:47,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:47,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:47,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 03:36:47,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:47,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 03:36:47,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:47,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 03:36:47,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 03:36:47,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 03:36:47,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:47,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:36:47,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:47,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:47,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:47,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:36:47,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:47,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:36:47,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:47,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:47,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:47,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:36:47,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:47,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-27 03:36:47,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:47,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:47,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:47,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:47,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:47,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:36:47,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:47,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:36:47,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:36:47,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:36:47,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-27 03:36:47,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-27 03:36:47,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:47,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:47,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:47,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:47,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:47,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:36:47,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:47,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:36:47,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:36:47,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:36:47,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:47,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 03:36:47,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:47,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:47,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:47,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:47,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:47,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:36:47,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:47,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:36:47,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:36:47,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:36:47,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:47,083 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 03:36:47,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1596184282] [2020-10-27 03:36:47,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:36:47,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 03:36:47,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054750179] [2020-10-27 03:36:47,087 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 03:36:47,088 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:36:47,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 03:36:47,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-27 03:36:47,089 INFO L87 Difference]: Start difference. First operand 233 states and 276 transitions. Second operand 7 states. [2020-10-27 03:36:47,485 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:36:48,841 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 03:36:49,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:36:49,942 INFO L93 Difference]: Finished difference Result 736 states and 958 transitions. [2020-10-27 03:36:49,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 03:36:49,944 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 67 [2020-10-27 03:36:49,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:36:49,956 INFO L225 Difference]: With dead ends: 736 [2020-10-27 03:36:49,956 INFO L226 Difference]: Without dead ends: 527 [2020-10-27 03:36:49,963 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-10-27 03:36:49,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2020-10-27 03:36:50,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 432. [2020-10-27 03:36:50,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 432 states. [2020-10-27 03:36:50,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 521 transitions. [2020-10-27 03:36:50,141 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 521 transitions. Word has length 67 [2020-10-27 03:36:50,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:36:50,142 INFO L481 AbstractCegarLoop]: Abstraction has 432 states and 521 transitions. [2020-10-27 03:36:50,142 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 03:36:50,142 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 521 transitions. [2020-10-27 03:36:50,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-27 03:36:50,150 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:36:50,151 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] [2020-10-27 03:36:50,151 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 03:36:50,151 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 03:36:50,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:36:50,152 INFO L82 PathProgramCache]: Analyzing trace with hash -1521937926, now seen corresponding path program 1 times [2020-10-27 03:36:50,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:36:50,153 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [310312073] [2020-10-27 03:36:50,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:36:50,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:50,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:51,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:51,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-27 03:36:51,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:51,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 877 [2020-10-27 03:36:51,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:51,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 03:36:51,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:36:51,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-27 03:36:51,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:51,382 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 03:36:51,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:36:51,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:51,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:51,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:51,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:51,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:51,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-27 03:36:51,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:51,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:51,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:51,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 03:36:51,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:51,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 03:36:51,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:51,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:51,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:51,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:36:51,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:51,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:36:51,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:51,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:51,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:51,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:36:51,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:51,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 03:36:51,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:51,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:51,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:51,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:36:51,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:51,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:36:51,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:51,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:51,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:51,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:36:51,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:51,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 03:36:51,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:51,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:51,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:51,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:51,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:51,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:36:51,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:51,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:51,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:51,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:36:51,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:51,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 03:36:51,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:51,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:51,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:51,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:36:51,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:51,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:36:51,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:51,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:51,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:51,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:36:51,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:51,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-27 03:36:51,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:51,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:51,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:51,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 03:36:51,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:51,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:36:51,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:51,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:51,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:51,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 03:36:51,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 03:36:51,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 03:36:51,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:51,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:51,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:51,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:51,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:51,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:36:51,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:51,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:51,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:51,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:36:51,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:51,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-27 03:36:51,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:51,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:51,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:51,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:51,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:51,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:36:51,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:51,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 03:36:51,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:51,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:36:51,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:51,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-27 03:36:51,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:51,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:51,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:51,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:51,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:51,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:36:51,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:51,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:36:51,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:36:51,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:36:51,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 03:36:51,607 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 03:36:51,608 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [310312073] [2020-10-27 03:36:51,608 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:36:51,608 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-27 03:36:51,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287483611] [2020-10-27 03:36:51,609 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 03:36:51,609 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:36:51,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 03:36:51,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-27 03:36:51,610 INFO L87 Difference]: Start difference. First operand 432 states and 521 transitions. Second operand 9 states. [2020-10-27 03:36:52,025 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:36:53,206 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:36:53,611 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-27 03:36:53,952 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-27 03:36:54,243 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:36:54,656 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 03:36:56,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:36:56,439 INFO L93 Difference]: Finished difference Result 1323 states and 1798 transitions. [2020-10-27 03:36:56,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 03:36:56,449 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 64 [2020-10-27 03:36:56,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:36:56,458 INFO L225 Difference]: With dead ends: 1323 [2020-10-27 03:36:56,458 INFO L226 Difference]: Without dead ends: 841 [2020-10-27 03:36:56,462 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2020-10-27 03:36:56,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 841 states. [2020-10-27 03:36:56,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 841 to 764. [2020-10-27 03:36:56,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 764 states. [2020-10-27 03:36:56,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 764 states to 764 states and 928 transitions. [2020-10-27 03:36:56,666 INFO L78 Accepts]: Start accepts. Automaton has 764 states and 928 transitions. Word has length 64 [2020-10-27 03:36:56,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:36:56,666 INFO L481 AbstractCegarLoop]: Abstraction has 764 states and 928 transitions. [2020-10-27 03:36:56,666 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 03:36:56,666 INFO L276 IsEmpty]: Start isEmpty. Operand 764 states and 928 transitions. [2020-10-27 03:36:56,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-27 03:36:56,668 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:36:56,669 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] [2020-10-27 03:36:56,669 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 03:36:56,669 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 03:36:56,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:36:56,670 INFO L82 PathProgramCache]: Analyzing trace with hash 2071495412, now seen corresponding path program 1 times [2020-10-27 03:36:56,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:36:56,670 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [525938529] [2020-10-27 03:36:56,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:36:56,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 03:36:56,717 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 03:36:56,718 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 03:36:56,722 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 03:36:56,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 03:36:56 BoogieIcfgContainer [2020-10-27 03:36:56,744 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 03:36:56,746 INFO L168 Benchmark]: Toolchain (without parser) took 25454.43 ms. Allocated memory was 151.0 MB in the beginning and 467.7 MB in the end (delta: 316.7 MB). Free memory was 125.5 MB in the beginning and 382.8 MB in the end (delta: -257.3 MB). Peak memory consumption was 60.3 MB. Max. memory is 8.0 GB. [2020-10-27 03:36:56,747 INFO L168 Benchmark]: CDTParser took 0.75 ms. Allocated memory is still 125.8 MB. Free memory is still 100.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 03:36:56,748 INFO L168 Benchmark]: CACSL2BoogieTranslator took 645.78 ms. Allocated memory is still 151.0 MB. Free memory was 124.7 MB in the beginning and 103.6 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-27 03:36:56,748 INFO L168 Benchmark]: Boogie Preprocessor took 111.26 ms. Allocated memory is still 151.0 MB. Free memory was 103.6 MB in the beginning and 99.6 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-27 03:36:56,749 INFO L168 Benchmark]: RCFGBuilder took 1426.24 ms. Allocated memory is still 151.0 MB. Free memory was 99.6 MB in the beginning and 93.1 MB in the end (delta: 6.4 MB). Peak memory consumption was 20.7 MB. Max. memory is 8.0 GB. [2020-10-27 03:36:56,750 INFO L168 Benchmark]: TraceAbstraction took 23255.27 ms. Allocated memory was 151.0 MB in the beginning and 467.7 MB in the end (delta: 316.7 MB). Free memory was 92.6 MB in the beginning and 382.8 MB in the end (delta: -290.2 MB). Peak memory consumption was 25.9 MB. Max. memory is 8.0 GB. [2020-10-27 03:36:56,753 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.75 ms. Allocated memory is still 125.8 MB. Free memory is still 100.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 645.78 ms. Allocated memory is still 151.0 MB. Free memory was 124.7 MB in the beginning and 103.6 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 111.26 ms. Allocated memory is still 151.0 MB. Free memory was 103.6 MB in the beginning and 99.6 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1426.24 ms. Allocated memory is still 151.0 MB. Free memory was 99.6 MB in the beginning and 93.1 MB in the end (delta: 6.4 MB). Peak memory consumption was 20.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 23255.27 ms. Allocated memory was 151.0 MB in the beginning and 467.7 MB in the end (delta: 316.7 MB). Free memory was 92.6 MB in the beginning and 382.8 MB in the end (delta: -290.2 MB). Peak memory consumption was 25.9 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: [L42] int cleanupTimeShifts = 4; [L187] int waterLevel = 1; [L188] int methaneLevelCritical = 0; [L494] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L695] int pumpRunning = 0; [L696] int systemActive = 1; [L123] int retValue_acc ; [L124] int tmp ; [L128] FCALL select_helpers() [L129] FCALL select_features() [L130] CALL, EXPR valid_product() [L307] int retValue_acc ; [L310] retValue_acc = 1 [L311] return (retValue_acc); [L130] RET, EXPR valid_product() [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) [L134] FCALL setup() [L135] CALL runTest() [L114] CALL test() [L889] int splverifierCounter ; [L890] int tmp ; [L891] int tmp___0 ; [L892] int tmp___1 ; [L893] int tmp___2 ; [L896] splverifierCounter = 0 [L898] COND TRUE 1 [L900] COND TRUE splverifierCounter < 4 [L906] tmp = __VERIFIER_nondet_int() [L908] COND TRUE \read(tmp) [L910] CALL waterRise() [L205] COND TRUE waterLevel < 2 [L206] waterLevel = waterLevel + 1 [L910] RET waterRise() [L916] tmp___0 = __VERIFIER_nondet_int() [L918] COND FALSE !(\read(tmp___0)) [L926] tmp___2 = __VERIFIER_nondet_int() [L928] COND FALSE !(\read(tmp___2)) [L934] tmp___1 = __VERIFIER_nondet_int() [L936] COND TRUE \read(tmp___1) [L938] CALL stopSystem() [L868] COND FALSE !(\read(pumpRunning)) [L875] systemActive = 0 [L938] RET stopSystem() [L945] CALL timeShift() [L702] COND FALSE !(\read(pumpRunning)) [L709] COND FALSE !(\read(systemActive)) [L717] CALL __utac_acc__Specification3_spec__1() [L151] int tmp ; [L152] int tmp___0 ; [L153] int tmp___1 ; [L157] CALL, EXPR isMethaneLevelCritical() [L226] int retValue_acc ; [L229] retValue_acc = methaneLevelCritical [L230] return (retValue_acc); [L157] RET, EXPR isMethaneLevelCritical() [L157] tmp = isMethaneLevelCritical() [L159] COND FALSE !(\read(tmp)) [L163] CALL, EXPR getWaterLevel() [L258] int retValue_acc ; [L261] retValue_acc = waterLevel [L262] return (retValue_acc); [L163] RET, EXPR getWaterLevel() [L163] tmp___0 = getWaterLevel() [L165] COND TRUE tmp___0 == 2 [L167] CALL, EXPR isPumpRunning() [L801] int retValue_acc ; [L804] retValue_acc = pumpRunning [L805] return (retValue_acc); [L167] RET, EXPR isPumpRunning() [L167] tmp___1 = isPumpRunning() [L169] COND FALSE !(\read(tmp___1)) [L173] CALL __automaton_fail() [L320] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product44.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 247 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 23.1s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 10.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 470 SDtfs, 913 SDslu, 427 SDs, 0 SdLazy, 1908 SolverSat, 562 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 3.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=764occurred 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: 0.5s AutomataMinimizationTime, 3 MinimizatonAttempts, 242 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 11.1s InterpolantComputationTime, 252 NumberOfCodeBlocks, 252 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 181 ConstructedInterpolants, 0 QuantifiedInterpolants, 61248 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...