/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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 --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product03.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 20:07:22,328 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 20:07:22,331 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 20:07:22,363 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 20:07:22,364 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 20:07:22,373 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 20:07:22,375 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 20:07:22,377 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 20:07:22,380 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 20:07:22,381 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 20:07:22,382 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 20:07:22,384 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 20:07:22,385 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 20:07:22,388 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 20:07:22,390 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 20:07:22,391 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 20:07:22,393 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 20:07:22,395 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 20:07:22,397 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 20:07:22,403 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 20:07:22,404 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 20:07:22,406 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 20:07:22,407 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 20:07:22,408 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 20:07:22,420 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-18 20:07:22,421 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-18 20:07:22,421 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-18 20:07:22,422 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-18 20:07:22,422 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-18 20:07:22,425 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-18 20:07:22,425 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-18 20:07:22,426 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-18 20:07:22,430 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-18 20:07:22,431 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-18 20:07:22,435 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-18 20:07:22,435 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-18 20:07:22,436 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-18 20:07:22,436 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-18 20:07:22,436 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 20:07:22,437 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 20:07:22,437 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 20:07:22,438 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 [2020-08-18 20:07:22,473 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 20:07:22,473 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 20:07:22,474 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 20:07:22,474 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 20:07:22,474 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 20:07:22,475 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 20:07:22,475 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 20:07:22,475 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 20:07:22,475 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 20:07:22,475 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 20:07:22,476 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 20:07:22,476 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 20:07:22,476 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 20:07:22,476 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 20:07:22,476 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 20:07:22,477 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 20:07:22,477 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 20:07:22,477 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 20:07:22,477 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 20:07:22,477 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 20:07:22,478 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 20:07:22,478 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 20:07:22,478 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 20:07:22,478 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 20:07:22,478 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 20:07:22,478 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 20:07:22,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 20:07:22,479 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 20:07:22,479 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 20:07:22,479 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SHALLOWEST; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SHALLOWEST; [2020-08-18 20:07:22,810 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 20:07:22,820 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 20:07:22,824 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 20:07:22,828 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 20:07:22,830 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 20:07:22,831 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product03.cil.c [2020-08-18 20:07:22,909 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4502b8e9d/b836a4c39620446abae78023e4e0b853/FLAG5a7d94064 [2020-08-18 20:07:23,450 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 20:07:23,450 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product03.cil.c [2020-08-18 20:07:23,465 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4502b8e9d/b836a4c39620446abae78023e4e0b853/FLAG5a7d94064 [2020-08-18 20:07:23,753 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4502b8e9d/b836a4c39620446abae78023e4e0b853 [2020-08-18 20:07:23,763 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 20:07:23,765 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 20:07:23,766 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 20:07:23,767 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 20:07:23,772 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 20:07:23,773 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 08:07:23" (1/1) ... [2020-08-18 20:07:23,776 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@559d5a1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:07:23, skipping insertion in model container [2020-08-18 20:07:23,777 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 08:07:23" (1/1) ... [2020-08-18 20:07:23,785 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 20:07:23,831 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 20:07:24,248 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 20:07:24,263 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 20:07:24,397 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 20:07:24,435 INFO L208 MainTranslator]: Completed translation [2020-08-18 20:07:24,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:07:24 WrapperNode [2020-08-18 20:07:24,436 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 20:07:24,437 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 20:07:24,437 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 20:07:24,437 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 20:07:24,448 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:07:24" (1/1) ... [2020-08-18 20:07:24,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:07:24" (1/1) ... [2020-08-18 20:07:24,468 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:07:24" (1/1) ... [2020-08-18 20:07:24,468 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:07:24" (1/1) ... [2020-08-18 20:07:24,500 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:07:24" (1/1) ... [2020-08-18 20:07:24,511 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:07:24" (1/1) ... [2020-08-18 20:07:24,516 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:07:24" (1/1) ... [2020-08-18 20:07:24,523 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 20:07:24,524 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 20:07:24,524 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 20:07:24,525 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 20:07:24,525 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:07:24" (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 [2020-08-18 20:07:24,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 20:07:24,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 20:07:24,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-18 20:07:24,593 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-18 20:07:24,593 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-18 20:07:24,594 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-18 20:07:24,594 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-18 20:07:24,594 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-18 20:07:24,595 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-18 20:07:24,595 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-18 20:07:24,596 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-18 20:07:24,596 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-18 20:07:24,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-18 20:07:24,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-18 20:07:24,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-18 20:07:24,597 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-18 20:07:24,597 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-18 20:07:24,597 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-18 20:07:24,598 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-18 20:07:24,598 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-18 20:07:24,598 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-18 20:07:24,599 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-18 20:07:24,599 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-18 20:07:24,599 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-08-18 20:07:24,600 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-18 20:07:24,601 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-18 20:07:24,601 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-18 20:07:24,602 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-18 20:07:24,602 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 20:07:24,602 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-18 20:07:24,602 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-18 20:07:24,602 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-18 20:07:24,602 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-18 20:07:24,603 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-18 20:07:24,603 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-18 20:07:24,603 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 20:07:24,603 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 20:07:24,603 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-18 20:07:24,603 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-18 20:07:24,604 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-18 20:07:24,604 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-18 20:07:24,604 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-18 20:07:24,604 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-18 20:07:24,604 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-18 20:07:24,604 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-18 20:07:24,604 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-18 20:07:24,605 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-18 20:07:24,605 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-18 20:07:24,605 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-18 20:07:24,605 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-18 20:07:24,605 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-18 20:07:24,605 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-08-18 20:07:24,606 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-18 20:07:24,606 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-18 20:07:24,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-18 20:07:24,606 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-18 20:07:24,606 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-18 20:07:24,606 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-18 20:07:24,607 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-18 20:07:24,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-18 20:07:24,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-18 20:07:24,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-18 20:07:24,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-18 20:07:24,607 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-18 20:07:24,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-18 20:07:24,608 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-18 20:07:24,608 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-18 20:07:24,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-18 20:07:24,608 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-18 20:07:24,608 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-18 20:07:24,608 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-18 20:07:24,609 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-18 20:07:24,609 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-18 20:07:24,610 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-18 20:07:24,610 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-18 20:07:24,610 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-18 20:07:24,610 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-18 20:07:24,611 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-18 20:07:24,612 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-18 20:07:24,612 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-18 20:07:24,612 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 20:07:24,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 20:07:24,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-18 20:07:24,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 20:07:25,642 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 20:07:25,642 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-18 20:07:25,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 08:07:25 BoogieIcfgContainer [2020-08-18 20:07:25,653 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 20:07:25,656 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 20:07:25,656 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 20:07:25,659 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 20:07:25,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 08:07:23" (1/3) ... [2020-08-18 20:07:25,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bdd8932 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 08:07:25, skipping insertion in model container [2020-08-18 20:07:25,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:07:24" (2/3) ... [2020-08-18 20:07:25,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bdd8932 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 08:07:25, skipping insertion in model container [2020-08-18 20:07:25,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 08:07:25" (3/3) ... [2020-08-18 20:07:25,664 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product03.cil.c [2020-08-18 20:07:25,675 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 20:07:25,684 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 20:07:25,698 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 20:07:25,725 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 20:07:25,726 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 20:07:25,726 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 20:07:25,726 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 20:07:25,726 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 20:07:25,726 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 20:07:25,726 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 20:07:25,727 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 20:07:25,746 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states. [2020-08-18 20:07:25,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-08-18 20:07:25,756 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:07:25,757 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] [2020-08-18 20:07:25,757 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:07:25,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:07:25,762 INFO L82 PathProgramCache]: Analyzing trace with hash 512275600, now seen corresponding path program 1 times [2020-08-18 20:07:25,769 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:07:25,769 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1900977754] [2020-08-18 20:07:25,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:07:25,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:07:26,451 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 20:07:26,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:07:26,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:07:26,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 20:07:26,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:07:26,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 20:07:26,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:07:26,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 20:07:26,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:07:26,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 20:07:26,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:07:26,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 20:07:26,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:07:26,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-18 20:07:26,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:07:26,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-18 20:07:26,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:07:26,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 20:07:26,578 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1900977754] [2020-08-18 20:07:26,580 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 20:07:26,581 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-18 20:07:26,582 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061043020] [2020-08-18 20:07:26,588 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-18 20:07:26,588 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:07:26,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-18 20:07:26,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-18 20:07:26,607 INFO L87 Difference]: Start difference. First operand 142 states. Second operand 3 states. [2020-08-18 20:07:27,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:07:27,622 INFO L93 Difference]: Finished difference Result 231 states and 307 transitions. [2020-08-18 20:07:27,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-18 20:07:27,624 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-08-18 20:07:27,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:07:27,638 INFO L225 Difference]: With dead ends: 231 [2020-08-18 20:07:27,638 INFO L226 Difference]: Without dead ends: 126 [2020-08-18 20:07:27,642 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-18 20:07:27,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-08-18 20:07:27,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 96. [2020-08-18 20:07:27,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-08-18 20:07:27,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 111 transitions. [2020-08-18 20:07:27,726 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 111 transitions. Word has length 52 [2020-08-18 20:07:27,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:07:27,727 INFO L479 AbstractCegarLoop]: Abstraction has 96 states and 111 transitions. [2020-08-18 20:07:27,727 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-18 20:07:27,727 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 111 transitions. [2020-08-18 20:07:27,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-08-18 20:07:27,731 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:07:27,731 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] [2020-08-18 20:07:27,731 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 20:07:27,731 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:07:27,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:07:27,732 INFO L82 PathProgramCache]: Analyzing trace with hash 1858874248, now seen corresponding path program 1 times [2020-08-18 20:07:27,732 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:07:27,733 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2101578389] [2020-08-18 20:07:27,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:07:27,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:07:28,085 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 20:07:28,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:07:28,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:07:28,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 20:07:28,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:07:28,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 20:07:28,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:07:28,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 20:07:28,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:07:28,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 20:07:28,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:07:28,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-18 20:07:28,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:07:28,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-18 20:07:28,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:07:28,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-18 20:07:28,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:07:28,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 20:07:28,161 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2101578389] [2020-08-18 20:07:28,161 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 20:07:28,161 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-18 20:07:28,162 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026910852] [2020-08-18 20:07:28,164 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-18 20:07:28,165 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:07:28,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-18 20:07:28,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-18 20:07:28,165 INFO L87 Difference]: Start difference. First operand 96 states and 111 transitions. Second operand 4 states. [2020-08-18 20:07:28,617 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 20:07:29,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:07:29,124 INFO L93 Difference]: Finished difference Result 155 states and 188 transitions. [2020-08-18 20:07:29,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-18 20:07:29,125 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-08-18 20:07:29,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:07:29,127 INFO L225 Difference]: With dead ends: 155 [2020-08-18 20:07:29,128 INFO L226 Difference]: Without dead ends: 110 [2020-08-18 20:07:29,129 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-18 20:07:29,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-08-18 20:07:29,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 87. [2020-08-18 20:07:29,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-08-18 20:07:29,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 99 transitions. [2020-08-18 20:07:29,185 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 99 transitions. Word has length 53 [2020-08-18 20:07:29,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:07:29,185 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 99 transitions. [2020-08-18 20:07:29,185 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-18 20:07:29,186 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 99 transitions. [2020-08-18 20:07:29,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-08-18 20:07:29,188 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:07:29,188 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] [2020-08-18 20:07:29,188 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 20:07:29,188 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:07:29,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:07:29,189 INFO L82 PathProgramCache]: Analyzing trace with hash 865102310, now seen corresponding path program 1 times [2020-08-18 20:07:29,189 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:07:29,189 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [54554811] [2020-08-18 20:07:29,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:07:29,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:07:29,479 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 20:07:29,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:07:29,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:07:29,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 20:07:29,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:07:29,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 20:07:29,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:07:29,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 20:07:29,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:07:29,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 20:07:29,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:07:29,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:07:29,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:07:29,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-18 20:07:29,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:07:29,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-18 20:07:29,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:07:29,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 20:07:29,587 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [54554811] [2020-08-18 20:07:29,587 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 20:07:29,587 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-18 20:07:29,589 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838315782] [2020-08-18 20:07:29,589 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 20:07:29,590 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:07:29,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 20:07:29,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-18 20:07:29,590 INFO L87 Difference]: Start difference. First operand 87 states and 99 transitions. Second operand 8 states. [2020-08-18 20:07:29,966 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 20:07:30,306 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 20:07:30,556 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 20:07:30,795 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 20:07:31,497 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 20:07:32,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:07:32,569 INFO L93 Difference]: Finished difference Result 311 states and 384 transitions. [2020-08-18 20:07:32,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-18 20:07:32,570 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57 [2020-08-18 20:07:32,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:07:32,574 INFO L225 Difference]: With dead ends: 311 [2020-08-18 20:07:32,574 INFO L226 Difference]: Without dead ends: 248 [2020-08-18 20:07:32,575 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-08-18 20:07:32,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2020-08-18 20:07:32,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 186. [2020-08-18 20:07:32,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2020-08-18 20:07:32,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 221 transitions. [2020-08-18 20:07:32,633 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 221 transitions. Word has length 57 [2020-08-18 20:07:32,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:07:32,633 INFO L479 AbstractCegarLoop]: Abstraction has 186 states and 221 transitions. [2020-08-18 20:07:32,633 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 20:07:32,633 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 221 transitions. [2020-08-18 20:07:32,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-08-18 20:07:32,635 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:07:32,635 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] [2020-08-18 20:07:32,636 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 20:07:32,636 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:07:32,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:07:32,636 INFO L82 PathProgramCache]: Analyzing trace with hash 27342424, now seen corresponding path program 1 times [2020-08-18 20:07:32,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:07:32,637 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1729317145] [2020-08-18 20:07:32,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:07:32,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:07:32,947 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 20:07:32,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:07:32,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:07:33,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 20:07:33,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:07:33,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 20:07:33,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:07:33,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 20:07:33,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:07:33,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 20:07:33,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:07:33,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-08-18 20:07:33,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:07:33,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-18 20:07:33,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:07:33,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-18 20:07:33,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:07:33,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-08-18 20:07:33,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:07:33,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 20:07:33,045 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1729317145] [2020-08-18 20:07:33,045 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 20:07:33,045 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-18 20:07:33,046 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513023501] [2020-08-18 20:07:33,046 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 20:07:33,047 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:07:33,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 20:07:33,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-08-18 20:07:33,048 INFO L87 Difference]: Start difference. First operand 186 states and 221 transitions. Second operand 7 states. [2020-08-18 20:07:33,453 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 20:07:34,452 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 20:07:34,733 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 20:07:34,985 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 20:07:35,236 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 20:07:35,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:07:35,515 INFO L93 Difference]: Finished difference Result 524 states and 668 transitions. [2020-08-18 20:07:35,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-18 20:07:35,516 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 60 [2020-08-18 20:07:35,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:07:35,520 INFO L225 Difference]: With dead ends: 524 [2020-08-18 20:07:35,520 INFO L226 Difference]: Without dead ends: 362 [2020-08-18 20:07:35,530 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-08-18 20:07:35,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2020-08-18 20:07:35,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 341. [2020-08-18 20:07:35,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 341 states. [2020-08-18 20:07:35,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 417 transitions. [2020-08-18 20:07:35,648 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 417 transitions. Word has length 60 [2020-08-18 20:07:35,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:07:35,648 INFO L479 AbstractCegarLoop]: Abstraction has 341 states and 417 transitions. [2020-08-18 20:07:35,648 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 20:07:35,649 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 417 transitions. [2020-08-18 20:07:35,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-08-18 20:07:35,651 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:07:35,651 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] [2020-08-18 20:07:35,652 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 20:07:35,652 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:07:35,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:07:35,652 INFO L82 PathProgramCache]: Analyzing trace with hash 2049443282, now seen corresponding path program 1 times [2020-08-18 20:07:35,653 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:07:35,653 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [294612108] [2020-08-18 20:07:35,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:07:35,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-18 20:07:35,711 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-18 20:07:35,712 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-18 20:07:35,716 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 20:07:35,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 08:07:35 BoogieIcfgContainer [2020-08-18 20:07:35,736 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-18 20:07:35,738 INFO L168 Benchmark]: Toolchain (without parser) took 11972.60 ms. Allocated memory was 144.7 MB in the beginning and 406.8 MB in the end (delta: 262.1 MB). Free memory was 100.3 MB in the beginning and 336.0 MB in the end (delta: -235.7 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. [2020-08-18 20:07:35,738 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 144.7 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-18 20:07:35,739 INFO L168 Benchmark]: CACSL2BoogieTranslator took 669.89 ms. Allocated memory was 144.7 MB in the beginning and 202.4 MB in the end (delta: 57.7 MB). Free memory was 100.1 MB in the beginning and 172.2 MB in the end (delta: -72.1 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. [2020-08-18 20:07:35,740 INFO L168 Benchmark]: Boogie Preprocessor took 87.11 ms. Allocated memory is still 202.4 MB. Free memory was 172.2 MB in the beginning and 168.2 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-08-18 20:07:35,741 INFO L168 Benchmark]: RCFGBuilder took 1128.70 ms. Allocated memory was 202.4 MB in the beginning and 235.4 MB in the end (delta: 33.0 MB). Free memory was 168.2 MB in the beginning and 203.5 MB in the end (delta: -35.3 MB). Peak memory consumption was 85.7 MB. Max. memory is 7.1 GB. [2020-08-18 20:07:35,742 INFO L168 Benchmark]: TraceAbstraction took 10080.35 ms. Allocated memory was 235.4 MB in the beginning and 406.8 MB in the end (delta: 171.4 MB). Free memory was 202.0 MB in the beginning and 336.0 MB in the end (delta: -134.0 MB). Peak memory consumption was 37.5 MB. Max. memory is 7.1 GB. [2020-08-18 20:07:35,745 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 144.7 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 669.89 ms. Allocated memory was 144.7 MB in the beginning and 202.4 MB in the end (delta: 57.7 MB). Free memory was 100.1 MB in the beginning and 172.2 MB in the end (delta: -72.1 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 87.11 ms. Allocated memory is still 202.4 MB. Free memory was 172.2 MB in the beginning and 168.2 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1128.70 ms. Allocated memory was 202.4 MB in the beginning and 235.4 MB in the end (delta: 33.0 MB). Free memory was 168.2 MB in the beginning and 203.5 MB in the end (delta: -35.3 MB). Peak memory consumption was 85.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10080.35 ms. Allocated memory was 235.4 MB in the beginning and 406.8 MB in the end (delta: 171.4 MB). Free memory was 202.0 MB in the beginning and 336.0 MB in the end (delta: -134.0 MB). Peak memory consumption was 37.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 650]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L119] int pumpRunning = 0; [L120] int systemActive = 1; [L411] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L690] int cleanupTimeShifts = 4; [L786] int waterLevel = 1; [L787] int methaneLevelCritical = 0; [L763] int retValue_acc ; [L764] int tmp ; [L768] FCALL select_helpers() [L769] FCALL select_features() [L770] CALL, EXPR valid_product() [L637] int retValue_acc ; [L640] retValue_acc = 1 [L641] return (retValue_acc); [L770] RET, EXPR valid_product() [L770] tmp = valid_product() [L772] COND TRUE \read(tmp) [L774] FCALL setup() [L775] CALL runTest() [L757] CALL test() [L46] int splverifierCounter ; [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L50] int tmp___2 ; [L53] splverifierCounter = 0 [L55] COND TRUE 1 [L57] COND TRUE splverifierCounter < 4 [L63] tmp = __VERIFIER_nondet_int() [L65] COND TRUE \read(tmp) [L67] CALL waterRise() [L804] COND TRUE waterLevel < 2 [L805] waterLevel = waterLevel + 1 [L67] RET waterRise() [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp___2) [L100] CALL timeShift() [L127] COND FALSE !(\read(pumpRunning)) [L134] COND TRUE \read(systemActive) [L136] FCALL processEnvironment() [L142] CALL __utac_acc__Specification3_spec__1() [L657] int tmp ; [L658] int tmp___0 ; [L659] int tmp___1 ; [L663] CALL, EXPR isMethaneLevelCritical() [L825] int retValue_acc ; [L828] retValue_acc = methaneLevelCritical [L829] return (retValue_acc); [L663] RET, EXPR isMethaneLevelCritical() [L663] tmp = isMethaneLevelCritical() [L665] COND FALSE !(\read(tmp)) [L669] CALL, EXPR getWaterLevel() [L857] int retValue_acc ; [L860] retValue_acc = waterLevel [L861] return (retValue_acc); [L669] RET, EXPR getWaterLevel() [L669] tmp___0 = getWaterLevel() [L671] COND TRUE tmp___0 == 2 [L673] CALL, EXPR isPumpRunning() [L182] int retValue_acc ; [L185] retValue_acc = pumpRunning [L186] return (retValue_acc); [L673] RET, EXPR isPumpRunning() [L673] tmp___1 = isPumpRunning() [L675] COND FALSE !(\read(tmp___1)) [L679] CALL __automaton_fail() [L650] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 35 procedures, 203 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 9.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 7.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 349 SDtfs, 467 SDslu, 318 SDs, 0 SdLazy, 1249 SolverSat, 248 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 101 GetRequests, 75 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=341occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 136 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 286 NumberOfCodeBlocks, 286 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 218 ConstructedInterpolants, 0 QuantifiedInterpolants, 59906 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...