/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 log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product08.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 13:56:44,263 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 13:56:44,267 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 13:56:44,306 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 13:56:44,306 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 13:56:44,314 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 13:56:44,315 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 13:56:44,320 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 13:56:44,323 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 13:56:44,323 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 13:56:44,324 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 13:56:44,325 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 13:56:44,326 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 13:56:44,326 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 13:56:44,327 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 13:56:44,328 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 13:56:44,329 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 13:56:44,330 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 13:56:44,331 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 13:56:44,333 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 13:56:44,334 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 13:56:44,335 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 13:56:44,336 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 13:56:44,337 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 13:56:44,339 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 13:56:44,339 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 13:56:44,340 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 13:56:44,340 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 13:56:44,341 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 13:56:44,342 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-21 13:56:44,342 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 13:56:44,342 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 13:56:44,343 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 13:56:44,344 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 13:56:44,345 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 13:56:44,345 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 13:56:44,345 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 13:56:44,346 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 13:56:44,346 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 13:56:44,347 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 13:56:44,347 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 13:56:44,348 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 [2020-08-21 13:56:44,370 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 13:56:44,370 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 13:56:44,371 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 13:56:44,371 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 13:56:44,372 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 13:56:44,372 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 13:56:44,372 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 13:56:44,372 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 13:56:44,372 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 13:56:44,373 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 13:56:44,373 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 13:56:44,373 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 13:56:44,373 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 13:56:44,373 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 13:56:44,373 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 13:56:44,374 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 13:56:44,374 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 13:56:44,374 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 13:56:44,374 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 13:56:44,374 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 13:56:44,375 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 13:56:44,375 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 13:56:44,375 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 13:56:44,375 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 13:56:44,375 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 13:56:44,376 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 13:56:44,376 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 13:56:44,376 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 13:56:44,376 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 13:56:44,376 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 -> log-additional-information=true; [2020-08-21 13:56:44,678 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 13:56:44,693 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 13:56:44,700 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 13:56:44,701 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 13:56:44,702 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 13:56:44,704 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product08.cil.c [2020-08-21 13:56:44,781 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/90c01ef24/ae791a1f4852493a9c8509faf3a589a4/FLAGdaec903f9 [2020-08-21 13:56:45,310 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 13:56:45,311 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product08.cil.c [2020-08-21 13:56:45,327 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/90c01ef24/ae791a1f4852493a9c8509faf3a589a4/FLAGdaec903f9 [2020-08-21 13:56:45,626 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/90c01ef24/ae791a1f4852493a9c8509faf3a589a4 [2020-08-21 13:56:45,634 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 13:56:45,636 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 13:56:45,637 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 13:56:45,637 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 13:56:45,641 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 13:56:45,642 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 01:56:45" (1/1) ... [2020-08-21 13:56:45,645 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b40a8fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:56:45, skipping insertion in model container [2020-08-21 13:56:45,645 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 01:56:45" (1/1) ... [2020-08-21 13:56:45,653 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 13:56:45,693 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 13:56:46,118 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 13:56:46,135 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 13:56:46,209 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 13:56:46,246 INFO L208 MainTranslator]: Completed translation [2020-08-21 13:56:46,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:56:46 WrapperNode [2020-08-21 13:56:46,248 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 13:56:46,249 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 13:56:46,249 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 13:56:46,249 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 13:56:46,260 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:56:46" (1/1) ... [2020-08-21 13:56:46,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:56:46" (1/1) ... [2020-08-21 13:56:46,279 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:56:46" (1/1) ... [2020-08-21 13:56:46,279 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:56:46" (1/1) ... [2020-08-21 13:56:46,307 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:56:46" (1/1) ... [2020-08-21 13:56:46,317 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:56:46" (1/1) ... [2020-08-21 13:56:46,322 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:56:46" (1/1) ... [2020-08-21 13:56:46,330 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 13:56:46,330 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 13:56:46,330 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 13:56:46,331 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 13:56:46,331 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:56:46" (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 [2020-08-21 13:56:46,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 13:56:46,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 13:56:46,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-21 13:56:46,393 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-08-21 13:56:46,398 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-21 13:56:46,398 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-21 13:56:46,398 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-21 13:56:46,398 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-21 13:56:46,399 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-21 13:56:46,399 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-21 13:56:46,399 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-21 13:56:46,399 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-21 13:56:46,399 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-21 13:56:46,399 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-21 13:56:46,399 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-21 13:56:46,400 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-21 13:56:46,400 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-21 13:56:46,400 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-21 13:56:46,400 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-21 13:56:46,400 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-21 13:56:46,400 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-21 13:56:46,401 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-21 13:56:46,401 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-21 13:56:46,401 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-21 13:56:46,401 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-21 13:56:46,401 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-21 13:56:46,401 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-21 13:56:46,402 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-08-21 13:56:46,402 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-21 13:56:46,402 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-21 13:56:46,402 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-21 13:56:46,402 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-21 13:56:46,402 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-21 13:56:46,403 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-21 13:56:46,403 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-21 13:56:46,403 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-21 13:56:46,403 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 13:56:46,403 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 13:56:46,403 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 13:56:46,404 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-21 13:56:46,404 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-21 13:56:46,404 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-21 13:56:46,404 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-21 13:56:46,404 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-21 13:56:46,404 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-08-21 13:56:46,404 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-21 13:56:46,405 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-21 13:56:46,405 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-21 13:56:46,405 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-21 13:56:46,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-21 13:56:46,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-21 13:56:46,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-21 13:56:46,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-21 13:56:46,406 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-21 13:56:46,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-21 13:56:46,406 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-21 13:56:46,406 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-21 13:56:46,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-21 13:56:46,407 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-21 13:56:46,407 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-21 13:56:46,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-21 13:56:46,407 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-21 13:56:46,407 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-21 13:56:46,407 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-21 13:56:46,408 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-21 13:56:46,408 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-21 13:56:46,408 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-08-21 13:56:46,408 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-21 13:56:46,408 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-21 13:56:46,408 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-21 13:56:46,408 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-21 13:56:46,409 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-21 13:56:46,409 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-21 13:56:46,409 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-21 13:56:46,409 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-21 13:56:46,409 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-21 13:56:46,409 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-21 13:56:46,409 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-21 13:56:46,410 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-21 13:56:46,410 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-21 13:56:46,410 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-21 13:56:46,410 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-21 13:56:46,410 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-21 13:56:46,410 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-21 13:56:46,411 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 13:56:46,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 13:56:46,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-21 13:56:46,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 13:56:47,470 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 13:56:47,471 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-21 13:56:47,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 01:56:47 BoogieIcfgContainer [2020-08-21 13:56:47,477 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 13:56:47,478 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 13:56:47,478 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 13:56:47,481 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 13:56:47,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 01:56:45" (1/3) ... [2020-08-21 13:56:47,483 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79d80811 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 01:56:47, skipping insertion in model container [2020-08-21 13:56:47,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:56:46" (2/3) ... [2020-08-21 13:56:47,483 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79d80811 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 01:56:47, skipping insertion in model container [2020-08-21 13:56:47,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 01:56:47" (3/3) ... [2020-08-21 13:56:47,486 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product08.cil.c [2020-08-21 13:56:47,497 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 13:56:47,505 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 13:56:47,519 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 13:56:47,544 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 13:56:47,545 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 13:56:47,545 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 13:56:47,545 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 13:56:47,545 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 13:56:47,546 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 13:56:47,546 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 13:56:47,546 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 13:56:47,568 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states. [2020-08-21 13:56:47,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-08-21 13:56:47,579 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:56:47,580 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] [2020-08-21 13:56:47,580 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:56:47,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:56:47,587 INFO L82 PathProgramCache]: Analyzing trace with hash 2078323826, now seen corresponding path program 1 times [2020-08-21 13:56:47,596 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:56:47,596 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [533732742] [2020-08-21 13:56:47,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:56:47,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:48,248 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-21 13:56:48,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:56:48,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:48,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 13:56:48,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:48,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 13:56:48,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:48,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 13:56:48,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:48,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 13:56:48,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:48,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-21 13:56:48,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:48,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-21 13:56:48,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:48,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-21 13:56:48,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:48,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 13:56:48,373 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [533732742] [2020-08-21 13:56:48,375 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 13:56:48,380 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-21 13:56:48,382 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347878081] [2020-08-21 13:56:48,388 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-21 13:56:48,389 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:56:48,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-21 13:56:48,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-21 13:56:48,406 INFO L87 Difference]: Start difference. First operand 158 states. Second operand 3 states. [2020-08-21 13:56:49,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:56:49,500 INFO L93 Difference]: Finished difference Result 272 states and 360 transitions. [2020-08-21 13:56:49,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-21 13:56:49,503 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-08-21 13:56:49,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:56:49,524 INFO L225 Difference]: With dead ends: 272 [2020-08-21 13:56:49,524 INFO L226 Difference]: Without dead ends: 148 [2020-08-21 13:56:49,530 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 [2020-08-21 13:56:49,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-08-21 13:56:49,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 115. [2020-08-21 13:56:49,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-08-21 13:56:49,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 135 transitions. [2020-08-21 13:56:49,656 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 135 transitions. Word has length 52 [2020-08-21 13:56:49,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:56:49,657 INFO L479 AbstractCegarLoop]: Abstraction has 115 states and 135 transitions. [2020-08-21 13:56:49,657 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-21 13:56:49,657 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 135 transitions. [2020-08-21 13:56:49,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-08-21 13:56:49,661 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:56:49,661 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] [2020-08-21 13:56:49,661 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 13:56:49,662 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:56:49,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:56:49,662 INFO L82 PathProgramCache]: Analyzing trace with hash 883286197, now seen corresponding path program 1 times [2020-08-21 13:56:49,662 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:56:49,663 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2013419427] [2020-08-21 13:56:49,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:56:49,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:50,004 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-21 13:56:50,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:56:50,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:50,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 13:56:50,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:50,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 13:56:50,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:50,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 13:56:50,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:50,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 13:56:50,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:50,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-21 13:56:50,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:50,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-21 13:56:50,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:50,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-21 13:56:50,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:50,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 13:56:50,051 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2013419427] [2020-08-21 13:56:50,051 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 13:56:50,051 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-21 13:56:50,052 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849676323] [2020-08-21 13:56:50,054 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-21 13:56:50,055 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:56:50,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-21 13:56:50,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-21 13:56:50,055 INFO L87 Difference]: Start difference. First operand 115 states and 135 transitions. Second operand 4 states. [2020-08-21 13:56:50,436 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 13:56:51,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:56:51,182 INFO L93 Difference]: Finished difference Result 195 states and 239 transitions. [2020-08-21 13:56:51,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-21 13:56:51,183 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-08-21 13:56:51,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:56:51,186 INFO L225 Difference]: With dead ends: 195 [2020-08-21 13:56:51,186 INFO L226 Difference]: Without dead ends: 132 [2020-08-21 13:56:51,188 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 [2020-08-21 13:56:51,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-08-21 13:56:51,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 106. [2020-08-21 13:56:51,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-08-21 13:56:51,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 123 transitions. [2020-08-21 13:56:51,222 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 123 transitions. Word has length 53 [2020-08-21 13:56:51,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:56:51,222 INFO L479 AbstractCegarLoop]: Abstraction has 106 states and 123 transitions. [2020-08-21 13:56:51,223 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-21 13:56:51,223 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 123 transitions. [2020-08-21 13:56:51,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-08-21 13:56:51,225 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:56:51,226 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 13:56:51,226 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 13:56:51,226 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:56:51,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:56:51,226 INFO L82 PathProgramCache]: Analyzing trace with hash -2055351283, now seen corresponding path program 1 times [2020-08-21 13:56:51,227 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:56:51,227 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1297503572] [2020-08-21 13:56:51,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:56:51,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:51,602 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-21 13:56:51,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:56:51,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:51,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 13:56:51,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:51,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 13:56:51,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:51,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 13:56:51,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:51,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 13:56:51,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:51,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-21 13:56:51,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:51,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-21 13:56:51,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:51,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-21 13:56:51,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:51,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 13:56:51,726 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1297503572] [2020-08-21 13:56:51,727 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 13:56:51,727 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-21 13:56:51,727 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341073795] [2020-08-21 13:56:51,728 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 13:56:51,728 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:56:51,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 13:56:51,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-21 13:56:51,729 INFO L87 Difference]: Start difference. First operand 106 states and 123 transitions. Second operand 8 states. [2020-08-21 13:56:52,070 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-21 13:56:52,387 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 13:56:52,661 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 13:56:52,924 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 13:56:53,679 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 13:56:55,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:56:55,209 INFO L93 Difference]: Finished difference Result 375 states and 467 transitions. [2020-08-21 13:56:55,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-21 13:56:55,211 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2020-08-21 13:56:55,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:56:55,216 INFO L225 Difference]: With dead ends: 375 [2020-08-21 13:56:55,216 INFO L226 Difference]: Without dead ends: 293 [2020-08-21 13:56:55,217 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-08-21 13:56:55,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-08-21 13:56:55,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 232. [2020-08-21 13:56:55,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-08-21 13:56:55,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 281 transitions. [2020-08-21 13:56:55,288 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 281 transitions. Word has length 58 [2020-08-21 13:56:55,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:56:55,289 INFO L479 AbstractCegarLoop]: Abstraction has 232 states and 281 transitions. [2020-08-21 13:56:55,289 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 13:56:55,289 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 281 transitions. [2020-08-21 13:56:55,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-08-21 13:56:55,292 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:56:55,292 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] [2020-08-21 13:56:55,292 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 13:56:55,292 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:56:55,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:56:55,293 INFO L82 PathProgramCache]: Analyzing trace with hash -1417899682, now seen corresponding path program 1 times [2020-08-21 13:56:55,293 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:56:55,293 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [42342650] [2020-08-21 13:56:55,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:56:55,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:55,623 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-21 13:56:55,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:56:55,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:55,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 13:56:55,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:55,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 13:56:55,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:55,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 13:56:55,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:55,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 13:56:55,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:55,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-21 13:56:55,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:55,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-21 13:56:55,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:55,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-21 13:56:55,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:55,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-21 13:56:55,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:55,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 13:56:55,720 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [42342650] [2020-08-21 13:56:55,720 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 13:56:55,721 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-21 13:56:55,721 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825739694] [2020-08-21 13:56:55,721 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 13:56:55,721 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:56:55,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 13:56:55,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-21 13:56:55,722 INFO L87 Difference]: Start difference. First operand 232 states and 281 transitions. Second operand 8 states. [2020-08-21 13:56:56,086 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-21 13:56:57,420 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 13:56:57,781 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 13:56:58,049 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 13:56:58,296 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-21 13:56:58,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:56:58,896 INFO L93 Difference]: Finished difference Result 711 states and 941 transitions. [2020-08-21 13:56:58,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-21 13:56:58,897 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2020-08-21 13:56:58,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:56:58,908 INFO L225 Difference]: With dead ends: 711 [2020-08-21 13:56:58,908 INFO L226 Difference]: Without dead ends: 503 [2020-08-21 13:56:58,913 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-08-21 13:56:58,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2020-08-21 13:56:59,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 437. [2020-08-21 13:56:59,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2020-08-21 13:56:59,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 543 transitions. [2020-08-21 13:56:59,047 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 543 transitions. Word has length 63 [2020-08-21 13:56:59,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:56:59,047 INFO L479 AbstractCegarLoop]: Abstraction has 437 states and 543 transitions. [2020-08-21 13:56:59,048 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 13:56:59,048 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 543 transitions. [2020-08-21 13:56:59,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-08-21 13:56:59,051 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:56:59,051 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] [2020-08-21 13:56:59,051 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 13:56:59,051 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:56:59,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:56:59,052 INFO L82 PathProgramCache]: Analyzing trace with hash -1714463836, now seen corresponding path program 1 times [2020-08-21 13:56:59,052 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:56:59,052 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [273582737] [2020-08-21 13:56:59,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:56:59,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-21 13:56:59,108 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-21 13:56:59,108 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-21 13:56:59,112 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-21 13:56:59,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 01:56:59 BoogieIcfgContainer [2020-08-21 13:56:59,135 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-21 13:56:59,137 INFO L168 Benchmark]: Toolchain (without parser) took 13500.66 ms. Allocated memory was 140.0 MB in the beginning and 480.2 MB in the end (delta: 340.3 MB). Free memory was 102.2 MB in the beginning and 411.5 MB in the end (delta: -309.3 MB). Peak memory consumption was 31.0 MB. Max. memory is 7.1 GB. [2020-08-21 13:56:59,137 INFO L168 Benchmark]: CDTParser took 0.57 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-21 13:56:59,138 INFO L168 Benchmark]: CACSL2BoogieTranslator took 611.10 ms. Allocated memory was 140.0 MB in the beginning and 202.4 MB in the end (delta: 62.4 MB). Free memory was 102.0 MB in the beginning and 169.9 MB in the end (delta: -67.9 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB. [2020-08-21 13:56:59,139 INFO L168 Benchmark]: Boogie Preprocessor took 81.30 ms. Allocated memory is still 202.4 MB. Free memory was 169.9 MB in the beginning and 165.6 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2020-08-21 13:56:59,140 INFO L168 Benchmark]: RCFGBuilder took 1146.51 ms. Allocated memory was 202.4 MB in the beginning and 235.4 MB in the end (delta: 33.0 MB). Free memory was 164.9 MB in the beginning and 194.9 MB in the end (delta: -30.0 MB). Peak memory consumption was 80.8 MB. Max. memory is 7.1 GB. [2020-08-21 13:56:59,141 INFO L168 Benchmark]: TraceAbstraction took 11656.84 ms. Allocated memory was 235.4 MB in the beginning and 480.2 MB in the end (delta: 244.8 MB). Free memory was 194.9 MB in the beginning and 411.5 MB in the end (delta: -216.6 MB). Peak memory consumption was 28.3 MB. Max. memory is 7.1 GB. [2020-08-21 13:56:59,145 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 611.10 ms. Allocated memory was 140.0 MB in the beginning and 202.4 MB in the end (delta: 62.4 MB). Free memory was 102.0 MB in the beginning and 169.9 MB in the end (delta: -67.9 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 81.30 ms. Allocated memory is still 202.4 MB. Free memory was 169.9 MB in the beginning and 165.6 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1146.51 ms. Allocated memory was 202.4 MB in the beginning and 235.4 MB in the end (delta: 33.0 MB). Free memory was 164.9 MB in the beginning and 194.9 MB in the end (delta: -30.0 MB). Peak memory consumption was 80.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11656.84 ms. Allocated memory was 235.4 MB in the beginning and 480.2 MB in the end (delta: 244.8 MB). Free memory was 194.9 MB in the beginning and 411.5 MB in the end (delta: -216.6 MB). Peak memory consumption was 28.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 532]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L247] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L448] int waterLevel = 1; [L449] int methaneLevelCritical = 0; [L613] int pumpRunning = 0; [L614] int systemActive = 1; [L807] int cleanupTimeShifts = 4; [L880] int retValue_acc ; [L881] int tmp ; [L885] FCALL select_helpers() [L886] FCALL select_features() [L887] CALL, EXPR valid_product() [L798] int retValue_acc ; [L801] retValue_acc = 1 [L802] return (retValue_acc); [L887] RET, EXPR valid_product() [L887] tmp = valid_product() [L889] COND TRUE \read(tmp) [L891] FCALL setup() [L892] CALL runTest() [L874] CALL test() [L542] int splverifierCounter ; [L543] int tmp ; [L544] int tmp___0 ; [L545] int tmp___1 ; [L546] int tmp___2 ; [L549] splverifierCounter = 0 [L551] COND TRUE 1 [L553] COND TRUE splverifierCounter < 4 [L559] tmp = __VERIFIER_nondet_int() [L561] COND TRUE \read(tmp) [L563] CALL waterRise() [L466] COND TRUE waterLevel < 2 [L467] waterLevel = waterLevel + 1 [L563] RET waterRise() [L569] tmp___0 = __VERIFIER_nondet_int() [L571] COND FALSE !(\read(tmp___0)) [L579] tmp___2 = __VERIFIER_nondet_int() [L581] COND FALSE !(\read(tmp___2)) [L587] tmp___1 = __VERIFIER_nondet_int() [L589] COND TRUE \read(tmp___1) [L591] CALL stopSystem() [L749] COND FALSE !(\read(pumpRunning)) [L756] systemActive = 0 [L591] RET stopSystem() [L598] CALL timeShift() [L620] COND FALSE !(\read(pumpRunning)) [L627] COND FALSE !(\read(systemActive)) [L635] CALL __utac_acc__Specification3_spec__1() [L45] int tmp ; [L46] int tmp___0 ; [L47] int tmp___1 ; [L51] CALL, EXPR isMethaneLevelCritical() [L487] int retValue_acc ; [L490] retValue_acc = methaneLevelCritical [L491] return (retValue_acc); [L51] RET, EXPR isMethaneLevelCritical() [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) [L57] CALL, EXPR getWaterLevel() [L519] int retValue_acc ; [L522] retValue_acc = waterLevel [L523] return (retValue_acc); [L57] RET, EXPR getWaterLevel() [L57] tmp___0 = getWaterLevel() [L59] COND TRUE tmp___0 == 2 [L61] CALL, EXPR isPumpRunning() [L701] int retValue_acc ; [L704] retValue_acc = pumpRunning [L705] return (retValue_acc); [L61] RET, EXPR isPumpRunning() [L61] tmp___1 = isPumpRunning() [L63] COND FALSE !(\read(tmp___1)) [L67] CALL __automaton_fail() [L532] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 217 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 11.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 8.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 444 SDtfs, 588 SDslu, 377 SDs, 0 SdLazy, 1731 SolverSat, 371 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=437occurred 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: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 186 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 293 NumberOfCodeBlocks, 293 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 222 ConstructedInterpolants, 0 QuantifiedInterpolants, 62058 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...